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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef LocalFileSystem_h
#define LocalFileSystem_h
#if ENABLE(FILE_SYSTEM)
#include "AsyncFileSystem.h"
#include "PlatformString.h"
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
namespace WebCore {
class ErrorCallback;
class FileSystemCallback;
class ScriptExecutionContext;
// Keeps per-process information and provides an entry point to open a file system.
class LocalFileSystem : public Noncopyable {
public:
// Returns a per-process instance of LocalFileSystem.
// Note that LocalFileSystem::initializeLocalFileSystem must be called before
// calling this one.
static LocalFileSystem& localFileSystem();
void requestFileSystem(ScriptExecutionContext*, AsyncFileSystem::Type, long long size, PassOwnPtr<AsyncFileSystemCallbacks>);
#if !PLATFORM(CHROMIUM)
// This call is not thread-safe; must be called before any worker threads are created.
void initializeLocalFileSystem(const String&);
String fileSystemBasePath() const;
#endif
private:
LocalFileSystem(const String& basePath)
: m_basePath(basePath)
{
}
static LocalFileSystem* s_instance;
// An inner class that enforces thread-safe string access.
class SystemBasePath {
public:
explicit SystemBasePath(const String& path) : m_value(path) { }
operator String() const
{
return m_value.threadsafeCopy();
}
private:
String m_value;
};
SystemBasePath m_basePath;
};
} // namespace
#endif // ENABLE(FILE_SYSTEM)
#endif // LocalFileSystem_h
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