Is this a bug fix?
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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--
Sjoerd Mullender
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