mirror of https://github.com/grpc/grpc.git
[cleanups] Remove `include/grpc/impl/codegen/grpc_types.h` (#31835)
* Remove `include/grpc/impl/codegen/grpc_types.h` * Automated change: Fix sanity tests * Fix typo * Automated change: Fix sanity testspull/31875/head
Cheng-Yu Chung
2 years ago
committed by
GitHub
parent
feda5031fa
commit
9a7e77318b
159 changed files with 989 additions and 942 deletions
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/*
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* |
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* Copyright 2015 gRPC authors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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* |
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*/ |
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#ifndef GRPC_IMPL_GRPC_TYPES_H |
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#define GRPC_IMPL_GRPC_TYPES_H |
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// IWYU pragma: private, include <grpc/grpc.h>
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#include <grpc/support/port_platform.h> |
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#include <stddef.h> |
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#include <grpc/impl/compression_types.h> |
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#include <grpc/slice.h> |
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#include <grpc/status.h> |
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#include <grpc/support/time.h> |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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typedef enum { |
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GRPC_BB_RAW |
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/** Future types may include GRPC_BB_PROTOBUF, etc. */ |
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} grpc_byte_buffer_type; |
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typedef struct grpc_byte_buffer { |
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void* reserved; |
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grpc_byte_buffer_type type; |
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union grpc_byte_buffer_data { |
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struct /* internal */ { |
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void* reserved[8]; |
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} reserved; |
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struct grpc_compressed_buffer { |
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grpc_compression_algorithm compression; |
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grpc_slice_buffer slice_buffer; |
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} raw; |
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} data; |
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} grpc_byte_buffer; |
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/** Completion Queues enable notification of the completion of
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* asynchronous actions. */ |
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typedef struct grpc_completion_queue grpc_completion_queue; |
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/** The Channel interface allows creation of Call objects. */ |
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typedef struct grpc_channel grpc_channel; |
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/** A server listens to some port and responds to request calls */ |
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typedef struct grpc_server grpc_server; |
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/** A Call represents an RPC. When created, it is in a configuration state
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allowing properties to be set until it is invoked. After invoke, the Call |
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can have messages written to it and read from it. */ |
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typedef struct grpc_call grpc_call; |
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/** The Socket Mutator interface allows changes on socket options */ |
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typedef struct grpc_socket_mutator grpc_socket_mutator; |
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/** The Socket Factory interface creates and binds sockets */ |
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typedef struct grpc_socket_factory grpc_socket_factory; |
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/** Type specifier for grpc_arg */ |
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typedef enum { |
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GRPC_ARG_STRING, |
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GRPC_ARG_INTEGER, |
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GRPC_ARG_POINTER |
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} grpc_arg_type; |
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typedef struct grpc_arg_pointer_vtable { |
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void* (*copy)(void* p); |
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void (*destroy)(void* p); |
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int (*cmp)(void* p, void* q); |
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} grpc_arg_pointer_vtable; |
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/** A single argument... each argument has a key and a value
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A note on naming keys: |
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Keys are namespaced into groups, usually grouped by library, and are |
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keys for module XYZ are named XYZ.key1, XYZ.key2, etc. Module names must |
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be restricted to the regex [A-Za-z][_A-Za-z0-9]{,15}. |
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Key names must be restricted to the regex [A-Za-z][_A-Za-z0-9]{,47}. |
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GRPC core library keys are prefixed by grpc. |
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Library authors are strongly encouraged to \#define symbolic constants for |
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their keys so that it's possible to change them in the future. */ |
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typedef struct { |
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grpc_arg_type type; |
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char* key; |
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union grpc_arg_value { |
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char* string; |
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int integer; |
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struct grpc_arg_pointer { |
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void* p; |
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const grpc_arg_pointer_vtable* vtable; |
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} pointer; |
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} value; |
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} grpc_arg; |
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/** An array of arguments that can be passed around.
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Used to set optional channel-level configuration. |
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These configuration options are modelled as key-value pairs as defined |
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by grpc_arg; keys are strings to allow easy backwards-compatible extension |
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by arbitrary parties. All evaluation is performed at channel creation |
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time (i.e. the keys and values in this structure need only live through the |
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creation invocation). |
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However, if one of the args has grpc_arg_type==GRPC_ARG_POINTER, then the |
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grpc_arg_pointer_vtable must live until the channel args are done being |
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used by core (i.e. when the object for use with which they were passed |
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is destroyed). |
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See the description of the \ref grpc_arg_keys "available args" for more |
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details. */ |
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typedef struct { |
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size_t num_args; |
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grpc_arg* args; |
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} grpc_channel_args; |
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/** \defgroup grpc_arg_keys
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* Channel argument keys. |
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* \{ |
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*/ |
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/** If non-zero, enable census for tracing and stats collection. */ |
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#define GRPC_ARG_ENABLE_CENSUS "grpc.census" |
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/** If non-zero, enable load reporting. */ |
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#define GRPC_ARG_ENABLE_LOAD_REPORTING "grpc.loadreporting" |
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/** Request that optional features default to off (regardless of what they
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usually default to) - to enable tight control over what gets enabled */ |
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#define GRPC_ARG_MINIMAL_STACK "grpc.minimal_stack" |
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/** Maximum number of concurrent incoming streams to allow on a http2
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connection. Int valued. */ |
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#define GRPC_ARG_MAX_CONCURRENT_STREAMS "grpc.max_concurrent_streams" |
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/** Maximum message length that the channel can receive. Int valued, bytes.
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-1 means unlimited. */ |
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#define GRPC_ARG_MAX_RECEIVE_MESSAGE_LENGTH "grpc.max_receive_message_length" |
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/** \deprecated For backward compatibility.
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* Use GRPC_ARG_MAX_RECEIVE_MESSAGE_LENGTH instead. */ |
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#define GRPC_ARG_MAX_MESSAGE_LENGTH GRPC_ARG_MAX_RECEIVE_MESSAGE_LENGTH |
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/** Maximum message length that the channel can send. Int valued, bytes.
