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--- base/files/file_path_watcher_bsd.cc.orig 2022-02-07 13:39:41 UTC
+++ base/files/file_path_watcher_bsd.cc
@@ -0,0 +1,54 @@
+// Copyright 2021 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 <memory>
+
+#include "base/files/file_path_watcher.h"
+#include "base/files/file_path_watcher_kqueue.h"
+#include "base/memory/ptr_util.h"
+#include "build/build_config.h"
+
+namespace base {
+
+namespace {
+
+class FilePathWatcherImpl : public FilePathWatcher::PlatformDelegate {
+ public:
+ FilePathWatcherImpl() = default;
+ FilePathWatcherImpl(const FilePathWatcherImpl&) = delete;
+ FilePathWatcherImpl& operator=(const FilePathWatcherImpl&) = delete;
+ ~FilePathWatcherImpl() override = default;
+
+ bool Watch(const FilePath& path,
+ Type type,
+ const FilePathWatcher::Callback& callback) override {
+ DCHECK(!impl_.get());
+ if (type == Type::kRecursive) {
+ if (!FilePathWatcher::RecursiveWatchAvailable())
+ return false;
+ } else {
+ impl_ = std::make_unique<FilePathWatcherKQueue>();
+ }
+ DCHECK(impl_.get());
+ return impl_->Watch(path, type, callback);
+ }
+
+ void Cancel() override {
+ if (impl_.get())
+ impl_->Cancel();
+ set_cancelled();
+ }
+
+ private:
+ std::unique_ptr<PlatformDelegate> impl_;
+};
+
+} // namespace
+
+FilePathWatcher::FilePathWatcher() {
+ sequence_checker_.DetachFromSequence();
+ impl_ = std::make_unique<FilePathWatcherImpl>();
+}
+
+} // namespace base
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