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osiTimer => epicsTimer

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This commit is contained in:
Jeff Hill
2001-03-08 21:32:56 +00:00
parent 272029ae1a
commit cbabe522e1
16 changed files with 395 additions and 641 deletions
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src/cas/example/simple/exAsyncPV.cc
+53 -25
View File
@@ -20,7 +20,7 @@ caStatus exAsyncPV::read (const casCtx &ctx, gdd &valueIn)
this->simultAsychIOCount++;
pIO = new exAsyncReadIO(ctx, *this, valueIn);
pIO = new exAsyncReadIO ( ctx, *this, valueIn );
if (!pIO) {
return S_casApp_noMemory;
}
@@ -32,18 +32,18 @@ caStatus exAsyncPV::read (const casCtx &ctx, gdd &valueIn)
// exAsyncPV::write()
// (virtual replacement for the default)
//
caStatus exAsyncPV::write (const casCtx &ctx, const gdd &valueIn)
caStatus exAsyncPV::write ( const casCtx &ctx, const gdd &valueIn )
{
exAsyncWriteIO *pIO;
exAsyncWriteIO *pIO;
if (this->simultAsychIOCount>=maxSimultAsyncIO) {
if ( this->simultAsychIOCount >= maxSimultAsyncIO ) {
return S_casApp_postponeAsyncIO;
}
this->simultAsychIOCount++;
pIO = new exAsyncWriteIO(ctx, *this, valueIn);
if (!pIO) {
pIO = new exAsyncWriteIO ( ctx, *this, valueIn );
if ( ! pIO ) {
return S_casApp_noMemory;
}
@@ -51,29 +51,63 @@ caStatus exAsyncPV::write (const casCtx &ctx, const gdd &valueIn)
}
//
// exAsyncWriteIO::expire()
// (a virtual function that runs when the base timer expires)
// exAsyncWriteIO::exAsyncWriteIO()
//
void exAsyncWriteIO::expire()
exAsyncWriteIO::exAsyncWriteIO ( const casCtx &ctxIn, exAsyncPV &pvIn,
const gdd &valueIn ) :
casAsyncWriteIO ( ctxIn ), pv ( pvIn ),
timer ( pvIn.getCAS()->timerQueue().createTimer ( *this ) ), pValue(valueIn)
{
caStatus status;
status = this->pv.update(this->pValue);
this->postIOCompletion (status);
this->timer.start ( 0.1 );
}
//
// exAsyncWriteIO::name()
// exAsyncWriteIO::~exAsyncWriteIO()
//
const char *exAsyncWriteIO::name() const
exAsyncWriteIO::~exAsyncWriteIO()
{
return "exAsyncWriteIO";
this->pv.removeIO();
delete & this->timer;
}
//
// exAsyncWriteIO::expire()
// (a virtual function that runs when the base timer expires)
//
epicsTimerNotify::expireStatus exAsyncWriteIO::expire ()
{
caStatus status;
status = this->pv.update ( this->pValue );
this->postIOCompletion ( status );
return noRestart;
}
//
// exAsyncReadIO::exAsyncReadIO()
//
exAsyncReadIO::exAsyncReadIO ( const casCtx &ctxIn, exAsyncPV &pvIn,
gdd &protoIn ) :
casAsyncReadIO ( ctxIn ), pv ( pvIn ),
timer ( pvIn.getCAS()->timerQueue().createTimer(*this) ), pProto ( protoIn )
{
this->timer.start ( 0.1 );
}
//
// exAsyncReadIO::~exAsyncReadIO()
//
exAsyncReadIO::~exAsyncReadIO()
{
this->pv.removeIO ();
delete & this->timer;
}
//
// exAsyncReadIO::expire()
// (a virtual function that runs when the base timer expires)
//