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-1 means unlimited. */ |
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#define GRPC_ARG_MAX_SEND_MESSAGE_LENGTH "grpc.max_send_message_length" |
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/** Maximum time that a channel may have no outstanding rpcs, after which the
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* server will close the connection. Int valued, milliseconds. INT_MAX means |
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* unlimited. */ |
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#define GRPC_ARG_MAX_CONNECTION_IDLE_MS "grpc.max_connection_idle_ms" |
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/** Maximum time that a channel may exist. Int valued, milliseconds.
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* INT_MAX means unlimited. */ |
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#define GRPC_ARG_MAX_CONNECTION_AGE_MS "grpc.max_connection_age_ms" |
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/** Grace period after the channel reaches its max age. Int valued,
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milliseconds. INT_MAX means unlimited. */ |
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#define GRPC_ARG_MAX_CONNECTION_AGE_GRACE_MS "grpc.max_connection_age_grace_ms" |
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/** Timeout after the last RPC finishes on the client channel at which the
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* channel goes back into IDLE state. Int valued, milliseconds. INT_MAX means |
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* unlimited. The default value is 30 minutes and the min value is 1 second. */ |
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#define GRPC_ARG_CLIENT_IDLE_TIMEOUT_MS "grpc.client_idle_timeout_ms" |
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/** Enable/disable support for per-message compression. Defaults to 1, unless
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GRPC_ARG_MINIMAL_STACK is enabled, in which case it defaults to 0. */ |
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#define GRPC_ARG_ENABLE_PER_MESSAGE_COMPRESSION "grpc.per_message_compression" |
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/** Experimental Arg. Enable/disable support for per-message decompression.
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Defaults to 1. If disabled, decompression will not be performed and the |
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application will see the compressed message in the byte buffer. */ |
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#define GRPC_ARG_ENABLE_PER_MESSAGE_DECOMPRESSION \ |
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"grpc.per_message_decompression" |
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/** Enable/disable support for deadline checking. Defaults to 1, unless
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GRPC_ARG_MINIMAL_STACK is enabled, in which case it defaults to 0 */ |
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#define GRPC_ARG_ENABLE_DEADLINE_CHECKS "grpc.enable_deadline_checking" |
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/** Initial stream ID for http2 transports. Int valued. */ |
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#define GRPC_ARG_HTTP2_INITIAL_SEQUENCE_NUMBER \ |
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"grpc.http2.initial_sequence_number" |
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/** Amount to read ahead on individual streams. Defaults to 64kb, larger
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values can help throughput on high-latency connections. |
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NOTE: at some point we'd like to auto-tune this, and this parameter |
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will become a no-op. Int valued, bytes. */ |
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#define GRPC_ARG_HTTP2_STREAM_LOOKAHEAD_BYTES "grpc.http2.lookahead_bytes" |
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/** How much memory to use for hpack decoding. Int valued, bytes. */ |
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#define GRPC_ARG_HTTP2_HPACK_TABLE_SIZE_DECODER \ |
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"grpc.http2.hpack_table_size.decoder" |
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/** How much memory to use for hpack encoding. Int valued, bytes. */ |
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#define GRPC_ARG_HTTP2_HPACK_TABLE_SIZE_ENCODER \ |
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"grpc.http2.hpack_table_size.encoder" |
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/** How big a frame are we willing to receive via HTTP2.
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Min 16384, max 16777215. Larger values give lower CPU usage for large |
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messages, but more head of line blocking for small messages. */ |
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#define GRPC_ARG_HTTP2_MAX_FRAME_SIZE "grpc.http2.max_frame_size" |
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/** Should BDP probing be performed? */ |
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#define GRPC_ARG_HTTP2_BDP_PROBE "grpc.http2.bdp_probe" |
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/** (DEPRECATED) Does not have any effect.
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Earlier, this arg configured the minimum time between successive ping frames |
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without receiving any data/header frame, Int valued, milliseconds. This put |
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unnecessary constraints on the configuration of keepalive pings, |
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requiring users to set this channel arg along with |
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GRPC_ARG_KEEPALIVE_TIME_MS. This arg also limited the activity of the other |
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source of pings in gRPC Core - BDP pings, but BDP pings are only sent when |
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there is receive-side data activity, making this arg unuseful for BDP pings |
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too. */ |
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#define GRPC_ARG_HTTP2_MIN_SENT_PING_INTERVAL_WITHOUT_DATA_MS \ |
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"grpc.http2.min_time_between_pings_ms" |
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/** Minimum allowed time between a server receiving successive ping frames
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without sending any data/header frame. Int valued, milliseconds |
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*/ |
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#define GRPC_ARG_HTTP2_MIN_RECV_PING_INTERVAL_WITHOUT_DATA_MS \ |
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"grpc.http2.min_ping_interval_without_data_ms" |
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/** Channel arg to override the http2 :scheme header */ |
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#define GRPC_ARG_HTTP2_SCHEME "grpc.http2_scheme" |
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/** How many pings can the client send before needing to send a
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data/header frame? (0 indicates that an infinite number of |
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pings can be sent without sending a data frame or header frame) */ |
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#define GRPC_ARG_HTTP2_MAX_PINGS_WITHOUT_DATA \ |
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"grpc.http2.max_pings_without_data" |
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/** How many misbehaving pings the server can bear before sending goaway and
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closing the transport? (0 indicates that the server can bear an infinite |
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number of misbehaving pings) */ |
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#define GRPC_ARG_HTTP2_MAX_PING_STRIKES "grpc.http2.max_ping_strikes" |
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/** How much data are we willing to queue up per stream if
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GRPC_WRITE_BUFFER_HINT is set? This is an upper bound */ |
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#define GRPC_ARG_HTTP2_WRITE_BUFFER_SIZE "grpc.http2.write_buffer_size" |
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/** Should we allow receipt of true-binary data on http2 connections?
