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/*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* 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.
*/
#pragma once
#if defined(__ELF__) && (defined(__x86_64__) || defined(__i386__)) && \
!FOLLY_DISABLE_SDT
#include <folly/tracing/StaticTracepoint-ELFx86.h>
#define FOLLY_SDT(provider, name, ...) \
FOLLY_SDT_PROBE_N( \
provider, name, 0, FOLLY_SDT_NARG(0, ##__VA_ARGS__), ##__VA_ARGS__)
// Use FOLLY_SDT_DEFINE_SEMAPHORE(provider, name) to define the semaphore
// as global variable before using the FOLLY_SDT_WITH_SEMAPHORE macro
#define FOLLY_SDT_WITH_SEMAPHORE(provider, name, ...) \
FOLLY_SDT_PROBE_N( \
provider, name, 1, FOLLY_SDT_NARG(0, ##__VA_ARGS__), ##__VA_ARGS__)
#define FOLLY_SDT_IS_ENABLED(provider, name) \
(FOLLY_SDT_SEMAPHORE(provider, name) > 0)
#else
#define FOLLY_SDT(provider, name, ...) \
do { \
} while (0)
#define FOLLY_SDT_WITH_SEMAPHORE(provider, name, ...) \
do { \
} while (0)
#define FOLLY_SDT_IS_ENABLED(provider, name) (false)
#define FOLLY_SDT_DEFINE_SEMAPHORE(provider, name)
#define FOLLY_SDT_DECLARE_SEMAPHORE(provider, name)
#endif
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