*
* Copyright (C) 2017 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
*
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
+ * SPDX-License-Identifier: MIT
*
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
*/
#include <assert.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <signal.h>
-#include <errno.h>
#include <poll.h>
+#include <common/compat/errno.h>
#include <lttng/action/action.h>
#include <lttng/action/notify.h>
#include <lttng/condition/buffer-usage.h>
#include <lttng/condition/condition.h>
#include <lttng/condition/evaluation.h>
+#include <lttng/condition/event-rule.h>
#include <lttng/domain.h>
#include <lttng/endpoint.h>
+#include <lttng/event-rule/kprobe.h>
+#include <lttng/event-rule/syscall.h>
+#include <lttng/event-rule/tracepoint.h>
+#include <lttng/event-rule/uprobe.h>
+#include <lttng/kernel-probe.h>
#include <lttng/lttng-error.h>
+#include <lttng/lttng.h>
#include <lttng/notification/channel.h>
#include <lttng/notification/notification.h>
#include <lttng/trigger/trigger.h>
-#include <lttng/lttng.h>
+#include <lttng/userspace-probe.h>
#include <tap/tap.h>
-#define NUM_TESTS 104
-
int nb_args = 0;
int named_pipe_args_start = 0;
-pid_t app_pid = -1;
+pid_t app_pid = 0;
const char *app_state_file = NULL;
static
ret = stat(path, &buf);
if (ret == -1 && errno == ENOENT) {
if (file_exist) {
- (void) poll(NULL, 0, 10); /* 10 ms delay */
- continue; /* retry */
+ /*
+ * The file does not exist. wait a bit and
+ * continue looping until it does.
+ */
+ (void) poll(NULL, 0, 10);
+ continue;
}
- break; /* File does not exist */
+
+ /*
+ * File does not exist and the exit condition we want.
+ * Break from the loop and return.
+ */
+ break;
}
if (ret) {
perror("stat");
exit(EXIT_FAILURE);
}
- break; /* found */
+ /*
+ * stat() returned 0, so the file exists. break now only if
+ * that's the exit condition we want.
+ */
+ if (file_exist) {
+ break;
+ }
}
}
+static
int write_pipe(const char *path, uint8_t data)
{
int ret = 0;
return ret;
}
+static
int stop_consumer(const char **argv)
{
- int ret = 0;
- for (int i = named_pipe_args_start; i < nb_args; i++) {
+ int ret = 0, i;
+
+ for (i = named_pipe_args_start; i < nb_args; i++) {
ret = write_pipe(argv[i], 49);
}
return ret;
}
+static
int resume_consumer(const char **argv)
{
- int ret = 0;
- for (int i = named_pipe_args_start; i < nb_args; i++) {
+ int ret = 0, i;
+
+ for (i = named_pipe_args_start; i < nb_args; i++) {
ret = write_pipe(argv[i], 0);
}
return ret;
}
-int suspend_application()
+static
+int suspend_application(void)
{
int ret;
struct stat buf;
/*
* Send SIGUSR1 to application instructing it to bypass tracepoint.
*/
+ assert(app_pid > 1);
+
ret = kill(app_pid, SIGUSR1);
if (ret) {
fail("SIGUSR1 failed. errno %d", errno);
}
-int resume_application()
+static
+int resume_application(void)
{
int ret;
struct stat buf;
goto error;
}
+ assert(app_pid > 1);
+
ret = kill(app_pid, SIGUSR1);
if (ret) {
fail("SIGUSR1 failed. errno %d", errno);
}
+static
void test_triggers_buffer_usage_condition(const char *session_name,
const char *channel_name,
enum lttng_domain_type domain_type,
enum lttng_condition_type condition_type)
{
+ unsigned int test_vector_size = 5, i;
enum lttng_condition_status condition_status;
struct lttng_action *action;
ok(lttng_register_trigger(NULL) == -LTTNG_ERR_INVALID, "Registering a NULL trigger fails as expected");
/* Test: register a trigger */
- unsigned int test_vector_size = 5;
- for (unsigned int i = 0; i < pow(2,test_vector_size); i++) {
+
+ for (i = 0; i < pow(2,test_vector_size); i++) {
int loop_ret = 0;
char *test_tuple_string = NULL;
unsigned int mask_position = 0;
assert("Logic error for test vector generation");
}
- loop_ret = asprintf(&test_tuple_string, "session name %s, channel name %s, threshold ratio %s, threshold byte %s, domain type %s",
+ loop_ret = asprintf(&test_tuple_string, "session name %s, channel name %s, threshold ratio %s, threshold byte %s, domain type %s",
session_name_set ? "set" : "unset",
channel_name_set ? "set" : "unset",
threshold_ratio_set ? "set" : "unset",
* 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);
}
} 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)
+static
+int setup_buffer_usage_condition(struct lttng_condition *condition,
+ const char *condition_name,
+ const char *session_name,
+ const char *channel_name,