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Defaults to on (1) */ |
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#define GRPC_ARG_HTTP2_ENABLE_TRUE_BINARY "grpc.http2.true_binary" |
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/** An experimental channel arg which determines whether the preferred crypto
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* frame size http2 setting sent to the peer at startup. If set to 0 (false |
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* - default), the preferred frame size is not sent to the peer. Otherwise it |
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* sends a default preferred crypto frame size value of 4GB to the peer at |
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* the startup of each connection. */ |
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#define GRPC_ARG_EXPERIMENTAL_HTTP2_PREFERRED_CRYPTO_FRAME_SIZE \ |
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"grpc.experimental.http2.enable_preferred_frame_size" |
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/** After a duration of this time the client/server pings its peer to see if the
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transport is still alive. Int valued, milliseconds. */ |
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#define GRPC_ARG_KEEPALIVE_TIME_MS "grpc.keepalive_time_ms" |
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/** After waiting for a duration of this time, if the keepalive ping sender does
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not receive the ping ack, it will close the transport. Int valued, |
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milliseconds. */ |
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#define GRPC_ARG_KEEPALIVE_TIMEOUT_MS "grpc.keepalive_timeout_ms" |
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/** Is it permissible to send keepalive pings from the client without any
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outstanding streams. Int valued, 0(false)/1(true). */ |
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#define GRPC_ARG_KEEPALIVE_PERMIT_WITHOUT_CALLS \ |
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"grpc.keepalive_permit_without_calls" |
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/** Default authority to pass if none specified on call construction. A string.
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* */ |
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#define GRPC_ARG_DEFAULT_AUTHORITY "grpc.default_authority" |
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/** Primary user agent: goes at the start of the user-agent metadata
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sent on each request. A string. */ |
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#define GRPC_ARG_PRIMARY_USER_AGENT_STRING "grpc.primary_user_agent" |
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/** Secondary user agent: goes at the end of the user-agent metadata
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sent on each request. A string. */ |
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#define GRPC_ARG_SECONDARY_USER_AGENT_STRING "grpc.secondary_user_agent" |
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/** The minimum time between subsequent connection attempts, in ms */ |
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#define GRPC_ARG_MIN_RECONNECT_BACKOFF_MS "grpc.min_reconnect_backoff_ms" |
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/** The maximum time between subsequent connection attempts, in ms */ |
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#define GRPC_ARG_MAX_RECONNECT_BACKOFF_MS "grpc.max_reconnect_backoff_ms" |
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/** The time between the first and second connection attempts, in ms */ |
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#define GRPC_ARG_INITIAL_RECONNECT_BACKOFF_MS \ |
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"grpc.initial_reconnect_backoff_ms" |
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/** Minimum amount of time between DNS resolutions, in ms */ |
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#define GRPC_ARG_DNS_MIN_TIME_BETWEEN_RESOLUTIONS_MS \ |
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"grpc.dns_min_time_between_resolutions_ms" |
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/** The timeout used on servers for finishing handshaking on an incoming
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connection. Defaults to 120 seconds. */ |
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#define GRPC_ARG_SERVER_HANDSHAKE_TIMEOUT_MS "grpc.server_handshake_timeout_ms" |
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/** This *should* be used for testing only.
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The caller of the secure_channel_create functions may override the target |
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name used for SSL host name checking using this channel argument which is of |
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type \a GRPC_ARG_STRING. If this argument is not specified, the name used |
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for SSL host name checking will be the target parameter (assuming that the |
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secure channel is an SSL channel). If this parameter is specified and the |
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underlying is not an SSL channel, it will just be ignored. */ |
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#define GRPC_SSL_TARGET_NAME_OVERRIDE_ARG "grpc.ssl_target_name_override" |
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/** If non-zero, a pointer to a session cache (a pointer of type
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grpc_ssl_session_cache*). (use grpc_ssl_session_cache_arg_vtable() to fetch |
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an appropriate pointer arg vtable) */ |
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#define GRPC_SSL_SESSION_CACHE_ARG "grpc.ssl_session_cache" |
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/** If non-zero, it will determine the maximum frame size used by TSI's frame
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* protector. |
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*/ |
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#define GRPC_ARG_TSI_MAX_FRAME_SIZE "grpc.tsi.max_frame_size" |
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/** Maximum metadata size, in bytes. Note this limit applies to the max sum of
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all metadata key-value entries in a batch of headers. */ |
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#define GRPC_ARG_MAX_METADATA_SIZE "grpc.max_metadata_size" |
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/** If non-zero, allow the use of SO_REUSEPORT if it's available (default 1) */ |
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#define GRPC_ARG_ALLOW_REUSEPORT "grpc.so_reuseport" |
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/** If non-zero, a pointer to a buffer pool (a pointer of type
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* grpc_resource_quota*). (use grpc_resource_quota_arg_vtable() to fetch an |
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* appropriate pointer arg vtable) */ |
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#define GRPC_ARG_RESOURCE_QUOTA "grpc.resource_quota" |
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/** If non-zero, expand wildcard addresses to a list of local addresses. */ |
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#define GRPC_ARG_EXPAND_WILDCARD_ADDRS "grpc.expand_wildcard_addrs" |
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/** Service config data in JSON form.
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This value will be ignored if the name resolver returns a service config. */ |
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#define GRPC_ARG_SERVICE_CONFIG "grpc.service_config" |
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/** Disable looking up the service config via the name resolver. */ |
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#define GRPC_ARG_SERVICE_CONFIG_DISABLE_RESOLUTION \ |
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"grpc.service_config_disable_resolution" |
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/** LB policy name. */ |
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#define GRPC_ARG_LB_POLICY_NAME "grpc.lb_policy_name" |
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/** Cap for ring size in the ring_hash LB policy. The min and max ring size
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values set in the LB policy config will be capped to this value. |
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Default is 4096. */ |
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#define GRPC_ARG_RING_HASH_LB_RING_SIZE_CAP "grpc.lb.ring_hash.ring_size_cap" |
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/** The grpc_socket_mutator instance that set the socket options. A pointer. */ |
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#define GRPC_ARG_SOCKET_MUTATOR "grpc.socket_mutator" |
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/** The grpc_socket_factory instance to create and bind sockets. A pointer. */ |
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#define GRPC_ARG_SOCKET_FACTORY "grpc.socket_factory" |
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/** The maximum amount of memory used by trace events per channel trace node.
