Repo created

TMessagesProj/jni/voip/webrtc/base/files/scoped_file_android.cc

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+// Copyright 2018 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.
+
+#include "base/files/scoped_file.h"
+
+#include <stdint.h>
+
+// Copied from <android/fdsan.h>.
+// This can go away once this header is included in our copy of the NDK.
+extern "C" {
+void android_fdsan_exchange_owner_tag(int fd,
+                                      uint64_t expected_tag,
+                                      uint64_t new_tag)
+    __attribute__((__weak__));
+}
+
+namespace base {
+namespace internal {
+
+static uint64_t ScopedFDToTag(const ScopedFD& owner) {
+  return reinterpret_cast<uint64_t>(&owner);
+}
+
+// static
+void ScopedFDCloseTraits::Acquire(const ScopedFD& owner, int fd) {
+  if (android_fdsan_exchange_owner_tag) {
+    android_fdsan_exchange_owner_tag(fd, 0, ScopedFDToTag(owner));
+  }
+}
+
+// static
+void ScopedFDCloseTraits::Release(const ScopedFD& owner, int fd) {
+  if (android_fdsan_exchange_owner_tag) {
+    android_fdsan_exchange_owner_tag(fd, ScopedFDToTag(owner), 0);
+  }
+}
+
+}  // namespace internal
+}  // namespace base