101 lines
2.2 KiB
C++
101 lines
2.2 KiB
C++
/* event.cpp */
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/**
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* Copyright - See the COPYRIGHT that is included with this distribution.
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* EPICS pvDataCPP is distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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*/
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#include <cstddef>
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#include <cstdlib>
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#include <cstddef>
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#include <string>
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#include <cstdio>
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#include <stdexcept>
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#include <memory>
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#include <vector>
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#include <epicsThread.h>
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#include <epicsMutex.h>
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#include <epicsEvent.h>
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#include "noDefaultMethods.h"
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#include "pvType.h"
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#include "lock.h"
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#include "event.h"
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#include "showConstructDestruct.h"
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namespace epics { namespace pvData {
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static Mutex globalMutex;
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static volatile int64 totalConstruct = 0;
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static volatile int64 totalDestruct = 0;
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static bool notInited = true;
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static String alreadyOn("already on list");
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static int64 getTotalConstruct()
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{
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Lock xx(&globalMutex);
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return totalConstruct;
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}
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static int64 getTotalDestruct()
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{
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Lock xx(&globalMutex);
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return totalDestruct;
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}
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static void init()
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{
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Lock xx(&globalMutex);
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if(notInited) {
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notInited = false;
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ShowConstructDestruct::registerCallback(
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String("event"),
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getTotalConstruct,getTotalDestruct,0,0);
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}
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}
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Event::~Event() {
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epicsEventDestroy(id);
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id = 0;
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Lock xx(&globalMutex);
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totalDestruct++;
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}
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Event::Event(bool full)
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: id(epicsEventCreate(full?epicsEventFull : epicsEventEmpty))
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{
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init();
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Lock xx(&globalMutex);
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totalConstruct++;
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}
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void Event::signal()
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{
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if(id==0) throw std::logic_error(String("event was deleted"));
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epicsEventSignal(id);
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}
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bool Event::wait ()
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{
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if(id==0) throw std::logic_error(String("event was deleted"));
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epicsEventWaitStatus status = epicsEventWait(id);
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return status==epicsEventWaitOK ? true : false;
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}
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bool Event::wait ( double timeOut )
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{
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if(id==0) throw std::logic_error(String("event was deleted"));
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epicsEventWaitStatus status = epicsEventWaitWithTimeout(id,timeOut);
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return status==epicsEventWaitOK ? true : false;
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}
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bool Event::tryWait ()
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{
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if(id==0) throw std::logic_error(String("event was deleted"));
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epicsEventWaitStatus status = epicsEventTryWait(id);
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return status==epicsEventWaitOK ? true : false;
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}
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}}
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