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/* 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; version 2 of the License.
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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*>;
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