WebCore/platform/FileSystem.h

/*
 * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
 * Copyright (C) 2008 Collabora, Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer. 
 * 2.  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. 
 * 3.  Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 FileSystem_h
#define FileSystem_h

#include <wtf/Platform.h>

typedef const struct __CFData* CFDataRef;

namespace WebCore {

class CString;
class String;

#if PLATFORM(WIN)
typedef HANDLE PlatformFileHandle;
const PlatformFileHandle invalidPlatformFileHandle = INVALID_HANDLE_VALUE;
#else
typedef int PlatformFileHandle;
const PlatformFileHandle invalidPlatformFileHandle = -1;
#endif

bool fileExists(const String&);
bool deleteFile(const String&);
bool deleteEmptyDirectory(const String&);
bool getFileSize(const String&, long long& result);
bool getFileModificationTime(const String&, time_t& result);
String pathByAppendingComponent(const String& path, const String& component);
bool makeAllDirectories(const String& path);
String homeDirectoryPath();

CString fileSystemRepresentation(const String&);

inline bool isHandleValid(const PlatformFileHandle& handle) { return handle != invalidPlatformFileHandle; }

// Prefix is what the filename should be prefixed with, not the full path.
CString openTemporaryFile(const char* prefix, PlatformFileHandle&);
void closeFile(PlatformFileHandle&);
int writeToFile(PlatformFileHandle, const char* data, int length);

#if PLATFORM(WIN)
String localUserSpecificStorageDirectory();
String roamingUserSpecificStorageDirectory();

bool safeCreateFile(const String&, CFDataRef);
#endif

} // namespace WebCore

#endif // FileSystem_h