epics/pcas
0
0
Fork 0
Code Issues Pull Requests Projects Wiki Activity

cleaned up implementation of locks

Browse Source
This commit is contained in:
Jeff Hill
2001-03-23 23:00:03 +00:00
parent 02c05f38b1
commit b1d14576c5
7 changed files with 119 additions and 146 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
src/db/dbServiceIO.cpp
View File

@@ -75,12 +75,25 @@ cacChannelIO *dbServiceIO::createChannelIO (
}
}
void dbServiceIO::subscriptionUpdate ( struct dbAddr &addr,
void dbServiceIO::callReadNotify ( struct dbAddr &addr,
unsigned type, unsigned long count,
const struct db_field_log *pfl, dbSubscriptionIO &io )
const struct db_field_log *pfl,
cacChannelIO &chan, cacNotify &notify )
{
unsigned long size = dbr_size_n ( type, count );
if ( type > INT_MAX ) {
notify.exceptionNotify ( chan, ECA_BADTYPE,
"type code out of range (high side)" );
return;
}
if ( count > INT_MAX ) {
notify.exceptionNotify ( chan, ECA_BADCOUNT,
"element count out of range (high side)" );
return;
}
epicsAutoMutex locker ( this->mutex );
if ( this->eventCallbackCacheSize < size) {
@@ -90,7 +103,7 @@ void dbServiceIO::subscriptionUpdate ( struct dbAddr &addr,
this->pEventCallbackCache = new char [size];
if ( ! this->pEventCallbackCache ) {
this->eventCallbackCacheSize = 0ul;
io.notify ().exceptionNotify ( io.channelIO (), ECA_ALLOCMEM,
notify.exceptionNotify ( chan, ECA_ALLOCMEM,
"unable to allocate callback cache" );
return;
}
@@ -100,11 +113,11 @@ void dbServiceIO::subscriptionUpdate ( struct dbAddr &addr,
int status = db_get_field ( &addr, static_cast <int> ( type ),
this->pEventCallbackCache, static_cast <int> ( count ), pvfl );
if ( status ) {
io.notify ().exceptionNotify ( io.channelIO (), ECA_GETFAIL,
"subscription update db_get_field () completed unsuccessfuly" );
notify.exceptionNotify ( chan, ECA_GETFAIL,
"db_get_field() completed unsuccessfuly" );
}
else {
io.notify ().completionNotify ( io.channelIO (), type,
notify.completionNotify ( chan, type,
count, this->pEventCallbackCache );
}
}