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many changes associated will disconnecting the channel but not disconnecting the circuit

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This commit is contained in:
Jeff Hill
2004-01-09 00:42:15 +00:00
parent 60dde019c0
commit f04fa5fdf3
62 changed files with 3591 additions and 2586 deletions
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69
src/db/dbSubscriptionIO.cpp
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@@ -41,37 +41,57 @@
#include "dbChannelIO.h"
#include "db_access_routines.h"
dbSubscriptionIO::dbSubscriptionIO ( dbServiceIO & /* serviceIO */, dbChannelIO & chanIO,
dbAddr & addr, cacStateNotify & notifyIn, unsigned typeIn, unsigned long countIn,
unsigned maskIn, dbEventCtx ctx ) :
notify ( notifyIn ), chan ( chanIO ), es ( 0 ),
type ( typeIn ), count ( countIn ), id ( 0u )
dbSubscriptionIO::dbSubscriptionIO (
epicsGuard < epicsMutex > & guard, epicsMutex & mutexIn,
dbContext &, dbChannelIO & chanIO,
dbAddr & addr, cacStateNotify & notifyIn, unsigned typeIn,
unsigned long countIn, unsigned maskIn, dbEventCtx ctx ) :
mutex ( mutexIn ), count ( countIn ), notify ( notifyIn ),
chan ( chanIO ), es ( 0 ), type ( typeIn ), id ( 0u )
{
this->es = db_add_event ( ctx, & addr,
dbSubscriptionEventCallback, (void *) this, maskIn );
if ( this->es == 0 ) {
throw std::bad_alloc();
guard.assertIdenticalMutex ( this->mutex );
{
epicsGuardRelease < epicsMutex > unguard ( guard );
this->es = db_add_event ( ctx, & addr,
dbSubscriptionEventCallback, (void *) this, maskIn );
if ( this->es == 0 ) {
throw std::bad_alloc();
}
db_post_single_event ( this->es );
db_event_enable ( this->es );
}
db_post_single_event ( this->es );
db_event_enable ( this->es );
}
dbSubscriptionIO::~dbSubscriptionIO ()
dbSubscriptionIO::~dbSubscriptionIO ()
{
this->unsubscribe ();
}
void dbSubscriptionIO::unsubscribe ()
void dbSubscriptionIO::destructor ( epicsGuard < epicsMutex > & guard )
{
guard.assertIdenticalMutex ( this->mutex );
this->unsubscribe ( guard );
this->~dbSubscriptionIO ();
}
void dbSubscriptionIO::unsubscribe (
epicsGuard < epicsMutex > & guard )
{
guard.assertIdenticalMutex ( this->mutex );
if ( this->es ) {
db_cancel_event ( this->es );
dbEventSubscription tmp = this->es;
this->es = 0;
{
epicsGuardRelease < epicsMutex > unguard ( guard );
db_cancel_event ( tmp );
}
}
}
void dbSubscriptionIO::channelDeleteException ()
void dbSubscriptionIO::channelDeleteException (
epicsGuard < epicsMutex > & guard )
{
this->notify.exception ( ECA_CHANDESTROY,
guard.assertIdenticalMutex ( this->mutex );
this->notify.exception ( guard, ECA_CHANDESTROY,
this->chan.pName(), this->type, this->count );
}
@@ -94,14 +114,14 @@ void dbSubscriptionIO::operator delete ( void * )
}
void * dbSubscriptionIO::operator new ( size_t size,
tsFreeList < dbSubscriptionIO > & freeList )
tsFreeList < dbSubscriptionIO, 256, epicsMutexNOOP > & freeList )
{
return freeList.allocate ( size );
}
#ifdef CXX_PLACEMENT_DELETE
void dbSubscriptionIO::operator delete ( void * pCadaver,
tsFreeList < dbSubscriptionIO > & freeList )
tsFreeList < dbSubscriptionIO, 256, epicsMutexNOOP > & freeList )
{
freeList.release ( pCadaver );
}
@@ -110,12 +130,21 @@ void dbSubscriptionIO::operator delete ( void * pCadaver,
extern "C" void dbSubscriptionEventCallback ( void *pPrivate, struct dbAddr * /* paddr */,
int /* eventsRemaining */, struct db_field_log *pfl )
{
dbSubscriptionIO *pIO = static_cast < dbSubscriptionIO * > ( pPrivate );
dbSubscriptionIO * pIO = static_cast < dbSubscriptionIO * > ( pPrivate );
pIO->chan.callStateNotify ( pIO->type, pIO->count, pfl, pIO->notify );
}
void dbSubscriptionIO::show ( unsigned level ) const
{
epicsGuard < epicsMutex > guard ( this->mutex );
this->show ( guard, level );
}
void dbSubscriptionIO::show (
epicsGuard < epicsMutex > & guard, unsigned level ) const
{
guard.assertIdenticalMutex ( this->mutex );
printf ( "Data base subscription IO at %p\n",
static_cast <const void *> ( this ) );
if ( level > 0u ) {