ecency-mobile/ios/Pods/Folly/folly/ThreadName.h

73 lines
2.1 KiB
C++

/*
* Copyright 2016 Facebook, Inc.
*
* 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
#include <thread>
#include <pthread.h>
#include <folly/Range.h>
namespace folly {
// This looks a bit weird, but it's necessary to avoid
// having an undefined compiler function called.
#if defined(__GLIBC__) && !defined(__APPLE__) && !defined(__ANDROID__)
#if __GLIBC_PREREQ(2, 12)
// has pthread_setname_np(pthread_t, const char*) (2 params)
#define FOLLY_HAS_PTHREAD_SETNAME_NP_THREAD_NAME 1
#endif
#endif
#if defined(__APPLE__) && defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
// has pthread_setname_np(const char*) (1 param)
#define FOLLY_HAS_PTHREAD_SETNAME_NP_NAME 1
#endif
#endif
template <typename T>
inline bool setThreadName(T /* id */, StringPiece /* name */) {
static_assert(
std::is_same<T, pthread_t>::value ||
std::is_same<T, std::thread::native_handle_type>::value,
"type must be pthread_t or std::thread::native_handle_type");
return false;
}
#ifdef FOLLY_HAS_PTHREAD_SETNAME_NP_THREAD_NAME
template <>
inline bool setThreadName(pthread_t id, StringPiece name) {
return 0 == pthread_setname_np(id, name.fbstr().substr(0, 15).c_str());
}
#endif
#ifdef FOLLY_HAS_PTHREAD_SETNAME_NP_NAME
template <>
inline bool setThreadName(pthread_t id, StringPiece name) {
// Since OS X 10.6 it is possible for a thread to set its own name,
// but not that of some other thread.
if (pthread_equal(pthread_self(), id)) {
return 0 == pthread_setname_np(name.fbstr().c_str());
}
return false;
}
#endif
inline bool setThreadName(StringPiece name) {
return setThreadName(pthread_self(), name);
}
}