Make Python build standalone on Windows

PYTHON-MANIFEST.in

@@ -7,6 +7,7 @@ graft include/grpc
 graft third_party/boringssl
 graft third_party/nanopb
 graft third_party/zlib
+include src/python/grpcio/build.py
 include src/python/grpcio/commands.py
 include src/python/grpcio/grpc_version.py
 include src/python/grpcio/grpc_core_dependencies.py

setup.py

@@ -31,6 +31,7 @@
 
 import os
 import os.path
+import platform
 import shlex
 import shutil
 import sys
@@ -56,10 +57,15 @@ os.chdir(os.path.dirname(os.path.abspath(__file__)))
 sys.path.insert(0, os.path.abspath(PYTHON_STEM))
 
 # Break import-style to ensure we can actually find our in-repo dependencies.
+import build
 import commands
 import grpc_core_dependencies
 import grpc_version
 
+# TODO(atash) make this conditional on being on a mingw32 build
+build.monkeypatch_unix_compiler()
+
+
 LICENSE = '3-clause BSD'
 
 # Environment variable to determine whether or not the Cython extension should
@@ -72,6 +78,14 @@ BUILD_WITH_CYTHON = os.environ.get('GRPC_PYTHON_BUILD_WITH_CYTHON', False)
 ENABLE_CYTHON_TRACING = os.environ.get(
     'GRPC_PYTHON_ENABLE_CYTHON_TRACING', False)
 
+# There are some situations (like on Windows) where CC, CFLAGS, and LDFLAGS are
+# entirely ignored/dropped/forgotten by distutils and its Cygwin/MinGW support.
+# We use these environment variables to thus get around that without locking
+# ourselves in w.r.t. the multitude of operating systems this ought to build on.
+# By default we assume a GCC-like compiler.
+EXTRA_COMPILE_ARGS = shlex.split(os.environ.get('GRPC_PYTHON_CFLAGS', ''))
+EXTRA_LINK_ARGS = shlex.split(os.environ.get('GRPC_PYTHON_LDFLAGS', ''))
+
 CYTHON_EXTENSION_PACKAGE_NAMES = ()
 
 CYTHON_EXTENSION_MODULE_NAMES = ('grpc._cython.cygrpc',)
@@ -81,9 +95,7 @@ CYTHON_HELPER_C_FILES = (
     os.path.join(PYTHON_STEM, 'grpc/_cython/imports.generated.c'),
 )
 
-CORE_C_FILES = ()
-if not "win32" in sys.platform:
-  CORE_C_FILES += tuple(grpc_core_dependencies.CORE_SOURCE_FILES)
+CORE_C_FILES = tuple(grpc_core_dependencies.CORE_SOURCE_FILES)
 
 EXTENSION_INCLUDE_DIRECTORIES = (
     (PYTHON_STEM,) + CORE_INCLUDE + BORINGSSL_INCLUDE + ZLIB_INCLUDE)
@@ -93,12 +105,17 @@ if "linux" in sys.platform:
   EXTENSION_LIBRARIES += ('rt',)
 if not "win32" in sys.platform:
   EXTENSION_LIBRARIES += ('m',)
+if "win32" in sys.platform:
+  EXTENSION_LIBRARIES += ('ws2_32',)
 
 DEFINE_MACROS = (('OPENSSL_NO_ASM', 1), ('_WIN32_WINNT', 0x600), ('GPR_BACKWARDS_COMPATIBILITY_MODE', 1),)
+if "win32" in sys.platform:
+  DEFINE_MACROS += (('OPENSSL_WINDOWS', 1), ('WIN32_LEAN_AND_MEAN', 1),)
+  if '64bit' in platform.architecture()[0]:
+    DEFINE_MACROS += (('MS_WIN64', 1),)
 
-LDFLAGS = shlex.split(os.environ.get('GRPC_PYTHON_LDFLAGS', ''))
-CFLAGS = shlex.split(os.environ.get('GRPC_PYTHON_CFLAGS', ''))
-
+LDFLAGS = tuple(EXTRA_LINK_ARGS)
+CFLAGS = tuple(EXTRA_COMPILE_ARGS)
 if "linux" in sys.platform:
   LDFLAGS += ('-Wl,-wrap,memcpy',)
 if "linux" in sys.platform or "darwin" in sys.platform:

src/python/grpcio/build.py

@@ -0,0 +1,117 @@
+# Copyright 2016, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""Covers inadequacies in distutils."""
+
+from distutils import ccompiler
+from distutils import errors
+from distutils import unixccompiler
+import os
+import os.path
+import shutil
+import sys
+import tempfile
+
+
+def _unix_piecemeal_link(
+    self, target_desc, objects, output_filename, output_dir=None,
+    libraries=None, library_dirs=None, runtime_library_dirs=None,
+    export_symbols=None, debug=0, extra_preargs=None, extra_postargs=None,
+    build_temp=None, target_lang=None):
+  """`link` externalized method taken almost verbatim from UnixCCompiler.
+
+  Modifies the link command for unix-like compilers by using a command file so
+  that long command line argument strings don't break the command shell's
+  ARG_MAX character limit.
+  """
+  objects, output_dir = self._fix_object_args(objects, output_dir)
+  libraries, library_dirs, runtime_library_dirs = self._fix_lib_args(
+      libraries, library_dirs, runtime_library_dirs)
+  # filter out standard library paths, which are not explicitely needed
+  # for linking
+  library_dirs = [dir for dir in library_dirs
+                  if not dir in ('/lib', '/lib64', '/usr/lib', '/usr/lib64')]
+  runtime_library_dirs = [dir for dir in runtime_library_dirs
+                          if not dir in ('/lib', '/lib64', '/usr/lib', '/usr/lib64')]
+  lib_opts = ccompiler.gen_lib_options(self, library_dirs, runtime_library_dirs,
+                             libraries)
+  if not isinstance(output_dir, basestring) and output_dir is not None:
+    raise TypeError, "'output_dir' must be a string or None"
+  if output_dir is not None:
+    output_filename = os.path.join(output_dir, output_filename)
+
+  if self._need_link(objects, output_filename):
+    ld_args = (objects + self.objects +
+               lib_opts + ['-o', output_filename])
+    if debug:
+      ld_args[:0] = ['-g']
+    if extra_preargs:
+      ld_args[:0] = extra_preargs
+    if extra_postargs:
+      ld_args.extend(extra_postargs)
+    self.mkpath(os.path.dirname(output_filename))
+    try:
+      if target_desc == ccompiler.CCompiler.EXECUTABLE:
+        linker = self.linker_exe[:]
+      else:
+        linker = self.linker_so[:]
+      if target_lang == "c++" and self.compiler_cxx:
+        # skip over environment variable settings if /usr/bin/env
+        # is used to set up the linker's environment.
+        # This is needed on OSX. Note: this assumes that the
+        # normal and C++ compiler have the same environment
+        # settings.
+        i = 0
+        if os.path.basename(linker[0]) == "env":
+          i = 1
+          while '=' in linker[i]:
+            i = i + 1
+
+        linker[i] = self.compiler_cxx[i]
+
+      if sys.platform == 'darwin':
+        import _osx_support
+        linker = _osx_support.compiler_fixup(linker, ld_args)
+
+      temporary_directory = tempfile.mkdtemp()
+      command_filename = os.path.abspath(
+          os.path.join(temporary_directory, 'command'))
+      with open(command_filename, 'w') as command_file:
+        escaped_ld_args = [arg.replace('\\', '\\\\') for arg in ld_args]
+        command_file.write(' '.join(escaped_ld_args))
+      self.spawn(linker + ['@{}'.format(command_filename)])
+    except errors.DistutilsExecError, msg:
+      raise ccompiler.LinkError, msg
+  else:
+    log.debug("skipping %s (up-to-date)", output_filename)
+
+def monkeypatch_unix_compiler():
+  """Monkeypatching is dumb, but it's either that or we become maintainers of
+     something much, much bigger."""
+  unixccompiler.UnixCCompiler.link = _unix_piecemeal_link

