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73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
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/*
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* Copyright 2016 Facebook, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <thread>
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#include <pthread.h>
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#include <folly/Range.h>
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namespace folly {
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// This looks a bit weird, but it's necessary to avoid
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// having an undefined compiler function called.
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#if defined(__GLIBC__) && !defined(__APPLE__) && !defined(__ANDROID__)
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#if __GLIBC_PREREQ(2, 12)
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// has pthread_setname_np(pthread_t, const char*) (2 params)
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#define FOLLY_HAS_PTHREAD_SETNAME_NP_THREAD_NAME 1
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#endif
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#endif
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#if defined(__APPLE__) && defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
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#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
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// has pthread_setname_np(const char*) (1 param)
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#define FOLLY_HAS_PTHREAD_SETNAME_NP_NAME 1
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#endif
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#endif
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template <typename T>
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inline bool setThreadName(T /* id */, StringPiece /* name */) {
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static_assert(
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std::is_same<T, pthread_t>::value ||
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std::is_same<T, std::thread::native_handle_type>::value,
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"type must be pthread_t or std::thread::native_handle_type");
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return false;
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}
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#ifdef FOLLY_HAS_PTHREAD_SETNAME_NP_THREAD_NAME
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template <>
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inline bool setThreadName(pthread_t id, StringPiece name) {
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return 0 == pthread_setname_np(id, name.fbstr().substr(0, 15).c_str());
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}
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#endif
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#ifdef FOLLY_HAS_PTHREAD_SETNAME_NP_NAME
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template <>
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inline bool setThreadName(pthread_t id, StringPiece name) {
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// Since OS X 10.6 it is possible for a thread to set its own name,
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// but not that of some other thread.
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if (pthread_equal(pthread_self(), id)) {
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return 0 == pthread_setname_np(name.fbstr().c_str());
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}
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return false;
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}
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#endif
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inline bool setThreadName(StringPiece name) {
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return setThreadName(pthread_self(), name);
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}
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}
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