/*

 * Copyright (C) 2007 Apple 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:

 * 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 COMPUTER, INC. ``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 COMPUTER, INC. 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.

 */

#include "config.h"

#include "SharedBuffer.h"

namespace WebCore {

PassRefPtr<SharedBuffer> SharedBuffer::createWithContentsOfFile(const String& filePath)

{

    String nullifiedPath = filePath;

    FILE* fileDescriptor = 0;

    if (_wfopen_s(&fileDescriptor, nullifiedPath.charactersWithNullTermination(), TEXT("r+b")) || !fileDescriptor) {

        LOG_ERROR("Failed to open file %s to create shared buffer", filePath.ascii().data());

        return 0;

    }

    RefPtr<SharedBuffer> result;

    // Stat the file to get its size

    struct _stat64 fileStat;

    if (_fstat64(_fileno(fileDescriptor), &fileStat))

        goto exit;

    result = new SharedBuffer();

    result->m_buffer.resize(fileStat.st_size);

    if (result->m_buffer.size() != fileStat.st_size) {

        result = 0;

        goto exit;

    }

    if (fread(result->m_buffer.data(), 1, fileStat.st_size, fileDescriptor) != fileStat.st_size)

        LOG_ERROR("Failed to fully read contents of file %s - errno(%i)", filePath.ascii().data(), errno);

exit:

    fclose(fileDescriptor);

    return result.release();

}

}; // namespace WebCore