Index: components/browser_watcher/watcher_client_win.h |
diff --git a/components/browser_watcher/watcher_client_win.h b/components/browser_watcher/watcher_client_win.h |
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index 0000000000000000000000000000000000000000..125811b54609c61e74a4e8b5c1014eac91bc2711 |
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+++ b/components/browser_watcher/watcher_client_win.h |
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+// 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. |
+ |
+#ifndef COMPONENTS_BROWSER_WATCHER_WATCHER_CLIENT_WIN_H_ |
+#define COMPONENTS_BROWSER_WATCHER_WATCHER_CLIENT_WIN_H_ |
+ |
+#include "base/command_line.h" |
+#include "base/macros.h" |
+#include "base/process/process_handle.h" |
+#include "base/win/scoped_handle.h" |
+ |
+namespace browser_watcher { |
+ |
+// An interface class to take care of the details in launching a browser |
+// watch process. |
+class WatcherClient { |
+ public: |
+ // Constructs a watcher client with a |base_command_line|, which should be |
+ // a command line sufficient to invoke the watcher process. This command |
+ // line will be augmented with the value of the inherited handle. |
+ explicit WatcherClient(const base::CommandLine& base_command_line); |
+ |
+ // Launches the watcher process. |
+ void LaunchWatcher(); |
+ |
+ // Accessors, exposed only for testing. |
+ bool use_legacy_launch() const { return use_legacy_launch_; } |
+ void set_use_legacy_launch(bool use_legacy_launch) { |
+ use_legacy_launch_ = use_legacy_launch; |
+ } |
+ base::ProcessHandle process() const { return process_.Get(); } |
+ |
+ private: |
+ // Launches |cmd_line| such that the child process is able to inherit |
+ // |handle|. If |use_legacy_launch_| is true, this uses a non-threadsafe |
+ // legacy launch mode that's compatible with Windows XP. |
+ // Returns a handle to the child process. |
+ base::win::ScopedHandle LaunchWatcherProcess( |
+ const base::CommandLine& cmd_line, base::ProcessHandle self_handle); |
+ |
+ // If true, the watcher process will be launched with XP legacy handle |
+ // inheritance. This is not thread safe and can leak random handles into the |
+ // child process, but it's the best we can do on XP. |
+ bool use_legacy_launch_; |
+ |
+ // The base command line passed to the constructor. |
+ base::CommandLine base_command_line_; |
+ |
+ // A handle to the launched watcher process. Valid after a successful |
+ // LaunchWatcher() call. |
+ base::win::ScopedHandle process_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(WatcherClient); |
+}; |
+ |
+} // namespace browser_watcher |
+ |
+#endif // COMPONENTS_BROWSER_WATCHER_WATCHER_CLIENT_WIN_H_ |