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 9namespace mojo { 10 11Thread::Thread() 12 : options_(), 13 thread_(), 14 started_(false), 15 joined_(false) { 16} 17 18Thread::Thread(const Options& options) 19 : options_(options), 20 thread_(), 21 started_(false), 22 joined_(false) { 23} 24 25Thread::~Thread() { 26 // If it was started, it must have been joined. 27 assert(!started_ || joined_); 28} 29 30void Thread::Start() { 31 assert(!started_); 32 assert(!joined_); 33 34 pthread_attr_t attr; 35 int rv MOJO_ALLOW_UNUSED = pthread_attr_init(&attr); 36 assert(rv == 0); 37 38 // Non-default stack size? 39 if (options_.stack_size() != 0) { 40 rv = pthread_attr_setstacksize(&attr, options_.stack_size()); 41 assert(rv == 0); 42 } 43 44 started_ = true; 45 rv = pthread_create(&thread_, &attr, &ThreadRunTrampoline, this); 46 assert(rv == 0); 47 48 rv = pthread_attr_destroy(&attr); 49 assert(rv == 0); 50} 51 52void Thread::Join() { 53 // Must have been started but not yet joined. 54 assert(started_); 55 assert(!joined_); 56 57 joined_ = true; 58 int rv MOJO_ALLOW_UNUSED = pthread_join(thread_, NULL); 59 assert(rv == 0); 60} 61 62// static 63void* Thread::ThreadRunTrampoline(void* arg) { 64 Thread* self = static_cast<Thread*>(arg); 65 self->Run(); 66 return NULL; 67} 68 69} // namespace mojo 70