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added cacMessageProcessingMinder class

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This commit is contained in:
Jeff Hill
2003-04-16 23:01:34 +00:00
parent 0fd1f0103d
commit f484488842
3 changed files with 78 additions and 45 deletions
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src/ca/tcpiiu.cpp
+53 -39
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@@ -323,49 +323,49 @@ void tcpRecvThread::run ()
// - it take also the callback lock
this->iiu.recvDog.messageArrivalNotify ( currentTime );
this->iiu.cacRef.messageArrivalNotify ();
cacMessageProcessingMinder msgProcMinder ( this->iiu.cacRef );
{
// only one recv thread at a time may call callbacks
// - pendEvent() blocks until threads waiting for
// this lock get a chance to run
epicsGuard < callbackMutex > guard ( this->cbMutex );
// only one recv thread at a time may call callbacks
// - pendEvent() blocks until threads waiting for
// this lock get a chance to run
epicsGuard < callbackMutex > guard ( this->cbMutex );
// force the receive watchdog to be reset every 5 frames
unsigned contiguousFrameCount = 0;
while ( nBytesIn ) {
if ( nBytesIn == pComBuf->capacityBytes () ) {
if ( this->iiu.contigRecvMsgCount >=
contiguousMsgCountWhichTriggersFlowControl ) {
this->iiu.busyStateDetected = true;
// force the receive watchdog to be reset every 5 frames
unsigned contiguousFrameCount = 0;
while ( nBytesIn ) {
if ( nBytesIn == pComBuf->capacityBytes () ) {
if ( this->iiu.contigRecvMsgCount >=
contiguousMsgCountWhichTriggersFlowControl ) {
this->iiu.busyStateDetected = true;
}
else {
this->iiu.contigRecvMsgCount++;
}
}
else {
this->iiu.contigRecvMsgCount++;
else {
this->iiu.contigRecvMsgCount = 0u;
this->iiu.busyStateDetected = false;
}
this->iiu.unacknowledgedSendBytes = 0u;
this->iiu.recvQue.pushLastComBufReceived ( *pComBuf );
pComBuf = new ( this->iiu.comBufMemMgr ) comBuf;
// execute receive labor
bool protocolOK = this->iiu.processIncoming ( currentTime, guard );
if ( ! protocolOK ) {
this->iiu.cacRef.initiateAbortShutdown ( this->iiu );
break;
}
if ( ! this->iiu.bytesArePendingInOS ()
|| ++contiguousFrameCount > 5 ) {
break;
}
nBytesIn = pComBuf->fillFromWire ( this->iiu );
}
else {
this->iiu.contigRecvMsgCount = 0u;
this->iiu.busyStateDetected = false;
}
this->iiu.unacknowledgedSendBytes = 0u;
this->iiu.recvQue.pushLastComBufReceived ( *pComBuf );
pComBuf = new ( this->iiu.comBufMemMgr ) comBuf;
// execute receive labor
bool protocolOK = this->iiu.processIncoming ( currentTime, guard );
if ( ! protocolOK ) {
this->iiu.cacRef.initiateAbortShutdown ( this->iiu );
break;
}
if ( ! this->iiu.bytesArePendingInOS ()
|| ++contiguousFrameCount > 5 ) {
break;
}
nBytesIn = pComBuf->fillFromWire ( this->iiu );
}
this->iiu.cacRef.messageProcessingCompleteNotify ();
}
if ( pComBuf ) {
@@ -373,8 +373,22 @@ void tcpRecvThread::run ()
this->iiu.comBufMemMgr.release ( pComBuf );
}
}
catch ( std::bad_alloc & ) {
errlogPrintf (
"CA client library tcp receive thread "
"terminating due to no space in pool "
"C++ exception\n" );
}
catch ( std::exception & except ) {
errlogPrintf (
"CA client library tcp receive thread "
"terminating due to C++ exception \"%s\"\n",
except.what () );
}
catch ( ... ) {
errlogPrintf ( "cac tcp receive thread terminating due to a c++ exception\n" );
errlogPrintf (
"CA client library tcp receive thread "
"terminating due to a C++ exception\n" );
}
// Although this is redundant in certain situations it is