+ const enum lttng_domain_type domain_type)
{
- int ret = 0;
enum lttng_condition_status condition_status;
- enum lttng_notification_channel_status nc_status;
+ int ret = 0;
- struct lttng_action *action = NULL;
- struct lttng_notification *notification = NULL;
- struct lttng_notification_channel *notification_channel = NULL;
- struct lttng_trigger *trigger = NULL;
+ condition_status = lttng_condition_buffer_usage_set_session_name(
+ condition, session_name);
+ if (condition_status != LTTNG_CONDITION_STATUS_OK) {
+ fail("Failed to set session name on creation of condition `%s`",
+ condition_name);
+ ret = -1;
+ goto end;
+ }
- struct lttng_condition *low_condition = NULL;
- struct lttng_condition *high_condition = NULL;
- struct lttng_condition *dummy_invalid_condition = NULL;
- struct lttng_condition *dummy_condition = NULL;
+ condition_status = lttng_condition_buffer_usage_set_channel_name(
+ condition, channel_name);
+ if (condition_status != LTTNG_CONDITION_STATUS_OK) {
+ fail("Failed to set channel name on creation of condition `%s`",
+ condition_name);
+ ret = -1;
+ goto end;
+ }
+
+ condition_status = lttng_condition_buffer_usage_set_domain_type(
+ condition, domain_type);
+ if (condition_status != LTTNG_CONDITION_STATUS_OK) {
+ fail("Failed to set domain type on creation of condition `%s`",
+ condition_name);
+ ret = -1;
+ goto end;
+ }
- double low_ratio = 0.0;
- double high_ratio = 0.99;
+end:
+ return ret;
+}
- /* Set-up */
- action = lttng_action_notify_create();
- if (!action) {
- fail("Setup error on action creation");
+static
+void test_invalid_channel_subscription(
+ const enum lttng_domain_type domain_type)
+{
+ enum lttng_condition_status condition_status;
+ enum lttng_notification_channel_status nc_status;
+ struct lttng_condition *dummy_condition = NULL;
+ struct lttng_condition *dummy_invalid_condition = NULL;
+ struct lttng_notification_channel *notification_channel = NULL;
+ int ret = 0;
+
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+ if (!notification_channel) {
goto end;
}
- /* Create a dummy, empty condition for later test */
+ /*
+ * Create a dummy, empty (thus invalid) condition to test error paths.
+ */
dummy_invalid_condition = lttng_condition_buffer_usage_low_create();
if (!dummy_invalid_condition) {
fail("Setup error on condition creation");
goto end;
}
+ /*
+ * Test subscription and unsubscription of an invalid condition to/from
+ * a channel.
+ */
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, dummy_invalid_condition);
+ 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 from an invalid condition");
+
/* Create a valid dummy condition with a ratio of 0.5 */
dummy_condition = lttng_condition_buffer_usage_low_create();
if (!dummy_condition) {
fail("Setup error on dummy_condition creation");
goto end;
-
}
+
condition_status = lttng_condition_buffer_usage_set_threshold_ratio(
dummy_condition, 0.5);
if (condition_status != LTTNG_CONDITION_STATUS_OK) {
goto end;
}
- condition_status = lttng_condition_buffer_usage_set_session_name(
- dummy_condition, session_name);
- if (condition_status != LTTNG_CONDITION_STATUS_OK) {
- fail("Setup error on dummy_condition creation");
- goto end;
- }
- condition_status = lttng_condition_buffer_usage_set_channel_name(
- dummy_condition, channel_name);
- if (condition_status != LTTNG_CONDITION_STATUS_OK) {
- fail("Setup error on dummy_condition creation");
- goto end;
- }
- condition_status = lttng_condition_buffer_usage_set_domain_type(
- dummy_condition, domain_type);
- if (condition_status != LTTNG_CONDITION_STATUS_OK) {
- fail("Setup error on dummy_condition creation");
+ ret = setup_buffer_usage_condition(dummy_condition, "dummy_condition",
+ "dummy_session", "dummy_channel", domain_type);
+ if (ret) {
+ fail("Setup error on dummy condition creation");
goto end;
}
- /* Register a low condition with a ratio */
- low_condition = lttng_condition_buffer_usage_low_create();
- if (!low_condition) {
- fail("Setup error on low_condition creation");
- goto end;
- }
- condition_status = lttng_condition_buffer_usage_set_threshold_ratio(
- low_condition, low_ratio);
- if (condition_status != LTTNG_CONDITION_STATUS_OK) {
- fail("Setup error on low_condition creation");
- goto end;
- }
+ /*
+ * Test subscription and unsubscription to/from a channel with invalid
+ * parameters.
