Add chrome to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 67 insertions, 0 deletions

diff --git a/chrome/common/task_queue.h b/chrome/common/task_queue.h
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CHROME_COMMON_TASK_QUEUE_H__
+#define CHROME_COMMON_TASK_QUEUE_H__
+
+#include <deque>
+
+#include "base/task.h"
+
+// A TaskQueue is a queue of tasks waiting to be run.  To run the tasks, call
+// the Run method.  A task queue is itself a Task so that it can be placed in a
+// message loop or another task queue.
+class TaskQueue : public Task {
+ public:
+  TaskQueue();
+  ~TaskQueue();
+
+  // Run all the tasks in the queue.  New tasks pushed onto the queue during
+  // a run will be run next time |Run| is called.
+  virtual void Run();
+
+  // Push the specified task onto the queue.  When the queue is run, the tasks
+  // will be run in the order they are pushed.
+  //
+  // This method takes ownership of |task| and will delete task after it is run
+  // (or when the TaskQueue is destroyed, if we never got a chance to run it).
+  void Push(Task* task);
+
+  // Remove all tasks from the queue.  The tasks are deleted.
+  void Clear();
+
+  // Returns true if this queue contains no tasks.
+  bool Empty() const;
+
+ private:
+   // The list of tasks we are waiting to run.
+   std::deque<Task*> queue_;
+};
+
+#endif  // CHROME_COMMON_TASK_QUEUE_H__