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Fixed wait for handshake

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Justin Ethier 2015-11-18 01:21:44 -05:00
parent b609e1556f
commit 56c9d48c89
1 changed files with 11 additions and 6 deletions
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17
gc.c
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@ -532,16 +532,16 @@ void gc_mut_update(gc_thread_data *thd, object old_obj, object value)
int status = ATOMIC_GET(&gc_status_col), int status = ATOMIC_GET(&gc_status_col),
stage = ATOMIC_GET(&gc_stage); stage = ATOMIC_GET(&gc_stage);
if (thd->gc_status != STATUS_ASYNC) { if (thd->gc_status != STATUS_ASYNC) {
printf("DEBUG - GC sync marking heap obj "); printf("DEBUG - GC sync marking heap obj %p ", old_obj);
Cyc_display(old_obj, stdout); Cyc_display(old_obj, stdout);
printf(" and new value "); printf(" and new value %p ", value);
Cyc_display(value, stdout); Cyc_display(value, stdout);
//printf(" for heap object "); //printf(" for heap object ");
printf("\n"); printf("\n");
gc_mark_gray(thd, old_obj); gc_mark_gray(thd, old_obj);
gc_mark_gray(thd, value); gc_mark_gray(thd, value);
} else if (stage == STAGE_TRACING) { } else if (stage == STAGE_TRACING) {
printf("DEBUG - GC async tracing marking heap obj "); printf("DEBUG - GC async tracing marking heap obj %p ", old_obj);
Cyc_display(old_obj, stdout); Cyc_display(old_obj, stdout);
printf("\n"); printf("\n");
gc_mark_gray(thd, old_obj); gc_mark_gray(thd, old_obj);
@ -777,9 +777,14 @@ void gc_wait_handshake()
// TODO: same as in other places, need to either sync access to // TODO: same as in other places, need to either sync access to
// mutator vars, or ensure only the collector uses them // mutator vars, or ensure only the collector uses them
for (i = 0; i < Cyc_num_mutators; i++) { for (i = 0; i < Cyc_num_mutators; i++) {
statusc = ATOMIC_GET(&gc_status_col); while (1) {
statusm = ATOMIC_GET(&(Cyc_mutators[i]->gc_status)); statusc = ATOMIC_GET(&gc_status_col);
if (statusc != statusm) { statusm = ATOMIC_GET(&(Cyc_mutators[i]->gc_status));
if (statusc == statusm) {
// Handshake succeeded, check next mutator
break;
}
// At least for now, just give up quantum and come back to // At least for now, just give up quantum and come back to
// this quickly to test again. This probably could be more // this quickly to test again. This probably could be more
// efficient. // efficient.