+ */
+ nc_status = lttng_notification_channel_subscribe(NULL, NULL);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INVALID,
+ "Notification channel subscription is invalid: NULL, NULL");
- condition_status = lttng_condition_buffer_usage_set_session_name(
- low_condition, session_name);
- if (condition_status != LTTNG_CONDITION_STATUS_OK) {
- fail("Setup error on low_condition creation");
- goto end;
- }
- condition_status = lttng_condition_buffer_usage_set_channel_name(
- low_condition, channel_name);
- if (condition_status != LTTNG_CONDITION_STATUS_OK) {
- fail("Setup error on low_condition creation");
- goto end;
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, NULL);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INVALID,
+ "Notification channel subscription is invalid: NON-NULL, NULL");
+
+ nc_status = lttng_notification_channel_subscribe(NULL, dummy_condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INVALID,
+ "Notification channel subscription is invalid: NULL, NON-NULL");
+
+ nc_status = lttng_notification_channel_unsubscribe(
+ notification_channel, dummy_condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_UNKNOWN_CONDITION,
+ "Unsubscribing from a valid unknown condition");
+
+end:
+ lttng_notification_channel_destroy(notification_channel);
+ lttng_condition_destroy(dummy_invalid_condition);
+ lttng_condition_destroy(dummy_condition);
+ return;
+}
+
+enum buffer_usage_type {
+ BUFFER_USAGE_TYPE_LOW,
+ BUFFER_USAGE_TYPE_HIGH,
+};
+
+static int register_buffer_usage_notify_trigger(const char *session_name,
+ const char *channel_name,
+ const enum lttng_domain_type domain_type,
+ enum buffer_usage_type buffer_usage_type,
+ double ratio,
+ struct lttng_condition **condition,
+ struct lttng_action **action,
+ struct lttng_trigger **trigger)
+{
+ enum lttng_condition_status condition_status;
+ struct lttng_action *tmp_action = NULL;
+ struct lttng_condition *tmp_condition = NULL;
+ struct lttng_trigger *tmp_trigger = NULL;
+ int ret = 0;
+
+ /* Set-up */
+ tmp_action = lttng_action_notify_create();
+ if (!action) {
+ fail("Setup error on action creation");
+ ret = -1;
+ goto error;
}
- condition_status = lttng_condition_buffer_usage_set_domain_type(
- low_condition, domain_type);
- if (condition_status != LTTNG_CONDITION_STATUS_OK) {
- fail("Setup error on low_condition creation");
- goto end;
+ if (buffer_usage_type == BUFFER_USAGE_TYPE_LOW) {
+ tmp_condition = lttng_condition_buffer_usage_low_create();
+ } else {
+ tmp_condition = lttng_condition_buffer_usage_high_create();
}
- /* Register a high condition with a ratio */
- high_condition = lttng_condition_buffer_usage_high_create();
- if (!high_condition) {
- fail("Setup error on high_condition creation");
- goto end;
+ if (!tmp_condition) {
+ fail("Setup error on condition creation");
+ ret = -1;
+ goto error;
}
+ /* Set the buffer usage threashold */
condition_status = lttng_condition_buffer_usage_set_threshold_ratio(
- high_condition, high_ratio);
+ tmp_condition, ratio);
if (condition_status != LTTNG_CONDITION_STATUS_OK) {
- fail("Setup error on high_condition creation");
- goto end;
+ fail("Setup error on condition creation");
+ ret = -1;
+ goto error;
}
- condition_status = lttng_condition_buffer_usage_set_session_name(
- high_condition, session_name);
- if (condition_status != LTTNG_CONDITION_STATUS_OK) {
- fail("Setup error on high_condition creation");
- goto end;
+ ret = setup_buffer_usage_condition(tmp_condition, "condition_name",
+ session_name, channel_name, domain_type);
+ if (ret) {
+ fail("Setup error on condition creation");
+ ret = -1;
+ goto error;
}
- condition_status = lttng_condition_buffer_usage_set_channel_name(
- high_condition, channel_name);
- if (condition_status != LTTNG_CONDITION_STATUS_OK) {
- fail("Setup error on high_condition creation");
- goto end;
+
+ /* Register the trigger for condition. */
+ tmp_trigger = lttng_trigger_create(tmp_condition, tmp_action);
+ if (!tmp_trigger) {
+ fail("Setup error on trigger creation");
+ ret = -1;
+ goto error;
}
- condition_status = lttng_condition_buffer_usage_set_domain_type(
- high_condition, domain_type);
- if (condition_status != LTTNG_CONDITION_STATUS_OK) {
- fail("Setup error on high_condition creation");
- goto end;
+
+ ret = lttng_register_trigger(tmp_trigger);
+ if (ret) {
+ fail("Setup error on trigger registration");
+ ret = -1;
+ goto error;
}
- /* Register the triggers for low and high condition */
- trigger = lttng_trigger_create(low_condition, action);
- if (!trigger) {
- fail("Setup error on low trigger creation");
+ *condition = tmp_condition;
+ *trigger = tmp_trigger;
+ *action = tmp_action;
+ goto end;
+
+error:
+ lttng_action_destroy(tmp_action);
+ lttng_condition_destroy(tmp_condition);
+ lttng_trigger_destroy(tmp_trigger);
+
+end:
+ return ret;
+}
+
+static void test_subscription_twice(const char *session_name,
+ const char *channel_name,
+ const enum lttng_domain_type domain_type)
+{
+ int ret = 0;
+ enum lttng_notification_channel_status nc_status;
