naiveproxy/base/fuchsia/scoped_zx_handle.h
2018-08-11 05:35:24 +00:00

48 lines
1.2 KiB
C++

// Copyright 2017 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_FUCHSIA_SCOPED_ZX_HANDLE_H_
#define BASE_FUCHSIA_SCOPED_ZX_HANDLE_H_
#include <zircon/status.h>
#include <zircon/syscalls.h>
#include "base/base_export.h"
#include "base/fuchsia/fuchsia_logging.h"
#include "base/scoped_generic.h"
namespace zx {
class channel;
}
namespace base {
namespace internal {
struct ScopedZxHandleTraits {
static zx_handle_t InvalidValue() { return ZX_HANDLE_INVALID; }
static void Free(zx_handle_t object) {
zx_status_t status = zx_handle_close(object);
ZX_CHECK(status == ZX_OK, status) << "zx_handle_close";
}
};
} // namespace internal
class BASE_EXPORT ScopedZxHandle
: public ScopedGeneric<zx_handle_t, internal::ScopedZxHandleTraits> {
public:
ScopedZxHandle() = default;
explicit ScopedZxHandle(zx_handle_t value) : ScopedGeneric(value) {}
explicit operator bool() const { return get() != ZX_HANDLE_INVALID; }
// Helper to converts zx::channel to ScopedZxHandle.
static ScopedZxHandle FromZxChannel(zx::channel channel);
};
} // namespace base
#endif // BASE_FUCHSIA_SCOPED_ZX_HANDLE_H_