67 lines
2.9 KiB
C++
67 lines
2.9 KiB
C++
/*
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* Copyright (C) 2007 Apple Inc. All rights reserved.
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* Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Apple Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "SharedBuffer.h"
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#include <wtf/text/CString.h>
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namespace WebCore {
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RefPtr<SharedBuffer> SharedBuffer::createFromReadingFile(const String& filePath)
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{
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if (filePath.isEmpty())
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return nullptr;
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String nullifiedPath = filePath;
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HANDLE fileHandle = CreateFileW(nullifiedPath.wideCharacters().data(), GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
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if (fileHandle == INVALID_HANDLE_VALUE) {
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LOG_ERROR("Failed to open file %s to create shared buffer, GetLastError() = %u", filePath.ascii().data(), GetLastError());
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return nullptr;
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}
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RefPtr<SharedBuffer> result;
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DWORD bytesToRead = GetFileSize(fileHandle, 0);
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DWORD lastError = GetLastError();
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if (bytesToRead != INVALID_FILE_SIZE || lastError == NO_ERROR) {
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Vector<uint8_t> buffer(bytesToRead);
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DWORD bytesRead;
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if (ReadFile(fileHandle, buffer.data(), bytesToRead, &bytesRead, 0) && bytesToRead == bytesRead)
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result = SharedBuffer::create(WTFMove(buffer));
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else
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LOG_ERROR("Failed to fully read contents of file %s, GetLastError() = %u", filePath.ascii().data(), GetLastError());
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} else
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LOG_ERROR("Failed to get filesize of file %s, GetLastError() = %u", filePath.ascii().data(), lastError);
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CloseHandle(fileHandle);
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return result;
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}
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} // namespace WebCore
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