void exAsyncReadIO::expire ()
epicsTimerNotify::expireStatus exAsyncReadIO::expire ()
{
caStatus status;
@@ -81,19 +115,13 @@ void exAsyncReadIO::expire ()
// map between the prototype in and the
// current value
//
status = this->pv.exPV::readNoCtx (this->pProto);
status = this->pv.exPV::readNoCtx ( this->pProto );
//
// post IO completion
//
this->postIOCompletion (status, *this->pProto );
}
this->postIOCompletion ( status, *this->pProto );
//
// exAsyncReadIO::name()
//
const char *exAsyncReadIO::name() const
{
return "exAsyncReadIO";
return noRestart;
}
src/cas/example/simple/exPV.cc
+24 -78
View File
@@ -21,11 +21,12 @@ class exFixedStringDestructor: public gddDestructor {
//
// exPV::exPV()
//
exPV::exPV (pvInfo &setup, bool preCreateFlag, bool scanOnIn) :
info (setup),
interest (false),
preCreate (preCreateFlag),
scanOn (scanOnIn)
exPV::exPV ( pvInfo &setup, bool preCreateFlag, bool scanOnIn ) :
timer ( this->getCAS()->timerQueue().createTimer(*this) ),
info ( setup ),
interest ( false ),
preCreate ( preCreateFlag ),
scanOn ( scanOnIn )
{
//
// no dataless PV allowed
@@ -38,12 +39,8 @@ exPV::exPV (pvInfo &setup, bool preCreateFlag, bool scanOnIn) :
// someone is watching the PV)
//
if ( this->scanOn && this->info.getScanPeriod () > 0.0 ) {
this->pScanTimer =
new exScanTimer (this->getScanPeriod(), *this);
this->timer.start ( this->getScanPeriod() );
}
else {
this->pScanTimer = 0;
}
}
//
@@ -51,10 +48,7 @@ exPV::exPV (pvInfo &setup, bool preCreateFlag, bool scanOnIn) :
//
exPV::~exPV()
{
if (this->pScanTimer) {
delete this->pScanTimer;
this->pScanTimer = NULL;
}
delete & this->timer;
this->info.unlinkPV();
}
@@ -66,7 +60,7 @@ exPV::~exPV()
//
void exPV::destroy()
{
if (!this->preCreate) {
if ( ! this->preCreate ) {
delete this;
}
}
@@ -100,44 +94,18 @@ caStatus exPV::update(smartConstGDDPointer pValueIn)
return S_casApp_success;
}
//
// exScanTimer::~exScanTimer ()
//
exScanTimer::~exScanTimer ()
{
pv.pScanTimer = NULL;
}
//
// exScanTimer::expire ()
//
void exScanTimer::expire ()
epicsTimerNotify::expireStatus exPV::expire ()
{
pv.scan();
}
//
// exScanTimer::again()
//
bool exScanTimer::again() const
{
return true;
}
//
// exScanTimer::delay()
//
double exScanTimer::delay() const
{
return pv.getScanPeriod();
}
//
// exScanTimer::name()
//
const char *exScanTimer::name() const
{
return "exScanTimer";
this->scan();
if ( this->scanOn ) {
return expireStatus ( restart, this->getScanPeriod() );
}
else {
return noRestart;
}
}
//
@@ -153,34 +121,16 @@ aitEnum exPV::bestExternalType() const
//
caStatus exPV::interestRegister()
{
caServer *pCAS = this->getCAS();
caServer *pCAS = this->getCAS();
if (!pCAS) {
if ( ! pCAS ) {
return S_casApp_success;
}
this->interest = true;
if (!this->scanOn) {
return S_casApp_success;
}
//
// If a slow scan is pending then reschedule it
// with the specified scan period.
