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// Copyright (c) 2012 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 "chrome/browser/sync/glue/browser_thread_model_worker.h"
#include "base/bind.h"
#include "base/synchronization/waitable_event.h"
#include "content/public/browser/browser_thread.h"
using base::WaitableEvent;
using content::BrowserThread;
namespace browser_sync {
BrowserThreadModelWorker::BrowserThreadModelWorker(
BrowserThread::ID thread, syncer::ModelSafeGroup group,
syncer::WorkerLoopDestructionObserver* observer)
: ModelSafeWorker(observer),
thread_(thread), group_(group) {
}
syncer::SyncerError BrowserThreadModelWorker::DoWorkAndWaitUntilDoneImpl(
const syncer::WorkCallback& work) {
syncer::SyncerError error = syncer::UNSET;
if (BrowserThread::CurrentlyOn(thread_)) {
DLOG(WARNING) << "Already on thread " << thread_;
return work.Run();
}
if (!BrowserThread::PostTask(
thread_,
FROM_HERE,
base::Bind(&BrowserThreadModelWorker::CallDoWorkAndSignalTask,
this, work,
work_done_or_stopped(), &error))) {
DLOG(WARNING) << "Failed to post task to thread " << thread_;
error = syncer::CANNOT_DO_WORK;
return error;
}
work_done_or_stopped()->Wait();
return error;
}
syncer::ModelSafeGroup BrowserThreadModelWorker::GetModelSafeGroup() {
return group_;
}
BrowserThreadModelWorker::~BrowserThreadModelWorker() {}
void BrowserThreadModelWorker::RegisterForLoopDestruction() {
if (BrowserThread::CurrentlyOn(thread_)) {
base::MessageLoop::current()->AddDestructionObserver(this);
} else {
BrowserThread::PostTask(
thread_, FROM_HERE,
Bind(&BrowserThreadModelWorker::RegisterForLoopDestruction, this));
}
}
void BrowserThreadModelWorker::CallDoWorkAndSignalTask(
const syncer::WorkCallback& work,
WaitableEvent* done,
syncer::SyncerError* error) {
DCHECK(BrowserThread::CurrentlyOn(thread_));
if (!IsStopped())
*error = work.Run();
done->Signal();
}
DatabaseModelWorker::DatabaseModelWorker(
syncer::WorkerLoopDestructionObserver* observer)
: BrowserThreadModelWorker(BrowserThread::DB, syncer::GROUP_DB, observer) {
}
void DatabaseModelWorker::CallDoWorkAndSignalTask(
const syncer::WorkCallback& work,
WaitableEvent* done,
syncer::SyncerError* error) {
BrowserThreadModelWorker::CallDoWorkAndSignalTask(work, done, error);
}
DatabaseModelWorker::~DatabaseModelWorker() {}
FileModelWorker::FileModelWorker(
syncer::WorkerLoopDestructionObserver* observer)
: BrowserThreadModelWorker(BrowserThread::FILE, syncer::GROUP_FILE,
observer) {
}
void FileModelWorker::CallDoWorkAndSignalTask(
const syncer::WorkCallback& work,
WaitableEvent* done,
syncer::SyncerError* error) {
BrowserThreadModelWorker::CallDoWorkAndSignalTask(work, done, error);
}
FileModelWorker::~FileModelWorker() {}
} // namespace browser_sync
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