+
+ struct lttng_action *action = NULL;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_trigger *trigger = NULL;
+
+ struct lttng_condition *condition = NULL;
+
+ ret = register_buffer_usage_notify_trigger(session_name, channel_name,
+ domain_type, BUFFER_USAGE_TYPE_LOW, 0.99, &condition,
+ &action, &trigger);
+ if (ret) {
+ fail("Setup error on trigger registration");
goto end;
}
- ret = lttng_register_trigger(trigger);
- if (ret) {
- fail("Setup error on low trigger registration");
+ /* Begin testing. */
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+ if (!notification_channel) {
goto end;
}
+ /* Subscribe a valid condition. */
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to condition");
+
+ /* Subscribing again should fail. */
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_ALREADY_SUBSCRIBED,
+ "Subscribe to a condition for which subscription was already done");
+
+end:
+ lttng_unregister_trigger(trigger);
lttng_trigger_destroy(trigger);
- trigger = NULL;
+ lttng_notification_channel_destroy(notification_channel);
+ lttng_action_destroy(action);
+ lttng_condition_destroy(condition);
+}
- trigger = lttng_trigger_create(high_condition, action);
- if (!trigger) {
- fail("Setup error on high trigger creation");
+static void test_buffer_usage_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_notification_channel_status nc_status;
+
+ struct lttng_action *low_action = NULL;
+ struct lttng_action *high_action = NULL;
+ struct lttng_notification *notification = NULL;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_trigger *low_trigger = NULL;
+ struct lttng_trigger *high_trigger = NULL;
+
+ struct lttng_condition *low_condition = NULL;
+ struct lttng_condition *high_condition = NULL;
+
+ const double low_ratio = 0.0;
+ const double high_ratio = 0.90;
+
+ ret = register_buffer_usage_notify_trigger(session_name, channel_name,
+ domain_type, BUFFER_USAGE_TYPE_LOW, low_ratio,
+ &low_condition, &low_action, &low_trigger);
+ if (ret) {
+ fail("Setup error on low trigger registration");
goto end;
}
- ret = lttng_register_trigger(trigger);
+ ret = register_buffer_usage_notify_trigger(session_name, channel_name,
+ domain_type, BUFFER_USAGE_TYPE_HIGH, high_ratio,
+ &high_condition, &high_action, &high_trigger);
if (ret) {
fail("Setup error on high trigger registration");
goto end;
}
/* Begin testing */
- notification_channel = lttng_notification_channel_create(lttng_session_daemon_notification_endpoint);
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
ok(notification_channel, "Notification channel object creation");
if (!notification_channel) {
goto end;
}
- /* Basic error path check */
- nc_status = lttng_notification_channel_subscribe(NULL, NULL);
- ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INVALID, "Notification channel subscription is invalid: NULL, NULL");
-
- nc_status = lttng_notification_channel_subscribe(notification_channel, NULL);
- ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INVALID, "Notification channel subscription is invalid: NON-NULL, NULL");
-
- nc_status = lttng_notification_channel_subscribe(NULL, low_condition);
- ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INVALID, "Notification channel subscription is invalid: NULL, NON-NULL");
-
- nc_status = lttng_notification_channel_subscribe(notification_channel, dummy_invalid_condition);
- 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");
-
- 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");
-
/* Subscribe a valid low condition */
- nc_status = lttng_notification_channel_subscribe(notification_channel, low_condition);
- ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK, "Subscribe to condition");
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, low_condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to low condition");
/* Subscribe a valid high condition */
- nc_status = lttng_notification_channel_subscribe(notification_channel, high_condition);
- ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK, "Subscribe to condition");
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, high_condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to high 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");
-
- nc_status = lttng_notification_channel_subscribe(notification_channel, high_condition);
- ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_ALREADY_SUBSCRIBED, "Subscribe to a condition for which subscription was already done");
+ resume_application();
/* Wait for notification to happen */
stop_consumer(argv);
lttng_start_tracing(session_name);
/* Wait for high notification */
- nc_status = lttng_notification_channel_get_next_notification(notification_channel, ¬ification);
- ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK
- && notification
- && lttng_condition_get_type(lttng_notification_get_condition(notification)) == LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH,
+ 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;
* waiting for consumption.
