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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "mojo/public/cpp/utility/thread.h" | |
| 6 | |
| 7 #include <assert.h> | |
| 8 | |
| 9 namespace mojo { | |
| 10 | |
| 11 Thread::Thread() : options_(), thread_(), started_(false), joined_(false) { | |
| 12 } | |
| 13 | |
| 14 Thread::Thread(const Options& options) | |
| 15 : options_(options), thread_(), started_(false), joined_(false) { | |
| 16 } | |
| 17 | |
| 18 Thread::~Thread() { | |
| 19 // If it was started, it must have been joined. | |
| 20 assert(!started_ || joined_); | |
| 21 } | |
| 22 | |
| 23 void Thread::Start() { | |
| 24 assert(!started_); | |
| 25 assert(!joined_); | |
| 26 | |
| 27 pthread_attr_t attr; | |
| 28 int rv = pthread_attr_init(&attr); | |
| 29 MOJO_ALLOW_UNUSED_LOCAL(rv); | |
| 30 assert(rv == 0); | |
| 31 | |
| 32 // Non-default stack size? | |
| 33 if (options_.stack_size() != 0) { | |
| 34 rv = pthread_attr_setstacksize(&attr, options_.stack_size()); | |
| 35 assert(rv == 0); | |
| 36 } | |
| 37 | |
| 38 started_ = true; | |
| 39 rv = pthread_create(&thread_, &attr, &ThreadRunTrampoline, this); | |
| 40 assert(rv == 0); | |
| 41 | |
| 42 rv = pthread_attr_destroy(&attr); | |
| 43 assert(rv == 0); | |
| 44 } | |
| 45 | |
| 46 void Thread::Join() { | |
| 47 // Must have been started but not yet joined. | |
| 48 assert(started_); | |
| 49 assert(!joined_); | |
| 50 | |
| 51 joined_ = true; | |
| 52 int rv = pthread_join(thread_, nullptr); | |
| 53 MOJO_ALLOW_UNUSED_LOCAL(rv); | |
| 54 assert(rv == 0); | |
| 55 } | |
| 56 | |
| 57 // static | |
| 58 void* Thread::ThreadRunTrampoline(void* arg) { | |
| 59 Thread* self = static_cast<Thread*>(arg); | |
| 60 self->Run(); | |
| 61 return nullptr; | |
| 62 } | |
| 63 | |
| 64 } // namespace mojo | |
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