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// Copyright 2012 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_MAC_SCOPED_CFFILEDESCRIPTORREF_H_
#define BASE_MAC_SCOPED_CFFILEDESCRIPTORREF_H_
#include <CoreFoundation/CoreFoundation.h>
#include "base/scoped_generic.h"
namespace base {
namespace mac {
namespace internal {
struct ScopedCFFileDescriptorRefTraits {
static CFFileDescriptorRef InvalidValue() { return nullptr; }
static void Free(CFFileDescriptorRef ref) {
CFFileDescriptorInvalidate(ref);
CFRelease(ref);
}
};
} // namespace internal
// ScopedCFFileDescriptorRef is designed after ScopedCFTypeRef<>. On
// destruction, it will invalidate the file descriptor.
// ScopedCFFileDescriptorRef (unlike ScopedCFTypeRef<>) does not support RETAIN
// semantics, copying, or assignment, as doing so would increase the chances
// that a file descriptor is invalidated while still in use.
using ScopedCFFileDescriptorRef =
ScopedGeneric<CFFileDescriptorRef,
internal::ScopedCFFileDescriptorRefTraits>;
} // namespace mac
} // namespace base
#endif // BASE_MAC_SCOPED_CFFILEDESCRIPTORREF_H_
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