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/*
*
* Copyright 2015, 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.
*
*/
#ifndef GRPC_CORE_LIB_IOMGR_SOCKET_MUTATOR_H
#define GRPC_CORE_LIB_IOMGR_SOCKET_MUTATOR_H
#include <grpc/impl/codegen/grpc_types.h>
#include <grpc/support/sync.h>
#ifdef __cplusplus
extern "C" {
#endif
/** The virtual table of grpc_socket_mutator */
typedef struct {
/** Mutates the socket opitons 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);
#ifdef __cplusplus
}
#endif
#endif /* GRPC_CORE_LIB_IOMGR_SOCKET_MUTATOR_H */
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