#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
+#include <signal.h>
+#include <errno.h>
+#include <poll.h>
#include <lttng/action/action.h>
#include <lttng/action/notify.h>
#include <lttng/notification/channel.h>
#include <lttng/notification/notification.h>
#include <lttng/trigger/trigger.h>
+#include <lttng/lttng.h>
#include <tap/tap.h>
#define NUM_TESTS 104
+
int nb_args = 0;
int named_pipe_args_start = 0;
+pid_t app_pid = -1;
+const char *app_state_file = NULL;
+
+static
+void wait_on_file(const char *path, bool file_exist)
+{
+ if (!path) {
+ return;
+ }
+ for (;;) {
+ int ret;
+ struct stat buf;
+
+ ret = stat(path, &buf);
+ if (ret == -1 && errno == ENOENT) {
+ if (file_exist) {
+ /*
+ * The file does not exist. wait a bit and
+ * continue looping until it does.
+ */
+ (void) poll(NULL, 0, 10);
+ continue;
+ }
+
+ /*
+ * File does not exist and the exit condition we want.
+ * Break from the loop and return.
+ */
+ break;
+ }
+ if (ret) {
+ perror("stat");
+ exit(EXIT_FAILURE);
+ }
+ /*
+ * stat() returned 0, so the file exists. break now only if
+ * that's the exit condition we want.
+ */
+ if (file_exist) {
+ break;
+ }
+ }
+}
int write_pipe(const char *path, uint8_t data)
{
return ret;
}
+int suspend_application()
+{
+ int ret;
+ struct stat buf;
+
+ if (!stat(app_state_file, &buf)) {
+ fail("App is already in a suspended state.");
+ ret = -1;
+ goto error;
+ }
+
+ /*
+ * Send SIGUSR1 to application instructing it to bypass tracepoint.
+ */
+ ret = kill(app_pid, SIGUSR1);
+ if (ret) {
+ fail("SIGUSR1 failed. errno %d", errno);
+ ret = -1;
+ goto error;
+ }
+
+ wait_on_file(app_state_file, true);
+
+error:
+ return ret;
+
+}
+
+int resume_application()
+{
+ int ret;
+ struct stat buf;
+
+ ret = stat(app_state_file, &buf);
+ if (ret == -1 && errno == ENOENT) {
+ fail("State file does not exist");
+ goto error;
+ }
+ if (ret) {
+ perror("stat");
+ goto error;
+ }
+
+ ret = kill(app_pid, SIGUSR1);
+ if (ret) {
+ fail("SIGUSR1 failed. errno %d", errno);
+ ret = -1;
+ goto error;
+ }
+
+ wait_on_file(app_state_file, false);
+
+error:
+ return ret;
+
+}
+
+
void test_triggers_buffer_usage_condition(const char *session_name,
const char *channel_name,
enum lttng_domain_type domain_type,
* registered trigger fail.
*/
loop_ret = lttng_unregister_trigger(trigger);
- ok(loop_ret == -LTTNG_ERR_TRIGGER_NOT_FOUND, "Unregister of a non-registerd trigger fails as expected: %s", test_tuple_string);
+ ok(loop_ret == -LTTNG_ERR_TRIGGER_NOT_FOUND, "Unregister of a non-registered trigger fails as expected: %s", test_tuple_string);
} else {
ok(loop_ret == -LTTNG_ERR_INVALID_TRIGGER, "Trigger is invalid as expected and cannot be registered: %s", test_tuple_string);
}
lttng_action_destroy(action);
}
-void test_notification_channel(const char *session_name, const char *channel_name, enum lttng_domain_type domain_type, const char **argv)
+static
+void wait_data_pending(const char *session_name)
+{
+ int ret;
+
+ do {
+ ret = lttng_data_pending(session_name);
+ assert(ret >= 0);
+ } while (ret != 0);
+}
+
+void test_notification_channel(const char *session_name, const char *channel_name, const enum lttng_domain_type domain_type, const char **argv)
{
int ret = 0;
enum lttng_condition_status condition_status;
struct lttng_condition *dummy_condition = NULL;
double low_ratio = 0.0;
- double high_ratio = 0.99;
+ double high_ratio = 0.90;
/* Set-up */
action = lttng_action_notify_create();
ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INVALID, "Subscribing to an invalid condition");
nc_status = lttng_notification_channel_unsubscribe(notification_channel, dummy_invalid_condition);
- ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INVALID, "Unsubscribing to an invalid condition");
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INVALID, "Unsubscribing from an invalid condition");
nc_status = lttng_notification_channel_unsubscribe(notification_channel, dummy_condition);
- ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_UNKNOWN_CONDITION, "Unsubscribing to an valid unknown condition");
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_UNKNOWN_CONDITION, "Unsubscribing from a valid unknown condition");
/* Subscribe a valid low condition */
nc_status = lttng_notification_channel_subscribe(notification_channel, low_condition);
ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_ALREADY_SUBSCRIBED, "Subscribe to a condition for which subscription was already done");
/* Wait for notification to happen */
- lttng_start_tracing(session_name);
stop_consumer(argv);
+ lttng_start_tracing(session_name);
/* Wait for high notification */
- nc_status = lttng_notification_channel_get_next_notification(notification_channel, ¬ification);
+ do {