src/python/grpcio/grpc/_cython/imports.generated.c

@@ -31,562 +31,7 @@
  *
  */
 
+/* TODO(atash) remove cruft */
 #include <grpc/support/port_platform.h>
 
 #include "imports.generated.h"
-
-#ifdef GPR_WINDOWS
-
-census_initialize_type census_initialize_import;
-census_shutdown_type census_shutdown_import;
-census_supported_type census_supported_import;
-census_enabled_type census_enabled_import;
-census_context_create_type census_context_create_import;
-census_context_destroy_type census_context_destroy_import;
-census_context_get_status_type census_context_get_status_import;
-census_context_initialize_iterator_type census_context_initialize_iterator_import;
-census_context_next_tag_type census_context_next_tag_import;
-census_context_get_tag_type census_context_get_tag_import;
-census_context_encode_type census_context_encode_import;
-census_context_decode_type census_context_decode_import;
-census_trace_mask_type census_trace_mask_import;
-census_set_trace_mask_type census_set_trace_mask_import;
-census_start_rpc_op_timestamp_type census_start_rpc_op_timestamp_import;
-census_start_client_rpc_op_type census_start_client_rpc_op_import;
-census_set_rpc_client_peer_type census_set_rpc_client_peer_import;
-census_start_server_rpc_op_type census_start_server_rpc_op_import;
-census_start_op_type census_start_op_import;
-census_end_op_type census_end_op_import;
-census_trace_print_type census_trace_print_import;
-census_trace_scan_start_type census_trace_scan_start_import;
-census_get_trace_record_type census_get_trace_record_import;
-census_trace_scan_end_type census_trace_scan_end_import;
-census_record_values_type census_record_values_import;
-census_view_create_type census_view_create_import;
-census_view_delete_type census_view_delete_import;
-census_view_metric_type census_view_metric_import;
-census_view_naggregations_type census_view_naggregations_import;
-census_view_tags_type census_view_tags_import;
-census_view_aggregrations_type census_view_aggregrations_import;
-census_view_get_data_type census_view_get_data_import;
-census_view_reset_type census_view_reset_import;
-grpc_compression_algorithm_parse_type grpc_compression_algorithm_parse_import;
-grpc_compression_algorithm_name_type grpc_compression_algorithm_name_import;
-grpc_compression_algorithm_for_level_type grpc_compression_algorithm_for_level_import;
-grpc_compression_options_init_type grpc_compression_options_init_import;
-grpc_compression_options_enable_algorithm_type grpc_compression_options_enable_algorithm_import;
-grpc_compression_options_disable_algorithm_type grpc_compression_options_disable_algorithm_import;
-grpc_compression_options_is_algorithm_enabled_type grpc_compression_options_is_algorithm_enabled_import;
-grpc_metadata_array_init_type grpc_metadata_array_init_import;
-grpc_metadata_array_destroy_type grpc_metadata_array_destroy_import;
-grpc_call_details_init_type grpc_call_details_init_import;
-grpc_call_details_destroy_type grpc_call_details_destroy_import;
-grpc_register_plugin_type grpc_register_plugin_import;
-grpc_init_type grpc_init_import;
-grpc_shutdown_type grpc_shutdown_import;
-grpc_version_string_type grpc_version_string_import;
-grpc_completion_queue_create_type grpc_completion_queue_create_import;
-grpc_completion_queue_next_type grpc_completion_queue_next_import;
-grpc_completion_queue_pluck_type grpc_completion_queue_pluck_import;
-grpc_completion_queue_shutdown_type grpc_completion_queue_shutdown_import;
-grpc_completion_queue_destroy_type grpc_completion_queue_destroy_import;
-grpc_alarm_create_type grpc_alarm_create_import;
-grpc_alarm_cancel_type grpc_alarm_cancel_import;
-grpc_alarm_destroy_type grpc_alarm_destroy_import;
-grpc_channel_check_connectivity_state_type grpc_channel_check_connectivity_state_import;
-grpc_channel_watch_connectivity_state_type grpc_channel_watch_connectivity_state_import;
-grpc_channel_create_call_type grpc_channel_create_call_import;
-grpc_channel_ping_type grpc_channel_ping_import;
-grpc_channel_register_call_type grpc_channel_register_call_import;
-grpc_channel_create_registered_call_type grpc_channel_create_registered_call_import;
-grpc_call_start_batch_type grpc_call_start_batch_import;
-grpc_call_get_peer_type grpc_call_get_peer_import;
-grpc_census_call_set_context_type grpc_census_call_set_context_import;
-grpc_census_call_get_context_type grpc_census_call_get_context_import;
-grpc_channel_get_target_type grpc_channel_get_target_import;
-grpc_insecure_channel_create_type grpc_insecure_channel_create_import;
-grpc_lame_client_channel_create_type grpc_lame_client_channel_create_import;
-grpc_channel_destroy_type grpc_channel_destroy_import;
-grpc_call_cancel_type grpc_call_cancel_import;
-grpc_call_cancel_with_status_type grpc_call_cancel_with_status_import;
-grpc_call_destroy_type grpc_call_destroy_import;
-grpc_server_request_call_type grpc_server_request_call_import;
-grpc_server_register_method_type grpc_server_register_method_import;
-grpc_server_request_registered_call_type grpc_server_request_registered_call_import;
-grpc_server_create_type grpc_server_create_import;
-grpc_server_register_completion_queue_type grpc_server_register_completion_queue_import;
-grpc_server_register_non_listening_completion_queue_type grpc_server_register_non_listening_completion_queue_import;
-grpc_server_add_insecure_http2_port_type grpc_server_add_insecure_http2_port_import;
-grpc_server_start_type grpc_server_start_import;
-grpc_server_shutdown_and_notify_type grpc_server_shutdown_and_notify_import;
-grpc_server_cancel_all_calls_type grpc_server_cancel_all_calls_import;
-grpc_server_destroy_type grpc_server_destroy_import;
-grpc_tracer_set_enabled_type grpc_tracer_set_enabled_import;
-grpc_header_key_is_legal_type grpc_header_key_is_legal_import;
-grpc_header_nonbin_value_is_legal_type grpc_header_nonbin_value_is_legal_import;
-grpc_is_binary_header_type grpc_is_binary_header_import;
-grpc_call_error_to_string_type grpc_call_error_to_string_import;
-grpc_insecure_channel_create_from_fd_type grpc_insecure_channel_create_from_fd_import;
-grpc_server_add_insecure_channel_from_fd_type grpc_server_add_insecure_channel_from_fd_import;
-grpc_use_signal_type grpc_use_signal_import;
-grpc_auth_property_iterator_next_type grpc_auth_property_iterator_next_import;
-grpc_auth_context_property_iterator_type grpc_auth_context_property_iterator_import;
-grpc_auth_context_peer_identity_type grpc_auth_context_peer_identity_import;
-grpc_auth_context_find_properties_by_name_type grpc_auth_context_find_properties_by_name_import;
-grpc_auth_context_peer_identity_property_name_type grpc_auth_context_peer_identity_property_name_import;
-grpc_auth_context_peer_is_authenticated_type grpc_auth_context_peer_is_authenticated_import;
-grpc_call_auth_context_type grpc_call_auth_context_import;
-grpc_auth_context_release_type grpc_auth_context_release_import;
-grpc_auth_context_add_property_type grpc_auth_context_add_property_import;
-grpc_auth_context_add_cstring_property_type grpc_auth_context_add_cstring_property_import;
-grpc_auth_context_set_peer_identity_property_name_type grpc_auth_context_set_peer_identity_property_name_import;
-grpc_channel_credentials_release_type grpc_channel_credentials_release_import;
-grpc_google_default_credentials_create_type grpc_google_default_credentials_create_import;
-grpc_set_ssl_roots_override_callback_type grpc_set_ssl_roots_override_callback_import;
-grpc_ssl_credentials_create_type grpc_ssl_credentials_create_import;
-grpc_call_credentials_release_type grpc_call_credentials_release_import;
-grpc_composite_channel_credentials_create_type grpc_composite_channel_credentials_create_import;
-grpc_composite_call_credentials_create_type grpc_composite_call_credentials_create_import;
-grpc_google_compute_engine_credentials_create_type grpc_google_compute_engine_credentials_create_import;
-grpc_max_auth_token_lifetime_type grpc_max_auth_token_lifetime_import;
-grpc_service_account_jwt_access_credentials_create_type grpc_service_account_jwt_access_credentials_create_import;
-grpc_google_refresh_token_credentials_create_type grpc_google_refresh_token_credentials_create_import;
-grpc_access_token_credentials_create_type grpc_access_token_credentials_create_import;
-grpc_google_iam_credentials_create_type grpc_google_iam_credentials_create_import;
-grpc_metadata_credentials_create_from_plugin_type grpc_metadata_credentials_create_from_plugin_import;
-grpc_secure_channel_create_type grpc_secure_channel_create_import;
-grpc_server_credentials_release_type grpc_server_credentials_release_import;
-grpc_ssl_server_credentials_create_type grpc_ssl_server_credentials_create_import;
-grpc_ssl_server_credentials_create_ex_type grpc_ssl_server_credentials_create_ex_import;
-grpc_server_add_secure_http2_port_type grpc_server_add_secure_http2_port_import;
-grpc_call_set_credentials_type grpc_call_set_credentials_import;
-grpc_server_credentials_set_auth_metadata_processor_type grpc_server_credentials_set_auth_metadata_processor_import;
-gpr_malloc_type gpr_malloc_import;
-gpr_free_type gpr_free_import;
-gpr_realloc_type gpr_realloc_import;
-gpr_malloc_aligned_type gpr_malloc_aligned_import;
-gpr_free_aligned_type gpr_free_aligned_import;
-gpr_set_allocation_functions_type gpr_set_allocation_functions_import;
-gpr_get_allocation_functions_type gpr_get_allocation_functions_import;
-grpc_raw_byte_buffer_create_type grpc_raw_byte_buffer_create_import;
-grpc_raw_compressed_byte_buffer_create_type grpc_raw_compressed_byte_buffer_create_import;
-grpc_byte_buffer_copy_type grpc_byte_buffer_copy_import;
-grpc_byte_buffer_length_type grpc_byte_buffer_length_import;
-grpc_byte_buffer_destroy_type grpc_byte_buffer_destroy_import;
-grpc_byte_buffer_reader_init_type grpc_byte_buffer_reader_init_import;
-grpc_byte_buffer_reader_destroy_type grpc_byte_buffer_reader_destroy_import;
-grpc_byte_buffer_reader_next_type grpc_byte_buffer_reader_next_import;
-grpc_byte_buffer_reader_readall_type grpc_byte_buffer_reader_readall_import;
-grpc_raw_byte_buffer_from_reader_type grpc_raw_byte_buffer_from_reader_import;
-gpr_log_type gpr_log_import;
-gpr_log_message_type gpr_log_message_import;
-gpr_set_log_verbosity_type gpr_set_log_verbosity_import;
-gpr_log_verbosity_init_type gpr_log_verbosity_init_import;
-gpr_set_log_function_type gpr_set_log_function_import;
-gpr_slice_ref_type gpr_slice_ref_import;
-gpr_slice_unref_type gpr_slice_unref_import;
-gpr_slice_new_type gpr_slice_new_import;
-gpr_slice_new_with_len_type gpr_slice_new_with_len_import;
-gpr_slice_malloc_type gpr_slice_malloc_import;
-gpr_slice_from_copied_string_type gpr_slice_from_copied_string_import;
-gpr_slice_from_copied_buffer_type gpr_slice_from_copied_buffer_import;
-gpr_slice_from_static_string_type gpr_slice_from_static_string_import;
-gpr_slice_sub_type gpr_slice_sub_import;
-gpr_slice_sub_no_ref_type gpr_slice_sub_no_ref_import;
-gpr_slice_split_tail_type gpr_slice_split_tail_import;
-gpr_slice_split_head_type gpr_slice_split_head_import;
-gpr_empty_slice_type gpr_empty_slice_import;
-gpr_slice_cmp_type gpr_slice_cmp_import;
-gpr_slice_str_cmp_type gpr_slice_str_cmp_import;
-gpr_slice_buffer_init_type gpr_slice_buffer_init_import;
-gpr_slice_buffer_destroy_type gpr_slice_buffer_destroy_import;
-gpr_slice_buffer_add_type gpr_slice_buffer_add_import;
-gpr_slice_buffer_add_indexed_type gpr_slice_buffer_add_indexed_import;
-gpr_slice_buffer_addn_type gpr_slice_buffer_addn_import;
-gpr_slice_buffer_tiny_add_type gpr_slice_buffer_tiny_add_import;
-gpr_slice_buffer_pop_type gpr_slice_buffer_pop_import;
-gpr_slice_buffer_reset_and_unref_type gpr_slice_buffer_reset_and_unref_import;
-gpr_slice_buffer_swap_type gpr_slice_buffer_swap_import;
-gpr_slice_buffer_move_into_type gpr_slice_buffer_move_into_import;
-gpr_slice_buffer_trim_end_type gpr_slice_buffer_trim_end_import;
-gpr_slice_buffer_move_first_type gpr_slice_buffer_move_first_import;
-gpr_slice_buffer_take_first_type gpr_slice_buffer_take_first_import;
-gpr_mu_init_type gpr_mu_init_import;
-gpr_mu_destroy_type gpr_mu_destroy_import;
-gpr_mu_lock_type gpr_mu_lock_import;
-gpr_mu_unlock_type gpr_mu_unlock_import;
-gpr_mu_trylock_type gpr_mu_trylock_import;
-gpr_cv_init_type gpr_cv_init_import;
-gpr_cv_destroy_type gpr_cv_destroy_import;
-gpr_cv_wait_type gpr_cv_wait_import;
-gpr_cv_signal_type gpr_cv_signal_import;
-gpr_cv_broadcast_type gpr_cv_broadcast_import;
-gpr_once_init_type gpr_once_init_import;
-gpr_event_init_type gpr_event_init_import;
-gpr_event_set_type gpr_event_set_import;
-gpr_event_get_type gpr_event_get_import;
-gpr_event_wait_type gpr_event_wait_import;
-gpr_ref_init_type gpr_ref_init_import;
-gpr_ref_type gpr_ref_import;
-gpr_ref_non_zero_type gpr_ref_non_zero_import;
-gpr_refn_type gpr_refn_import;
-gpr_unref_type gpr_unref_import;
-gpr_stats_init_type gpr_stats_init_import;
-gpr_stats_inc_type gpr_stats_inc_import;
-gpr_stats_read_type gpr_stats_read_import;
-gpr_time_0_type gpr_time_0_import;
-gpr_inf_future_type gpr_inf_future_import;
-gpr_inf_past_type gpr_inf_past_import;
-gpr_time_init_type gpr_time_init_import;
-gpr_now_type gpr_now_import;
-gpr_convert_clock_type_type gpr_convert_clock_type_import;
-gpr_time_cmp_type gpr_time_cmp_import;
-gpr_time_max_type gpr_time_max_import;
-gpr_time_min_type gpr_time_min_import;
-gpr_time_add_type gpr_time_add_import;
-gpr_time_sub_type gpr_time_sub_import;
-gpr_time_from_micros_type gpr_time_from_micros_import;
-gpr_time_from_nanos_type gpr_time_from_nanos_import;
-gpr_time_from_millis_type gpr_time_from_millis_import;
-gpr_time_from_seconds_type gpr_time_from_seconds_import;
-gpr_time_from_minutes_type gpr_time_from_minutes_import;
-gpr_time_from_hours_type gpr_time_from_hours_import;
-gpr_time_to_millis_type gpr_time_to_millis_import;
-gpr_time_similar_type gpr_time_similar_import;
-gpr_sleep_until_type gpr_sleep_until_import;
-gpr_timespec_to_micros_type gpr_timespec_to_micros_import;
-gpr_avl_create_type gpr_avl_create_import;
-gpr_avl_ref_type gpr_avl_ref_import;
-gpr_avl_unref_type gpr_avl_unref_import;
-gpr_avl_add_type gpr_avl_add_import;
-gpr_avl_remove_type gpr_avl_remove_import;
-gpr_avl_get_type gpr_avl_get_import;
-gpr_avl_maybe_get_type gpr_avl_maybe_get_import;
-gpr_avl_is_empty_type gpr_avl_is_empty_import;
-gpr_cmdline_create_type gpr_cmdline_create_import;
-gpr_cmdline_add_int_type gpr_cmdline_add_int_import;
-gpr_cmdline_add_flag_type gpr_cmdline_add_flag_import;
-gpr_cmdline_add_string_type gpr_cmdline_add_string_import;
-gpr_cmdline_on_extra_arg_type gpr_cmdline_on_extra_arg_import;
-gpr_cmdline_set_survive_failure_type gpr_cmdline_set_survive_failure_import;
-gpr_cmdline_parse_type gpr_cmdline_parse_import;
-gpr_cmdline_destroy_type gpr_cmdline_destroy_import;
-gpr_cmdline_usage_string_type gpr_cmdline_usage_string_import;
-gpr_cpu_num_cores_type gpr_cpu_num_cores_import;
-gpr_cpu_current_cpu_type gpr_cpu_current_cpu_import;
-gpr_histogram_create_type gpr_histogram_create_import;
-gpr_histogram_destroy_type gpr_histogram_destroy_import;
-gpr_histogram_add_type gpr_histogram_add_import;
-gpr_histogram_merge_type gpr_histogram_merge_import;
-gpr_histogram_percentile_type gpr_histogram_percentile_import;
-gpr_histogram_mean_type gpr_histogram_mean_import;
-gpr_histogram_stddev_type gpr_histogram_stddev_import;
-gpr_histogram_variance_type gpr_histogram_variance_import;
-gpr_histogram_maximum_type gpr_histogram_maximum_import;
-gpr_histogram_minimum_type gpr_histogram_minimum_import;
-gpr_histogram_count_type gpr_histogram_count_import;
-gpr_histogram_sum_type gpr_histogram_sum_import;
-gpr_histogram_sum_of_squares_type gpr_histogram_sum_of_squares_import;
-gpr_histogram_get_contents_type gpr_histogram_get_contents_import;
-gpr_histogram_merge_contents_type gpr_histogram_merge_contents_import;
-gpr_join_host_port_type gpr_join_host_port_import;
-gpr_split_host_port_type gpr_split_host_port_import;
-gpr_format_message_type gpr_format_message_import;
-gpr_strdup_type gpr_strdup_import;
-gpr_asprintf_type gpr_asprintf_import;
-gpr_subprocess_binary_extension_type gpr_subprocess_binary_extension_import;
-gpr_subprocess_create_type gpr_subprocess_create_import;
-gpr_subprocess_destroy_type gpr_subprocess_destroy_import;
-gpr_subprocess_join_type gpr_subprocess_join_import;
-gpr_subprocess_interrupt_type gpr_subprocess_interrupt_import;
