Move _server_cert_config_fetcher_wrapper to credentials.pyx.pxi

src/python/grpcio/grpc/_cython/_cygrpc/credentials.pyx.pxi

@@ -282,3 +282,41 @@ def server_credentials_ssl_dynamic_cert_config(initial_cert_config,
   # C-core assumes ownership of c_options
   credentials.c_credentials = grpc_ssl_server_credentials_create_with_options(c_options)
   return credentials
+
+cdef grpc_ssl_certificate_config_reload_status _server_cert_config_fetcher_wrapper(
+        void* user_data, grpc_ssl_server_certificate_config **config) with gil:
+  # This is a credentials.ServerCertificateConfig
+  cdef ServerCertificateConfig cert_config = None
+  if not user_data:
+    raise ValueError('internal error: user_data must be specified')
+  credentials = <ServerCredentials>user_data
+  if not credentials.initial_cert_config_fetched:
+    # C-core is asking for the initial cert config
+    credentials.initial_cert_config_fetched = True
+    cert_config = credentials.initial_cert_config._certificate_configuration
+  else:
+    user_cb = credentials.cert_config_fetcher
+    try:
+      cert_config_wrapper = user_cb()
+    except Exception:
+      _LOGGER.exception('Error fetching certificate config')
+      return GRPC_SSL_CERTIFICATE_CONFIG_RELOAD_FAIL
+    if cert_config_wrapper is None:
+      return GRPC_SSL_CERTIFICATE_CONFIG_RELOAD_UNCHANGED
+    elif not isinstance(
+        cert_config_wrapper, grpc.ServerCertificateConfiguration):
+      _LOGGER.error(
+          'Error fetching certificate configuration: certificate '
+          'configuration must be of type grpc.ServerCertificateConfiguration, '
+          'not %s' % type(cert_config_wrapper).__name__)
+      return GRPC_SSL_CERTIFICATE_CONFIG_RELOAD_FAIL
+    else:
+      cert_config = cert_config_wrapper._certificate_configuration
+  config[0] = <grpc_ssl_server_certificate_config*>cert_config.c_cert_config
+  # our caller will assume ownership of memory, so we have to recreate
+  # a copy of c_cert_config here
+  cert_config.c_cert_config = grpc_ssl_server_certificate_config_create(
+      cert_config.c_pem_root_certs, cert_config.c_ssl_pem_key_cert_pairs,
+      cert_config.c_ssl_pem_key_cert_pairs_count)
+  return GRPC_SSL_CERTIFICATE_CONFIG_RELOAD_NEW
+

src/python/grpcio/grpc/_cython/_cygrpc/server.pyx.pxi

@@ -20,43 +20,6 @@ import grpc
 
 _LOGGER = logging.getLogger(__name__)
 
-cdef grpc_ssl_certificate_config_reload_status _server_cert_config_fetcher_wrapper(
-        void* user_data, grpc_ssl_server_certificate_config **config) with gil:
-  # This is a credentials.ServerCertificateConfig
-  cdef ServerCertificateConfig cert_config = None
-  if not user_data:
-    raise ValueError('internal error: user_data must be specified')
-  credentials = <ServerCredentials>user_data
-  if not credentials.initial_cert_config_fetched:
-    # C-core is asking for the initial cert config
-    credentials.initial_cert_config_fetched = True
-    cert_config = credentials.initial_cert_config._certificate_configuration
-  else:
-    user_cb = credentials.cert_config_fetcher
-    try:
-      cert_config_wrapper = user_cb()
-    except Exception:
-      _LOGGER.exception('Error fetching certificate config')
-      return GRPC_SSL_CERTIFICATE_CONFIG_RELOAD_FAIL
-    if cert_config_wrapper is None:
-      return GRPC_SSL_CERTIFICATE_CONFIG_RELOAD_UNCHANGED
-    elif not isinstance(
-        cert_config_wrapper, grpc.ServerCertificateConfiguration):
-      _LOGGER.error(
-          'Error fetching certificate configuration: certificate '
-          'configuration must be of type grpc.ServerCertificateConfiguration, '
-          'not %s' % type(cert_config_wrapper).__name__)
-      return GRPC_SSL_CERTIFICATE_CONFIG_RELOAD_FAIL
-    else:
-      cert_config = cert_config_wrapper._certificate_configuration
-  config[0] = <grpc_ssl_server_certificate_config*>cert_config.c_cert_config
-  # our caller will assume ownership of memory, so we have to recreate
-  # a copy of c_cert_config here
-  cert_config.c_cert_config = grpc_ssl_server_certificate_config_create(
-      cert_config.c_pem_root_certs, cert_config.c_ssl_pem_key_cert_pairs,
-      cert_config.c_ssl_pem_key_cert_pairs_count)
-  return GRPC_SSL_CERTIFICATE_CONFIG_RELOAD_NEW
-
 cdef class Server:
 
   def __cinit__(self, object arguments):