Function background_thread0_work

deps/jemalloc/src/background_thread.c:433–480

}

static void
background_thread0_work(tsd_t *tsd) {
	/* Thread0 is also responsible for launching / terminating threads. */
	VARIABLE_ARRAY(bool, created_threads, max_background_threads);
	unsigned i;
	for (i = 1; i < max_background_threads; i++) {
		created_threads[i] = false;
	}
	/* Start working, and create more threads when asked. */
	unsigned n_created = 1;
	while (background_thread_info[0].state != background_thread_stopped) {
		if (background_thread_pause_check(tsd_tsdn(tsd),
		    &background_thread_info[0])) {
			continue;
		}
		if (check_background_thread_creation(tsd, &n_created,
		    (bool *)&created_threads)) {
			continue;
		}
		background_work_sleep_once(tsd_tsdn(tsd),
		    &background_thread_info[0], 0);
	}

	/*
	 * Shut down other threads at exit.  Note that the ctl thread is holding
	 * the global background_thread mutex (and is waiting) for us.
	 */
	assert(!background_thread_enabled());
	for (i = 1; i < max_background_threads; i++) {
		background_thread_info_t *info = &background_thread_info[i];
		assert(info->state != background_thread_paused);
		if (created_threads[i]) {
			background_threads_disable_single(tsd, info);
		} else {
			malloc_mutex_lock(tsd_tsdn(tsd), &info->mtx);
			if (info->state != background_thread_stopped) {
				/* The thread was not created. */
				assert(info->state ==
				    background_thread_started);
				n_background_threads--;
				info->state = background_thread_stopped;
			}
			malloc_mutex_unlock(tsd_tsdn(tsd), &info->mtx);
		}
	}
	background_thread_info[0].state = background_thread_stopped;
	assert(n_background_threads == 1);
}

static void
background_work(tsd_t *tsd, unsigned ind) {