| // Copyright 2010-2015, 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 MOZC_BASE_UNNAMED_EVENT_H_ |
| #define MOZC_BASE_UNNAMED_EVENT_H_ |
| |
| #include "base/scoped_handle.h" |
| |
| #ifndef OS_WIN |
| #include <pthread.h> |
| #endif |
| |
| namespace mozc { |
| |
| // UnnamedEvent is a simple event object shared by multiple threads. |
| class UnnamedEvent { |
| public: |
| UnnamedEvent(); |
| virtual ~UnnamedEvent(); |
| |
| // Waits an event. Can set a maximum timeout value. |
| // Return true if the event object receives a notification event from |
| // different thread. |
| bool Wait(int msec); |
| |
| // Raises a notification event. |
| bool Notify(); |
| |
| // Returns true if this event object is available. |
| bool IsAvailable() const; |
| |
| private: |
| #ifdef OS_WIN |
| ScopedHandle handle_; |
| #else |
| pthread_cond_t cond_; |
| pthread_mutex_t mutex_; |
| bool notified_; |
| #endif |
| }; |
| } // namespace mozc |
| |
| #endif // MOZC_BASE_UNNAMED_EVENT_H_ |