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-rw-r--r--chromium/base/files/scoped_file.h61
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diff --git a/chromium/base/files/scoped_file.h b/chromium/base/files/scoped_file.h
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+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BASE_FILES_SCOPED_FILE_H_
+#define BASE_FILES_SCOPED_FILE_H_
+
+#include <stdio.h>
+
+#include "base/base_export.h"
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/scoped_generic.h"
+#include "build/build_config.h"
+
+namespace base {
+
+namespace internal {
+
+#if defined(OS_POSIX)
+struct BASE_EXPORT ScopedFDCloseTraits {
+ static int InvalidValue() {
+ return -1;
+ }
+ static void Free(int fd);
+};
+#endif
+
+// Functor for |ScopedFILE| (below).
+struct ScopedFILECloser {
+ inline void operator()(FILE* x) const {
+ if (x)
+ fclose(x);
+ }
+};
+
+} // namespace internal
+
+// -----------------------------------------------------------------------------
+
+#if defined(OS_POSIX)
+// A low-level Posix file descriptor closer class. Use this when writing
+// platform-specific code, especially that does non-file-like things with the
+// FD (like sockets).
+//
+// If you're writing low-level Windows code, see base/win/scoped_handle.h
+// which provides some additional functionality.
+//
+// If you're writing cross-platform code that deals with actual files, you
+// should generally use base::File instead which can be constructed with a
+// handle, and in addition to handling ownership, has convenient cross-platform
+// file manipulation functions on it.
+typedef ScopedGeneric<int, internal::ScopedFDCloseTraits> ScopedFD;
+#endif
+
+// Automatically closes |FILE*|s.
+typedef scoped_ptr<FILE, internal::ScopedFILECloser> ScopedFILE;
+
+} // namespace base
+
+#endif // BASE_FILES_SCOPED_FILE_H_