+ nc_status = lttng_notification_channel_get_next_notification(notification_channel, ¬ification);
+ } while (nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INTERRUPTED);
ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK
&& notification
&& lttng_condition_get_type(lttng_notification_get_condition(notification)) == LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH,
lttng_notification_destroy(notification);
notification = NULL;
+ suspend_application();
+ lttng_stop_tracing_no_wait(session_name);
resume_consumer(argv);
- lttng_stop_tracing(session_name);
+ wait_data_pending(session_name);
/*
* Test that communication still work even if there is notification
nc_status = lttng_notification_channel_subscribe(notification_channel, low_condition);
ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK, "subscribe with pending notification");
- nc_status = lttng_notification_channel_get_next_notification(notification_channel, ¬ification);
+ do {
+ nc_status = lttng_notification_channel_get_next_notification(notification_channel, ¬ification);
+ } while (nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INTERRUPTED);
ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK
&& notification
&& lttng_condition_get_type(lttng_notification_get_condition(notification)) == LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW,
notification = NULL;
/* Stop consumer to force a high notification */
- lttng_start_tracing(session_name);
stop_consumer(argv);
+ resume_application();
+ lttng_start_tracing(session_name);
- nc_status = lttng_notification_channel_get_next_notification(notification_channel, ¬ification);
+ do {
+ nc_status = lttng_notification_channel_get_next_notification(notification_channel, ¬ification);
+ } while (nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INTERRUPTED);
ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK && notification &&
lttng_condition_get_type(lttng_notification_get_condition(notification)) == LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH,
"High notification received after intermediary communication");
lttng_notification_destroy(notification);
notification = NULL;
- /* Resume consumer to allow event consumption */
+ suspend_application();
+ lttng_stop_tracing_no_wait(session_name);
resume_consumer(argv);
- lttng_stop_tracing(session_name);
+ wait_data_pending(session_name);
- nc_status = lttng_notification_channel_get_next_notification(notification_channel, ¬ification);
+ do {
+ nc_status = lttng_notification_channel_get_next_notification(notification_channel, ¬ification);
+ } while (nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INTERRUPTED);
ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK && notification &&
lttng_condition_get_type(lttng_notification_get_condition(notification)) == LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW,
"Low notification received after re-subscription");
lttng_notification_destroy(notification);
notification = NULL;
+ stop_consumer(argv);
+ resume_application();
/* Stop consumer to force a high notification */
lttng_start_tracing(session_name);
- stop_consumer(argv);
- nc_status = lttng_notification_channel_get_next_notification(notification_channel, ¬ification);
+ do {
+ nc_status = lttng_notification_channel_get_next_notification(notification_channel, ¬ification);
+ } while (nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INTERRUPTED);
ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK && notification &&
lttng_condition_get_type(lttng_notification_get_condition(notification)) == LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH,
"High notification");
notification = NULL;
/* Resume consumer to allow event consumption */
+ suspend_application();
+ lttng_stop_tracing_no_wait(session_name);
resume_consumer(argv);
- lttng_stop_tracing(session_name);
+ wait_data_pending(session_name);
nc_status = lttng_notification_channel_unsubscribe(notification_channel, low_condition);
ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK, "Unsubscribe low condition with pending notification");
plan_tests(NUM_TESTS);
- /* Argument 4 and upward are named pipe location for consumerd control */
- named_pipe_args_start = 4;
+ /* Argument 6 and upward are named pipe location for consumerd control */
+ named_pipe_args_start = 6;
- if (argc < 5) {
+ if (argc < 7) {
fail("Missing parameter for tests to run %d", argc);
goto error;
}
nb_args = argc;
- session_name = argv[1];
- channel_name = argv[2];
- domain_type_string= argv[3];
+ domain_type_string = argv[1];
+ session_name = argv[2];
+ channel_name = argv[3];
+ app_pid = (pid_t) atoi(argv[4]);
+ app_state_file = argv[5];
if (!strcmp("LTTNG_DOMAIN_UST", domain_type_string)) {
domain_type = LTTNG_DOMAIN_UST;
projects / lttng-tools.git / blobdiff