-gpr_thd_new_type gpr_thd_new_import;
-gpr_thd_options_default_type gpr_thd_options_default_import;
-gpr_thd_options_set_detached_type gpr_thd_options_set_detached_import;
-gpr_thd_options_set_joinable_type gpr_thd_options_set_joinable_import;
-gpr_thd_options_is_detached_type gpr_thd_options_is_detached_import;
-gpr_thd_options_is_joinable_type gpr_thd_options_is_joinable_import;
-gpr_thd_currentid_type gpr_thd_currentid_import;
-gpr_thd_join_type gpr_thd_join_import;
-
-#ifdef __cplusplus
-extern "C" {
-#endif  /* __cpluslus */
-
-void pygrpc_load_imports(HMODULE library) {
-  census_initialize_import = (census_initialize_type) GetProcAddress(library, "census_initialize");
-  census_shutdown_import = (census_shutdown_type) GetProcAddress(library, "census_shutdown");
-  census_supported_import = (census_supported_type) GetProcAddress(library, "census_supported");
-  census_enabled_import = (census_enabled_type) GetProcAddress(library, "census_enabled");
-  census_context_create_import = (census_context_create_type) GetProcAddress(library, "census_context_create");
-  census_context_destroy_import = (census_context_destroy_type) GetProcAddress(library, "census_context_destroy");
-  census_context_get_status_import = (census_context_get_status_type) GetProcAddress(library, "census_context_get_status");
-  census_context_initialize_iterator_import = (census_context_initialize_iterator_type) GetProcAddress(library, "census_context_initialize_iterator");
-  census_context_next_tag_import = (census_context_next_tag_type) GetProcAddress(library, "census_context_next_tag");
-  census_context_get_tag_import = (census_context_get_tag_type) GetProcAddress(library, "census_context_get_tag");
-  census_context_encode_import = (census_context_encode_type) GetProcAddress(library, "census_context_encode");
-  census_context_decode_import = (census_context_decode_type) GetProcAddress(library, "census_context_decode");
-  census_trace_mask_import = (census_trace_mask_type) GetProcAddress(library, "census_trace_mask");
-  census_set_trace_mask_import = (census_set_trace_mask_type) GetProcAddress(library, "census_set_trace_mask");
-  census_start_rpc_op_timestamp_import = (census_start_rpc_op_timestamp_type) GetProcAddress(library, "census_start_rpc_op_timestamp");
-  census_start_client_rpc_op_import = (census_start_client_rpc_op_type) GetProcAddress(library, "census_start_client_rpc_op");
-  census_set_rpc_client_peer_import = (census_set_rpc_client_peer_type) GetProcAddress(library, "census_set_rpc_client_peer");
-  census_start_server_rpc_op_import = (census_start_server_rpc_op_type) GetProcAddress(library, "census_start_server_rpc_op");
-  census_start_op_import = (census_start_op_type) GetProcAddress(library, "census_start_op");
-  census_end_op_import = (census_end_op_type) GetProcAddress(library, "census_end_op");
-  census_trace_print_import = (census_trace_print_type) GetProcAddress(library, "census_trace_print");
-  census_trace_scan_start_import = (census_trace_scan_start_type) GetProcAddress(library, "census_trace_scan_start");
-  census_get_trace_record_import = (census_get_trace_record_type) GetProcAddress(library, "census_get_trace_record");
-  census_trace_scan_end_import = (census_trace_scan_end_type) GetProcAddress(library, "census_trace_scan_end");
-  census_record_values_import = (census_record_values_type) GetProcAddress(library, "census_record_values");
-  census_view_create_import = (census_view_create_type) GetProcAddress(library, "census_view_create");
-  census_view_delete_import = (census_view_delete_type) GetProcAddress(library, "census_view_delete");
-  census_view_metric_import = (census_view_metric_type) GetProcAddress(library, "census_view_metric");
-  census_view_naggregations_import = (census_view_naggregations_type) GetProcAddress(library, "census_view_naggregations");
-  census_view_tags_import = (census_view_tags_type) GetProcAddress(library, "census_view_tags");
-  census_view_aggregrations_import = (census_view_aggregrations_type) GetProcAddress(library, "census_view_aggregrations");
-  census_view_get_data_import = (census_view_get_data_type) GetProcAddress(library, "census_view_get_data");
-  census_view_reset_import = (census_view_reset_type) GetProcAddress(library, "census_view_reset");
-  grpc_compression_algorithm_parse_import = (grpc_compression_algorithm_parse_type) GetProcAddress(library, "grpc_compression_algorithm_parse");
-  grpc_compression_algorithm_name_import = (grpc_compression_algorithm_name_type) GetProcAddress(library, "grpc_compression_algorithm_name");
-  grpc_compression_algorithm_for_level_import = (grpc_compression_algorithm_for_level_type) GetProcAddress(library, "grpc_compression_algorithm_for_level");
-  grpc_compression_options_init_import = (grpc_compression_options_init_type) GetProcAddress(library, "grpc_compression_options_init");
-  grpc_compression_options_enable_algorithm_import = (grpc_compression_options_enable_algorithm_type) GetProcAddress(library, "grpc_compression_options_enable_algorithm");
-  grpc_compression_options_disable_algorithm_import = (grpc_compression_options_disable_algorithm_type) GetProcAddress(library, "grpc_compression_options_disable_algorithm");
-  grpc_compression_options_is_algorithm_enabled_import = (grpc_compression_options_is_algorithm_enabled_type) GetProcAddress(library, "grpc_compression_options_is_algorithm_enabled");
-  grpc_metadata_array_init_import = (grpc_metadata_array_init_type) GetProcAddress(library, "grpc_metadata_array_init");
-  grpc_metadata_array_destroy_import = (grpc_metadata_array_destroy_type) GetProcAddress(library, "grpc_metadata_array_destroy");
-  grpc_call_details_init_import = (grpc_call_details_init_type) GetProcAddress(library, "grpc_call_details_init");
-  grpc_call_details_destroy_import = (grpc_call_details_destroy_type) GetProcAddress(library, "grpc_call_details_destroy");
-  grpc_register_plugin_import = (grpc_register_plugin_type) GetProcAddress(library, "grpc_register_plugin");
-  grpc_init_import = (grpc_init_type) GetProcAddress(library, "grpc_init");
-  grpc_shutdown_import = (grpc_shutdown_type) GetProcAddress(library, "grpc_shutdown");
-  grpc_version_string_import = (grpc_version_string_type) GetProcAddress(library, "grpc_version_string");
-  grpc_completion_queue_create_import = (grpc_completion_queue_create_type) GetProcAddress(library, "grpc_completion_queue_create");
-  grpc_completion_queue_next_import = (grpc_completion_queue_next_type) GetProcAddress(library, "grpc_completion_queue_next");
-  grpc_completion_queue_pluck_import = (grpc_completion_queue_pluck_type) GetProcAddress(library, "grpc_completion_queue_pluck");
-  grpc_completion_queue_shutdown_import = (grpc_completion_queue_shutdown_type) GetProcAddress(library, "grpc_completion_queue_shutdown");
-  grpc_completion_queue_destroy_import = (grpc_completion_queue_destroy_type) GetProcAddress(library, "grpc_completion_queue_destroy");
-  grpc_alarm_create_import = (grpc_alarm_create_type) GetProcAddress(library, "grpc_alarm_create");
-  grpc_alarm_cancel_import = (grpc_alarm_cancel_type) GetProcAddress(library, "grpc_alarm_cancel");
-  grpc_alarm_destroy_import = (grpc_alarm_destroy_type) GetProcAddress(library, "grpc_alarm_destroy");
-  grpc_channel_check_connectivity_state_import = (grpc_channel_check_connectivity_state_type) GetProcAddress(library, "grpc_channel_check_connectivity_state");
-  grpc_channel_watch_connectivity_state_import = (grpc_channel_watch_connectivity_state_type) GetProcAddress(library, "grpc_channel_watch_connectivity_state");
-  grpc_channel_create_call_import = (grpc_channel_create_call_type) GetProcAddress(library, "grpc_channel_create_call");
-  grpc_channel_ping_import = (grpc_channel_ping_type) GetProcAddress(library, "grpc_channel_ping");
-  grpc_channel_register_call_import = (grpc_channel_register_call_type) GetProcAddress(library, "grpc_channel_register_call");
-  grpc_channel_create_registered_call_import = (grpc_channel_create_registered_call_type) GetProcAddress(library, "grpc_channel_create_registered_call");
-  grpc_call_start_batch_import = (grpc_call_start_batch_type) GetProcAddress(library, "grpc_call_start_batch");
-  grpc_call_get_peer_import = (grpc_call_get_peer_type) GetProcAddress(library, "grpc_call_get_peer");
-  grpc_census_call_set_context_import = (grpc_census_call_set_context_type) GetProcAddress(library, "grpc_census_call_set_context");
-  grpc_census_call_get_context_import = (grpc_census_call_get_context_type) GetProcAddress(library, "grpc_census_call_get_context");
-  grpc_channel_get_target_import = (grpc_channel_get_target_type) GetProcAddress(library, "grpc_channel_get_target");
-  grpc_insecure_channel_create_import = (grpc_insecure_channel_create_type) GetProcAddress(library, "grpc_insecure_channel_create");
-  grpc_lame_client_channel_create_import = (grpc_lame_client_channel_create_type) GetProcAddress(library, "grpc_lame_client_channel_create");
-  grpc_channel_destroy_import = (grpc_channel_destroy_type) GetProcAddress(library, "grpc_channel_destroy");
-  grpc_call_cancel_import = (grpc_call_cancel_type) GetProcAddress(library, "grpc_call_cancel");
-  grpc_call_cancel_with_status_import = (grpc_call_cancel_with_status_type) GetProcAddress(library, "grpc_call_cancel_with_status");
-  grpc_call_destroy_import = (grpc_call_destroy_type) GetProcAddress(library, "grpc_call_destroy");
-  grpc_server_request_call_import = (grpc_server_request_call_type) GetProcAddress(library, "grpc_server_request_call");
-  grpc_server_register_method_import = (grpc_server_register_method_type) GetProcAddress(library, "grpc_server_register_method");
-  grpc_server_request_registered_call_import = (grpc_server_request_registered_call_type) GetProcAddress(library, "grpc_server_request_registered_call");
-  grpc_server_create_import = (grpc_server_create_type) GetProcAddress(library, "grpc_server_create");
-  grpc_server_register_completion_queue_import = (grpc_server_register_completion_queue_type) GetProcAddress(library, "grpc_server_register_completion_queue");
-  grpc_server_register_non_listening_completion_queue_import = (grpc_server_register_non_listening_completion_queue_type) GetProcAddress(library, "grpc_server_register_non_listening_completion_queue");
-  grpc_server_add_insecure_http2_port_import = (grpc_server_add_insecure_http2_port_type) GetProcAddress(library, "grpc_server_add_insecure_http2_port");
-  grpc_server_start_import = (grpc_server_start_type) GetProcAddress(library, "grpc_server_start");
-  grpc_server_shutdown_and_notify_import = (grpc_server_shutdown_and_notify_type) GetProcAddress(library, "grpc_server_shutdown_and_notify");
-  grpc_server_cancel_all_calls_import = (grpc_server_cancel_all_calls_type) GetProcAddress(library, "grpc_server_cancel_all_calls");
-  grpc_server_destroy_import = (grpc_server_destroy_type) GetProcAddress(library, "grpc_server_destroy");
-  grpc_tracer_set_enabled_import = (grpc_tracer_set_enabled_type) GetProcAddress(library, "grpc_tracer_set_enabled");
-  grpc_header_key_is_legal_import = (grpc_header_key_is_legal_type) GetProcAddress(library, "grpc_header_key_is_legal");
-  grpc_header_nonbin_value_is_legal_import = (grpc_header_nonbin_value_is_legal_type) GetProcAddress(library, "grpc_header_nonbin_value_is_legal");
-  grpc_is_binary_header_import = (grpc_is_binary_header_type) GetProcAddress(library, "grpc_is_binary_header");
-  grpc_call_error_to_string_import = (grpc_call_error_to_string_type) GetProcAddress(library, "grpc_call_error_to_string");
-  grpc_insecure_channel_create_from_fd_import = (grpc_insecure_channel_create_from_fd_type) GetProcAddress(library, "grpc_insecure_channel_create_from_fd");
-  grpc_server_add_insecure_channel_from_fd_import = (grpc_server_add_insecure_channel_from_fd_type) GetProcAddress(library, "grpc_server_add_insecure_channel_from_fd");
-  grpc_use_signal_import = (grpc_use_signal_type) GetProcAddress(library, "grpc_use_signal");
-  grpc_auth_property_iterator_next_import = (grpc_auth_property_iterator_next_type) GetProcAddress(library, "grpc_auth_property_iterator_next");
-  grpc_auth_context_property_iterator_import = (grpc_auth_context_property_iterator_type) GetProcAddress(library, "grpc_auth_context_property_iterator");
-  grpc_auth_context_peer_identity_import = (grpc_auth_context_peer_identity_type) GetProcAddress(library, "grpc_auth_context_peer_identity");
-  grpc_auth_context_find_properties_by_name_import = (grpc_auth_context_find_properties_by_name_type) GetProcAddress(library, "grpc_auth_context_find_properties_by_name");
-  grpc_auth_context_peer_identity_property_name_import = (grpc_auth_context_peer_identity_property_name_type) GetProcAddress(library, "grpc_auth_context_peer_identity_property_name");
-  grpc_auth_context_peer_is_authenticated_import = (grpc_auth_context_peer_is_authenticated_type) GetProcAddress(library, "grpc_auth_context_peer_is_authenticated");
-  grpc_call_auth_context_import = (grpc_call_auth_context_type) GetProcAddress(library, "grpc_call_auth_context");
-  grpc_auth_context_release_import = (grpc_auth_context_release_type) GetProcAddress(library, "grpc_auth_context_release");
-  grpc_auth_context_add_property_import = (grpc_auth_context_add_property_type) GetProcAddress(library, "grpc_auth_context_add_property");
-  grpc_auth_context_add_cstring_property_import = (grpc_auth_context_add_cstring_property_type) GetProcAddress(library, "grpc_auth_context_add_cstring_property");
-  grpc_auth_context_set_peer_identity_property_name_import = (grpc_auth_context_set_peer_identity_property_name_type) GetProcAddress(library, "grpc_auth_context_set_peer_identity_property_name");
-  grpc_channel_credentials_release_import = (grpc_channel_credentials_release_type) GetProcAddress(library, "grpc_channel_credentials_release");
-  grpc_google_default_credentials_create_import = (grpc_google_default_credentials_create_type) GetProcAddress(library, "grpc_google_default_credentials_create");
-  grpc_set_ssl_roots_override_callback_import = (grpc_set_ssl_roots_override_callback_type) GetProcAddress(library, "grpc_set_ssl_roots_override_callback");
-  grpc_ssl_credentials_create_import = (grpc_ssl_credentials_create_type) GetProcAddress(library, "grpc_ssl_credentials_create");
-  grpc_call_credentials_release_import = (grpc_call_credentials_release_type) GetProcAddress(library, "grpc_call_credentials_release");
-  grpc_composite_channel_credentials_create_import = (grpc_composite_channel_credentials_create_type) GetProcAddress(library, "grpc_composite_channel_credentials_create");
-  grpc_composite_call_credentials_create_import = (grpc_composite_call_credentials_create_type) GetProcAddress(library, "grpc_composite_call_credentials_create");
-  grpc_google_compute_engine_credentials_create_import = (grpc_google_compute_engine_credentials_create_type) GetProcAddress(library, "grpc_google_compute_engine_credentials_create");
-  grpc_max_auth_token_lifetime_import = (grpc_max_auth_token_lifetime_type) GetProcAddress(library, "grpc_max_auth_token_lifetime");
-  grpc_service_account_jwt_access_credentials_create_import = (grpc_service_account_jwt_access_credentials_create_type) GetProcAddress(library, "grpc_service_account_jwt_access_credentials_create");
-  grpc_google_refresh_token_credentials_create_import = (grpc_google_refresh_token_credentials_create_type) GetProcAddress(library, "grpc_google_refresh_token_credentials_create");
-  grpc_access_token_credentials_create_import = (grpc_access_token_credentials_create_type) GetProcAddress(library, "grpc_access_token_credentials_create");
-  grpc_google_iam_credentials_create_import = (grpc_google_iam_credentials_create_type) GetProcAddress(library, "grpc_google_iam_credentials_create");
-  grpc_metadata_credentials_create_from_plugin_import = (grpc_metadata_credentials_create_from_plugin_type) GetProcAddress(library, "grpc_metadata_credentials_create_from_plugin");
-  grpc_secure_channel_create_import = (grpc_secure_channel_create_type) GetProcAddress(library, "grpc_secure_channel_create");
-  grpc_server_credentials_release_import = (grpc_server_credentials_release_type) GetProcAddress(library, "grpc_server_credentials_release");
