1 /* 2 * Copyright (C) 2007 Apple Inc. All rights reserved. 3 * Copyright (C) 2010 Patrick Gansterer <paroga (at) paroga.com> 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 24 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 25 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include "config.h" 31 #include "SharedBuffer.h" 32 #include <wtf/text/CString.h> 33 34 // INVALID_FILE_SIZE is not defined on WinCE. 35 #ifndef INVALID_FILE_SIZE 36 #define INVALID_FILE_SIZE 0xffffffff 37 #endif 38 39 namespace WebCore { 40 41 PassRefPtr<SharedBuffer> SharedBuffer::createWithContentsOfFile(const String& filePath) 42 { 43 if (filePath.isEmpty()) 44 return 0; 45 46 String nullifiedPath = filePath; 47 HANDLE fileHandle = CreateFileW(nullifiedPath.charactersWithNullTermination(), GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); 48 if (fileHandle == INVALID_HANDLE_VALUE) { 49 LOG_ERROR("Failed to open file %s to create shared buffer, GetLastError() = %u", filePath.ascii().data(), GetLastError()); 50 return 0; 51 } 52 53 RefPtr<SharedBuffer> result; 54 DWORD bytesToRead = GetFileSize(fileHandle, 0); 55 DWORD lastError = GetLastError(); 56 57 if (bytesToRead != INVALID_FILE_SIZE || lastError == NO_ERROR) { 58 Vector<char> buffer(bytesToRead); 59 DWORD bytesRead; 60 if (ReadFile(fileHandle, buffer.data(), bytesToRead, &bytesRead, 0) && bytesToRead == bytesRead) 61 result = SharedBuffer::adoptVector(buffer); 62 else 63 LOG_ERROR("Failed to fully read contents of file %s, GetLastError() = %u", filePath.ascii().data(), GetLastError()); 64 } else 65 LOG_ERROR("Failed to get filesize of file %s, GetLastError() = %u", filePath.ascii().data(), lastError); 66 67 CloseHandle(fileHandle); 68 return result.release(); 69 } 70 71 } // namespace WebCore 72