41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
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// Copyright 2018 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/files/scoped_file.h"
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#include <stdint.h>
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// Copied from <android/fdsan.h>.
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// This can go away once this header is included in our copy of the NDK.
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extern "C" {
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void android_fdsan_exchange_owner_tag(int fd,
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uint64_t expected_tag,
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uint64_t new_tag)
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__attribute__((__weak__));
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}
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namespace base {
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namespace internal {
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static uint64_t ScopedFDToTag(const ScopedFD& owner) {
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return reinterpret_cast<uint64_t>(&owner);
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}
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// static
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void ScopedFDCloseTraits::Acquire(const ScopedFD& owner, int fd) {
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if (android_fdsan_exchange_owner_tag) {
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android_fdsan_exchange_owner_tag(fd, 0, ScopedFDToTag(owner));
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}
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}
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// static
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void ScopedFDCloseTraits::Release(const ScopedFD& owner, int fd) {
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if (android_fdsan_exchange_owner_tag) {
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android_fdsan_exchange_owner_tag(fd, ScopedFDToTag(owner), 0);
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}
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}
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} // namespace internal
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} // namespace base
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