-  grpc_ssl_server_credentials_create_import = (grpc_ssl_server_credentials_create_type) GetProcAddress(library, "grpc_ssl_server_credentials_create");
-  grpc_ssl_server_credentials_create_ex_import = (grpc_ssl_server_credentials_create_ex_type) GetProcAddress(library, "grpc_ssl_server_credentials_create_ex");
-  grpc_server_add_secure_http2_port_import = (grpc_server_add_secure_http2_port_type) GetProcAddress(library, "grpc_server_add_secure_http2_port");
-  grpc_call_set_credentials_import = (grpc_call_set_credentials_type) GetProcAddress(library, "grpc_call_set_credentials");
-  grpc_server_credentials_set_auth_metadata_processor_import = (grpc_server_credentials_set_auth_metadata_processor_type) GetProcAddress(library, "grpc_server_credentials_set_auth_metadata_processor");
-  gpr_malloc_import = (gpr_malloc_type) GetProcAddress(library, "gpr_malloc");
-  gpr_free_import = (gpr_free_type) GetProcAddress(library, "gpr_free");
-  gpr_realloc_import = (gpr_realloc_type) GetProcAddress(library, "gpr_realloc");
-  gpr_malloc_aligned_import = (gpr_malloc_aligned_type) GetProcAddress(library, "gpr_malloc_aligned");
-  gpr_free_aligned_import = (gpr_free_aligned_type) GetProcAddress(library, "gpr_free_aligned");
-  gpr_set_allocation_functions_import = (gpr_set_allocation_functions_type) GetProcAddress(library, "gpr_set_allocation_functions");
-  gpr_get_allocation_functions_import = (gpr_get_allocation_functions_type) GetProcAddress(library, "gpr_get_allocation_functions");
-  grpc_raw_byte_buffer_create_import = (grpc_raw_byte_buffer_create_type) GetProcAddress(library, "grpc_raw_byte_buffer_create");
-  grpc_raw_compressed_byte_buffer_create_import = (grpc_raw_compressed_byte_buffer_create_type) GetProcAddress(library, "grpc_raw_compressed_byte_buffer_create");
-  grpc_byte_buffer_copy_import = (grpc_byte_buffer_copy_type) GetProcAddress(library, "grpc_byte_buffer_copy");
-  grpc_byte_buffer_length_import = (grpc_byte_buffer_length_type) GetProcAddress(library, "grpc_byte_buffer_length");
-  grpc_byte_buffer_destroy_import = (grpc_byte_buffer_destroy_type) GetProcAddress(library, "grpc_byte_buffer_destroy");
-  grpc_byte_buffer_reader_init_import = (grpc_byte_buffer_reader_init_type) GetProcAddress(library, "grpc_byte_buffer_reader_init");
-  grpc_byte_buffer_reader_destroy_import = (grpc_byte_buffer_reader_destroy_type) GetProcAddress(library, "grpc_byte_buffer_reader_destroy");
-  grpc_byte_buffer_reader_next_import = (grpc_byte_buffer_reader_next_type) GetProcAddress(library, "grpc_byte_buffer_reader_next");
-  grpc_byte_buffer_reader_readall_import = (grpc_byte_buffer_reader_readall_type) GetProcAddress(library, "grpc_byte_buffer_reader_readall");
-  grpc_raw_byte_buffer_from_reader_import = (grpc_raw_byte_buffer_from_reader_type) GetProcAddress(library, "grpc_raw_byte_buffer_from_reader");
-  gpr_log_import = (gpr_log_type) GetProcAddress(library, "gpr_log");
-  gpr_log_message_import = (gpr_log_message_type) GetProcAddress(library, "gpr_log_message");
-  gpr_set_log_verbosity_import = (gpr_set_log_verbosity_type) GetProcAddress(library, "gpr_set_log_verbosity");
-  gpr_log_verbosity_init_import = (gpr_log_verbosity_init_type) GetProcAddress(library, "gpr_log_verbosity_init");
-  gpr_set_log_function_import = (gpr_set_log_function_type) GetProcAddress(library, "gpr_set_log_function");
-  gpr_slice_ref_import = (gpr_slice_ref_type) GetProcAddress(library, "gpr_slice_ref");
-  gpr_slice_unref_import = (gpr_slice_unref_type) GetProcAddress(library, "gpr_slice_unref");
-  gpr_slice_new_import = (gpr_slice_new_type) GetProcAddress(library, "gpr_slice_new");
-  gpr_slice_new_with_len_import = (gpr_slice_new_with_len_type) GetProcAddress(library, "gpr_slice_new_with_len");
-  gpr_slice_malloc_import = (gpr_slice_malloc_type) GetProcAddress(library, "gpr_slice_malloc");
-  gpr_slice_from_copied_string_import = (gpr_slice_from_copied_string_type) GetProcAddress(library, "gpr_slice_from_copied_string");
-  gpr_slice_from_copied_buffer_import = (gpr_slice_from_copied_buffer_type) GetProcAddress(library, "gpr_slice_from_copied_buffer");
-  gpr_slice_from_static_string_import = (gpr_slice_from_static_string_type) GetProcAddress(library, "gpr_slice_from_static_string");
-  gpr_slice_sub_import = (gpr_slice_sub_type) GetProcAddress(library, "gpr_slice_sub");
-  gpr_slice_sub_no_ref_import = (gpr_slice_sub_no_ref_type) GetProcAddress(library, "gpr_slice_sub_no_ref");
-  gpr_slice_split_tail_import = (gpr_slice_split_tail_type) GetProcAddress(library, "gpr_slice_split_tail");
-  gpr_slice_split_head_import = (gpr_slice_split_head_type) GetProcAddress(library, "gpr_slice_split_head");
-  gpr_empty_slice_import = (gpr_empty_slice_type) GetProcAddress(library, "gpr_empty_slice");
-  gpr_slice_cmp_import = (gpr_slice_cmp_type) GetProcAddress(library, "gpr_slice_cmp");
-  gpr_slice_str_cmp_import = (gpr_slice_str_cmp_type) GetProcAddress(library, "gpr_slice_str_cmp");
-  gpr_slice_buffer_init_import = (gpr_slice_buffer_init_type) GetProcAddress(library, "gpr_slice_buffer_init");
-  gpr_slice_buffer_destroy_import = (gpr_slice_buffer_destroy_type) GetProcAddress(library, "gpr_slice_buffer_destroy");
-  gpr_slice_buffer_add_import = (gpr_slice_buffer_add_type) GetProcAddress(library, "gpr_slice_buffer_add");
-  gpr_slice_buffer_add_indexed_import = (gpr_slice_buffer_add_indexed_type) GetProcAddress(library, "gpr_slice_buffer_add_indexed");
-  gpr_slice_buffer_addn_import = (gpr_slice_buffer_addn_type) GetProcAddress(library, "gpr_slice_buffer_addn");
-  gpr_slice_buffer_tiny_add_import = (gpr_slice_buffer_tiny_add_type) GetProcAddress(library, "gpr_slice_buffer_tiny_add");
-  gpr_slice_buffer_pop_import = (gpr_slice_buffer_pop_type) GetProcAddress(library, "gpr_slice_buffer_pop");
-  gpr_slice_buffer_reset_and_unref_import = (gpr_slice_buffer_reset_and_unref_type) GetProcAddress(library, "gpr_slice_buffer_reset_and_unref");
-  gpr_slice_buffer_swap_import = (gpr_slice_buffer_swap_type) GetProcAddress(library, "gpr_slice_buffer_swap");
-  gpr_slice_buffer_move_into_import = (gpr_slice_buffer_move_into_type) GetProcAddress(library, "gpr_slice_buffer_move_into");
-  gpr_slice_buffer_trim_end_import = (gpr_slice_buffer_trim_end_type) GetProcAddress(library, "gpr_slice_buffer_trim_end");
-  gpr_slice_buffer_move_first_import = (gpr_slice_buffer_move_first_type) GetProcAddress(library, "gpr_slice_buffer_move_first");
-  gpr_slice_buffer_take_first_import = (gpr_slice_buffer_take_first_type) GetProcAddress(library, "gpr_slice_buffer_take_first");
-  gpr_mu_init_import = (gpr_mu_init_type) GetProcAddress(library, "gpr_mu_init");
-  gpr_mu_destroy_import = (gpr_mu_destroy_type) GetProcAddress(library, "gpr_mu_destroy");
-  gpr_mu_lock_import = (gpr_mu_lock_type) GetProcAddress(library, "gpr_mu_lock");
-  gpr_mu_unlock_import = (gpr_mu_unlock_type) GetProcAddress(library, "gpr_mu_unlock");
-  gpr_mu_trylock_import = (gpr_mu_trylock_type) GetProcAddress(library, "gpr_mu_trylock");
-  gpr_cv_init_import = (gpr_cv_init_type) GetProcAddress(library, "gpr_cv_init");
-  gpr_cv_destroy_import = (gpr_cv_destroy_type) GetProcAddress(library, "gpr_cv_destroy");
-  gpr_cv_wait_import = (gpr_cv_wait_type) GetProcAddress(library, "gpr_cv_wait");
-  gpr_cv_signal_import = (gpr_cv_signal_type) GetProcAddress(library, "gpr_cv_signal");
-  gpr_cv_broadcast_import = (gpr_cv_broadcast_type) GetProcAddress(library, "gpr_cv_broadcast");
-  gpr_once_init_import = (gpr_once_init_type) GetProcAddress(library, "gpr_once_init");
-  gpr_event_init_import = (gpr_event_init_type) GetProcAddress(library, "gpr_event_init");
-  gpr_event_set_import = (gpr_event_set_type) GetProcAddress(library, "gpr_event_set");
-  gpr_event_get_import = (gpr_event_get_type) GetProcAddress(library, "gpr_event_get");
-  gpr_event_wait_import = (gpr_event_wait_type) GetProcAddress(library, "gpr_event_wait");
-  gpr_ref_init_import = (gpr_ref_init_type) GetProcAddress(library, "gpr_ref_init");
-  gpr_ref_import = (gpr_ref_type) GetProcAddress(library, "gpr_ref");
-  gpr_ref_non_zero_import = (gpr_ref_non_zero_type) GetProcAddress(library, "gpr_ref_non_zero");
-  gpr_refn_import = (gpr_refn_type) GetProcAddress(library, "gpr_refn");
-  gpr_unref_import = (gpr_unref_type) GetProcAddress(library, "gpr_unref");
-  gpr_stats_init_import = (gpr_stats_init_type) GetProcAddress(library, "gpr_stats_init");
-  gpr_stats_inc_import = (gpr_stats_inc_type) GetProcAddress(library, "gpr_stats_inc");
-  gpr_stats_read_import = (gpr_stats_read_type) GetProcAddress(library, "gpr_stats_read");
-  gpr_time_0_import = (gpr_time_0_type) GetProcAddress(library, "gpr_time_0");
-  gpr_inf_future_import = (gpr_inf_future_type) GetProcAddress(library, "gpr_inf_future");
-  gpr_inf_past_import = (gpr_inf_past_type) GetProcAddress(library, "gpr_inf_past");
-  gpr_time_init_import = (gpr_time_init_type) GetProcAddress(library, "gpr_time_init");
-  gpr_now_import = (gpr_now_type) GetProcAddress(library, "gpr_now");
-  gpr_convert_clock_type_import = (gpr_convert_clock_type_type) GetProcAddress(library, "gpr_convert_clock_type");
-  gpr_time_cmp_import = (gpr_time_cmp_type) GetProcAddress(library, "gpr_time_cmp");
-  gpr_time_max_import = (gpr_time_max_type) GetProcAddress(library, "gpr_time_max");
-  gpr_time_min_import = (gpr_time_min_type) GetProcAddress(library, "gpr_time_min");
-  gpr_time_add_import = (gpr_time_add_type) GetProcAddress(library, "gpr_time_add");
-  gpr_time_sub_import = (gpr_time_sub_type) GetProcAddress(library, "gpr_time_sub");
-  gpr_time_from_micros_import = (gpr_time_from_micros_type) GetProcAddress(library, "gpr_time_from_micros");
-  gpr_time_from_nanos_import = (gpr_time_from_nanos_type) GetProcAddress(library, "gpr_time_from_nanos");
-  gpr_time_from_millis_import = (gpr_time_from_millis_type) GetProcAddress(library, "gpr_time_from_millis");
-  gpr_time_from_seconds_import = (gpr_time_from_seconds_type) GetProcAddress(library, "gpr_time_from_seconds");
-  gpr_time_from_minutes_import = (gpr_time_from_minutes_type) GetProcAddress(library, "gpr_time_from_minutes");
-  gpr_time_from_hours_import = (gpr_time_from_hours_type) GetProcAddress(library, "gpr_time_from_hours");
-  gpr_time_to_millis_import = (gpr_time_to_millis_type) GetProcAddress(library, "gpr_time_to_millis");
-  gpr_time_similar_import = (gpr_time_similar_type) GetProcAddress(library, "gpr_time_similar");
-  gpr_sleep_until_import = (gpr_sleep_until_type) GetProcAddress(library, "gpr_sleep_until");
-  gpr_timespec_to_micros_import = (gpr_timespec_to_micros_type) GetProcAddress(library, "gpr_timespec_to_micros");
-  gpr_avl_create_import = (gpr_avl_create_type) GetProcAddress(library, "gpr_avl_create");
-  gpr_avl_ref_import = (gpr_avl_ref_type) GetProcAddress(library, "gpr_avl_ref");
-  gpr_avl_unref_import = (gpr_avl_unref_type) GetProcAddress(library, "gpr_avl_unref");
-  gpr_avl_add_import = (gpr_avl_add_type) GetProcAddress(library, "gpr_avl_add");
-  gpr_avl_remove_import = (gpr_avl_remove_type) GetProcAddress(library, "gpr_avl_remove");
-  gpr_avl_get_import = (gpr_avl_get_type) GetProcAddress(library, "gpr_avl_get");
-  gpr_avl_maybe_get_import = (gpr_avl_maybe_get_type) GetProcAddress(library, "gpr_avl_maybe_get");
-  gpr_avl_is_empty_import = (gpr_avl_is_empty_type) GetProcAddress(library, "gpr_avl_is_empty");
-  gpr_cmdline_create_import = (gpr_cmdline_create_type) GetProcAddress(library, "gpr_cmdline_create");
-  gpr_cmdline_add_int_import = (gpr_cmdline_add_int_type) GetProcAddress(library, "gpr_cmdline_add_int");
-  gpr_cmdline_add_flag_import = (gpr_cmdline_add_flag_type) GetProcAddress(library, "gpr_cmdline_add_flag");
-  gpr_cmdline_add_string_import = (gpr_cmdline_add_string_type) GetProcAddress(library, "gpr_cmdline_add_string");
-  gpr_cmdline_on_extra_arg_import = (gpr_cmdline_on_extra_arg_type) GetProcAddress(library, "gpr_cmdline_on_extra_arg");
-  gpr_cmdline_set_survive_failure_import = (gpr_cmdline_set_survive_failure_type) GetProcAddress(library, "gpr_cmdline_set_survive_failure");
-  gpr_cmdline_parse_import = (gpr_cmdline_parse_type) GetProcAddress(library, "gpr_cmdline_parse");
-  gpr_cmdline_destroy_import = (gpr_cmdline_destroy_type) GetProcAddress(library, "gpr_cmdline_destroy");
-  gpr_cmdline_usage_string_import = (gpr_cmdline_usage_string_type) GetProcAddress(library, "gpr_cmdline_usage_string");
-  gpr_cpu_num_cores_import = (gpr_cpu_num_cores_type) GetProcAddress(library, "gpr_cpu_num_cores");
-  gpr_cpu_current_cpu_import = (gpr_cpu_current_cpu_type) GetProcAddress(library, "gpr_cpu_current_cpu");
-  gpr_histogram_create_import = (gpr_histogram_create_type) GetProcAddress(library, "gpr_histogram_create");
-  gpr_histogram_destroy_import = (gpr_histogram_destroy_type) GetProcAddress(library, "gpr_histogram_destroy");
-  gpr_histogram_add_import = (gpr_histogram_add_type) GetProcAddress(library, "gpr_histogram_add");
-  gpr_histogram_merge_import = (gpr_histogram_merge_type) GetProcAddress(library, "gpr_histogram_merge");
-  gpr_histogram_percentile_import = (gpr_histogram_percentile_type) GetProcAddress(library, "gpr_histogram_percentile");
-  gpr_histogram_mean_import = (gpr_histogram_mean_type) GetProcAddress(library, "gpr_histogram_mean");
-  gpr_histogram_stddev_import = (gpr_histogram_stddev_type) GetProcAddress(library, "gpr_histogram_stddev");
-  gpr_histogram_variance_import = (gpr_histogram_variance_type) GetProcAddress(library, "gpr_histogram_variance");
-  gpr_histogram_maximum_import = (gpr_histogram_maximum_type) GetProcAddress(library, "gpr_histogram_maximum");
-  gpr_histogram_minimum_import = (gpr_histogram_minimum_type) GetProcAddress(library, "gpr_histogram_minimum");
-  gpr_histogram_count_import = (gpr_histogram_count_type) GetProcAddress(library, "gpr_histogram_count");
-  gpr_histogram_sum_import = (gpr_histogram_sum_type) GetProcAddress(library, "gpr_histogram_sum");
-  gpr_histogram_sum_of_squares_import = (gpr_histogram_sum_of_squares_type) GetProcAddress(library, "gpr_histogram_sum_of_squares");
-  gpr_histogram_get_contents_import = (gpr_histogram_get_contents_type) GetProcAddress(library, "gpr_histogram_get_contents");
-  gpr_histogram_merge_contents_import = (gpr_histogram_merge_contents_type) GetProcAddress(library, "gpr_histogram_merge_contents");
-  gpr_join_host_port_import = (gpr_join_host_port_type) GetProcAddress(library, "gpr_join_host_port");
-  gpr_split_host_port_import = (gpr_split_host_port_type) GetProcAddress(library, "gpr_split_host_port");
-  gpr_format_message_import = (gpr_format_message_type) GetProcAddress(library, "gpr_format_message");
-  gpr_strdup_import = (gpr_strdup_type) GetProcAddress(library, "gpr_strdup");
-  gpr_asprintf_import = (gpr_asprintf_type) GetProcAddress(library, "gpr_asprintf");
-  gpr_subprocess_binary_extension_import = (gpr_subprocess_binary_extension_type) GetProcAddress(library, "gpr_subprocess_binary_extension");
-  gpr_subprocess_create_import = (gpr_subprocess_create_type) GetProcAddress(library, "gpr_subprocess_create");
-  gpr_subprocess_destroy_import = (gpr_subprocess_destroy_type) GetProcAddress(library, "gpr_subprocess_destroy");
-  gpr_subprocess_join_import = (gpr_subprocess_join_type) GetProcAddress(library, "gpr_subprocess_join");
-  gpr_subprocess_interrupt_import = (gpr_subprocess_interrupt_type) GetProcAddress(library, "gpr_subprocess_interrupt");
-  gpr_thd_new_import = (gpr_thd_new_type) GetProcAddress(library, "gpr_thd_new");
-  gpr_thd_options_default_import = (gpr_thd_options_default_type) GetProcAddress(library, "gpr_thd_options_default");
-  gpr_thd_options_set_detached_import = (gpr_thd_options_set_detached_type) GetProcAddress(library, "gpr_thd_options_set_detached");
-  gpr_thd_options_set_joinable_import = (gpr_thd_options_set_joinable_type) GetProcAddress(library, "gpr_thd_options_set_joinable");
-  gpr_thd_options_is_detached_import = (gpr_thd_options_is_detached_type) GetProcAddress(library, "gpr_thd_options_is_detached");
-  gpr_thd_options_is_joinable_import = (gpr_thd_options_is_joinable_type) GetProcAddress(library, "gpr_thd_options_is_joinable");
-  gpr_thd_currentid_import = (gpr_thd_currentid_type) GetProcAddress(library, "gpr_thd_currentid");
-  gpr_thd_join_import = (gpr_thd_join_type) GetProcAddress(library, "gpr_thd_join");
-}
-
-#ifdef __cplusplus
-}
-#endif  /* __cpluslus */
-
-#endif /* !GPR_WINDOWS */

