MonetDB: default - don't deadlock on the mal_profileLock

[Niels Nes]

Changeset: e4939b7dffb4 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/e4939b7dffb4
Modified Files:
        monetdb5/mal/mal_profiler.c
Branch: default
Log Message:

don't deadlock on the mal_profileLock


diffs (17 lines):

diff --git a/monetdb5/mal/mal_profiler.c b/monetdb5/mal/mal_profiler.c
--- a/monetdb5/mal/mal_profiler.c
+++ b/monetdb5/mal/mal_profiler.c
@@ -677,9 +677,12 @@ openProfilerStream(Client cntxt)
                m = workingset[j].mb;
                s = workingset[j].stk;
                p =  workingset[j].pci;
-               if( c && m && s && p )
+               if( c && m && s && p ) {
                        /* show the event  assuming the quadruple is aligned*/
+                       MT_lock_unset(&mal_profileLock);
                        profilerEvent(c, m, s, p, 1);
+                       MT_lock_set(&mal_profileLock);
+               }
        }
        MT_lock_unset(&mal_profileLock);
        return MAL_SUCCEED;
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