Created
May 18, 2017 13:24
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| static void | |
| rb_check_deadlock(rb_vm_t *vm) | |
| { | |
| int found = 0; | |
| rb_thread_t *th = 0; | |
| if (vm_living_thread_num(vm) > vm->sleeper) return; | |
| if (vm_living_thread_num(vm) < vm->sleeper) rb_bug("sleeper must not be more than vm_living_thread_num(vm)"); | |
| if (patrol_thread && patrol_thread != GET_THREAD()) return; | |
| list_for_each(&vm->living_threads, th, vmlt_node) { | |
| if (th->status != THREAD_STOPPED_FOREVER || RUBY_VM_INTERRUPTED(th)) { | |
| found = 1; | |
| } | |
| else if (th->locking_mutex) { | |
| rb_mutex_t *mutex; | |
| GetMutexPtr(th->locking_mutex, mutex); | |
| if (mutex->th == th || (!mutex->th && !list_empty(&mutex->waitq))) { | |
| found = 1; | |
| } | |
| } | |
| if (found) | |
| break; | |
| } | |
| if (!found) { | |
| VALUE argv[2]; | |
| argv[0] = rb_eFatal; | |
| argv[1] = rb_str_new2("No live threads left. Deadlock?"); | |
| debug_deadlock_check(vm, argv[1]); | |
| vm->sleeper--; | |
| rb_threadptr_raise(vm->main_thread, 2, argv); | |
| } | |
| } |
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