src/python/grpcio/grpc/_cython/imports.generated.h

@@ -31,860 +31,12 @@
  *
  */
 
+/* TODO(atash) remove cruft */
 #ifndef PYGRPC_CYTHON_WINDOWS_IMPORTS_H_
 #define PYGRPC_CYTHON_WINDOWS_IMPORTS_H_
 
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_WINDOWS
-
-#include <windows.h>
-
-#include <grpc/census.h>
-#include <grpc/compression.h>
-#include <grpc/grpc.h>
-#include <grpc/grpc_posix.h>
-#include <grpc/grpc_security.h>
-#include <grpc/impl/codegen/alloc.h>
-#include <grpc/impl/codegen/byte_buffer.h>
-#include <grpc/impl/codegen/log.h>
-#include <grpc/impl/codegen/slice.h>
-#include <grpc/impl/codegen/slice_buffer.h>
-#include <grpc/impl/codegen/sync.h>
-#include <grpc/impl/codegen/time.h>
-#include <grpc/support/avl.h>
-#include <grpc/support/cmdline.h>
-#include <grpc/support/cpu.h>
-#include <grpc/support/histogram.h>
-#include <grpc/support/host_port.h>
-#include <grpc/support/log_windows.h>
-#include <grpc/support/string_util.h>
-#include <grpc/support/subprocess.h>
-#include <grpc/support/thd.h>
-
-typedef int(*census_initialize_type)(int features);
-extern census_initialize_type census_initialize_import;
-#define census_initialize census_initialize_import
-typedef void(*census_shutdown_type)(void);
-extern census_shutdown_type census_shutdown_import;
-#define census_shutdown census_shutdown_import
-typedef int(*census_supported_type)(void);
-extern census_supported_type census_supported_import;
-#define census_supported census_supported_import
-typedef int(*census_enabled_type)(void);
-extern census_enabled_type census_enabled_import;
-#define census_enabled census_enabled_import
-typedef census_context *(*census_context_create_type)(const census_context *base, const census_tag *tags, int ntags, census_context_status const **status);
-extern census_context_create_type census_context_create_import;
-#define census_context_create census_context_create_import
-typedef void(*census_context_destroy_type)(census_context *context);
-extern census_context_destroy_type census_context_destroy_import;
-#define census_context_destroy census_context_destroy_import
-typedef const census_context_status *(*census_context_get_status_type)(const census_context *context);
-extern census_context_get_status_type census_context_get_status_import;
-#define census_context_get_status census_context_get_status_import
-typedef void(*census_context_initialize_iterator_type)(const census_context *context, census_context_iterator *iterator);
-extern census_context_initialize_iterator_type census_context_initialize_iterator_import;
-#define census_context_initialize_iterator census_context_initialize_iterator_import
-typedef int(*census_context_next_tag_type)(census_context_iterator *iterator, census_tag *tag);
-extern census_context_next_tag_type census_context_next_tag_import;
-#define census_context_next_tag census_context_next_tag_import
-typedef int(*census_context_get_tag_type)(const census_context *context, const char *key, census_tag *tag);
-extern census_context_get_tag_type census_context_get_tag_import;
-#define census_context_get_tag census_context_get_tag_import
-typedef size_t(*census_context_encode_type)(const census_context *context, char *buffer, size_t buf_size);
-extern census_context_encode_type census_context_encode_import;
-#define census_context_encode census_context_encode_import
-typedef census_context *(*census_context_decode_type)(const char *buffer, size_t size);
-extern census_context_decode_type census_context_decode_import;
-#define census_context_decode census_context_decode_import
-typedef int(*census_trace_mask_type)(const census_context *context);
-extern census_trace_mask_type census_trace_mask_import;
-#define census_trace_mask census_trace_mask_import
-typedef void(*census_set_trace_mask_type)(int trace_mask);
-extern census_set_trace_mask_type census_set_trace_mask_import;
-#define census_set_trace_mask census_set_trace_mask_import
-typedef census_timestamp(*census_start_rpc_op_timestamp_type)(void);
-extern census_start_rpc_op_timestamp_type census_start_rpc_op_timestamp_import;
-#define census_start_rpc_op_timestamp census_start_rpc_op_timestamp_import
-typedef census_context *(*census_start_client_rpc_op_type)(const census_context *context, int64_t rpc_name_id, const census_rpc_name_info *rpc_name_info, const char *peer, int trace_mask, const census_timestamp *start_time);
-extern census_start_client_rpc_op_type census_start_client_rpc_op_import;
-#define census_start_client_rpc_op census_start_client_rpc_op_import
-typedef void(*census_set_rpc_client_peer_type)(census_context *context, const char *peer);
-extern census_set_rpc_client_peer_type census_set_rpc_client_peer_import;
-#define census_set_rpc_client_peer census_set_rpc_client_peer_import
-typedef census_context *(*census_start_server_rpc_op_type)(const char *buffer, int64_t rpc_name_id, const census_rpc_name_info *rpc_name_info, const char *peer, int trace_mask, census_timestamp *start_time);
-extern census_start_server_rpc_op_type census_start_server_rpc_op_import;
-#define census_start_server_rpc_op census_start_server_rpc_op_import
-typedef census_context *(*census_start_op_type)(census_context *context, const char *family, const char *name, int trace_mask);
-extern census_start_op_type census_start_op_import;
-#define census_start_op census_start_op_import
-typedef void(*census_end_op_type)(census_context *context, int status);
-extern census_end_op_type census_end_op_import;
-#define census_end_op census_end_op_import
-typedef void(*census_trace_print_type)(census_context *context, uint32_t type, const char *buffer, size_t n);
-extern census_trace_print_type census_trace_print_import;
-#define census_trace_print census_trace_print_import
-typedef int(*census_trace_scan_start_type)(int consume);
-extern census_trace_scan_start_type census_trace_scan_start_import;
-#define census_trace_scan_start census_trace_scan_start_import
-typedef int(*census_get_trace_record_type)(census_trace_record *trace_record);
-extern census_get_trace_record_type census_get_trace_record_import;
-#define census_get_trace_record census_get_trace_record_import
-typedef void(*census_trace_scan_end_type)();
-extern census_trace_scan_end_type census_trace_scan_end_import;
-#define census_trace_scan_end census_trace_scan_end_import
-typedef void(*census_record_values_type)(census_context *context, census_value *values, size_t nvalues);
-extern census_record_values_type census_record_values_import;
-#define census_record_values census_record_values_import
-typedef census_view *(*census_view_create_type)(uint32_t metric_id, const census_context *tags, const census_aggregation *aggregations, size_t naggregations);
-extern census_view_create_type census_view_create_import;
-#define census_view_create census_view_create_import
-typedef void(*census_view_delete_type)(census_view *view);
-extern census_view_delete_type census_view_delete_import;
-#define census_view_delete census_view_delete_import
-typedef size_t(*census_view_metric_type)(const census_view *view);
-extern census_view_metric_type census_view_metric_import;
-#define census_view_metric census_view_metric_import
-typedef size_t(*census_view_naggregations_type)(const census_view *view);
-extern census_view_naggregations_type census_view_naggregations_import;
-#define census_view_naggregations census_view_naggregations_import
-typedef const census_context *(*census_view_tags_type)(const census_view *view);
-extern census_view_tags_type census_view_tags_import;
-#define census_view_tags census_view_tags_import
-typedef const census_aggregation *(*census_view_aggregrations_type)(const census_view *view);
-extern census_view_aggregrations_type census_view_aggregrations_import;
-#define census_view_aggregrations census_view_aggregrations_import
-typedef const census_view_data *(*census_view_get_data_type)(const census_view *view);
-extern census_view_get_data_type census_view_get_data_import;
-#define census_view_get_data census_view_get_data_import
-typedef void(*census_view_reset_type)(census_view *view);
-extern census_view_reset_type census_view_reset_import;
-#define census_view_reset census_view_reset_import
-typedef int(*grpc_compression_algorithm_parse_type)(const char *name, size_t name_length, grpc_compression_algorithm *algorithm);
-extern grpc_compression_algorithm_parse_type grpc_compression_algorithm_parse_import;
-#define grpc_compression_algorithm_parse grpc_compression_algorithm_parse_import
-typedef int(*grpc_compression_algorithm_name_type)(grpc_compression_algorithm algorithm, char **name);
-extern grpc_compression_algorithm_name_type grpc_compression_algorithm_name_import;
-#define grpc_compression_algorithm_name grpc_compression_algorithm_name_import
-typedef grpc_compression_algorithm(*grpc_compression_algorithm_for_level_type)(grpc_compression_level level, uint32_t accepted_encodings);
-extern grpc_compression_algorithm_for_level_type grpc_compression_algorithm_for_level_import;
-#define grpc_compression_algorithm_for_level grpc_compression_algorithm_for_level_import
-typedef void(*grpc_compression_options_init_type)(grpc_compression_options *opts);
-extern grpc_compression_options_init_type grpc_compression_options_init_import;
-#define grpc_compression_options_init grpc_compression_options_init_import
-typedef void(*grpc_compression_options_enable_algorithm_type)(grpc_compression_options *opts, grpc_compression_algorithm algorithm);
-extern grpc_compression_options_enable_algorithm_type grpc_compression_options_enable_algorithm_import;
-#define grpc_compression_options_enable_algorithm grpc_compression_options_enable_algorithm_import
-typedef void(*grpc_compression_options_disable_algorithm_type)(grpc_compression_options *opts, grpc_compression_algorithm algorithm);
-extern grpc_compression_options_disable_algorithm_type grpc_compression_options_disable_algorithm_import;
-#define grpc_compression_options_disable_algorithm grpc_compression_options_disable_algorithm_import
-typedef int(*grpc_compression_options_is_algorithm_enabled_type)(const grpc_compression_options *opts, grpc_compression_algorithm algorithm);
-extern grpc_compression_options_is_algorithm_enabled_type grpc_compression_options_is_algorithm_enabled_import;
-#define grpc_compression_options_is_algorithm_enabled grpc_compression_options_is_algorithm_enabled_import
-typedef void(*grpc_metadata_array_init_type)(grpc_metadata_array *array);
-extern grpc_metadata_array_init_type grpc_metadata_array_init_import;
-#define grpc_metadata_array_init grpc_metadata_array_init_import
-typedef void(*grpc_metadata_array_destroy_type)(grpc_metadata_array *array);
-extern grpc_metadata_array_destroy_type grpc_metadata_array_destroy_import;
-#define grpc_metadata_array_destroy grpc_metadata_array_destroy_import
-typedef void(*grpc_call_details_init_type)(grpc_call_details *details);
-extern grpc_call_details_init_type grpc_call_details_init_import;
-#define grpc_call_details_init grpc_call_details_init_import
-typedef void(*grpc_call_details_destroy_type)(grpc_call_details *details);
-extern grpc_call_details_destroy_type grpc_call_details_destroy_import;
-#define grpc_call_details_destroy grpc_call_details_destroy_import
-typedef void(*grpc_register_plugin_type)(void (*init)(void), void (*destroy)(void));
-extern grpc_register_plugin_type grpc_register_plugin_import;
-#define grpc_register_plugin grpc_register_plugin_import
-typedef void(*grpc_init_type)(void);
-extern grpc_init_type grpc_init_import;
-#define grpc_init grpc_init_import
-typedef void(*grpc_shutdown_type)(void);
-extern grpc_shutdown_type grpc_shutdown_import;
-#define grpc_shutdown grpc_shutdown_import
-typedef const char *(*grpc_version_string_type)(void);
-extern grpc_version_string_type grpc_version_string_import;
-#define grpc_version_string grpc_version_string_import
-typedef grpc_completion_queue *(*grpc_completion_queue_create_type)(void *reserved);
-extern grpc_completion_queue_create_type grpc_completion_queue_create_import;
-#define grpc_completion_queue_create grpc_completion_queue_create_import
-typedef grpc_event(*grpc_completion_queue_next_type)(grpc_completion_queue *cq, gpr_timespec deadline, void *reserved);
-extern grpc_completion_queue_next_type grpc_completion_queue_next_import;
-#define grpc_completion_queue_next grpc_completion_queue_next_import
-typedef grpc_event(*grpc_completion_queue_pluck_type)(grpc_completion_queue *cq, void *tag, gpr_timespec deadline, void *reserved);
-extern grpc_completion_queue_pluck_type grpc_completion_queue_pluck_import;
-#define grpc_completion_queue_pluck grpc_completion_queue_pluck_import
-typedef void(*grpc_completion_queue_shutdown_type)(grpc_completion_queue *cq);
-extern grpc_completion_queue_shutdown_type grpc_completion_queue_shutdown_import;
-#define grpc_completion_queue_shutdown grpc_completion_queue_shutdown_import
-typedef void(*grpc_completion_queue_destroy_type)(grpc_completion_queue *cq);
-extern grpc_completion_queue_destroy_type grpc_completion_queue_destroy_import;
-#define grpc_completion_queue_destroy grpc_completion_queue_destroy_import
-typedef grpc_alarm *(*grpc_alarm_create_type)(grpc_completion_queue *cq, gpr_timespec deadline, void *tag);
-extern grpc_alarm_create_type grpc_alarm_create_import;
-#define grpc_alarm_create grpc_alarm_create_import
-typedef void(*grpc_alarm_cancel_type)(grpc_alarm *alarm);
-extern grpc_alarm_cancel_type grpc_alarm_cancel_import;
-#define grpc_alarm_cancel grpc_alarm_cancel_import
-typedef void(*grpc_alarm_destroy_type)(grpc_alarm *alarm);
-extern grpc_alarm_destroy_type grpc_alarm_destroy_import;
-#define grpc_alarm_destroy grpc_alarm_destroy_import
-typedef grpc_connectivity_state(*grpc_channel_check_connectivity_state_type)(grpc_channel *channel, int try_to_connect);
-extern grpc_channel_check_connectivity_state_type grpc_channel_check_connectivity_state_import;
-#define grpc_channel_check_connectivity_state grpc_channel_check_connectivity_state_import
-typedef void(*grpc_channel_watch_connectivity_state_type)(grpc_channel *channel, grpc_connectivity_state last_observed_state, gpr_timespec deadline, grpc_completion_queue *cq, void *tag);
-extern grpc_channel_watch_connectivity_state_type grpc_channel_watch_connectivity_state_import;
-#define grpc_channel_watch_connectivity_state grpc_channel_watch_connectivity_state_import
-typedef grpc_call *(*grpc_channel_create_call_type)(grpc_channel *channel, grpc_call *parent_call, uint32_t propagation_mask, grpc_completion_queue *completion_queue, const char *method, const char *host, gpr_timespec deadline, void *reserved);
-extern grpc_channel_create_call_type grpc_channel_create_call_import;
-#define grpc_channel_create_call grpc_channel_create_call_import
-typedef void(*grpc_channel_ping_type)(grpc_channel *channel, grpc_completion_queue *cq, void *tag, void *reserved);
-extern grpc_channel_ping_type grpc_channel_ping_import;
-#define grpc_channel_ping grpc_channel_ping_import
-typedef void *(*grpc_channel_register_call_type)(grpc_channel *channel, const char *method, const char *host, void *reserved);
-extern grpc_channel_register_call_type grpc_channel_register_call_import;
-#define grpc_channel_register_call grpc_channel_register_call_import
-typedef grpc_call *(*grpc_channel_create_registered_call_type)(grpc_channel *channel, grpc_call *parent_call, uint32_t propagation_mask, grpc_completion_queue *completion_queue, void *registered_call_handle, gpr_timespec deadline, void *reserved);
-extern grpc_channel_create_registered_call_type grpc_channel_create_registered_call_import;
-#define grpc_channel_create_registered_call grpc_channel_create_registered_call_import
-typedef grpc_call_error(*grpc_call_start_batch_type)(grpc_call *call, const grpc_op *ops, size_t nops, void *tag, void *reserved);
-extern grpc_call_start_batch_type grpc_call_start_batch_import;
-#define grpc_call_start_batch grpc_call_start_batch_import
-typedef char *(*grpc_call_get_peer_type)(grpc_call *call);
-extern grpc_call_get_peer_type grpc_call_get_peer_import;
-#define grpc_call_get_peer grpc_call_get_peer_import
-typedef void(*grpc_census_call_set_context_type)(grpc_call *call, struct census_context *context);
-extern grpc_census_call_set_context_type grpc_census_call_set_context_import;
-#define grpc_census_call_set_context grpc_census_call_set_context_import
-typedef struct census_context *(*grpc_census_call_get_context_type)(grpc_call *call);
-extern grpc_census_call_get_context_type grpc_census_call_get_context_import;
-#define grpc_census_call_get_context grpc_census_call_get_context_import
-typedef char *(*grpc_channel_get_target_type)(grpc_channel *channel);
-extern grpc_channel_get_target_type grpc_channel_get_target_import;
-#define grpc_channel_get_target grpc_channel_get_target_import
-typedef grpc_channel *(*grpc_insecure_channel_create_type)(const char *target, const grpc_channel_args *args, void *reserved);
-extern grpc_insecure_channel_create_type grpc_insecure_channel_create_import;
-#define grpc_insecure_channel_create grpc_insecure_channel_create_import
-typedef grpc_channel *(*grpc_lame_client_channel_create_type)(const char *target, grpc_status_code error_code, const char *error_message);
-extern grpc_lame_client_channel_create_type grpc_lame_client_channel_create_import;
-#define grpc_lame_client_channel_create grpc_lame_client_channel_create_import
-typedef void(*grpc_channel_destroy_type)(grpc_channel *channel);
-extern grpc_channel_destroy_type grpc_channel_destroy_import;
-#define grpc_channel_destroy grpc_channel_destroy_import
-typedef grpc_call_error(*grpc_call_cancel_type)(grpc_call *call, void *reserved);
-extern grpc_call_cancel_type grpc_call_cancel_import;
-#define grpc_call_cancel grpc_call_cancel_import
-typedef grpc_call_error(*grpc_call_cancel_with_status_type)(grpc_call *call, grpc_status_code status, const char *description, void *reserved);
-extern grpc_call_cancel_with_status_type grpc_call_cancel_with_status_import;
-#define grpc_call_cancel_with_status grpc_call_cancel_with_status_import
-typedef void(*grpc_call_destroy_type)(grpc_call *call);
-extern grpc_call_destroy_type grpc_call_destroy_import;
-#define grpc_call_destroy grpc_call_destroy_import
-typedef grpc_call_error(*grpc_server_request_call_type)(grpc_server *server, grpc_call **call, grpc_call_details *details, grpc_metadata_array *request_metadata, grpc_completion_queue *cq_bound_to_call, grpc_completion_queue *cq_for_notification, void *tag_new);
-extern grpc_server_request_call_type grpc_server_request_call_import;
-#define grpc_server_request_call grpc_server_request_call_import
-typedef void *(*grpc_server_register_method_type)(grpc_server *server, const char *method, const char *host, grpc_server_register_method_payload_handling payload_handling, uint32_t flags);
-extern grpc_server_register_method_type grpc_server_register_method_import;
-#define grpc_server_register_method grpc_server_register_method_import
-typedef grpc_call_error(*grpc_server_request_registered_call_type)(grpc_server *server, void *registered_method, grpc_call **call, gpr_timespec *deadline, grpc_metadata_array *request_metadata, grpc_byte_buffer **optional_payload, grpc_completion_queue *cq_bound_to_call, grpc_completion_queue *cq_for_notification, void *tag_new);
-extern grpc_server_request_registered_call_type grpc_server_request_registered_call_import;
-#define grpc_server_request_registered_call grpc_server_request_registered_call_import
-typedef grpc_server *(*grpc_server_create_type)(const grpc_channel_args *args, void *reserved);
-extern grpc_server_create_type grpc_server_create_import;
-#define grpc_server_create grpc_server_create_import
-typedef void(*grpc_server_register_completion_queue_type)(grpc_server *server, grpc_completion_queue *cq, void *reserved);
-extern grpc_server_register_completion_queue_type grpc_server_register_completion_queue_import;
-#define grpc_server_register_completion_queue grpc_server_register_completion_queue_import
-typedef void(*grpc_server_register_non_listening_completion_queue_type)(grpc_server *server, grpc_completion_queue *q, void *reserved);
-extern grpc_server_register_non_listening_completion_queue_type grpc_server_register_non_listening_completion_queue_import;
-#define grpc_server_register_non_listening_completion_queue grpc_server_register_non_listening_completion_queue_import
-typedef int(*grpc_server_add_insecure_http2_port_type)(grpc_server *server, const char *addr);
-extern grpc_server_add_insecure_http2_port_type grpc_server_add_insecure_http2_port_import;
