1 files changed, 81 insertions, 0 deletions
diff --git a/net/disk_cache/os_file_win.cc b/net/disk_cache/os_file_win.cc
new file mode 100644
index 0000000..5276b24
--- /dev/null
+++ b/net/disk_cache/os_file_win.cc
@@ -0,0 +1,81 @@
+// Copyright 2008, Google 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:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * 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.
+//    * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "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 THE COPYRIGHT
+// OWNER 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 "net/disk_cache/os_file.h"
+
+#include "base/logging.h"
+
+namespace disk_cache {
+
+OSFile CreateOSFile(const std::wstring& name, int flags, bool* created) {
+  DWORD disposition = 0;
+
+  if (flags & OS_FILE_OPEN)
+    disposition = OPEN_EXISTING;
+
+  if (flags & OS_FILE_CREATE) {
+    DCHECK(!disposition);
+    disposition = CREATE_NEW;
+  }
+
+  if (flags & OS_FILE_OPEN_ALWAYS) {
+    DCHECK(!disposition);
+    disposition = OPEN_ALWAYS;
+  }
+
+  if (flags & OS_FILE_CREATE_ALWAYS) {
+    DCHECK(!disposition);
+    disposition = CREATE_ALWAYS;
+  }
+
+  if (!disposition) {
+    NOTREACHED();
+    return NULL;
+  }
+
+  DWORD access = (flags & OS_FILE_READ) ? GENERIC_READ : 0;
+  if (flags & OS_FILE_WRITE)
+    access |= GENERIC_WRITE;
+
+  DWORD sharing = (flags & OS_FILE_SHARE_READ) ? FILE_SHARE_READ : 0;
+  if (flags & OS_FILE_SHARE_WRITE)
+    access |= FILE_SHARE_WRITE;
+
+  HANDLE file = CreateFile(name.c_str(), access, sharing, NULL, disposition, 0,
+                           NULL);
+
+  if ((flags & OS_FILE_OPEN_ALWAYS) && created &&
+      INVALID_HANDLE_VALUE != file) {
+    *created = (ERROR_ALREADY_EXISTS != GetLastError());
+  }
+
+  return file;
+}
+
+}  // namespace disk_cache