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// Copyright 2015 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/android/history_report/delta_file_service.h"
#include "base/bind.h"
#include "base/files/file_path.h"
#include "base/synchronization/waitable_event.h"
#include "chrome/browser/android/history_report/delta_file_backend_leveldb.h"
#include "chrome/browser/android/history_report/delta_file_commons.h"
#include "content/public/browser/browser_thread.h"
#include "url/gurl.h"
namespace {
void DoAddPage(history_report::DeltaFileBackend* backend, const GURL& url) {
backend->PageAdded(url);
}
void DoDeletePage(history_report::DeltaFileBackend* backend, const GURL& url) {
backend->PageDeleted(url);
}
void DoTrim(history_report::DeltaFileBackend* backend,
int64_t lower_bound,
base::WaitableEvent* finished,
int64_t* result) {
*result = backend->Trim(lower_bound);
finished->Signal();
}
void DoQuery(
history_report::DeltaFileBackend* backend,
int64_t last_seq_no,
int32_t limit,
base::WaitableEvent* finished,
scoped_ptr<std::vector<history_report::DeltaFileEntryWithData>>* result) {
*result = backend->Query(last_seq_no, limit);
finished->Signal();
}
void DoRecreate(history_report::DeltaFileBackend* backend,
const std::vector<std::string>& urls,
base::WaitableEvent* finished,
bool* result) {
*result = backend->Recreate(urls);
finished->Signal();
}
void DoClear(history_report::DeltaFileBackend* backend) {
backend->Clear();
}
void DoDump(history_report::DeltaFileBackend* backend,
base::WaitableEvent* finished,
std::string* result) {
result->append(backend->Dump());
finished->Signal();
}
} // namespace
namespace history_report {
using content::BrowserThread;
DeltaFileService::DeltaFileService(const base::FilePath& dir)
: worker_pool_token_(BrowserThread::GetBlockingPool()->GetSequenceToken()),
delta_file_backend_(new DeltaFileBackend(dir)) {
}
DeltaFileService::~DeltaFileService() {}
void DeltaFileService::PageAdded(const GURL& url) {
base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool();
pool->PostSequencedWorkerTaskWithShutdownBehavior(
worker_pool_token_,
FROM_HERE,
base::Bind(&DoAddPage,
base::Unretained(delta_file_backend_.get()),
url),
base::SequencedWorkerPool::BLOCK_SHUTDOWN);
}
void DeltaFileService::PageDeleted(const GURL& url) {
base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool();
pool->PostSequencedWorkerTaskWithShutdownBehavior(
worker_pool_token_,
FROM_HERE,
base::Bind(&DoDeletePage,
base::Unretained(delta_file_backend_.get()),
url),
base::SequencedWorkerPool::BLOCK_SHUTDOWN);
}
int64_t DeltaFileService::Trim(int64_t lower_bound) {
int64_t result;
base::WaitableEvent finished(false, false);
base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool();
pool->PostSequencedWorkerTaskWithShutdownBehavior(
worker_pool_token_,
FROM_HERE,
base::Bind(&DoTrim,
base::Unretained(delta_file_backend_.get()),
lower_bound,
base::Unretained(&finished),
base::Unretained(&result)),
base::SequencedWorkerPool::SKIP_ON_SHUTDOWN);
finished.Wait();
return result;
}
scoped_ptr<std::vector<DeltaFileEntryWithData>> DeltaFileService::Query(
int64_t last_seq_no,
int32_t limit) {
scoped_ptr<std::vector<DeltaFileEntryWithData> > result;
base::WaitableEvent finished(false, false);
base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool();
pool->PostSequencedWorkerTaskWithShutdownBehavior(
worker_pool_token_,
FROM_HERE,
base::Bind(&DoQuery,
base::Unretained(delta_file_backend_.get()),
last_seq_no,
limit,
base::Unretained(&finished),
base::Unretained(&result)),
base::SequencedWorkerPool::SKIP_ON_SHUTDOWN);
finished.Wait();
return result;
}
bool DeltaFileService::Recreate(const std::vector<std::string>& urls) {
bool result = false;
base::WaitableEvent finished(false, false);
base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool();
pool->PostSequencedWorkerTaskWithShutdownBehavior(
worker_pool_token_,
FROM_HERE,
base::Bind(&DoRecreate,
base::Unretained(delta_file_backend_.get()),
urls,
base::Unretained(&finished),
base::Unretained(&result)),
base::SequencedWorkerPool::BLOCK_SHUTDOWN);
finished.Wait();
return result;
}
void DeltaFileService::Clear() {
base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool();
pool->PostSequencedWorkerTaskWithShutdownBehavior(
worker_pool_token_,
FROM_HERE,
base::Bind(&DoClear,
base::Unretained(delta_file_backend_.get())),
base::SequencedWorkerPool::BLOCK_SHUTDOWN);
}
std::string DeltaFileService::Dump() {
std::string dump;
base::WaitableEvent finished(false, false);
base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool();
pool->PostSequencedWorkerTaskWithShutdownBehavior(
worker_pool_token_,
FROM_HERE,
base::Bind(&DoDump,
base::Unretained(delta_file_backend_.get()),
base::Unretained(&finished),
base::Unretained(&dump)),
base::SequencedWorkerPool::BLOCK_SHUTDOWN);
finished.Wait();
return dump;
}
} // namespace history_report
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