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* Once the maximum is reached, subsequent events will evict the oldest events |
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* from the buffer. The unit for this knob is bytes. Setting it to zero causes |
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* channel tracing to be disabled. */ |
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#define GRPC_ARG_MAX_CHANNEL_TRACE_EVENT_MEMORY_PER_NODE \ |
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"grpc.max_channel_trace_event_memory_per_node" |
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/** If non-zero, gRPC library will track stats and information at at per channel
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* level. Disabling channelz naturally disables channel tracing. The default |
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* is for channelz to be enabled. */ |
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#define GRPC_ARG_ENABLE_CHANNELZ "grpc.enable_channelz" |
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/** If non-zero, Cronet transport will coalesce packets to fewer frames
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* when possible. */ |
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#define GRPC_ARG_USE_CRONET_PACKET_COALESCING \ |
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"grpc.use_cronet_packet_coalescing" |
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/** Channel arg (integer) setting how large a slice to try and read from the
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wire each time recvmsg (or equivalent) is called **/ |
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#define GRPC_ARG_TCP_READ_CHUNK_SIZE "grpc.experimental.tcp_read_chunk_size" |
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/** Note this is not a "channel arg" key. This is the default slice size to use
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* when trying to read from the wire if the GRPC_ARG_TCP_READ_CHUNK_SIZE |
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* channel arg is unspecified. */ |
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#define GRPC_TCP_DEFAULT_READ_SLICE_SIZE 8192 |
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#define GRPC_ARG_TCP_MIN_READ_CHUNK_SIZE \ |
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"grpc.experimental.tcp_min_read_chunk_size" |
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#define GRPC_ARG_TCP_MAX_READ_CHUNK_SIZE \ |
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"grpc.experimental.tcp_max_read_chunk_size" |
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/* TCP TX Zerocopy enable state: zero is disabled, non-zero is enabled. By
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default, it is disabled. */ |
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#define GRPC_ARG_TCP_TX_ZEROCOPY_ENABLED \ |
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"grpc.experimental.tcp_tx_zerocopy_enabled" |
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/* TCP TX Zerocopy send threshold: only zerocopy if >= this many bytes sent. By
|
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default, this is set to 16KB. */ |
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#define GRPC_ARG_TCP_TX_ZEROCOPY_SEND_BYTES_THRESHOLD \ |
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"grpc.experimental.tcp_tx_zerocopy_send_bytes_threshold" |
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/* TCP TX Zerocopy max simultaneous sends: limit for maximum number of pending
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calls to tcp_write() using zerocopy. A tcp_write() is considered pending |
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until the kernel performs the zerocopy-done callback for all sendmsg() calls |
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issued by the tcp_write(). By default, this is set to 4. */ |
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#define GRPC_ARG_TCP_TX_ZEROCOPY_MAX_SIMULT_SENDS \ |
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"grpc.experimental.tcp_tx_zerocopy_max_simultaneous_sends" |
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/* Timeout in milliseconds to use for calls to the grpclb load balancer.
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If 0 or unset, the balancer calls will have no deadline. */ |
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#define GRPC_ARG_GRPCLB_CALL_TIMEOUT_MS "grpc.grpclb_call_timeout_ms" |
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/* Specifies the xDS bootstrap config as a JSON string.
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FOR TESTING PURPOSES ONLY -- DO NOT USE IN PRODUCTION. |
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This option allows controlling the bootstrap configuration on a |
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per-channel basis, which is useful in tests. However, this results |
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in having a separate xDS client instance per channel rather than |
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using the global instance, which is not the intended way to use xDS. |
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Currently, this will (a) add unnecessary load on the xDS server and |
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(b) break use of CSDS, and there may be additional side effects in |
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the future. */ |
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#define GRPC_ARG_TEST_ONLY_DO_NOT_USE_IN_PROD_XDS_BOOTSTRAP_CONFIG \ |
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"grpc.TEST_ONLY_DO_NOT_USE_IN_PROD.xds_bootstrap_config" |
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/* Timeout in milliseconds to wait for the serverlist from the grpclb load
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balancer before using fallback backend addresses from the resolver. |
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If 0, enter fallback mode immediately. Default value is 10000. */ |
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#define GRPC_ARG_GRPCLB_FALLBACK_TIMEOUT_MS "grpc.grpclb_fallback_timeout_ms" |
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/* Experimental Arg. Channel args to be used for the control-plane channel
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* created to the grpclb load balancers. This is a pointer arg whose value is a |
||||
* grpc_channel_args object. If unset, most channel args from the parent channel |
||||
* will be propagated to the grpclb channel. */ |
||||
#define GRPC_ARG_EXPERIMENTAL_GRPCLB_CHANNEL_ARGS \ |
||||
"grpc.experimental.grpclb_channel_args" |
||||
/* Timeout in milliseconds to wait for the child of a specific priority to
|
||||
complete its initial connection attempt before the priority LB policy fails |
||||
over to the next priority. Default value is 10 seconds. */ |
||||
#define GRPC_ARG_PRIORITY_FAILOVER_TIMEOUT_MS \ |
||||
"grpc.priority_failover_timeout_ms" |
||||
/** If non-zero, grpc server's cronet compression workaround will be enabled */ |
||||
#define GRPC_ARG_WORKAROUND_CRONET_COMPRESSION \ |
||||
"grpc.workaround.cronet_compression" |
||||
/** String defining the optimization target for a channel.
