static void signal_child(MVMThreadContext *tc) {
MVMThread *child = tc->thread_obj->body.new_child;
/* if we still have it, its state will be UNABLE, so steal it. */
if (child) {
/* this will never return nonzero, because the child's status
* will always be UNABLE or STOLEN. */
signal_one_thread(tc, child->body.tc);
while (!MVM_trycas(&tc->thread_obj->body.new_child,
tc->thread_obj->body.new_child, NULL));
}
}
static MVMuint32 signal_all_but(MVMThreadContext *tc, MVMThread *t, MVMThread *tail) {
MVMInstance *ins = tc->instance;
MVMuint32 i;
MVMuint32 count = 0;
MVMThread *next;
if (!t) {
return 0;
}
do {
next = t->body.next;
switch (t->body.stage) {
case MVM_thread_stage_starting:
case MVM_thread_stage_waiting:
case MVM_thread_stage_started:
if (t->body.tc != tc) {
count += signal_one_thread(tc, t->body.tc);
}
break;
case MVM_thread_stage_exited:
GCORCH_LOG(tc, "Thread %d run %d : queueing to clear nursery of thread %d\n", t->body.tc->thread_id);
add_work(tc, t->body.tc);
break;
case MVM_thread_stage_clearing_nursery:
GCORCH_LOG(tc, "Thread %d run %d : queueing to destroy thread %d\n", t->body.tc->thread_id);
/* last GC run for this thread */
add_work(tc, t->body.tc);
break;
case MVM_thread_stage_destroyed:
GCORCH_LOG(tc, "Thread %d run %d : found a destroyed thread\n");
/* will be cleaned up (removed from the lists) shortly */
break;
default:
MVM_panic(MVM_exitcode_gcorch, "Corrupted MVMThread or running threads list: invalid thread stage %d", t->body.stage);
}
} while (next && (t = next));
if (tail)
MVM_WB(tc, t, tail);
t->body.next = tail;
return count;
}
static MVMuint32 signal_all_but(MVMThreadContext *tc, MVMThread *t, MVMThread *tail) {
MVMuint32 count = 0;
MVMThread *next;
if (!t) {
return 0;
}
do {
next = t->body.next;
switch (MVM_load(&t->body.stage)) {
case MVM_thread_stage_starting:
case MVM_thread_stage_waiting:
case MVM_thread_stage_started:
if (t->body.tc != tc) {
count += signal_one_thread(tc, t->body.tc);
}
break;
case MVM_thread_stage_exited:
GCDEBUG_LOG(tc, MVM_GC_DEBUG_ORCHESTRATE, "Thread %d run %d : queueing to clear nursery of thread %d\n", t->body.tc->thread_id);
add_work(tc, t->body.tc);
break;
case MVM_thread_stage_clearing_nursery:
GCDEBUG_LOG(tc, MVM_GC_DEBUG_ORCHESTRATE, "Thread %d run %d : queueing to destroy thread %d\n", t->body.tc->thread_id);
/* last GC run for this thread */
add_work(tc, t->body.tc);
break;
case MVM_thread_stage_destroyed:
GCDEBUG_LOG(tc, MVM_GC_DEBUG_ORCHESTRATE, "Thread %d run %d : found a destroyed thread\n");
/* will be cleaned up (removed from the lists) shortly */
break;
default:
MVM_panic(MVM_exitcode_gcorch, "Corrupted MVMThread or running threads list: invalid thread stage %"MVM_PRSz"", MVM_load(&t->body.stage));
}
} while (next && (t = next));
if (tail)
MVM_gc_write_barrier(tc, (MVMCollectable *)t, (MVMCollectable *)tail);
t->body.next = tail;
return count;
}