-#define grpc_server_add_insecure_http2_port grpc_server_add_insecure_http2_port_import
-typedef void(*grpc_server_start_type)(grpc_server *server);
-extern grpc_server_start_type grpc_server_start_import;
-#define grpc_server_start grpc_server_start_import
-typedef void(*grpc_server_shutdown_and_notify_type)(grpc_server *server, grpc_completion_queue *cq, void *tag);
-extern grpc_server_shutdown_and_notify_type grpc_server_shutdown_and_notify_import;
-#define grpc_server_shutdown_and_notify grpc_server_shutdown_and_notify_import
-typedef void(*grpc_server_cancel_all_calls_type)(grpc_server *server);
-extern grpc_server_cancel_all_calls_type grpc_server_cancel_all_calls_import;
-#define grpc_server_cancel_all_calls grpc_server_cancel_all_calls_import
-typedef void(*grpc_server_destroy_type)(grpc_server *server);
-extern grpc_server_destroy_type grpc_server_destroy_import;
-#define grpc_server_destroy grpc_server_destroy_import
-typedef int(*grpc_tracer_set_enabled_type)(const char *name, int enabled);
-extern grpc_tracer_set_enabled_type grpc_tracer_set_enabled_import;
-#define grpc_tracer_set_enabled grpc_tracer_set_enabled_import
-typedef int(*grpc_header_key_is_legal_type)(const char *key, size_t length);
-extern grpc_header_key_is_legal_type grpc_header_key_is_legal_import;
-#define grpc_header_key_is_legal grpc_header_key_is_legal_import
-typedef int(*grpc_header_nonbin_value_is_legal_type)(const char *value, size_t length);
-extern grpc_header_nonbin_value_is_legal_type grpc_header_nonbin_value_is_legal_import;
-#define grpc_header_nonbin_value_is_legal grpc_header_nonbin_value_is_legal_import
-typedef int(*grpc_is_binary_header_type)(const char *key, size_t length);
-extern grpc_is_binary_header_type grpc_is_binary_header_import;
-#define grpc_is_binary_header grpc_is_binary_header_import
-typedef const char *(*grpc_call_error_to_string_type)(grpc_call_error error);
-extern grpc_call_error_to_string_type grpc_call_error_to_string_import;
-#define grpc_call_error_to_string grpc_call_error_to_string_import
-typedef grpc_channel *(*grpc_insecure_channel_create_from_fd_type)(const char *target, int fd, const grpc_channel_args *args);
-extern grpc_insecure_channel_create_from_fd_type grpc_insecure_channel_create_from_fd_import;
-#define grpc_insecure_channel_create_from_fd grpc_insecure_channel_create_from_fd_import
-typedef void(*grpc_server_add_insecure_channel_from_fd_type)(grpc_server *server, grpc_completion_queue *cq, int fd);
-extern grpc_server_add_insecure_channel_from_fd_type grpc_server_add_insecure_channel_from_fd_import;
-#define grpc_server_add_insecure_channel_from_fd grpc_server_add_insecure_channel_from_fd_import
-typedef void(*grpc_use_signal_type)(int signum);
-extern grpc_use_signal_type grpc_use_signal_import;
-#define grpc_use_signal grpc_use_signal_import
-typedef const grpc_auth_property *(*grpc_auth_property_iterator_next_type)(grpc_auth_property_iterator *it);
-extern grpc_auth_property_iterator_next_type grpc_auth_property_iterator_next_import;
-#define grpc_auth_property_iterator_next grpc_auth_property_iterator_next_import
-typedef grpc_auth_property_iterator(*grpc_auth_context_property_iterator_type)(const grpc_auth_context *ctx);
-extern grpc_auth_context_property_iterator_type grpc_auth_context_property_iterator_import;
-#define grpc_auth_context_property_iterator grpc_auth_context_property_iterator_import
-typedef grpc_auth_property_iterator(*grpc_auth_context_peer_identity_type)(const grpc_auth_context *ctx);
-extern grpc_auth_context_peer_identity_type grpc_auth_context_peer_identity_import;
-#define grpc_auth_context_peer_identity grpc_auth_context_peer_identity_import
-typedef grpc_auth_property_iterator(*grpc_auth_context_find_properties_by_name_type)(const grpc_auth_context *ctx, const char *name);
-extern grpc_auth_context_find_properties_by_name_type grpc_auth_context_find_properties_by_name_import;
-#define grpc_auth_context_find_properties_by_name grpc_auth_context_find_properties_by_name_import
-typedef const char *(*grpc_auth_context_peer_identity_property_name_type)(const grpc_auth_context *ctx);
-extern grpc_auth_context_peer_identity_property_name_type grpc_auth_context_peer_identity_property_name_import;
-#define grpc_auth_context_peer_identity_property_name grpc_auth_context_peer_identity_property_name_import
-typedef int(*grpc_auth_context_peer_is_authenticated_type)(const grpc_auth_context *ctx);
-extern grpc_auth_context_peer_is_authenticated_type grpc_auth_context_peer_is_authenticated_import;
-#define grpc_auth_context_peer_is_authenticated grpc_auth_context_peer_is_authenticated_import
-typedef grpc_auth_context *(*grpc_call_auth_context_type)(grpc_call *call);
-extern grpc_call_auth_context_type grpc_call_auth_context_import;
-#define grpc_call_auth_context grpc_call_auth_context_import
-typedef void(*grpc_auth_context_release_type)(grpc_auth_context *context);
-extern grpc_auth_context_release_type grpc_auth_context_release_import;
-#define grpc_auth_context_release grpc_auth_context_release_import
-typedef void(*grpc_auth_context_add_property_type)(grpc_auth_context *ctx, const char *name, const char *value, size_t value_length);
-extern grpc_auth_context_add_property_type grpc_auth_context_add_property_import;
-#define grpc_auth_context_add_property grpc_auth_context_add_property_import
-typedef void(*grpc_auth_context_add_cstring_property_type)(grpc_auth_context *ctx, const char *name, const char *value);
-extern grpc_auth_context_add_cstring_property_type grpc_auth_context_add_cstring_property_import;
-#define grpc_auth_context_add_cstring_property grpc_auth_context_add_cstring_property_import
-typedef int(*grpc_auth_context_set_peer_identity_property_name_type)(grpc_auth_context *ctx, const char *name);
-extern grpc_auth_context_set_peer_identity_property_name_type grpc_auth_context_set_peer_identity_property_name_import;
-#define grpc_auth_context_set_peer_identity_property_name grpc_auth_context_set_peer_identity_property_name_import
-typedef void(*grpc_channel_credentials_release_type)(grpc_channel_credentials *creds);
-extern grpc_channel_credentials_release_type grpc_channel_credentials_release_import;
-#define grpc_channel_credentials_release grpc_channel_credentials_release_import
-typedef grpc_channel_credentials *(*grpc_google_default_credentials_create_type)(void);
-extern grpc_google_default_credentials_create_type grpc_google_default_credentials_create_import;
-#define grpc_google_default_credentials_create grpc_google_default_credentials_create_import
-typedef void(*grpc_set_ssl_roots_override_callback_type)(grpc_ssl_roots_override_callback cb);
-extern grpc_set_ssl_roots_override_callback_type grpc_set_ssl_roots_override_callback_import;
-#define grpc_set_ssl_roots_override_callback grpc_set_ssl_roots_override_callback_import
-typedef grpc_channel_credentials *(*grpc_ssl_credentials_create_type)(const char *pem_root_certs, grpc_ssl_pem_key_cert_pair *pem_key_cert_pair, void *reserved);
-extern grpc_ssl_credentials_create_type grpc_ssl_credentials_create_import;
-#define grpc_ssl_credentials_create grpc_ssl_credentials_create_import
-typedef void(*grpc_call_credentials_release_type)(grpc_call_credentials *creds);
-extern grpc_call_credentials_release_type grpc_call_credentials_release_import;
-#define grpc_call_credentials_release grpc_call_credentials_release_import
-typedef grpc_channel_credentials *(*grpc_composite_channel_credentials_create_type)(grpc_channel_credentials *channel_creds, grpc_call_credentials *call_creds, void *reserved);
-extern grpc_composite_channel_credentials_create_type grpc_composite_channel_credentials_create_import;
-#define grpc_composite_channel_credentials_create grpc_composite_channel_credentials_create_import
-typedef grpc_call_credentials *(*grpc_composite_call_credentials_create_type)(grpc_call_credentials *creds1, grpc_call_credentials *creds2, void *reserved);
-extern grpc_composite_call_credentials_create_type grpc_composite_call_credentials_create_import;
-#define grpc_composite_call_credentials_create grpc_composite_call_credentials_create_import
-typedef grpc_call_credentials *(*grpc_google_compute_engine_credentials_create_type)(void *reserved);
-extern grpc_google_compute_engine_credentials_create_type grpc_google_compute_engine_credentials_create_import;
-#define grpc_google_compute_engine_credentials_create grpc_google_compute_engine_credentials_create_import
-typedef gpr_timespec(*grpc_max_auth_token_lifetime_type)();
-extern grpc_max_auth_token_lifetime_type grpc_max_auth_token_lifetime_import;
-#define grpc_max_auth_token_lifetime grpc_max_auth_token_lifetime_import
-typedef grpc_call_credentials *(*grpc_service_account_jwt_access_credentials_create_type)(const char *json_key, gpr_timespec token_lifetime, void *reserved);
-extern grpc_service_account_jwt_access_credentials_create_type grpc_service_account_jwt_access_credentials_create_import;
-#define grpc_service_account_jwt_access_credentials_create grpc_service_account_jwt_access_credentials_create_import
-typedef grpc_call_credentials *(*grpc_google_refresh_token_credentials_create_type)(const char *json_refresh_token, void *reserved);
-extern grpc_google_refresh_token_credentials_create_type grpc_google_refresh_token_credentials_create_import;
-#define grpc_google_refresh_token_credentials_create grpc_google_refresh_token_credentials_create_import
-typedef grpc_call_credentials *(*grpc_access_token_credentials_create_type)(const char *access_token, void *reserved);
-extern grpc_access_token_credentials_create_type grpc_access_token_credentials_create_import;
-#define grpc_access_token_credentials_create grpc_access_token_credentials_create_import
-typedef grpc_call_credentials *(*grpc_google_iam_credentials_create_type)(const char *authorization_token, const char *authority_selector, void *reserved);
-extern grpc_google_iam_credentials_create_type grpc_google_iam_credentials_create_import;
-#define grpc_google_iam_credentials_create grpc_google_iam_credentials_create_import
-typedef grpc_call_credentials *(*grpc_metadata_credentials_create_from_plugin_type)(grpc_metadata_credentials_plugin plugin, void *reserved);
-extern grpc_metadata_credentials_create_from_plugin_type grpc_metadata_credentials_create_from_plugin_import;
-#define grpc_metadata_credentials_create_from_plugin grpc_metadata_credentials_create_from_plugin_import
-typedef grpc_channel *(*grpc_secure_channel_create_type)(grpc_channel_credentials *creds, const char *target, const grpc_channel_args *args, void *reserved);
-extern grpc_secure_channel_create_type grpc_secure_channel_create_import;
-#define grpc_secure_channel_create grpc_secure_channel_create_import
-typedef void(*grpc_server_credentials_release_type)(grpc_server_credentials *creds);
-extern grpc_server_credentials_release_type grpc_server_credentials_release_import;
-#define grpc_server_credentials_release grpc_server_credentials_release_import
-typedef grpc_server_credentials *(*grpc_ssl_server_credentials_create_type)(const char *pem_root_certs, grpc_ssl_pem_key_cert_pair *pem_key_cert_pairs, size_t num_key_cert_pairs, int force_client_auth, void *reserved);
-extern grpc_ssl_server_credentials_create_type grpc_ssl_server_credentials_create_import;
-#define grpc_ssl_server_credentials_create grpc_ssl_server_credentials_create_import
-typedef grpc_server_credentials *(*grpc_ssl_server_credentials_create_ex_type)(const char *pem_root_certs, grpc_ssl_pem_key_cert_pair *pem_key_cert_pairs, size_t num_key_cert_pairs, grpc_ssl_client_certificate_request_type client_certificate_request, void *reserved);
-extern grpc_ssl_server_credentials_create_ex_type grpc_ssl_server_credentials_create_ex_import;
-#define grpc_ssl_server_credentials_create_ex grpc_ssl_server_credentials_create_ex_import
-typedef int(*grpc_server_add_secure_http2_port_type)(grpc_server *server, const char *addr, grpc_server_credentials *creds);
-extern grpc_server_add_secure_http2_port_type grpc_server_add_secure_http2_port_import;
-#define grpc_server_add_secure_http2_port grpc_server_add_secure_http2_port_import
-typedef grpc_call_error(*grpc_call_set_credentials_type)(grpc_call *call, grpc_call_credentials *creds);
-extern grpc_call_set_credentials_type grpc_call_set_credentials_import;
-#define grpc_call_set_credentials grpc_call_set_credentials_import
-typedef void(*grpc_server_credentials_set_auth_metadata_processor_type)(grpc_server_credentials *creds, grpc_auth_metadata_processor processor);
-extern grpc_server_credentials_set_auth_metadata_processor_type grpc_server_credentials_set_auth_metadata_processor_import;
-#define grpc_server_credentials_set_auth_metadata_processor grpc_server_credentials_set_auth_metadata_processor_import
-typedef void *(*gpr_malloc_type)(size_t size);
-extern gpr_malloc_type gpr_malloc_import;
-#define gpr_malloc gpr_malloc_import
-typedef void(*gpr_free_type)(void *ptr);
-extern gpr_free_type gpr_free_import;
-#define gpr_free gpr_free_import
-typedef void *(*gpr_realloc_type)(void *p, size_t size);
-extern gpr_realloc_type gpr_realloc_import;
-#define gpr_realloc gpr_realloc_import
-typedef void *(*gpr_malloc_aligned_type)(size_t size, size_t alignment_log);
-extern gpr_malloc_aligned_type gpr_malloc_aligned_import;
-#define gpr_malloc_aligned gpr_malloc_aligned_import
-typedef void(*gpr_free_aligned_type)(void *ptr);
-extern gpr_free_aligned_type gpr_free_aligned_import;
-#define gpr_free_aligned gpr_free_aligned_import
-typedef void(*gpr_set_allocation_functions_type)(gpr_allocation_functions functions);
-extern gpr_set_allocation_functions_type gpr_set_allocation_functions_import;
-#define gpr_set_allocation_functions gpr_set_allocation_functions_import
-typedef gpr_allocation_functions(*gpr_get_allocation_functions_type)();
-extern gpr_get_allocation_functions_type gpr_get_allocation_functions_import;
-#define gpr_get_allocation_functions gpr_get_allocation_functions_import
-typedef grpc_byte_buffer *(*grpc_raw_byte_buffer_create_type)(gpr_slice *slices, size_t nslices);
-extern grpc_raw_byte_buffer_create_type grpc_raw_byte_buffer_create_import;
-#define grpc_raw_byte_buffer_create grpc_raw_byte_buffer_create_import
-typedef grpc_byte_buffer *(*grpc_raw_compressed_byte_buffer_create_type)(gpr_slice *slices, size_t nslices, grpc_compression_algorithm compression);
-extern grpc_raw_compressed_byte_buffer_create_type grpc_raw_compressed_byte_buffer_create_import;
-#define grpc_raw_compressed_byte_buffer_create grpc_raw_compressed_byte_buffer_create_import
-typedef grpc_byte_buffer *(*grpc_byte_buffer_copy_type)(grpc_byte_buffer *bb);
-extern grpc_byte_buffer_copy_type grpc_byte_buffer_copy_import;
-#define grpc_byte_buffer_copy grpc_byte_buffer_copy_import
-typedef size_t(*grpc_byte_buffer_length_type)(grpc_byte_buffer *bb);
-extern grpc_byte_buffer_length_type grpc_byte_buffer_length_import;
-#define grpc_byte_buffer_length grpc_byte_buffer_length_import
-typedef void(*grpc_byte_buffer_destroy_type)(grpc_byte_buffer *byte_buffer);
-extern grpc_byte_buffer_destroy_type grpc_byte_buffer_destroy_import;
-#define grpc_byte_buffer_destroy grpc_byte_buffer_destroy_import
-typedef int(*grpc_byte_buffer_reader_init_type)(grpc_byte_buffer_reader *reader, grpc_byte_buffer *buffer);
-extern grpc_byte_buffer_reader_init_type grpc_byte_buffer_reader_init_import;
-#define grpc_byte_buffer_reader_init grpc_byte_buffer_reader_init_import
-typedef void(*grpc_byte_buffer_reader_destroy_type)(grpc_byte_buffer_reader *reader);
-extern grpc_byte_buffer_reader_destroy_type grpc_byte_buffer_reader_destroy_import;
-#define grpc_byte_buffer_reader_destroy grpc_byte_buffer_reader_destroy_import
-typedef int(*grpc_byte_buffer_reader_next_type)(grpc_byte_buffer_reader *reader, gpr_slice *slice);
-extern grpc_byte_buffer_reader_next_type grpc_byte_buffer_reader_next_import;
-#define grpc_byte_buffer_reader_next grpc_byte_buffer_reader_next_import
-typedef gpr_slice(*grpc_byte_buffer_reader_readall_type)(grpc_byte_buffer_reader *reader);
-extern grpc_byte_buffer_reader_readall_type grpc_byte_buffer_reader_readall_import;
-#define grpc_byte_buffer_reader_readall grpc_byte_buffer_reader_readall_import
-typedef grpc_byte_buffer *(*grpc_raw_byte_buffer_from_reader_type)(grpc_byte_buffer_reader *reader);
-extern grpc_raw_byte_buffer_from_reader_type grpc_raw_byte_buffer_from_reader_import;
-#define grpc_raw_byte_buffer_from_reader grpc_raw_byte_buffer_from_reader_import
-typedef void(*gpr_log_type)(const char *file, int line, gpr_log_severity severity, const char *format, ...) GPRC_PRINT_FORMAT_CHECK(4, 5);
-extern gpr_log_type gpr_log_import;
-#define gpr_log gpr_log_import
-typedef void(*gpr_log_message_type)(const char *file, int line, gpr_log_severity severity, const char *message);
-extern gpr_log_message_type gpr_log_message_import;
-#define gpr_log_message gpr_log_message_import
-typedef void(*gpr_set_log_verbosity_type)(gpr_log_severity min_severity_to_print);
-extern gpr_set_log_verbosity_type gpr_set_log_verbosity_import;
-#define gpr_set_log_verbosity gpr_set_log_verbosity_import
-typedef void(*gpr_log_verbosity_init_type)();
-extern gpr_log_verbosity_init_type gpr_log_verbosity_init_import;
-#define gpr_log_verbosity_init gpr_log_verbosity_init_import
-typedef void(*gpr_set_log_function_type)(gpr_log_func func);
-extern gpr_set_log_function_type gpr_set_log_function_import;
-#define gpr_set_log_function gpr_set_log_function_import
-typedef gpr_slice(*gpr_slice_ref_type)(gpr_slice s);
-extern gpr_slice_ref_type gpr_slice_ref_import;
-#define gpr_slice_ref gpr_slice_ref_import
-typedef void(*gpr_slice_unref_type)(gpr_slice s);
-extern gpr_slice_unref_type gpr_slice_unref_import;
-#define gpr_slice_unref gpr_slice_unref_import
-typedef gpr_slice(*gpr_slice_new_type)(void *p, size_t len, void (*destroy)(void *));
-extern gpr_slice_new_type gpr_slice_new_import;
-#define gpr_slice_new gpr_slice_new_import
-typedef gpr_slice(*gpr_slice_new_with_len_type)(void *p, size_t len, void (*destroy)(void *, size_t));
-extern gpr_slice_new_with_len_type gpr_slice_new_with_len_import;
-#define gpr_slice_new_with_len gpr_slice_new_with_len_import
-typedef gpr_slice(*gpr_slice_malloc_type)(size_t length);
-extern gpr_slice_malloc_type gpr_slice_malloc_import;
-#define gpr_slice_malloc gpr_slice_malloc_import
-typedef gpr_slice(*gpr_slice_from_copied_string_type)(const char *source);
-extern gpr_slice_from_copied_string_type gpr_slice_from_copied_string_import;
-#define gpr_slice_from_copied_string gpr_slice_from_copied_string_import
-typedef gpr_slice(*gpr_slice_from_copied_buffer_type)(const char *source, size_t len);
-extern gpr_slice_from_copied_buffer_type gpr_slice_from_copied_buffer_import;
-#define gpr_slice_from_copied_buffer gpr_slice_from_copied_buffer_import
-typedef gpr_slice(*gpr_slice_from_static_string_type)(const char *source);
-extern gpr_slice_from_static_string_type gpr_slice_from_static_string_import;
-#define gpr_slice_from_static_string gpr_slice_from_static_string_import
-typedef gpr_slice(*gpr_slice_sub_type)(gpr_slice s, size_t begin, size_t end);
-extern gpr_slice_sub_type gpr_slice_sub_import;
-#define gpr_slice_sub gpr_slice_sub_import
-typedef gpr_slice(*gpr_slice_sub_no_ref_type)(gpr_slice s, size_t begin, size_t end);
-extern gpr_slice_sub_no_ref_type gpr_slice_sub_no_ref_import;
-#define gpr_slice_sub_no_ref gpr_slice_sub_no_ref_import
-typedef gpr_slice(*gpr_slice_split_tail_type)(gpr_slice *s, size_t split);
-extern gpr_slice_split_tail_type gpr_slice_split_tail_import;
-#define gpr_slice_split_tail gpr_slice_split_tail_import
-typedef gpr_slice(*gpr_slice_split_head_type)(gpr_slice *s, size_t split);
-extern gpr_slice_split_head_type gpr_slice_split_head_import;
-#define gpr_slice_split_head gpr_slice_split_head_import
-typedef gpr_slice(*gpr_empty_slice_type)(void);
-extern gpr_empty_slice_type gpr_empty_slice_import;
-#define gpr_empty_slice gpr_empty_slice_import
-typedef int(*gpr_slice_cmp_type)(gpr_slice a, gpr_slice b);
-extern gpr_slice_cmp_type gpr_slice_cmp_import;
-#define gpr_slice_cmp gpr_slice_cmp_import
-typedef int(*gpr_slice_str_cmp_type)(gpr_slice a, const char *b);
-extern gpr_slice_str_cmp_type gpr_slice_str_cmp_import;
-#define gpr_slice_str_cmp gpr_slice_str_cmp_import
-typedef void(*gpr_slice_buffer_init_type)(gpr_slice_buffer *sb);
-extern gpr_slice_buffer_init_type gpr_slice_buffer_init_import;
-#define gpr_slice_buffer_init gpr_slice_buffer_init_import
-typedef void(*gpr_slice_buffer_destroy_type)(gpr_slice_buffer *sb);
