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() 12 : options_(), 13 thread_(), 14 started_(false), 15 joined_(false) { 16 } 17 18 Thread::Thread(const Options& options) 19 : options_(options), 20 thread_(), 21 started_(false), 22 joined_(false) { 23 } 24 25 Thread::~Thread() { 26 // If it was started, it must have been joined. 27 assert(!started_ || joined_); 28 } 29 30 void 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 52 void 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 63 void* Thread::ThreadRunTrampoline(void* arg) { 64 Thread* self = static_cast<Thread*>(arg); 65 self->Run(); 66 return NULL; 67 } 68 69 } // namespace mojo 70
