Home | History | Annotate | Download | only in win 
      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