//
if (this->pScanTimer) {
this->pScanTimer->reschedule(this->getScanPeriod());
}
else if ( this->getScanPeriod () > 0.0 ) {
this->pScanTimer = new exScanTimer
(this->getScanPeriod(), *this);
if (!this->pScanTimer) {
errPrintf (S_cas_noMemory, __FILE__, __LINE__,
"Scan init for %s failed\n",
this->info.getName());
return S_cas_noMemory;
}
if ( this->scanOn && this->getScanPeriod() < this->timer.getExpireDelay() ) {
this->timer.start ( this->getScanPeriod() );
}
return S_casApp_success;
@@ -192,15 +142,12 @@ caStatus exPV::interestRegister()
void exPV::interestDelete()
{
this->interest = false;
if (this->pScanTimer && this->scanOn) {
this->pScanTimer->reschedule(this->getScanPeriod());
}
}
//
// exPV::show()
//
void exPV::show(unsigned level) const
void exPV::show ( unsigned level ) const
{
if (level>1u) {
if ( this->pValue.valid () ) {
@@ -209,8 +156,7 @@ void exPV::show(unsigned level) const
printf ( "exPV: value=%f\n", static_cast < double > ( * this->pValue ) );
}
printf ( "exPV: interest=%d\n", this->interest );
printf ( "exPV: pScanTimer=%p\n",
static_cast < const void * > ( this->pScanTimer ) );
this->timer.show ( level - 1u );
}
}
@@ -219,7 +165,7 @@ void exPV::show(unsigned level) const
//
void exPV::initFT()
{
if (exPV::hasBeenInitialized) {
if ( exPV::hasBeenInitialized ) {
return;
}
src/cas/example/simple/exServer.cc
+52 -32
View File
@@ -47,7 +47,8 @@ pvInfo exServer::billy (-1.0, "billy", 10.0f, -10.0f, excasIoAsync, 1u);
//
// exServer::exServer()
//
exServer::exServer(const char * const pvPrefix, unsigned aliasCount, bool scanOnIn) :
exServer::exServer ( const char * const pvPrefix,
unsigned aliasCount, bool scanOnIn ) :
caServer (pvListNElem+2u),
stringResTbl (pvListNElem*(aliasCount+1u)+2u),
simultAsychIOCount (0u),
@@ -176,7 +177,7 @@ pvExistReturn exServer::pvExistTest
this->simultAsychIOCount++;
exAsyncExistIO *pIO;
pIO = new exAsyncExistIO(pvi, ctxIn, *this);
pIO = new exAsyncExistIO ( pvi, ctxIn, *this );
if (pIO) {
return pverAsyncCompletion;
}
@@ -242,7 +243,7 @@ pvAttachReturn exServer::pvAttach
//
// pvInfo::createPV()
//
exPV *pvInfo::createPV (exServer &, bool preCreateFlag, bool scanOn)
exPV *pvInfo::createPV ( exServer &cas, bool preCreateFlag, bool scanOn )
{
if (this->pPV) {
return this->pPV;
@@ -258,10 +259,10 @@ exPV *pvInfo::createPV (exServer &, bool preCreateFlag, bool scanOn)
if (this->elementCount==1u) {
switch (this->ioType){
case excasIoSync:
pNewPV = new exScalarPV (*this, preCreateFlag, scanOn);
pNewPV = new exScalarPV ( *this, preCreateFlag, scanOn );
break;
case excasIoAsync:
pNewPV = new exAsyncPV (*this, preCreateFlag, scanOn);
pNewPV = new exAsyncPV ( *this, preCreateFlag, scanOn );
break;
default:
pNewPV = NULL;
@@ -269,8 +270,8 @@ exPV *pvInfo::createPV (exServer &, bool preCreateFlag, bool scanOn)
}
}
else {
if (this->ioType==excasIoSync) {
pNewPV = new exVectorPV (*this, preCreateFlag, scanOn);
if ( this->ioType == excasIoSync ) {
pNewPV = new exVectorPV ( *this, preCreateFlag, scanOn );
}
else {
pNewPV = NULL;
@@ -312,56 +313,75 @@ void exServer::show (unsigned level) const
}
//
// this is a noop that postpones the timer expiration
// destroy so the exAsyncIO class will hang around until the
// casAsyncIO::destroy() is called
// exAsyncExistIO::exAsyncExistIO()
//
void exOSITimer::destroy()
exAsyncExistIO::exAsyncExistIO ( const pvInfo &pviIn, const casCtx &ctxIn,