-extern gpr_slice_buffer_destroy_type gpr_slice_buffer_destroy_import;
-#define gpr_slice_buffer_destroy gpr_slice_buffer_destroy_import
-typedef void(*gpr_slice_buffer_add_type)(gpr_slice_buffer *sb, gpr_slice slice);
-extern gpr_slice_buffer_add_type gpr_slice_buffer_add_import;
-#define gpr_slice_buffer_add gpr_slice_buffer_add_import
-typedef size_t(*gpr_slice_buffer_add_indexed_type)(gpr_slice_buffer *sb, gpr_slice slice);
-extern gpr_slice_buffer_add_indexed_type gpr_slice_buffer_add_indexed_import;
-#define gpr_slice_buffer_add_indexed gpr_slice_buffer_add_indexed_import
-typedef void(*gpr_slice_buffer_addn_type)(gpr_slice_buffer *sb, gpr_slice *slices, size_t n);
-extern gpr_slice_buffer_addn_type gpr_slice_buffer_addn_import;
-#define gpr_slice_buffer_addn gpr_slice_buffer_addn_import
-typedef uint8_t *(*gpr_slice_buffer_tiny_add_type)(gpr_slice_buffer *sb, size_t len);
-extern gpr_slice_buffer_tiny_add_type gpr_slice_buffer_tiny_add_import;
-#define gpr_slice_buffer_tiny_add gpr_slice_buffer_tiny_add_import
-typedef void(*gpr_slice_buffer_pop_type)(gpr_slice_buffer *sb);
-extern gpr_slice_buffer_pop_type gpr_slice_buffer_pop_import;
-#define gpr_slice_buffer_pop gpr_slice_buffer_pop_import
-typedef void(*gpr_slice_buffer_reset_and_unref_type)(gpr_slice_buffer *sb);
-extern gpr_slice_buffer_reset_and_unref_type gpr_slice_buffer_reset_and_unref_import;
-#define gpr_slice_buffer_reset_and_unref gpr_slice_buffer_reset_and_unref_import
-typedef void(*gpr_slice_buffer_swap_type)(gpr_slice_buffer *a, gpr_slice_buffer *b);
-extern gpr_slice_buffer_swap_type gpr_slice_buffer_swap_import;
-#define gpr_slice_buffer_swap gpr_slice_buffer_swap_import
-typedef void(*gpr_slice_buffer_move_into_type)(gpr_slice_buffer *src, gpr_slice_buffer *dst);
-extern gpr_slice_buffer_move_into_type gpr_slice_buffer_move_into_import;
-#define gpr_slice_buffer_move_into gpr_slice_buffer_move_into_import
-typedef void(*gpr_slice_buffer_trim_end_type)(gpr_slice_buffer *src, size_t n, gpr_slice_buffer *garbage);
-extern gpr_slice_buffer_trim_end_type gpr_slice_buffer_trim_end_import;
-#define gpr_slice_buffer_trim_end gpr_slice_buffer_trim_end_import
-typedef void(*gpr_slice_buffer_move_first_type)(gpr_slice_buffer *src, size_t n, gpr_slice_buffer *dst);
-extern gpr_slice_buffer_move_first_type gpr_slice_buffer_move_first_import;
-#define gpr_slice_buffer_move_first gpr_slice_buffer_move_first_import
-typedef gpr_slice(*gpr_slice_buffer_take_first_type)(gpr_slice_buffer *src);
-extern gpr_slice_buffer_take_first_type gpr_slice_buffer_take_first_import;
-#define gpr_slice_buffer_take_first gpr_slice_buffer_take_first_import
-typedef void(*gpr_mu_init_type)(gpr_mu *mu);
-extern gpr_mu_init_type gpr_mu_init_import;
-#define gpr_mu_init gpr_mu_init_import
-typedef void(*gpr_mu_destroy_type)(gpr_mu *mu);
-extern gpr_mu_destroy_type gpr_mu_destroy_import;
-#define gpr_mu_destroy gpr_mu_destroy_import
-typedef void(*gpr_mu_lock_type)(gpr_mu *mu);
-extern gpr_mu_lock_type gpr_mu_lock_import;
-#define gpr_mu_lock gpr_mu_lock_import
-typedef void(*gpr_mu_unlock_type)(gpr_mu *mu);
-extern gpr_mu_unlock_type gpr_mu_unlock_import;
-#define gpr_mu_unlock gpr_mu_unlock_import
-typedef int(*gpr_mu_trylock_type)(gpr_mu *mu);
-extern gpr_mu_trylock_type gpr_mu_trylock_import;
-#define gpr_mu_trylock gpr_mu_trylock_import
-typedef void(*gpr_cv_init_type)(gpr_cv *cv);
-extern gpr_cv_init_type gpr_cv_init_import;
-#define gpr_cv_init gpr_cv_init_import
-typedef void(*gpr_cv_destroy_type)(gpr_cv *cv);
-extern gpr_cv_destroy_type gpr_cv_destroy_import;
-#define gpr_cv_destroy gpr_cv_destroy_import
-typedef int(*gpr_cv_wait_type)(gpr_cv *cv, gpr_mu *mu, gpr_timespec abs_deadline);
-extern gpr_cv_wait_type gpr_cv_wait_import;
-#define gpr_cv_wait gpr_cv_wait_import
-typedef void(*gpr_cv_signal_type)(gpr_cv *cv);
-extern gpr_cv_signal_type gpr_cv_signal_import;
-#define gpr_cv_signal gpr_cv_signal_import
-typedef void(*gpr_cv_broadcast_type)(gpr_cv *cv);
-extern gpr_cv_broadcast_type gpr_cv_broadcast_import;
-#define gpr_cv_broadcast gpr_cv_broadcast_import
-typedef void(*gpr_once_init_type)(gpr_once *once, void (*init_routine)(void));
-extern gpr_once_init_type gpr_once_init_import;
-#define gpr_once_init gpr_once_init_import
-typedef void(*gpr_event_init_type)(gpr_event *ev);
-extern gpr_event_init_type gpr_event_init_import;
-#define gpr_event_init gpr_event_init_import
-typedef void(*gpr_event_set_type)(gpr_event *ev, void *value);
-extern gpr_event_set_type gpr_event_set_import;
-#define gpr_event_set gpr_event_set_import
-typedef void *(*gpr_event_get_type)(gpr_event *ev);
-extern gpr_event_get_type gpr_event_get_import;
-#define gpr_event_get gpr_event_get_import
-typedef void *(*gpr_event_wait_type)(gpr_event *ev, gpr_timespec abs_deadline);
-extern gpr_event_wait_type gpr_event_wait_import;
-#define gpr_event_wait gpr_event_wait_import
-typedef void(*gpr_ref_init_type)(gpr_refcount *r, int n);
-extern gpr_ref_init_type gpr_ref_init_import;
-#define gpr_ref_init gpr_ref_init_import
-typedef void(*gpr_ref_type)(gpr_refcount *r);
-extern gpr_ref_type gpr_ref_import;
-#define gpr_ref gpr_ref_import
-typedef void(*gpr_ref_non_zero_type)(gpr_refcount *r);
-extern gpr_ref_non_zero_type gpr_ref_non_zero_import;
-#define gpr_ref_non_zero gpr_ref_non_zero_import
-typedef void(*gpr_refn_type)(gpr_refcount *r, int n);
-extern gpr_refn_type gpr_refn_import;
-#define gpr_refn gpr_refn_import
-typedef int(*gpr_unref_type)(gpr_refcount *r);
-extern gpr_unref_type gpr_unref_import;
-#define gpr_unref gpr_unref_import
-typedef void(*gpr_stats_init_type)(gpr_stats_counter *c, intptr_t n);
-extern gpr_stats_init_type gpr_stats_init_import;
-#define gpr_stats_init gpr_stats_init_import
-typedef void(*gpr_stats_inc_type)(gpr_stats_counter *c, intptr_t inc);
-extern gpr_stats_inc_type gpr_stats_inc_import;
-#define gpr_stats_inc gpr_stats_inc_import
-typedef intptr_t(*gpr_stats_read_type)(const gpr_stats_counter *c);
-extern gpr_stats_read_type gpr_stats_read_import;
-#define gpr_stats_read gpr_stats_read_import
-typedef gpr_timespec(*gpr_time_0_type)(gpr_clock_type type);
-extern gpr_time_0_type gpr_time_0_import;
-#define gpr_time_0 gpr_time_0_import
-typedef gpr_timespec(*gpr_inf_future_type)(gpr_clock_type type);
-extern gpr_inf_future_type gpr_inf_future_import;
-#define gpr_inf_future gpr_inf_future_import
-typedef gpr_timespec(*gpr_inf_past_type)(gpr_clock_type type);
-extern gpr_inf_past_type gpr_inf_past_import;
-#define gpr_inf_past gpr_inf_past_import
-typedef void(*gpr_time_init_type)(void);
-extern gpr_time_init_type gpr_time_init_import;
-#define gpr_time_init gpr_time_init_import
-typedef gpr_timespec(*gpr_now_type)(gpr_clock_type clock);
-extern gpr_now_type gpr_now_import;
-#define gpr_now gpr_now_import
-typedef gpr_timespec(*gpr_convert_clock_type_type)(gpr_timespec t, gpr_clock_type target_clock);
-extern gpr_convert_clock_type_type gpr_convert_clock_type_import;
-#define gpr_convert_clock_type gpr_convert_clock_type_import
-typedef int(*gpr_time_cmp_type)(gpr_timespec a, gpr_timespec b);
-extern gpr_time_cmp_type gpr_time_cmp_import;
-#define gpr_time_cmp gpr_time_cmp_import
-typedef gpr_timespec(*gpr_time_max_type)(gpr_timespec a, gpr_timespec b);
-extern gpr_time_max_type gpr_time_max_import;
-#define gpr_time_max gpr_time_max_import
-typedef gpr_timespec(*gpr_time_min_type)(gpr_timespec a, gpr_timespec b);
-extern gpr_time_min_type gpr_time_min_import;
-#define gpr_time_min gpr_time_min_import
-typedef gpr_timespec(*gpr_time_add_type)(gpr_timespec a, gpr_timespec b);
-extern gpr_time_add_type gpr_time_add_import;
-#define gpr_time_add gpr_time_add_import
-typedef gpr_timespec(*gpr_time_sub_type)(gpr_timespec a, gpr_timespec b);
-extern gpr_time_sub_type gpr_time_sub_import;
-#define gpr_time_sub gpr_time_sub_import
-typedef gpr_timespec(*gpr_time_from_micros_type)(int64_t x, gpr_clock_type clock_type);
-extern gpr_time_from_micros_type gpr_time_from_micros_import;
-#define gpr_time_from_micros gpr_time_from_micros_import
-typedef gpr_timespec(*gpr_time_from_nanos_type)(int64_t x, gpr_clock_type clock_type);
-extern gpr_time_from_nanos_type gpr_time_from_nanos_import;
-#define gpr_time_from_nanos gpr_time_from_nanos_import
-typedef gpr_timespec(*gpr_time_from_millis_type)(int64_t x, gpr_clock_type clock_type);
-extern gpr_time_from_millis_type gpr_time_from_millis_import;
-#define gpr_time_from_millis gpr_time_from_millis_import
-typedef gpr_timespec(*gpr_time_from_seconds_type)(int64_t x, gpr_clock_type clock_type);
-extern gpr_time_from_seconds_type gpr_time_from_seconds_import;
-#define gpr_time_from_seconds gpr_time_from_seconds_import
-typedef gpr_timespec(*gpr_time_from_minutes_type)(int64_t x, gpr_clock_type clock_type);
-extern gpr_time_from_minutes_type gpr_time_from_minutes_import;
-#define gpr_time_from_minutes gpr_time_from_minutes_import
-typedef gpr_timespec(*gpr_time_from_hours_type)(int64_t x, gpr_clock_type clock_type);
-extern gpr_time_from_hours_type gpr_time_from_hours_import;
-#define gpr_time_from_hours gpr_time_from_hours_import
-typedef int32_t(*gpr_time_to_millis_type)(gpr_timespec timespec);
-extern gpr_time_to_millis_type gpr_time_to_millis_import;
-#define gpr_time_to_millis gpr_time_to_millis_import
-typedef int(*gpr_time_similar_type)(gpr_timespec a, gpr_timespec b, gpr_timespec threshold);
-extern gpr_time_similar_type gpr_time_similar_import;
-#define gpr_time_similar gpr_time_similar_import
-typedef void(*gpr_sleep_until_type)(gpr_timespec until);
-extern gpr_sleep_until_type gpr_sleep_until_import;
-#define gpr_sleep_until gpr_sleep_until_import
-typedef double(*gpr_timespec_to_micros_type)(gpr_timespec t);
-extern gpr_timespec_to_micros_type gpr_timespec_to_micros_import;
-#define gpr_timespec_to_micros gpr_timespec_to_micros_import
-typedef gpr_avl(*gpr_avl_create_type)(const gpr_avl_vtable *vtable);
-extern gpr_avl_create_type gpr_avl_create_import;
-#define gpr_avl_create gpr_avl_create_import
-typedef gpr_avl(*gpr_avl_ref_type)(gpr_avl avl);
-extern gpr_avl_ref_type gpr_avl_ref_import;
-#define gpr_avl_ref gpr_avl_ref_import
-typedef void(*gpr_avl_unref_type)(gpr_avl avl);
-extern gpr_avl_unref_type gpr_avl_unref_import;
-#define gpr_avl_unref gpr_avl_unref_import
-typedef gpr_avl(*gpr_avl_add_type)(gpr_avl avl, void *key, void *value);
-extern gpr_avl_add_type gpr_avl_add_import;
-#define gpr_avl_add gpr_avl_add_import
-typedef gpr_avl(*gpr_avl_remove_type)(gpr_avl avl, void *key);
-extern gpr_avl_remove_type gpr_avl_remove_import;
-#define gpr_avl_remove gpr_avl_remove_import
-typedef void *(*gpr_avl_get_type)(gpr_avl avl, void *key);
-extern gpr_avl_get_type gpr_avl_get_import;
-#define gpr_avl_get gpr_avl_get_import
-typedef int(*gpr_avl_maybe_get_type)(gpr_avl avl, void *key, void **value);
-extern gpr_avl_maybe_get_type gpr_avl_maybe_get_import;
-#define gpr_avl_maybe_get gpr_avl_maybe_get_import
-typedef int(*gpr_avl_is_empty_type)(gpr_avl avl);
-extern gpr_avl_is_empty_type gpr_avl_is_empty_import;
-#define gpr_avl_is_empty gpr_avl_is_empty_import
-typedef gpr_cmdline *(*gpr_cmdline_create_type)(const char *description);
-extern gpr_cmdline_create_type gpr_cmdline_create_import;
-#define gpr_cmdline_create gpr_cmdline_create_import
-typedef void(*gpr_cmdline_add_int_type)(gpr_cmdline *cl, const char *name, const char *help, int *value);
-extern gpr_cmdline_add_int_type gpr_cmdline_add_int_import;
-#define gpr_cmdline_add_int gpr_cmdline_add_int_import
-typedef void(*gpr_cmdline_add_flag_type)(gpr_cmdline *cl, const char *name, const char *help, int *value);
-extern gpr_cmdline_add_flag_type gpr_cmdline_add_flag_import;
-#define gpr_cmdline_add_flag gpr_cmdline_add_flag_import
-typedef void(*gpr_cmdline_add_string_type)(gpr_cmdline *cl, const char *name, const char *help, char **value);
-extern gpr_cmdline_add_string_type gpr_cmdline_add_string_import;
-#define gpr_cmdline_add_string gpr_cmdline_add_string_import
-typedef void(*gpr_cmdline_on_extra_arg_type)(gpr_cmdline *cl, const char *name, const char *help, void (*on_extra_arg)(void *user_data, const char *arg), void *user_data);
-extern gpr_cmdline_on_extra_arg_type gpr_cmdline_on_extra_arg_import;
-#define gpr_cmdline_on_extra_arg gpr_cmdline_on_extra_arg_import
-typedef void(*gpr_cmdline_set_survive_failure_type)(gpr_cmdline *cl);
-extern gpr_cmdline_set_survive_failure_type gpr_cmdline_set_survive_failure_import;
-#define gpr_cmdline_set_survive_failure gpr_cmdline_set_survive_failure_import
-typedef int(*gpr_cmdline_parse_type)(gpr_cmdline *cl, int argc, char **argv);
-extern gpr_cmdline_parse_type gpr_cmdline_parse_import;
-#define gpr_cmdline_parse gpr_cmdline_parse_import
-typedef void(*gpr_cmdline_destroy_type)(gpr_cmdline *cl);
-extern gpr_cmdline_destroy_type gpr_cmdline_destroy_import;
-#define gpr_cmdline_destroy gpr_cmdline_destroy_import
-typedef char *(*gpr_cmdline_usage_string_type)(gpr_cmdline *cl, const char *argv0);
-extern gpr_cmdline_usage_string_type gpr_cmdline_usage_string_import;
-#define gpr_cmdline_usage_string gpr_cmdline_usage_string_import
-typedef unsigned(*gpr_cpu_num_cores_type)(void);
-extern gpr_cpu_num_cores_type gpr_cpu_num_cores_import;
-#define gpr_cpu_num_cores gpr_cpu_num_cores_import
-typedef unsigned(*gpr_cpu_current_cpu_type)(void);
-extern gpr_cpu_current_cpu_type gpr_cpu_current_cpu_import;
-#define gpr_cpu_current_cpu gpr_cpu_current_cpu_import
-typedef gpr_histogram *(*gpr_histogram_create_type)(double resolution, double max_bucket_start);
-extern gpr_histogram_create_type gpr_histogram_create_import;
-#define gpr_histogram_create gpr_histogram_create_import
-typedef void(*gpr_histogram_destroy_type)(gpr_histogram *h);
-extern gpr_histogram_destroy_type gpr_histogram_destroy_import;
-#define gpr_histogram_destroy gpr_histogram_destroy_import
-typedef void(*gpr_histogram_add_type)(gpr_histogram *h, double x);
-extern gpr_histogram_add_type gpr_histogram_add_import;
-#define gpr_histogram_add gpr_histogram_add_import
-typedef int(*gpr_histogram_merge_type)(gpr_histogram *dst, const gpr_histogram *src);
-extern gpr_histogram_merge_type gpr_histogram_merge_import;
-#define gpr_histogram_merge gpr_histogram_merge_import
-typedef double(*gpr_histogram_percentile_type)(gpr_histogram *histogram, double percentile);
-extern gpr_histogram_percentile_type gpr_histogram_percentile_import;
-#define gpr_histogram_percentile gpr_histogram_percentile_import
-typedef double(*gpr_histogram_mean_type)(gpr_histogram *histogram);
-extern gpr_histogram_mean_type gpr_histogram_mean_import;
-#define gpr_histogram_mean gpr_histogram_mean_import
-typedef double(*gpr_histogram_stddev_type)(gpr_histogram *histogram);
-extern gpr_histogram_stddev_type gpr_histogram_stddev_import;
-#define gpr_histogram_stddev gpr_histogram_stddev_import
-typedef double(*gpr_histogram_variance_type)(gpr_histogram *histogram);
-extern gpr_histogram_variance_type gpr_histogram_variance_import;
-#define gpr_histogram_variance gpr_histogram_variance_import
-typedef double(*gpr_histogram_maximum_type)(gpr_histogram *histogram);
-extern gpr_histogram_maximum_type gpr_histogram_maximum_import;
-#define gpr_histogram_maximum gpr_histogram_maximum_import
-typedef double(*gpr_histogram_minimum_type)(gpr_histogram *histogram);
-extern gpr_histogram_minimum_type gpr_histogram_minimum_import;
-#define gpr_histogram_minimum gpr_histogram_minimum_import
-typedef double(*gpr_histogram_count_type)(gpr_histogram *histogram);
-extern gpr_histogram_count_type gpr_histogram_count_import;
-#define gpr_histogram_count gpr_histogram_count_import
-typedef double(*gpr_histogram_sum_type)(gpr_histogram *histogram);
-extern gpr_histogram_sum_type gpr_histogram_sum_import;
-#define gpr_histogram_sum gpr_histogram_sum_import
-typedef double(*gpr_histogram_sum_of_squares_type)(gpr_histogram *histogram);
-extern gpr_histogram_sum_of_squares_type gpr_histogram_sum_of_squares_import;
-#define gpr_histogram_sum_of_squares gpr_histogram_sum_of_squares_import
-typedef const uint32_t *(*gpr_histogram_get_contents_type)(gpr_histogram *histogram, size_t *count);
-extern gpr_histogram_get_contents_type gpr_histogram_get_contents_import;
-#define gpr_histogram_get_contents gpr_histogram_get_contents_import
-typedef void(*gpr_histogram_merge_contents_type)(gpr_histogram *histogram, const uint32_t *data, size_t data_count, double min_seen, double max_seen, double sum, double sum_of_squares, double count);
-extern gpr_histogram_merge_contents_type gpr_histogram_merge_contents_import;
-#define gpr_histogram_merge_contents gpr_histogram_merge_contents_import
-typedef int(*gpr_join_host_port_type)(char **out, const char *host, int port);
-extern gpr_join_host_port_type gpr_join_host_port_import;
-#define gpr_join_host_port gpr_join_host_port_import
-typedef int(*gpr_split_host_port_type)(const char *name, char **host, char **port);
-extern gpr_split_host_port_type gpr_split_host_port_import;
-#define gpr_split_host_port gpr_split_host_port_import
-typedef char *(*gpr_format_message_type)(int messageid);
-extern gpr_format_message_type gpr_format_message_import;
-#define gpr_format_message gpr_format_message_import
-typedef char *(*gpr_strdup_type)(const char *src);
-extern gpr_strdup_type gpr_strdup_import;
-#define gpr_strdup gpr_strdup_import
-typedef int(*gpr_asprintf_type)(char **strp, const char *format, ...) GPRC_PRINT_FORMAT_CHECK(2, 3);
-extern gpr_asprintf_type gpr_asprintf_import;
-#define gpr_asprintf gpr_asprintf_import
-typedef const char *(*gpr_subprocess_binary_extension_type)();
-extern gpr_subprocess_binary_extension_type gpr_subprocess_binary_extension_import;
-#define gpr_subprocess_binary_extension gpr_subprocess_binary_extension_import
-typedef gpr_subprocess *(*gpr_subprocess_create_type)(int argc, const char **argv);
-extern gpr_subprocess_create_type gpr_subprocess_create_import;
-#define gpr_subprocess_create gpr_subprocess_create_import
-typedef void(*gpr_subprocess_destroy_type)(gpr_subprocess *p);
-extern gpr_subprocess_destroy_type gpr_subprocess_destroy_import;
-#define gpr_subprocess_destroy gpr_subprocess_destroy_import
-typedef int(*gpr_subprocess_join_type)(gpr_subprocess *p);
-extern gpr_subprocess_join_type gpr_subprocess_join_import;
-#define gpr_subprocess_join gpr_subprocess_join_import
-typedef void(*gpr_subprocess_interrupt_type)(gpr_subprocess *p);
-extern gpr_subprocess_interrupt_type gpr_subprocess_interrupt_import;
-#define gpr_subprocess_interrupt gpr_subprocess_interrupt_import
-typedef int(*gpr_thd_new_type)(gpr_thd_id *t, void (*thd_body)(void *arg), void *arg, const gpr_thd_options *options);
-extern gpr_thd_new_type gpr_thd_new_import;
-#define gpr_thd_new gpr_thd_new_import
-typedef gpr_thd_options(*gpr_thd_options_default_type)(void);
-extern gpr_thd_options_default_type gpr_thd_options_default_import;
-#define gpr_thd_options_default gpr_thd_options_default_import
-typedef void(*gpr_thd_options_set_detached_type)(gpr_thd_options *options);
-extern gpr_thd_options_set_detached_type gpr_thd_options_set_detached_import;
-#define gpr_thd_options_set_detached gpr_thd_options_set_detached_import
-typedef void(*gpr_thd_options_set_joinable_type)(gpr_thd_options *options);
-extern gpr_thd_options_set_joinable_type gpr_thd_options_set_joinable_import;
-#define gpr_thd_options_set_joinable gpr_thd_options_set_joinable_import
-typedef int(*gpr_thd_options_is_detached_type)(const gpr_thd_options *options);
-extern gpr_thd_options_is_detached_type gpr_thd_options_is_detached_import;
-#define gpr_thd_options_is_detached gpr_thd_options_is_detached_import
-typedef int(*gpr_thd_options_is_joinable_type)(const gpr_thd_options *options);
-extern gpr_thd_options_is_joinable_type gpr_thd_options_is_joinable_import;
-#define gpr_thd_options_is_joinable gpr_thd_options_is_joinable_import
-typedef gpr_thd_id(*gpr_thd_currentid_type)(void);
-extern gpr_thd_currentid_type gpr_thd_currentid_import;
-#define gpr_thd_currentid gpr_thd_currentid_import
-typedef void(*gpr_thd_join_type)(gpr_thd_id t);
-extern gpr_thd_join_type gpr_thd_join_import;
-#define gpr_thd_join gpr_thd_join_import
-
-#ifdef __cplusplus
-extern "C" {
-#endif  /* __cpluslus */
-
-void pygrpc_load_imports(HMODULE library);
-
-#ifdef __cplusplus
-}
-#endif  /* __cpluslus */
-
-#else /* !GPR_WINDOWS */
-
 #include <grpc/byte_buffer.h>
 #include <grpc/byte_buffer_reader.h>
 #include <grpc/compression.h>
@@ -895,6 +47,4 @@ void pygrpc_load_imports(HMODULE library);
 #include <grpc/support/time.h>
 #include <grpc/status.h>
 
