Monitor.cpp
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:2k
- /* Copyright (C) 2003 MySQL AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- #include <ndb_global.h>
- #include <NdbThread.h>
- #include <NdbOut.hpp>
- #include <NdbSleep.h>
- #include "CPCD.hpp"
- #include "common.hpp"
- static void *
- monitor_thread_create_wrapper(void * arg) {
- CPCD::Monitor *mon = (CPCD::Monitor *)arg;
- mon->run();
- return NULL;
- }
- CPCD::Monitor::Monitor(CPCD *cpcd, int poll) {
- m_cpcd = cpcd;
- m_pollingInterval = poll;
- m_changeCondition = NdbCondition_Create();
- m_changeMutex = NdbMutex_Create();
- m_monitorThread = NdbThread_Create(monitor_thread_create_wrapper,
- (NDB_THREAD_ARG*) this,
- 32768,
- "ndb_cpcd_monitor",
- NDB_THREAD_PRIO_MEAN);
- m_monitorThreadQuitFlag = false;
- }
- CPCD::Monitor::~Monitor() {
- NdbThread_Destroy(&m_monitorThread);
- NdbCondition_Destroy(m_changeCondition);
- NdbMutex_Destroy(m_changeMutex);
- }
- void
- CPCD::Monitor::run() {
- while(1) {
- NdbMutex_Lock(m_changeMutex);
- NdbCondition_WaitTimeout(m_changeCondition,
- m_changeMutex,
- m_pollingInterval * 1000);
- MutexVector<CPCD::Process *> &proc = *m_cpcd->getProcessList();
- proc.lock();
- for(size_t i = 0; i < proc.size(); i++) {
- proc[i]->monitor();
- }
- proc.unlock();
- NdbMutex_Unlock(m_changeMutex);
- }
- }
- void
- CPCD::Monitor::signal() {
- NdbCondition_Signal(m_changeCondition);
- }
- template class MutexVector<CPCD::Process*>;