grpc1.45.2/include/grpc/impl/codegen/sync.h

/*
 *
 * Copyright 2016 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_IMPL_CODEGEN_SYNC_H
#define GRPC_IMPL_CODEGEN_SYNC_H

// IWYU pragma: private, include <grpc/support/sync.h>

/** Synchronization primitives for GPR.

   The type  gpr_mu              provides a non-reentrant mutex (lock).

   The type  gpr_cv              provides a condition variable.

   The type  gpr_once            provides for one-time initialization.

   The type gpr_event            provides one-time-setting, reading, and
                                 waiting of a void*, with memory barriers.

   The type gpr_refcount         provides an object reference counter,
                                 with memory barriers suitable to control
                                 object lifetimes.

   The type gpr_stats_counter    provides an atomic statistics counter. It
                                 provides no memory barriers.
 */

#ifdef __cplusplus
extern "C" {
#endif

/* Platform-specific type declarations of gpr_mu and gpr_cv.   */
#include <grpc/impl/codegen/port_platform.h>

#include <grpc/impl/codegen/sync_generic.h>  // IWYU pragma: export

#if defined(GPR_CUSTOM_SYNC)
#include <grpc/impl/codegen/sync_custom.h>  // IWYU pragma: export
#elif defined(GPR_ABSEIL_SYNC)
#include <grpc/impl/codegen/sync_abseil.h>  // IWYU pragma: export
#elif defined(GPR_POSIX_SYNC)
#include <grpc/impl/codegen/sync_posix.h>  // IWYU pragma: export
#elif defined(GPR_WINDOWS)
#include <grpc/impl/codegen/sync_windows.h>  // IWYU pragma: export
#else
#error Unable to determine platform for sync
#endif

#ifdef __cplusplus
}
#endif

#endif /* GRPC_IMPL_CODEGEN_SYNC_H */