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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "mojo/public/cpp/utility/thread.h"
#include <assert.h>
namespace mojo {
Thread::Thread() : options_(), thread_(), started_(false), joined_(false) {
}
Thread::Thread(const Options& options)
: options_(options), thread_(), started_(false), joined_(false) {
}
Thread::~Thread() {
// If it was started, it must have been joined.
assert(!started_ || joined_);
}
void Thread::Start() {
assert(!started_);
assert(!joined_);
pthread_attr_t attr;
int rv = pthread_attr_init(&attr);
MOJO_ALLOW_UNUSED_LOCAL(rv);
assert(rv == 0);
// Non-default stack size?
if (options_.stack_size() != 0) {
rv = pthread_attr_setstacksize(&attr, options_.stack_size());
assert(rv == 0);
}
started_ = true;
rv = pthread_create(&thread_, &attr, &ThreadRunTrampoline, this);
assert(rv == 0);
rv = pthread_attr_destroy(&attr);
assert(rv == 0);
}
void Thread::Join() {
// Must have been started but not yet joined.
assert(started_);
assert(!joined_);
joined_ = true;
int rv = pthread_join(thread_, nullptr);
MOJO_ALLOW_UNUSED_LOCAL(rv);
assert(rv == 0);
}
// static
void* Thread::ThreadRunTrampoline(void* arg) {
Thread* self = static_cast<Thread*>(arg);
self->Run();
return nullptr;
}
} // namespace mojo
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