chromium/third_party/abseil-cpp/absl/base/internal/tsan_mutex_interface.h

// Copyright 2017 The Abseil 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
//
//      https://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.
//
// This file is intended solely for spinlock.h.
// It provides ThreadSanitizer annotations for custom mutexes.
// See <sanitizer/tsan_interface.h> for meaning of these annotations.

#ifndef ABSL_BASE_INTERNAL_TSAN_MUTEX_INTERFACE_H_
#define ABSL_BASE_INTERNAL_TSAN_MUTEX_INTERFACE_H_

#include "absl/base/config.h"

// ABSL_INTERNAL_HAVE_TSAN_INTERFACE
// Macro intended only for internal use.
//
// Checks whether LLVM Thread Sanitizer interfaces are available.
// First made available in LLVM 5.0 (Sep 2017).
#ifdef ABSL_INTERNAL_HAVE_TSAN_INTERFACE
#error "ABSL_INTERNAL_HAVE_TSAN_INTERFACE cannot be directly set."
#endif

#if defined(ABSL_HAVE_THREAD_SANITIZER) && defined(__has_include)
#if __has_include(<sanitizer/tsan_interface.h>)
#define ABSL_INTERNAL_HAVE_TSAN_INTERFACE …
#endif
#endif

#ifdef ABSL_INTERNAL_HAVE_TSAN_INTERFACE
#include <sanitizer/tsan_interface.h>

#define ABSL_TSAN_MUTEX_CREATE …
#define ABSL_TSAN_MUTEX_DESTROY …
#define ABSL_TSAN_MUTEX_PRE_LOCK …
#define ABSL_TSAN_MUTEX_POST_LOCK …
#define ABSL_TSAN_MUTEX_PRE_UNLOCK …
#define ABSL_TSAN_MUTEX_POST_UNLOCK …
#define ABSL_TSAN_MUTEX_PRE_SIGNAL …
#define ABSL_TSAN_MUTEX_POST_SIGNAL …
#define ABSL_TSAN_MUTEX_PRE_DIVERT …
#define ABSL_TSAN_MUTEX_POST_DIVERT …

#else

#define ABSL_TSAN_MUTEX_CREATE(...) …
#define ABSL_TSAN_MUTEX_DESTROY(...) …
#define ABSL_TSAN_MUTEX_PRE_LOCK(...) …
#define ABSL_TSAN_MUTEX_POST_LOCK(...) …
#define ABSL_TSAN_MUTEX_PRE_UNLOCK(...) …
#define ABSL_TSAN_MUTEX_POST_UNLOCK(...) …
#define ABSL_TSAN_MUTEX_PRE_SIGNAL(...) …
#define ABSL_TSAN_MUTEX_POST_SIGNAL(...) …
#define ABSL_TSAN_MUTEX_PRE_DIVERT(...) …
#define ABSL_TSAN_MUTEX_POST_DIVERT(...) …

#endif

#endif  // ABSL_BASE_INTERNAL_TSAN_MUTEX_INTERFACE_H_