exServer &casIn ) :
casAsyncPVExistIO ( ctxIn ), pvi ( pviIn ),
timer ( casIn.timerQueue().createTimer ( *this ) ), cas ( casIn )
{
this->timer.start ( 0.00001 );
}
//
// exAsyncExistIO::~exAsyncExistIO()
//
exAsyncExistIO::~exAsyncExistIO()
{
this->cas.removeIO();
delete & this->timer;
}
//
// exAsyncExistIO::expire()
// (a virtual function that runs when the base timer expires)
//
void exAsyncExistIO::expire()
epicsTimerNotify::expireStatus exAsyncExistIO::expire ()
{
//
// post IO completion
//
this->postIOCompletion (pvExistReturn(pverExistsHere));
//
// post IO completion
//
this->postIOCompletion ( pvExistReturn(pverExistsHere) );
return noRestart;
}
//
// exAsyncCreateIO::exAsyncCreateIO()
//
exAsyncCreateIO::exAsyncCreateIO ( pvInfo &pviIn, exServer &casIn,
const casCtx &ctxIn, bool scanOnIn ) :
casAsyncPVAttachIO ( ctxIn ), pvi ( pviIn ),
timer ( casIn.timerQueue().createTimer ( *this ) ),
cas ( casIn ), scanOn ( scanOnIn )
{
this->timer.start ( 0.00001 );
}
//
// exAsyncExistIO::name()
// exAsyncCreateIO::~exAsyncCreateIO()
//
const char *exAsyncExistIO::name() const
exAsyncCreateIO::~exAsyncCreateIO()
{
return "exAsyncExistIO";
this->cas.removeIO ();
delete & this->timer;
}
//
// exAsyncCreateIO::expire()
// (a virtual function that runs when the base timer expires)
//
void exAsyncCreateIO::expire()
epicsTimerNotify::expireStatus exAsyncCreateIO::expire ()
{
exPV *pPV;
pPV = this->pvi.createPV(this->cas, false, this->scanOn);
if (pPV) {
this->postIOCompletion (pvAttachReturn(*pPV));
pPV = this->pvi.createPV ( this->cas, false, this->scanOn );
if ( pPV ) {
this->postIOCompletion ( pvAttachReturn ( *pPV ) );
}
else {
this->postIOCompletion (pvAttachReturn(S_casApp_noMemory));
this->postIOCompletion ( pvAttachReturn ( S_casApp_noMemory ) );
}
}
//
// exAsyncCreateIO::name()
//
const char *exAsyncCreateIO::name() const
{
return "exAsyncCreateIO";
return noRestart;
}
src/cas/example/simple/exServer.h
+57 -165
View File
@@ -29,10 +29,10 @@
//
// EPICS
//
#include "epicsTimer.h"
#include "casdef.h"
#include "epicsAssert.h"
#include "gddAppFuncTable.h"
#include "osiTimer.h"
#include "resourceLib.h"
#include "tsMinMax.h"
@@ -130,35 +130,16 @@ private:
exServer &cas;
};
//
// exScanTimer
//
class exScanTimer : public osiTimer {
public:
exScanTimer (double delayIn, exPV &pvIn) :
osiTimer(delayIn), pv(pvIn) {}
~exScanTimer();
void expire ();
bool again() const;
double delay() const;
const char *name() const;
private:
exPV &pv;
};
//
// exPV
//
class exPV : public casPV, public tsSLNode<exPV> {
// allow the exScanTimer destructor to set dangling pScanTimer pointer to NULL
friend exScanTimer::~exScanTimer();
class exPV : public casPV, public epicsTimerNotify, public tsSLNode<exPV> {
public:
exPV (pvInfo &setup, bool preCreateFlag, bool scanOn);
exPV ( pvInfo &setup, bool preCreateFlag, bool scanOn );
virtual ~exPV();
void show(unsigned level) const;
void show ( unsigned level ) const;
//
// Called by the server libary each time that it wishes to
@@ -204,8 +185,8 @@ public:
{
double curPeriod;
curPeriod = this->info.getScanPeriod();
if (!this->interest) {
curPeriod = this->info.getScanPeriod ();
if ( ! this->interest ) {
curPeriod *= 10.0L;
}
return curPeriod;
@@ -242,7 +223,7 @@ public:
protected:
smartConstGDDPointer pValue;
exScanTimer *pScanTimer;
epicsTimer &timer;
pvInfo & info;
bool interest;
bool preCreate;
