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/*
*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef GRPC_CORE_LIB_IOMGR_SOCKET_MUTATOR_H
#define GRPC_CORE_LIB_IOMGR_SOCKET_MUTATOR_H
#include <grpc/support/port_platform.h>
#include <grpc/impl/codegen/grpc_types.h>
#include <grpc/support/sync.h>
#include <stdbool.h>
/** The virtual table of grpc_socket_mutator */
typedef struct {
/** Mutates the socket options of \a fd */
bool (*mutate_fd)(int fd, grpc_socket_mutator* mutator);
/** Compare socket mutator \a a and \a b */
int (*compare)(grpc_socket_mutator* a, grpc_socket_mutator* b);
/** Destroys the socket mutator instance */
void (*destory)(grpc_socket_mutator* mutator);
} grpc_socket_mutator_vtable;
/** The Socket Mutator interface allows changes on socket options */
struct grpc_socket_mutator {
const grpc_socket_mutator_vtable* vtable;
gpr_refcount refcount;
};
/** called by concrete implementations to initialize the base struct */
void grpc_socket_mutator_init(grpc_socket_mutator* mutator,
const grpc_socket_mutator_vtable* vtable);
/** Wrap \a mutator as a grpc_arg */
grpc_arg grpc_socket_mutator_to_arg(grpc_socket_mutator* mutator);
/** Perform the file descriptor mutation operation of \a mutator on \a fd */
bool grpc_socket_mutator_mutate_fd(grpc_socket_mutator* mutator, int fd);
/** Compare if \a a and \a b are the same mutator or have same settings */
int grpc_socket_mutator_compare(grpc_socket_mutator* a, grpc_socket_mutator* b);
grpc_socket_mutator* grpc_socket_mutator_ref(grpc_socket_mutator* mutator);
void grpc_socket_mutator_unref(grpc_socket_mutator* mutator);
#endif /* GRPC_CORE_LIB_IOMGR_SOCKET_MUTATOR_H */
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