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dont hold lock while calling callbacks

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This commit is contained in:
Jeff Hill
2001-04-16 22:51:37 +00:00
parent 332a7228a8
commit f69a65a4fe
10 changed files with 358 additions and 434 deletions
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54
src/db/dbSubscriptionIO.cpp
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@@ -18,10 +18,11 @@
#include "limits.h"
#include "epicsMutex.h"
#include "epicsEvent.h"
#include "tsFreeList.h"
#include "cadef.h"
#include "cacIO.h"
#include "db_access.h" // need to eliminate this
#define epicsExportSharedSymbols
#include "dbCAC.h"
@@ -31,11 +32,17 @@
tsFreeList < dbSubscriptionIO > dbSubscriptionIO::freeList;
epicsMutex dbSubscriptionIO::freeListMutex;
dbSubscriptionIO::dbSubscriptionIO ( dbChannelIO &chanIO,
cacNotify &notifyIn, unsigned typeIn, unsigned long countIn ) :
cacNotifyIO ( notifyIn ), chan ( chanIO ), es ( 0 ),
type ( typeIn ), count ( countIn )
dbSubscriptionIO::dbSubscriptionIO ( dbServiceIO &serviceIO, dbChannelIO &chanIO,
dbAddr &addr, cacDataNotify &notifyIn,
unsigned typeIn, unsigned long countIn, unsigned maskIn,
cacChannel::ioid * pId ) :
notify ( notifyIn ), chan ( chanIO ), es ( 0 ),
type ( typeIn ), count ( countIn ), id ( 0u )
{
this->es = serviceIO.subscribe ( addr, chanIO, *this, maskIn, pId );
if ( ! this->es ) {
throw cacChannel::noMemory();
}
}
dbSubscriptionIO::~dbSubscriptionIO ()
@@ -50,17 +57,6 @@ void dbSubscriptionIO::destroy ()
delete this;
}
void dbSubscriptionIO::cancel ()
{
this->chan.uninstallSubscription ( *this );
delete this;
}
cacChannelIO & dbSubscriptionIO::channelIO () const
{
return this->chan;
}
void * dbSubscriptionIO::operator new ( size_t size )
{
epicsAutoMutex locker ( dbSubscriptionIO::freeListMutex );
@@ -77,24 +73,7 @@ extern "C" void dbSubscriptionEventCallback ( void *pPrivate, struct dbAddr * /*
int /* eventsRemaining */, struct db_field_log *pfl )
{
dbSubscriptionIO *pIO = static_cast < dbSubscriptionIO * > ( pPrivate );
pIO->chan.callReadNotify ( pIO->type, pIO->count, pfl, pIO->notify() );
}
int dbSubscriptionIO::begin ( unsigned mask )
{
if ( this->type > INT_MAX ) {
return ECA_BADCOUNT;
}
if ( this->count > INT_MAX ) {
return ECA_BADCOUNT;
}
this->es = this->chan.subscribe ( *this, mask );
if ( this->es ) {
return ECA_NORMAL;
}
else {
return ECA_ALLOCMEM;
}
pIO->chan.callReadNotify ( pIO->type, pIO->count, pfl, pIO->notify );
}
void dbSubscriptionIO::show ( unsigned level ) const
@@ -115,3 +94,10 @@ void dbSubscriptionIO::show ( unsigned level ) const
}
}
}
dbSubscriptionIO * dbSubscriptionIO::isSubscription ()
{
return this;
}