@@ -252,6 +233,12 @@ protected:
virtual caStatus updateValue (smartConstGDDPointer pValue) = 0;
private:
//
// scan timer expire
//
expireStatus expire ();
//
// Std PV Attribute fetch support
//
@@ -274,8 +261,8 @@ private:
//
class exScalarPV : public exPV {
public:
exScalarPV (pvInfo &setup, bool preCreateFlag, bool scanOnIn) :
exPV (setup, preCreateFlag, scanOnIn) {}
exScalarPV ( pvInfo &setup, bool preCreateFlag, bool scanOnIn ) :
exPV ( setup, preCreateFlag, scanOnIn) {}
void scan();
private:
caStatus updateValue (smartConstGDDPointer pValue);
@@ -286,8 +273,8 @@ private:
//
class exVectorPV : public exPV {
public:
exVectorPV (pvInfo &setup, bool preCreateFlag, bool scanOnIn) :
exPV (setup, preCreateFlag, scanOnIn) {}
exVectorPV ( pvInfo &setup, bool preCreateFlag, bool scanOnIn ) :
exPV ( setup, preCreateFlag, scanOnIn) {}
void scan();
unsigned maxDimension() const;
@@ -302,7 +289,8 @@ private:
//
class exServer : public caServer {
public:
exServer(const char * const pvPrefix, unsigned aliasCount, bool scanOn);
exServer ( const char * const pvPrefix,
unsigned aliasCount, bool scanOn );
~exServer();
void show (unsigned level) const;
@@ -352,9 +340,9 @@ public:
//
// exAsyncPV()
//
exAsyncPV (pvInfo &setup, bool preCreateFlag, bool scanOnIn) :
exScalarPV (setup, preCreateFlag, scanOnIn),
simultAsychIOCount(0u) {}
exAsyncPV ( pvInfo &setup, bool preCreateFlag, bool scanOnIn ) :
exScalarPV ( setup, preCreateFlag, scanOnIn ),
simultAsychIOCount ( 0u ) {}
//
// read
@@ -398,120 +386,48 @@ public:
private:
};
//
// exOSITimer
//
// a special version of osiTimer which is only to be used
// within an exAsyncIO. The destroy() method is replaced
// so that the timer destroy() will not destroy the
// exAsyncIO until the casAsyncIO has completed
//
class exOSITimer : public osiTimer {
public:
exOSITimer (double delay) : osiTimer(delay) {}
//
// this is a noop that postpones the timer expiration
// destroy so this object will hang around until the
// casAsyncIO::destroy() is called
//
void destroy();
};
//
// exAsyncWriteIO
//
class exAsyncWriteIO : public casAsyncWriteIO, public exOSITimer {
class exAsyncWriteIO : public casAsyncWriteIO, public epicsTimerNotify {
public:
//
// exAsyncWriteIO()
//
exAsyncWriteIO (const casCtx &ctxIn, exAsyncPV &pvIn, const gdd &valueIn) :
casAsyncWriteIO(ctxIn), exOSITimer(0.1), pv(pvIn), pValue(valueIn)
{
}
~exAsyncWriteIO()
{
this->pv.removeIO();
}
//
// expire()
// (a virtual function that runs when the base timer expires)
// see exAsyncPV.cc
//
void expire();
const char *name() const;
exAsyncWriteIO ( const casCtx &ctxIn, exAsyncPV &pvIn, const gdd &valueIn );
~exAsyncWriteIO ();
private:
exAsyncPV &pv;
smartConstGDDPointer pValue;
exAsyncPV &pv;
epicsTimer &timer;
smartConstGDDPointer pValue;
expireStatus expire ();
};
//
// exAsyncReadIO
//
class exAsyncReadIO : public casAsyncReadIO, public exOSITimer {
class exAsyncReadIO : public casAsyncReadIO, public epicsTimerNotify {
public:
//
// exAsyncReadIO()
//
exAsyncReadIO(const casCtx &ctxIn, exAsyncPV &pvIn, gdd &protoIn) :
casAsyncReadIO(ctxIn), exOSITimer(0.1), pv(pvIn), pProto(protoIn)
{
}
~exAsyncReadIO()
{
this->pv.removeIO();
}
//
// expire()
// (a virtual function that runs when the base timer expires)
// see exAsyncPV.cc
//
void expire();
const char *name() const;
exAsyncReadIO ( const casCtx &ctxIn, exAsyncPV &pvIn, gdd &protoIn );
