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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58646 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2017-05-10 00:39:26 +00:00
parent 7573452099
commit 6924066a65
5 changed files with 35 additions and 21 deletions
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13
thread_sync.c
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@ -298,7 +298,8 @@ rb_mutex_unlock_th(rb_mutex_t *mutex, rb_thread_t volatile *th)
}
else if (mutex->th != th) {
err = "Attempt to unlock a mutex which is locked by another thread";
} else {
}
else {
struct mutex_waiter *cur = 0, *next = 0;
rb_mutex_t *volatile *th_mutex = &th->keeping_mutexes;
@ -306,19 +307,19 @@ rb_mutex_unlock_th(rb_mutex_t *mutex, rb_thread_t volatile *th)
list_for_each_safe(&mutex->waitq, cur, next, node) {
list_del_init(&cur->node);
switch (cur->th->status) {
case THREAD_RUNNABLE: /* from someone else calling Thread#run */
case THREAD_STOPPED_FOREVER: /* likely (rb_mutex_lock) */
case THREAD_RUNNABLE: /* from someone else calling Thread#run */
case THREAD_STOPPED_FOREVER: /* likely (rb_mutex_lock) */
rb_threadptr_interrupt(cur->th);
goto found;
case THREAD_STOPPED: /* probably impossible */
case THREAD_STOPPED: /* probably impossible */
rb_bug("unexpected THREAD_STOPPED");
case THREAD_KILLED:
case THREAD_KILLED:
/* not sure about this, possible in exit GC? */
rb_bug("unexpected THREAD_KILLED");
continue;
}
}
found:
found:
while (*th_mutex != mutex) {
th_mutex = &(*th_mutex)->next_mutex;
}