webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 75 insertions, 0 deletions

diff --git a/Source/WebCore/platform/posix/SharedBufferPOSIX.cpp b/Source/WebCore/platform/posix/SharedBufferPOSIX.cpp
new file mode 100644
index 000000000..569f8f100
--- /dev/null
+++ b/Source/WebCore/platform/posix/SharedBufferPOSIX.cpp
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2010 Company 100, 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE 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 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"
+
+#include "FileSystem.h"
+
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <wtf/text/CString.h>
+
+namespace WebCore {
+
+RefPtr<SharedBuffer> SharedBuffer::createFromReadingFile(const String& filePath)
+{
+    if (filePath.isEmpty())
+        return nullptr;
+
+    CString filename = fileSystemRepresentation(filePath);
+    int fd = open(filename.data(), O_RDONLY);
+    if (fd == -1)
+        return nullptr;
+
+    struct stat fileStat;
+    if (fstat(fd, &fileStat)) {
+        close(fd);
+        return nullptr;
+    }
+
+    size_t bytesToRead;
+    if (!WTF::convertSafely(fileStat.st_size, bytesToRead)) {
+        close(fd);
+        return nullptr;
+    }
+
+    Vector<char> buffer(bytesToRead);
+
+    size_t totalBytesRead = 0;
+    ssize_t bytesRead;
+    while ((bytesRead = read(fd, buffer.data() + totalBytesRead, bytesToRead - totalBytesRead)) > 0)
+        totalBytesRead += bytesRead;
+
+    close(fd);
+
+    if (totalBytesRead != bytesToRead)
+        return nullptr;
+
+    return SharedBuffer::adoptVector(buffer);
+}
+
+} // namespace WebCore