|
||||
Can be: "latency" - attempt to minimize latency at the cost of throughput |
||||
"blend" - try to balance latency and throughput |
||||
"throughput" - attempt to maximize throughput at the expense of |
||||
latency |
||||
Defaults to "blend". In the current implementation "blend" is equivalent to |
||||
"latency". */ |
||||
#define GRPC_ARG_OPTIMIZATION_TARGET "grpc.optimization_target" |
||||
/** Enables retry functionality. Defaults to true. When enabled,
|
||||
transparent retries will be performed as appropriate, and configurable |
||||
retries are enabled when they are configured via the service config. |
||||
For details, see: |
||||
https://github.com/grpc/proposal/blob/master/A6-client-retries.md
|
||||
NOTE: Hedging functionality is not yet implemented, so those |
||||
fields in the service config will currently be ignored. See |
||||
also the GRPC_ARG_EXPERIMENTAL_ENABLE_HEDGING arg below. |
||||
*/ |
||||
#define GRPC_ARG_ENABLE_RETRIES "grpc.enable_retries" |
||||
/** Enables hedging functionality, as described in:
|
||||
https://github.com/grpc/proposal/blob/master/A6-client-retries.md
|
||||
Default is currently false, since this functionality is not yet |
||||
fully implemented. |
||||
NOTE: This channel arg is experimental and will eventually be removed. |
||||
Once hedging functionality has been implemented and proves stable, |
||||
this arg will be removed, and the hedging functionality will |
||||
be enabled via the GRPC_ARG_ENABLE_RETRIES arg above. */ |
||||
#define GRPC_ARG_EXPERIMENTAL_ENABLE_HEDGING "grpc.experimental.enable_hedging" |
||||
/** Per-RPC retry buffer size, in bytes. Default is 256 KiB. */ |
||||
#define GRPC_ARG_PER_RPC_RETRY_BUFFER_SIZE "grpc.per_rpc_retry_buffer_size" |
||||
/** Channel arg that carries the bridged objective c object for custom metrics
|
||||
* logging filter. */ |
||||
#define GRPC_ARG_MOBILE_LOG_CONTEXT "grpc.mobile_log_context" |
||||
/** If non-zero, client authority filter is disabled for the channel */ |
||||
#define GRPC_ARG_DISABLE_CLIENT_AUTHORITY_FILTER \ |
||||
"grpc.disable_client_authority_filter" |
||||
/** If set to zero, disables use of http proxies. Enabled by default. */ |
||||
#define GRPC_ARG_ENABLE_HTTP_PROXY "grpc.enable_http_proxy" |
||||
/** Channel arg to set http proxy per channel. If set, the channel arg
|
||||
* value will be preferred over the environment variable settings. */ |
||||
#define GRPC_ARG_HTTP_PROXY "grpc.http_proxy" |
||||
/** If set to non zero, surfaces the user agent string to the server. User
|
||||
agent is surfaced by default. */ |
||||
#define GRPC_ARG_SURFACE_USER_AGENT "grpc.surface_user_agent" |
||||
/** If set, inhibits health checking (which may be enabled via the
|
||||
* service config.) */ |
||||
#define GRPC_ARG_INHIBIT_HEALTH_CHECKING "grpc.inhibit_health_checking" |
||||
/** If enabled, the channel's DNS resolver queries for SRV records.
|
||||
* This is useful only when using the "grpclb" load balancing policy, |
||||
* as described in the following documents: |
||||
* https://github.com/grpc/proposal/blob/master/A5-grpclb-in-dns.md
|
||||
* https://github.com/grpc/proposal/blob/master/A24-lb-policy-config.md
|
||||
* https://github.com/grpc/proposal/blob/master/A26-grpclb-selection.md
|
||||
* Note that this works only with the "ares" DNS resolver; it isn't supported |
||||
* by the "native" DNS resolver. */ |
||||
#define GRPC_ARG_DNS_ENABLE_SRV_QUERIES "grpc.dns_enable_srv_queries" |
||||
/** If set, determines an upper bound on the number of milliseconds that the
|
||||
* c-ares based DNS resolver will wait on queries before cancelling them. |
||||
* The default value is 120,000. Setting this to "0" will disable the |
||||
* overall timeout entirely. Note that this doesn't include internal c-ares |
||||
* timeouts/backoff/retry logic, and so the actual DNS resolution may time out |
||||
* sooner than the value specified here. */ |
||||
#define GRPC_ARG_DNS_ARES_QUERY_TIMEOUT_MS "grpc.dns_ares_query_timeout" |
||||
/** If set, uses a local subchannel pool within the channel. Otherwise, uses the
|
||||
* global subchannel pool. */ |
||||
#define GRPC_ARG_USE_LOCAL_SUBCHANNEL_POOL "grpc.use_local_subchannel_pool" |
||||
/** gRPC Objective-C channel pooling domain string. */ |
||||
#define GRPC_ARG_CHANNEL_POOL_DOMAIN "grpc.channel_pooling_domain" |
||||
/** gRPC Objective-C channel pooling id. */ |
||||
#define GRPC_ARG_CHANNEL_ID "grpc.channel_id" |
||||
/** Channel argument for grpc_authorization_policy_provider. If present, enables
|
||||
gRPC authorization check. */ |
||||
#define GRPC_ARG_AUTHORIZATION_POLICY_PROVIDER \ |
||||
"grpc.authorization_policy_provider" |
||||
/** EXPERIMENTAL. Updates to a server's configuration from a config fetcher (for
|
||||
* example, listener updates from xDS) cause all older connections to be |
||||
* gracefully shut down (i.e., "drained") with a grace period configured by this |
||||
* channel arg. Int valued, milliseconds. Defaults to 10 minutes.*/ |
||||
#define GRPC_ARG_SERVER_CONFIG_CHANGE_DRAIN_GRACE_TIME_MS \ |
||||
"grpc.experimental.server_config_change_drain_grace_time_ms" |
||||
/** \} */ |
||||
|
||||
/** Result of a grpc call. If the caller satisfies the prerequisites of a
