128 lines
3.2 KiB
Diff
128 lines
3.2 KiB
Diff
From 7d2739fdd23e118bbaa42b3c43381b88ea842c88 Mon Sep 17 00:00:00 2001
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From: Angus Salkeld <asalkeld@redhat.com>
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Date: Sat, 4 Feb 2012 12:28:45 +1100
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Subject: [PATCH 2/3] TEST: check for a single job causing a cpu spin
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Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
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---
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tests/check_loop.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++-
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1 files changed, 61 insertions(+), 2 deletions(-)
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diff --git a/tests/check_loop.c b/tests/check_loop.c
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index 50e80da..eb79a51 100644
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--- a/tests/check_loop.c
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+++ b/tests/check_loop.c
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@@ -60,6 +60,7 @@ static void job_1_r(void *data)
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res = qb_loop_job_add(l, QB_LOOP_MED, data, job_2);
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ck_assert_int_eq(res, 0);
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}
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+
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static void job_1_add_nuts(void *data)
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{
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int32_t res;
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@@ -153,7 +154,6 @@ START_TEST(test_loop_job_4)
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}
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END_TEST
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-
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START_TEST(test_loop_job_nuts)
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{
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int32_t res;
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@@ -169,6 +169,53 @@ START_TEST(test_loop_job_nuts)
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}
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END_TEST
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+static qb_util_stopwatch_t *rl_sw;
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+#define RATE_LIMIT_RUNTIME_SEC 3
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+
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+static void job_add_self(void *data)
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+{
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+ int32_t res;
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+ uint64_t elapsed1;
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+ qb_loop_t *l = (qb_loop_t *)data;
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+
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+ job_1_run_count++;
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+ qb_util_stopwatch_stop(rl_sw);
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+ elapsed1 = qb_util_stopwatch_us_elapsed_get(rl_sw);
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+ if (elapsed1 > (RATE_LIMIT_RUNTIME_SEC * QB_TIME_US_IN_SEC)) {
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+ /* run for 3 seconds */
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+ qb_loop_stop(l);
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+ return;
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+ }
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+ res = qb_loop_job_add(l, QB_LOOP_MED, data, job_add_self);
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+ ck_assert_int_eq(res, 0);
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+}
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+
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+START_TEST(test_job_rate_limit)
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+{
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+ int32_t res;
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+ qb_loop_t *l = qb_loop_create();
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+ fail_if(l == NULL);
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+
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+ rl_sw = qb_util_stopwatch_create();
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+ fail_if(rl_sw == NULL);
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+
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+ qb_util_stopwatch_start(rl_sw);
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+
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+ res = qb_loop_job_add(l, QB_LOOP_MED, l, job_add_self);
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+ ck_assert_int_eq(res, 0);
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+
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+ qb_loop_run(l);
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+ /*
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+ * the test is to confirm that a single job does not run away
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+ * and cause cpu spin. We are going to say that a spin is more than
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+ * one job per 50ms if there is only one job pending in the loop.
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+ */
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+ _ck_assert_int(job_1_run_count, <, (RATE_LIMIT_RUNTIME_SEC * (QB_TIME_MS_IN_SEC/50)) + 1);
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+ qb_loop_destroy(l);
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+ qb_util_stopwatch_free(rl_sw);
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+}
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+END_TEST
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+
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static Suite *loop_job_suite(void)
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{
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TCase *tc;
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@@ -188,6 +235,12 @@ static Suite *loop_job_suite(void)
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tc = tcase_create("run_500");
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tcase_add_test(tc, test_loop_job_nuts);
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+ tcase_set_timeout(tc, 5);
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+ suite_add_tcase(s, tc);
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+
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+ tc = tcase_create("rate_limit");
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+ tcase_add_test(tc, test_job_rate_limit);
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+ tcase_set_timeout(tc, 5);
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suite_add_tcase(s, tc);
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return s;
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@@ -465,12 +518,17 @@ static Suite *loop_timer_suite(void)
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tcase_add_test(tc, test_loop_timer_expire_leak);
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tcase_set_timeout(tc, 30);
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suite_add_tcase(s, tc);
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+ return s;
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+}
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+static Suite *loop_signal_suite(void)
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+{
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+ TCase *tc;
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+ Suite *s = suite_create("loop_signal_suite");
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tc = tcase_create("signals");
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tcase_add_test(tc, test_loop_sig_handling);
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tcase_set_timeout(tc, 10);
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suite_add_tcase(s, tc);
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-
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return s;
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}
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@@ -479,6 +537,7 @@ int32_t main(void)
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int32_t number_failed;
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SRunner *sr = srunner_create(loop_job_suite());
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srunner_add_suite (sr, loop_timer_suite());
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+ srunner_add_suite (sr, loop_signal_suite());
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qb_log_init("check", LOG_USER, LOG_EMERG);
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qb_log_ctl(QB_LOG_SYSLOG, QB_LOG_CONF_ENABLED, QB_FALSE);
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--
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1.7.7.6
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