static int corosync_set_rr_scheduler (void) { int ret_val = 0; #if defined(HAVE_PTHREAD_SETSCHEDPARAM) && defined(HAVE_SCHED_GET_PRIORITY_MAX) && defined(HAVE_SCHED_SETSCHEDULER) int res; sched_priority = sched_get_priority_max (SCHED_RR); if (sched_priority != -1) { global_sched_param.sched_priority = sched_priority; res = sched_setscheduler (0, SCHED_RR, &global_sched_param); if (res == -1) { LOGSYS_PERROR(errno, LOGSYS_LEVEL_WARNING, "Could not set SCHED_RR at priority %d", global_sched_param.sched_priority); global_sched_param.sched_priority = 0; #ifdef HAVE_QB_LOG_THREAD_PRIORITY_SET qb_log_thread_priority_set (SCHED_OTHER, 0); #endif ret_val = -1; } else { /* * Turn on SCHED_RR in logsys system */ #ifdef HAVE_QB_LOG_THREAD_PRIORITY_SET res = qb_log_thread_priority_set (SCHED_RR, sched_priority); #else res = -1; #endif if (res == -1) { log_printf (LOGSYS_LEVEL_ERROR, "Could not set logsys thread priority." " Can't continue because of priority inversions."); corosync_exit_error (COROSYNC_DONE_LOGSETUP); } } } else { LOGSYS_PERROR (errno, LOGSYS_LEVEL_WARNING, "Could not get maximum scheduler priority"); sched_priority = 0; ret_val = -1; } #else log_printf(LOGSYS_LEVEL_WARNING, "The Platform is missing process priority setting features. Leaving at default."); ret_val = -1; #endif return (ret_val); }
END_TEST #ifdef HAVE_PTHREAD_SETSCHEDPARAM START_TEST(test_threaded_logging_bad_sched_params) { int32_t t; int32_t rc; qb_log_init("test", LOG_USER, LOG_EMERG); qb_log_ctl(QB_LOG_SYSLOG, QB_LOG_CONF_ENABLED, QB_FALSE); t = qb_log_custom_open(_test_logger, NULL, NULL, NULL); rc = qb_log_filter_ctl(t, QB_LOG_FILTER_ADD, QB_LOG_FILTER_FILE, "*", LOG_INFO); ck_assert_int_eq(rc, 0); qb_log_format_set(t, "%b"); rc = qb_log_ctl(t, QB_LOG_CONF_ENABLED, QB_TRUE); ck_assert_int_eq(rc, 0); rc = qb_log_ctl(t, QB_LOG_CONF_THREADED, QB_TRUE); ck_assert_int_eq(rc, 0); #if defined(SCHED_RR) #define QB_SCHED SCHED_RR #elif defined(SCHED_FIFO) #define QB_SCHED SCHED_FIFO #else #define QB_SCHED (-1) #endif rc = qb_log_thread_priority_set(QB_SCHED, -1); ck_assert_int_eq(rc, 0); rc = qb_log_thread_start(); ck_assert_int_ne(rc, 0); qb_log_fini(); }
int32_t qb_log_thread_start(void) { int res; if (wthread_active) { return 0; } wthread_active = QB_TRUE; sem_init(&logt_thread_start, 0, 0); sem_init(&logt_print_finished, 0, 0); res = pthread_create(&logt_thread_id, NULL, qb_logt_worker_thread, NULL); if (res != 0) { wthread_active = QB_FALSE; return -res; } sem_wait(&logt_thread_start); if (logt_sched_param_queued) { res = qb_log_thread_priority_set(logt_sched_policy, logt_sched_param.sched_priority); if (res != 0) { goto cleanup_pthread; } logt_sched_param_queued = QB_FALSE; } logt_wthread_lock = qb_thread_lock_create(QB_THREAD_LOCK_SHORT); if (logt_wthread_lock == NULL) { goto cleanup_pthread; } return 0; cleanup_pthread: wthread_should_exit = QB_TRUE; sem_post(&logt_print_finished); pthread_join(logt_thread_id, NULL); sem_destroy(&logt_print_finished); sem_destroy(&logt_thread_start); return res; }