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Unified Diff: base/files/file_path_watcher_mac.cc

Issue 313083007: Use FSEvents for recursive file watch on Mac (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: include fix for iOS Created 6 years, 6 months ago
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Index: base/files/file_path_watcher_mac.cc
diff --git a/base/files/file_path_watcher_mac.cc b/base/files/file_path_watcher_mac.cc
new file mode 100644
index 0000000000000000000000000000000000000000..c4740c31fdc20461b7e8f54be555d13a7762df85
--- /dev/null
+++ b/base/files/file_path_watcher_mac.cc
@@ -0,0 +1,60 @@
+// Copyright (c) 2014 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/file_path_watcher.h"
+#include "base/files/file_path_watcher_kqueue.h"
+
+#if !defined(OS_IOS)
+#include "base/files/file_path_watcher_fsevents.h"
+#endif
+
+namespace base {
+
+namespace {
+
+class FilePathWatcherImpl : public FilePathWatcher::PlatformDelegate {
+ public:
+ virtual bool Watch(const FilePath& path,
+ bool recursive,
+ const FilePathWatcher::Callback& callback) OVERRIDE {
+ // Use kqueue for non-recursive watches and FSEvents for recursive ones.
+ DCHECK(!impl_.get());
+ if (recursive) {
+ if (!FilePathWatcher::RecursiveWatchAvailable())
+ return false;
+#if !defined(OS_IOS)
+ impl_ = new FilePathWatcherFSEvents();
+#endif // OS_IOS
+ } else {
+ impl_ = new FilePathWatcherKQueue();
+ }
+ DCHECK(impl_.get());
+ return impl_->Watch(path, recursive, callback);
+ }
+
+ virtual void Cancel() OVERRIDE {
+ if (impl_)
+ impl_->Cancel();
+ set_cancelled();
+ }
+
+ virtual void CancelOnMessageLoopThread() OVERRIDE {
+ if (impl_)
+ impl_->Cancel();
+ set_cancelled();
+ }
+
+ protected:
+ virtual ~FilePathWatcherImpl() {}
+
+ scoped_refptr<PlatformDelegate> impl_;
+};
+
+} // namespace
+
+FilePathWatcher::FilePathWatcher() {
+ impl_ = new FilePathWatcherImpl();
+}
+
+} // namespace base
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