|
||||
particular operation, the grpc_call_error returned will be GRPC_CALL_OK. |
||||
Receiving any other value listed here is an indication of a bug in the |
||||
caller. */ |
||||
typedef enum grpc_call_error { |
||||
/** everything went ok */ |
||||
GRPC_CALL_OK = 0, |
||||
/** something failed, we don't know what */ |
||||
GRPC_CALL_ERROR, |
||||
/** this method is not available on the server */ |
||||
GRPC_CALL_ERROR_NOT_ON_SERVER, |
||||
/** this method is not available on the client */ |
||||
GRPC_CALL_ERROR_NOT_ON_CLIENT, |
||||
/** this method must be called before server_accept */ |
||||
GRPC_CALL_ERROR_ALREADY_ACCEPTED, |
||||
/** this method must be called before invoke */ |
||||
GRPC_CALL_ERROR_ALREADY_INVOKED, |
||||
/** this method must be called after invoke */ |
||||
GRPC_CALL_ERROR_NOT_INVOKED, |
||||
/** this call is already finished
|
||||
(writes_done or write_status has already been called) */ |
||||
GRPC_CALL_ERROR_ALREADY_FINISHED, |
||||
/** there is already an outstanding read/write operation on the call */ |
||||
GRPC_CALL_ERROR_TOO_MANY_OPERATIONS, |
||||
/** the flags value was illegal for this call */ |
||||
GRPC_CALL_ERROR_INVALID_FLAGS, |
||||
/** invalid metadata was passed to this call */ |
||||
GRPC_CALL_ERROR_INVALID_METADATA, |
||||
/** invalid message was passed to this call */ |
||||
GRPC_CALL_ERROR_INVALID_MESSAGE, |
||||
/** completion queue for notification has not been registered
|
||||
* with the server */ |
||||
GRPC_CALL_ERROR_NOT_SERVER_COMPLETION_QUEUE, |
||||
/** this batch of operations leads to more operations than allowed */ |
||||
GRPC_CALL_ERROR_BATCH_TOO_BIG, |
||||
/** payload type requested is not the type registered */ |
||||
GRPC_CALL_ERROR_PAYLOAD_TYPE_MISMATCH, |
||||
/** completion queue has been shutdown */ |
||||
GRPC_CALL_ERROR_COMPLETION_QUEUE_SHUTDOWN |
||||
} grpc_call_error; |
||||
|
||||
/** Default send/receive message size limits in bytes. -1 for unlimited. */ |
||||
/** TODO(roth) Make this match the default receive limit after next release */ |
||||
#define GRPC_DEFAULT_MAX_SEND_MESSAGE_LENGTH (-1) |
||||
#define GRPC_DEFAULT_MAX_RECV_MESSAGE_LENGTH (4 * 1024 * 1024) |
||||
|
||||
/** Write Flags: */ |
||||
/** Hint that the write may be buffered and need not go out on the wire
|
||||
immediately. GRPC is free to buffer the message until the next non-buffered |
||||
write, or until writes_done, but it need not buffer completely or at all. */ |
||||
#define GRPC_WRITE_BUFFER_HINT (0x00000001u) |
||||
/** Force compression to be disabled for a particular write
|
||||
(start_write/add_metadata). Illegal on invoke/accept. */ |
||||
#define GRPC_WRITE_NO_COMPRESS (0x00000002u) |
||||
/** Force this message to be written to the socket before completing it */ |
||||
#define GRPC_WRITE_THROUGH (0x00000004u) |
||||
/** Mask of all valid flags. */ |
||||
#define GRPC_WRITE_USED_MASK \ |
||||
(GRPC_WRITE_BUFFER_HINT | GRPC_WRITE_NO_COMPRESS | GRPC_WRITE_THROUGH) |
||||
|
||||
/** Initial metadata flags */ |
||||
/** These flags are to be passed to the `grpc_op::flags` field */ |
||||
/** Signal that the call should not return UNAVAILABLE before it has started */ |
||||
#define GRPC_INITIAL_METADATA_WAIT_FOR_READY (0x00000020u) |
||||
/** Signal that GRPC_INITIAL_METADATA_WAIT_FOR_READY was explicitly set
|
||||
by the calling application. */ |
||||
#define GRPC_INITIAL_METADATA_WAIT_FOR_READY_EXPLICITLY_SET (0x00000080u) |
||||
|
||||
/** Mask of all valid flags */ |
||||
#define GRPC_INITIAL_METADATA_USED_MASK \ |
||||
(GRPC_INITIAL_METADATA_WAIT_FOR_READY_EXPLICITLY_SET | \
|
||||
GRPC_INITIAL_METADATA_WAIT_FOR_READY | GRPC_WRITE_THROUGH) |
||||
|
||||
/** A single metadata element */ |
||||
typedef struct grpc_metadata { |
||||
/** the key, value values are expected to line up with grpc_mdelem: if
|
||||
changing them, update metadata.h at the same time. */ |
||||
grpc_slice key; |
||||
grpc_slice value; |
||||
|
||||
/** The following fields are reserved for grpc internal use.
|
||||
There is no need to initialize them, and they will be set to garbage |
||||
during calls to grpc. */ |
||||
struct /* internal */ { |
||||
void* obfuscated[4]; |
||||
} internal_data; |
||||
} grpc_metadata; |
||||
|
||||
/** The type of completion (for grpc_event) */ |
||||
typedef enum grpc_completion_type { |
||||
/** Shutting down */ |
||||
GRPC_QUEUE_SHUTDOWN, |
||||
/** No event before timeout */ |
||||
GRPC_QUEUE_TIMEOUT, |
||||
/** Operation completion */ |
||||
GRPC_OP_COMPLETE |
||||
} grpc_completion_type; |
||||
|
||||
/** The result of an operation.
|
||||
|
||||
Returned by a completion queue when the operation started with tag. */ |
||||
typedef struct grpc_event { |
||||
/** The type of the completion. */ |
||||
grpc_completion_type type; |
||||
/** If the grpc_completion_type is GRPC_OP_COMPLETE, this field indicates
|
||||
whether the operation was successful or not; 0 in case of failure and |
||||
non-zero in case of success. |
||||
If grpc_completion_type is GRPC_QUEUE_SHUTDOWN or GRPC_QUEUE_TIMEOUT, this |
||||
field is guaranteed to be 0 */ |
||||
int success; |
||||
/** The tag passed to grpc_call_start_batch etc to start this operation.
