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// Copyright (c) 2006-2009 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/renderer_host/file_system_accessor.h"
#include "base/file_util.h"
#include "base/message_loop.h"
#include "chrome/browser/chrome_thread.h"
FileSystemAccessor::FileSystemAccessor(void* param, FileSizeCallback* callback)
: param_(param), callback_(callback) {
caller_loop_ = MessageLoop::current();
}
FileSystemAccessor::~FileSystemAccessor() {
}
void FileSystemAccessor::RequestFileSize(const FilePath& path,
void* param,
FileSizeCallback* callback) {
// Getting file size could take long time if it lives on a network share,
// so run it on FILE thread.
ChromeThread::GetMessageLoop(ChromeThread::FILE)->PostTask(
FROM_HERE,
NewRunnableMethod(new FileSystemAccessor(param, callback),
&FileSystemAccessor::GetFileSize, path));
}
void FileSystemAccessor::GetFileSize(const FilePath& path) {
int64 result;
// Set result to -1 if failed to get file size.
if (!file_util::GetFileSize(path, &result))
result = -1;
// Pass the result back to the caller thread.
caller_loop_->PostTask(
FROM_HERE,
NewRunnableMethod(this, &FileSystemAccessor::GetFileSizeCompleted, result));
}
void FileSystemAccessor::GetFileSizeCompleted(int64 result) {
callback_->Run(result, param_);
}
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