~exAsyncReadIO ();
private:
exAsyncPV &pv;
smartGDDPointer pProto;
exAsyncPV &pv;
epicsTimer &timer;
smartGDDPointer pProto;
expireStatus expire ();
};
//
// exAsyncExistIO
// (PV exist async IO)
//
class exAsyncExistIO : public casAsyncPVExistIO, public exOSITimer {
class exAsyncExistIO : public casAsyncPVExistIO, public epicsTimerNotify {
public:
//
// exAsyncExistIO()
//
exAsyncExistIO(const pvInfo &pviIn, const casCtx &ctxIn,
exServer &casIn) :
casAsyncPVExistIO(ctxIn), exOSITimer(0.00001), pvi(pviIn), cas(casIn) {}
~exAsyncExistIO()
{
this->cas.removeIO();
}
//
// expire()
// (a virtual function that runs when the base timer expires)
// see exServer.cc
//
void expire();
const char *name() const;
exAsyncExistIO ( const pvInfo &pviIn, const casCtx &ctxIn,
exServer &casIn );
~exAsyncExistIO ();
private:
const pvInfo &pvi;
exServer &cas;
const pvInfo &pvi;
epicsTimer &timer;
exServer &cas;
expireStatus expire ();
};
@@ -519,43 +435,27 @@ private:
// exAsyncCreateIO
// (PV create async IO)
//
class exAsyncCreateIO : public casAsyncPVAttachIO, public exOSITimer {
class exAsyncCreateIO : public casAsyncPVAttachIO, public epicsTimerNotify {
public:
//
// exAsyncCreateIO()
//
exAsyncCreateIO(pvInfo &pviIn, exServer &casIn,
const casCtx &ctxIn, bool scanOnIn) :
casAsyncPVAttachIO(ctxIn), exOSITimer(0.00001),
pvi(pviIn), cas(casIn), scanOn(scanOnIn) {}
~exAsyncCreateIO()
{
this->cas.removeIO();
}
//
// expire()
// (a virtual function that runs when the base timer expires)
// see exServer.cc
//
void expire();
const char *name() const;
exAsyncCreateIO ( pvInfo &pviIn, exServer &casIn,
const casCtx &ctxIn, bool scanOnIn );
~exAsyncCreateIO ();
private:
pvInfo &pvi;
epicsTimer &timer;
exServer &cas;
bool scanOn;
expireStatus expire ();
};
//
// exServer::removeAliasName()
//
inline void exServer::removeAliasName(pvEntry &entry)
inline void exServer::removeAliasName ( pvEntry &entry )
{
pvEntry *pE;
pE = this->stringResTbl.remove(entry);
assert(pE = &entry);
pE = this->stringResTbl.remove ( entry );
assert ( pE == &entry );
}
//
@@ -563,7 +463,7 @@ inline void exServer::removeAliasName(pvEntry &entry)
//
inline pvEntry::~pvEntry()
{
this->cas.removeAliasName(*this);
this->cas.removeAliasName ( *this );
}
//
@@ -571,28 +471,20 @@ inline pvEntry::~pvEntry()
//
inline void pvEntry::destroy ()
{
//
// always created with new (in this example)
//
delete this;
}
inline pvInfo::~pvInfo ()
{
//
// dont leak pre created PVs when we exit
//
if (this->pPV!=NULL) {
//
// always created with new (in this example)
//
if ( this->pPV != NULL ) {
delete this->pPV;
}
}
inline void pvInfo::deletePV ()
{
if (this->pPV!=NULL) {
if ( this->pPV != NULL ) {
delete this->pPV;
}
}
src/cas/example/simple/main.cc
+5 -5
View File
@@ -51,14 +51,14 @@ extern int main (int argc, const char **argv)
scanOn = false;
}
pCAS = new exServer (pvPrefix, aliasCount, scanOn);
if (!pCAS) {
pCAS = new exServer ( pvPrefix, aliasCount, scanOn );
if ( ! pCAS ) {
return (-1);
}
pCAS->setDebugLevel(debugLevel);
if (forever) {
if ( forever ) {
//
// loop here forever
//
@@ -72,8 +72,8 @@ extern int main (int argc, const char **argv)
// loop here untill the specified execution time
// expires
//
while (delay < executionTime) {
fileDescriptorManager.process(delay);
while ( delay < executionTime ) {
fileDescriptorManager.process ( delay );
delay = epicsTime::getCurrent() - begin;
}
}