|
||||
*Only* GRPC_OP_COMPLETE has a tag. For all other grpc_completion_type |
||||
values, tag is uninitialized. */ |
||||
void* tag; |
||||
} grpc_event; |
||||
|
||||
typedef struct { |
||||
size_t count; |
||||
size_t capacity; |
||||
grpc_metadata* metadata; |
||||
} grpc_metadata_array; |
||||
|
||||
typedef struct { |
||||
grpc_slice method; |
||||
grpc_slice host; |
||||
gpr_timespec deadline; |
||||
} grpc_call_details; |
||||
|
||||
typedef enum { |
||||
/** Send initial metadata: one and only one instance MUST be sent for each
|
||||
call, unless the call was cancelled - in which case this can be skipped. |
||||
This op completes after all bytes of metadata have been accepted by |
||||
outgoing flow control. */ |
||||
GRPC_OP_SEND_INITIAL_METADATA = 0, |
||||
/** Send a message: 0 or more of these operations can occur for each call.
|
||||
This op completes after all bytes for the message have been accepted by |
||||
outgoing flow control. */ |
||||
GRPC_OP_SEND_MESSAGE, |
||||
/** Send a close from the client: one and only one instance MUST be sent from
|
||||
the client, unless the call was cancelled - in which case this can be |
||||
skipped. This op completes after all bytes for the call |
||||
(including the close) have passed outgoing flow control. */ |
||||
GRPC_OP_SEND_CLOSE_FROM_CLIENT, |
||||
/** Send status from the server: one and only one instance MUST be sent from
|
||||
the server unless the call was cancelled - in which case this can be |
||||
skipped. This op completes after all bytes for the call |
||||
(including the status) have passed outgoing flow control. */ |
||||
GRPC_OP_SEND_STATUS_FROM_SERVER, |
||||
/** Receive initial metadata: one and only one MUST be made on the client,
|
||||
must not be made on the server. |
||||
This op completes after all initial metadata has been read from the |
||||
peer. */ |
||||
GRPC_OP_RECV_INITIAL_METADATA, |
||||
/** Receive a message: 0 or more of these operations can occur for each call.
|
||||
This op completes after all bytes of the received message have been |
||||
read, or after a half-close has been received on this call. */ |
||||
GRPC_OP_RECV_MESSAGE, |
||||
/** Receive status on the client: one and only one must be made on the client.
|
||||
This operation always succeeds, meaning ops paired with this operation |
||||
will also appear to succeed, even though they may not have. In that case |
||||
the status will indicate some failure. |
||||
This op completes after all activity on the call has completed. */ |
||||
GRPC_OP_RECV_STATUS_ON_CLIENT, |
||||
/** Receive close on the server: one and only one must be made on the
|
||||
server. This op completes after the close has been received by the |
||||
server. This operation always succeeds, meaning ops paired with |
||||
this operation will also appear to succeed, even though they may not |
||||
have. */ |
||||
GRPC_OP_RECV_CLOSE_ON_SERVER |
||||
} grpc_op_type; |
||||
|
||||
struct grpc_byte_buffer; |
||||
|
||||
/** Operation data: one field for each op type (except SEND_CLOSE_FROM_CLIENT
|
||||
which has no arguments) */ |
||||
typedef struct grpc_op { |
||||
/** Operation type, as defined by grpc_op_type */ |
||||
grpc_op_type op; |
||||
/** Write flags bitset for grpc_begin_messages */ |
||||
uint32_t flags; |
||||
/** Reserved for future usage */ |
||||
void* reserved; |
||||
union grpc_op_data { |
||||
/** Reserved for future usage */ |
||||
struct /* internal */ { |
||||
void* reserved[8]; |
||||
} reserved; |
||||
struct grpc_op_send_initial_metadata { |
||||
size_t count; |
||||
grpc_metadata* metadata; |
||||
/** If \a is_set, \a compression_level will be used for the call.
|
||||
* Otherwise, \a compression_level won't be considered */ |
||||
struct grpc_op_send_initial_metadata_maybe_compression_level { |
||||
uint8_t is_set; |
||||
grpc_compression_level level; |
||||
} maybe_compression_level; |
||||
} send_initial_metadata; |
||||
struct grpc_op_send_message { |
||||
/** This op takes ownership of the slices in send_message. After
|
||||
* a call completes, the contents of send_message are not guaranteed |
||||
* and likely empty. The original owner should still call |
||||
* grpc_byte_buffer_destroy() on this object however. |
||||
*/ |
||||
struct grpc_byte_buffer* send_message; |
||||
} send_message; |
||||
struct grpc_op_send_status_from_server { |
||||
size_t trailing_metadata_count; |
||||
grpc_metadata* trailing_metadata; |
||||
grpc_status_code status; |
||||
/** optional: set to NULL if no details need sending, non-NULL if they do
|
||||
* pointer will not be retained past the start_batch call |
||||
*/ |
||||
grpc_slice* status_details; |
||||
} send_status_from_server; |
||||
/** ownership of the array is with the caller, but ownership of the elements
|
||||
stays with the call object (ie key, value members are owned by the call |
||||
object, recv_initial_metadata->array is owned by the caller). |
||||
After the operation completes, call grpc_metadata_array_destroy on this |
||||
value, or reuse it in a future op. */ |
||||
struct grpc_op_recv_initial_metadata { |
||||
grpc_metadata_array* recv_initial_metadata; |
||||
} recv_initial_metadata; |
||||
/** ownership of the byte buffer is moved to the caller; the caller must
|
||||
call grpc_byte_buffer_destroy on this value, or reuse it in a future op. |
||||
The returned byte buffer will be NULL if trailing metadata was |
||||
received instead of a message. |
||||
*/ |
||||
struct grpc_op_recv_message { |
||||
struct grpc_byte_buffer** recv_message; |
||||
} recv_message; |
||||
struct grpc_op_recv_status_on_client { |
||||
/** ownership of the array is with the caller, but ownership of the
|
||||
