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cache the client ctx ref prior to calling callback in case they delete the

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channel in the callback
This commit is contained in:
Jeff Hill
2009-08-13 22:46:47 +00:00
parent 0cea525682
commit b867dabad0
1 changed files with 8 additions and 2 deletions
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10
src/ca/getCopy.cpp
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@@ -65,24 +65,30 @@ void getCopy::completion (
memcpy ( this->pValue, pDataIn, size );
this->cacCtx.decrementOutstandingIO ( guard, this->ioSeqNo );
this->cacCtx.destroyGetCopy ( guard, *this );
// this object destroyed by preceding function call
}
else {
this->exception ( guard, ECA_INTERNAL,
"bad data type match in get copy back response",
typeIn, countIn);
// this object destroyed by preceding function call
}
}
void getCopy::exception (
epicsGuard < epicsMutex > & guard,
int status, const char *pContext, unsigned /* typeIn */, arrayElementCount /* countIn */ )
int status, const char *pContext,
unsigned /* typeIn */, arrayElementCount /* countIn */ )
{
oldChannelNotify & chanTmp ( this->chan );
unsigned typeTmp ( this->type );
arrayElementCount countTmp ( this->count );
ca_client_context & caClientCtx ( this->cacCtx );
// fetch client context and destroy prior to releasing
// the lock and calling cb in case they destroy channel there
this->cacCtx.destroyGetCopy ( guard, *this );
if ( status != ECA_CHANDESTROY ) {
this->cacCtx.exception ( guard, status, pContext,
caClientCtx.exception ( guard, status, pContext,
__FILE__, __LINE__, chanTmp, typeTmp,
countTmp, CA_OP_GET );
}