-#endif /* !GPR_WINDOWS */
-
 #endif

src/python/grpcio/grpc/_cython/loader.c

@@ -38,37 +38,10 @@
 extern "C" {
 #endif  /* __cpluslus  */
 
-#if GPR_WINDOWS
-
-int pygrpc_load_core(char *path) {
-  HMODULE grpc_c;
-#ifdef GPR_ARCH_32
-  /* Close your eyes for a moment, it'll all be over soon. */
-  char *six = strrchr(path, '6');
-  *six++ = '3';
-  *six = '2';
-#endif
-  grpc_c = LoadLibraryA(path);
-  if (grpc_c) {
-    pygrpc_load_imports(grpc_c);
-    return 1;
-  }
-
-  return 0;
-}
-
-#else
+/* TODO(atash) remove cruft */
 
 int pygrpc_load_core(char *path) { return 1; }
 
-#endif  /* !GPR_WINDOWS */
-
-// Cython doesn't have Py_AtExit bindings, so we call the C_API directly
-int pygrpc_initialize_core(void) {
-  grpc_init();
-  return Py_AtExit(grpc_shutdown) < 0 ? 0 : 1;
-}
-
 #ifdef __cplusplus
 }
 #endif  /* __cpluslus */

src/python/grpcio/grpc/_cython/loader.h

@@ -39,6 +39,8 @@
 /* Additional inclusions not covered by "imports.generated.h" */
 #include <grpc/byte_buffer_reader.h>
 
+/* TODO(atash) remove cruft */
+
 #ifdef __cplusplus
 extern "C" {
 #endif  /* __cpluslus */

templates/src/python/grpcio/grpc/_cython/imports.generated.c.template

@@ -33,29 +33,9 @@
    *
    */
 
+  /* TODO(atash) remove cruft */
   #include <grpc/support/port_platform.h>
 
   #include "imports.generated.h"
 
-  #ifdef GPR_WINDOWS
-
-  %for api in c_apis:
-  ${api.name}_type ${api.name}_import;
-  %endfor
-
-  #ifdef __cplusplus
-  extern "C" {
-  #endif  /* __cpluslus */
-
-  void pygrpc_load_imports(HMODULE library) {
-  %for api in c_apis:
-    ${api.name}_import = (${api.name}_type) GetProcAddress(library, "${api.name}");
-  %endfor
-  }
-
-  #ifdef __cplusplus
-  }
-  #endif  /* __cpluslus */
-
-  #endif /* !GPR_WINDOWS */
 

templates/src/python/grpcio/grpc/_cython/imports.generated.h.template

@@ -33,37 +33,12 @@
    *
    */
 
+  /* TODO(atash) remove cruft */
   #ifndef PYGRPC_CYTHON_WINDOWS_IMPORTS_H_
   #define PYGRPC_CYTHON_WINDOWS_IMPORTS_H_
 
   #include <grpc/support/port_platform.h>
 
-  #ifdef GPR_WINDOWS
-
-  #include <windows.h>
-
-  %for header in sorted(set(api.header for api in c_apis)):
-  #include <${'/'.join(header.split('/')[1:])}>
-  %endfor
-
-  %for api in c_apis:
-  typedef ${api.return_type}(*${api.name}_type)(${api.arguments});
-  extern ${api.name}_type ${api.name}_import;
-  #define ${api.name} ${api.name}_import
-  %endfor
-
-  #ifdef __cplusplus
-  extern "C" {
-  #endif  /* __cpluslus */
-
-  void pygrpc_load_imports(HMODULE library);
-
-  #ifdef __cplusplus
-  }
-  #endif  /* __cpluslus */
-
-  #else /* !GPR_WINDOWS */
-
   #include <grpc/byte_buffer.h>
   #include <grpc/byte_buffer_reader.h>
   #include <grpc/compression.h>
@@ -74,6 +49,4 @@
   #include <grpc/support/time.h>
   #include <grpc/status.h>
 
-  #endif /* !GPR_WINDOWS */
-
   #endif

tools/distrib/python/grpcio_tools/setup.py

@@ -32,6 +32,7 @@ import errno
 import os
 import os.path
 import pkg_resources
+import platform
 import shlex
 import shutil
 import sys
@@ -45,6 +46,9 @@ from setuptools.command import build_ext
 os.chdir(os.path.dirname(os.path.abspath(__file__)))
 sys.path.insert(0, os.path.abspath('.'))
 
+import protoc_lib_deps
+import grpc_version
+
 PY3 = sys.version_info.major == 3
 
 # There are some situations (like on Windows) where CC, CFLAGS, and LDFLAGS are
@@ -60,8 +64,9 @@ EXTRA_LINK_ARGS = shlex.split(os.environ.get('GRPC_PYTHON_LDFLAGS',
 GRPC_PYTHON_TOOLS_PACKAGE = 'grpc.tools'
 GRPC_PYTHON_PROTO_RESOURCES_NAME = '_proto'
 
-import protoc_lib_deps
-import grpc_version
+DEFINE_MACROS = (('HAVE_PTHREAD', 1),)
+if "win32" in sys.platform and '64bit' in platform.architecture()[0]:
+  DEFINE_MACROS += (('MS_WIN64', 1),)
 
 # By default, Python3 distutils enforces compatibility of
 # c plugins (.so files) with the OSX version Python3 was built with.
@@ -108,9 +113,9 @@ def protoc_ext_module():
           protoc_lib_deps.CC_INCLUDE,
       ],
       language='c++',
-      define_macros=[('HAVE_PTHREAD', 1)],
-      extra_compile_args=EXTRA_COMPILE_ARGS,
-      extra_link_args=EXTRA_LINK_ARGS,
+      define_macros=list(DEFINE_MACROS),
+      extra_compile_args=list(EXTRA_COMPILE_ARGS),
+      extra_link_args=list(EXTRA_LINK_ARGS),
   )
   return plugin_ext
 

tools/run_tests/build_python.sh

@@ -40,7 +40,7 @@ VENV_RELATIVE_PYTHON=${3:-bin/python}
 TOOLCHAIN=${4:-unix}
 
 ROOT=`pwd`
-export CFLAGS="-I$ROOT/include -std=gnu99 -fno-wrapv"
+export CFLAGS="-I$ROOT/include -std=gnu99 -fno-wrapv $CFLAGS"
 export GRPC_PYTHON_BUILD_WITH_CYTHON=1
 
 # Default python on the host to fall back to when instantiating e.g. the
@@ -61,6 +61,19 @@ if [ "${PLATFORM/Darwin}" = "$PLATFORM" ]; then
     fi
   fi
 fi
+# TODO(atash) consider conceptualizing MinGW as a first-class platform and move
+# these flags into our `setup.py`s
+if [ "${PLATFORM/MINGW}" != "$PLATFORM" ]; then
+  # We're on MinGW, and our CFLAGS and LDFLAGS will be eaten by the void. Use
+  # our work-around environment variables instead.
+  PYTHON_MSVCR=`$PYTHON -c "from distutils.cygwinccompiler import get_msvcr; print(get_msvcr()[0])"`
+  export GRPC_PYTHON_LDFLAGS="-static-libgcc -static-libstdc++ -mcrtdll=$PYTHON_MSVCR -static -lpthread"
+  # See https://sourceforge.net/p/mingw-w64/bugs/363/
+  export GRPC_PYTHON_CFLAGS="-D_ftime=_ftime64 -D_timeb=__timeb64"
+  # TODO(atash) set these flags for only grpcio-tools (they don't do any harm to
+  # grpcio, but they result in noisy warnings).
+  export GRPC_PYTHON_CFLAGS="-frtti -std=c++11 $GRPC_PYTHON_CFLAGS"
+fi
 
 # Find `realpath`
 if [ -x "$(command -v realpath)" ]; then