elements stays with the call object (ie key, value members are owned |
||||
by the call object, trailing_metadata->array is owned by the caller). |
||||
After the operation completes, call grpc_metadata_array_destroy on |
||||
this value, or reuse it in a future op. */ |
||||
grpc_metadata_array* trailing_metadata; |
||||
grpc_status_code* status; |
||||
grpc_slice* status_details; |
||||
/** If this is not nullptr, it will be populated with the full fidelity
|
||||
* error string for debugging purposes. The application is responsible |
||||
* for freeing the data by using gpr_free(). */ |
||||
const char** error_string; |
||||
} recv_status_on_client; |
||||
struct grpc_op_recv_close_on_server { |
||||
/** out argument, set to 1 if the call failed at the server for
|
||||
a reason other than a non-OK status (cancel, deadline |
||||
exceeded, network failure, etc.), 0 otherwise (RPC processing ran to |
||||
completion and was able to provide any status from the server) */ |
||||
int* cancelled; |
||||
} recv_close_on_server; |
||||
} data; |
||||
} grpc_op; |
||||
|
||||
/** Information requested from the channel. */ |
||||
typedef struct { |
||||
/** If non-NULL, will be set to point to a string indicating the LB
|
||||
* policy name. Caller takes ownership. */ |
||||
char** lb_policy_name; |
||||
/** If non-NULL, will be set to point to a string containing the
|
||||
* service config used by the channel in JSON form. */ |
||||
char** service_config_json; |
||||
} grpc_channel_info; |
||||
|
||||
typedef struct grpc_resource_quota grpc_resource_quota; |
||||
|
||||
/** Completion queues internally MAY maintain a set of file descriptors in a
|
||||
structure called 'pollset'. This enum specifies if a completion queue has an |
||||
associated pollset and any restrictions on the type of file descriptors that |
||||
can be present in the pollset. |
||||
|
||||
I/O progress can only be made when grpc_completion_queue_next() or |
||||
grpc_completion_queue_pluck() are called on the completion queue (unless the |
||||
grpc_cq_polling_type is GRPC_CQ_NON_POLLING) and hence it is very important |
||||
to actively call these APIs */ |
||||
typedef enum { |
||||
/** The completion queue will have an associated pollset and there is no
|
||||
restriction on the type of file descriptors the pollset may contain */ |
||||
GRPC_CQ_DEFAULT_POLLING, |
||||
|
||||
/** Similar to GRPC_CQ_DEFAULT_POLLING except that the completion queues will
|
||||
not contain any 'listening file descriptors' (i.e file descriptors used to |
||||
listen to incoming channels) */ |
||||
GRPC_CQ_NON_LISTENING, |
||||
|
||||
/** The completion queue will not have an associated pollset. Note that
|
||||
grpc_completion_queue_next() or grpc_completion_queue_pluck() MUST still |
||||
be called to pop events from the completion queue; it is not required to |
||||
call them actively to make I/O progress */ |
||||
GRPC_CQ_NON_POLLING |
||||
} grpc_cq_polling_type; |
||||
|
||||
/** Specifies the type of APIs to use to pop events from the completion queue */ |
||||
typedef enum { |
||||
/** Events are popped out by calling grpc_completion_queue_next() API ONLY */ |
||||
GRPC_CQ_NEXT, |
||||
|
||||
/** Events are popped out by calling grpc_completion_queue_pluck() API ONLY*/ |
||||
GRPC_CQ_PLUCK, |
||||
|
||||
/** Events trigger a callback specified as the tag */ |
||||
GRPC_CQ_CALLBACK |
||||
} grpc_cq_completion_type; |
||||
|
||||
/** Specifies an interface class to be used as a tag for callback-based
|
||||
* completion queues. This can be used directly, as the first element of a |
||||
* struct in C, or as a base class in C++. Its "run" value should be assigned to |
||||
* some non-member function, such as a static method. */ |
||||
typedef struct grpc_completion_queue_functor { |
||||
/** The run member specifies a function that will be called when this
|
||||
tag is extracted from the completion queue. Its arguments will be a |
||||
pointer to this functor and a boolean that indicates whether the |
||||
operation succeeded (non-zero) or failed (zero) */ |
||||
void (*functor_run)(struct grpc_completion_queue_functor*, int); |
||||
|
||||
/** The inlineable member specifies whether this functor can be run inline.
|
||||
This should only be used for trivial internally-defined functors. */ |
||||
int inlineable; |
||||
|
||||
/** The following fields are not API. They are meant for internal use. */ |
||||
int internal_success; |
||||
struct grpc_completion_queue_functor* internal_next; |
||||
} grpc_completion_queue_functor; |
||||
|
||||
#define GRPC_CQ_CURRENT_VERSION 2 |
||||
#define GRPC_CQ_VERSION_MINIMUM_FOR_CALLBACKABLE 2 |
||||
typedef struct grpc_completion_queue_attributes { |
||||
/** The version number of this structure. More fields might be added to this
|
||||
structure in future. */ |
||||
int version; /** Set to GRPC_CQ_CURRENT_VERSION */ |
||||
|
||||
grpc_cq_completion_type cq_completion_type; |
||||
|
||||
grpc_cq_polling_type cq_polling_type; |
||||
|
||||
/* END OF VERSION 1 CQ ATTRIBUTES */ |
||||
|
||||
/* START OF VERSION 2 CQ ATTRIBUTES */ |
||||
/** When creating a callbackable CQ, pass in a functor to get invoked when
|
||||
* shutdown is complete */ |
||||
grpc_completion_queue_functor* cq_shutdown_cb; |
||||
|
||||
/* END OF VERSION 2 CQ ATTRIBUTES */ |
||||
} grpc_completion_queue_attributes; |
||||
|
||||
/** The completion queue factory structure is opaque to the callers of grpc */ |
||||
typedef struct grpc_completion_queue_factory grpc_completion_queue_factory; |
||||
|
||||
#ifdef __cplusplus |
||||
} |
||||
#endif |
||||
|
||||
#endif /* GRPC_IMPL_GRPC_TYPES_H */ |
||||
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