Sjoerd Mullender wrote:
> Is this a bug fix?
no bug report has been given, it is just a little more defensiveness.
>
> On 2009-05-23 11:56, Martin Kersten wrote:
>> Update of /cvsroot/monetdb/MonetDB5/src/mal
>> In directory 23jxhf1.ch3.sourceforge.com:/tmp/cvs-serv19871
>>
>> Modified Files:
>> mal_interpreter.mx
>> Log Message:
>> We better protect global variables in the interpreter.
>>
>>
>> U mal_interpreter.mx
>> Index: mal_interpreter.mx
>> ===================================================================
>> RCS file: /cvsroot/monetdb/MonetDB5/src/mal/mal_interpreter.mx,v
>> retrieving revision 1.303
>> retrieving revision 1.304
>> diff -u -d -r1.303 -r1.304
>> --- mal_interpreter.mx 16 May 2009 18:26:23 -0000 1.303
>> +++ mal_interpreter.mx 23 May 2009 09:55:57 -0000 1.304
>> @@ -734,11 +734,12 @@
>> #endif
>> @:performanceVariables@
>>
>> -#ifdef DEBUG_FLOW2
>> + pci = getInstrPtr(flow->mb, stkpc);
>> +#ifdef DEBUG_FLOW
>> stream_printf(cntxt->fdout,"#execute thread %d \n", tid);
>> + printInstruction(GDKstdout, flow->mb, 0, pci, LIST_MAL_ALL);
>> #endif
>> THRset_errbuf(THRget(THRgettid()), cntxt->errbuf); /* where to
>> leave errors */
>> - pci = getInstrPtr(flow->mb, stkpc);
>> if (stk->cmd || mb->trap) {
>> lng tm = 0;
>> if( oldtimer)
>> @@ -857,9 +858,13 @@
>> {
>> int i;
>>
>> - assert(worker == NULL);
>> + mal_set_lock(mal_contextLock, "DFLOWcreate");
>> + if ( work != NULL){
>> + mal_unset_lock(mal_contextLock, "DFLOWcreate");
>> + return;
>> + }
>>
>> - work = q_create(256);
>> + work = q_create(256); /* seems enough for the time being */
>>
>> nway = GDKnr_threads;
>> worker = (FlowTask *) GDKzalloc(sizeof(FlowTask)*nway);
>> @@ -868,6 +873,7 @@
>> /* create the thread and let it wait */
>> MT_create_thread(&worker[i].tid, runDFLOWworker, worker+i);
>> }
>> + mal_unset_lock(mal_contextLock, "DFLOWcreate");
>> }
>>
>> static void
>>
>>
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>
>
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