| #ifndef _PRAGMA_COPYRIGHT_ |
| #define _PRAGMA_COPYRIGHT_ |
| #pragma comment(copyright, "%Z% %I% %W% %D% %T%\0") |
| #endif /* _PRAGMA_COPYRIGHT_ */ |
| /**************************************************************************** |
| |
| * Copyright (c) 2008, 2010 IBM Corporation. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0s |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| |
| Classes: EventNotify |
| |
| Description: Synchronization between threads |
| |
| Author: Tu HongJ |
| |
| History: |
| Date Who ID Description |
| -------- --- --- ----------- |
| 12/05/08 tuhongj Initial code (D154660) |
| |
| ****************************************************************************/ |
| |
| #ifndef _EVENTNTF_HPP |
| #define _EVENTNTF_HPP |
| |
| #include <pthread.h> |
| |
| const int MAX_SERIAL_NUM = 256; |
| |
| struct serialNtfTest |
| { |
| bool freezed; // freeze() been called? |
| bool notified; // notify() been called? |
| void *ret; |
| }; |
| |
| class EventNotify |
| { |
| private: |
| static EventNotify *notifier; |
| EventNotify(); |
| pthread_mutex_t mtx; |
| pthread_cond_t cond; |
| int serialNum; |
| struct serialNtfTest serialTest[MAX_SERIAL_NUM]; |
| |
| public: |
| ~EventNotify(); |
| static EventNotify * getInstance() { |
| if (notifier == NULL) |
| notifier = new EventNotify(); |
| return notifier; |
| } |
| |
| int allocate(); |
| void freeze(int id, void *ret_val = NULL); |
| void notify(int id); |
| void * getRetVal(int id); |
| |
| private: |
| bool test(int id); |
| void tryFreeze(); |
| |
| void lock(); |
| void unlock(); |
| }; |
| |
| #define gNotifier EventNotify::getInstance() |
| |
| #endif |
| |