*/
- nc_status = lttng_notification_channel_unsubscribe(notification_channel, low_condition);
- ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK, "Unsubscribe with pending notification");
+ nc_status = lttng_notification_channel_unsubscribe(
+ notification_channel, low_condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Unsubscribe with pending 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_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);
- ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK
- && notification
- && lttng_condition_get_type(lttng_notification_get_condition(notification)) == LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW,
+ 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 intermediary communication");
lttng_notification_destroy(notification);
notification = NULL;
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,
+ 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(argv);
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,
+ 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 to force a high notification */
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,
+ lttng_condition_get_type(lttng_notification_get_condition(
+ notification)) ==
+ LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH,
"High notification");
lttng_notification_destroy(notification);
notification = NULL;
- /* Resume consumer to allow event consumption */
suspend_application();
+
+ /* Resume consumer to allow event consumption */
lttng_stop_tracing_no_wait(session_name);
resume_consumer(argv);
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");
- nc_status = lttng_notification_channel_unsubscribe(notification_channel, high_condition);
- ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK, "Unsubscribe high condition with pending notification");
+ nc_status = lttng_notification_channel_unsubscribe(
+ notification_channel, low_condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Unsubscribe low condition with pending notification");
+
+ nc_status = lttng_notification_channel_unsubscribe(
+ notification_channel, high_condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Unsubscribe high condition with pending notification");
end:
lttng_notification_channel_destroy(notification_channel);
- lttng_trigger_destroy(trigger);
- lttng_action_destroy(action);
+ lttng_trigger_destroy(low_trigger);
+ lttng_trigger_destroy(high_trigger);
+ lttng_action_destroy(low_action);
+ lttng_action_destroy(high_action);
lttng_condition_destroy(low_condition);
lttng_condition_destroy(high_condition);
- lttng_condition_destroy(dummy_invalid_condition);
- lttng_condition_destroy(dummy_condition);
}
-int main(int argc, const char *argv[])
+static void create_tracepoint_event_rule_trigger(const char *event_pattern,
+ const char *trigger_name,
+ const char *filter,
+ unsigned int exclusion_count,
+ const char * const *exclusions,
+ enum lttng_domain_type domain_type,
+ struct lttng_condition **condition,
+ struct lttng_trigger **trigger)
{
- const char *session_name = NULL;
- const char *channel_name = NULL;
- const char *domain_type_string = NULL;
- enum lttng_domain_type domain_type = LTTNG_DOMAIN_NONE;
+ enum lttng_event_rule_status event_rule_status;
+ enum lttng_trigger_status trigger_status;
- plan_tests(NUM_TESTS);
+ struct lttng_action *tmp_action = NULL;
+ struct lttng_event_rule *event_rule = NULL;
+ struct lttng_condition *tmp_condition = NULL;
+ struct lttng_trigger *tmp_trigger = NULL;
+ int ret;
- /* Argument 6 and upward are named pipe location for consumerd control */
- named_pipe_args_start = 6;
+ assert(event_pattern);
+ assert(trigger_name);
+ assert(condition);
+ assert(trigger);
+
+ event_rule = lttng_event_rule_tracepoint_create(domain_type);
+ ok(event_rule, "Tracepoint event rule object creation");
+
+ event_rule_status = lttng_event_rule_tracepoint_set_pattern(
+ event_rule, event_pattern);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting tracepoint event rule pattern: '%s'",
+ event_pattern);
+
+ if (filter) {
+ event_rule_status = lttng_event_rule_tracepoint_set_filter(
+ event_rule, filter);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting tracepoint event rule filter: '%s'",
+ filter);
+ }
- if (argc < 7) {
- fail("Missing parameter for tests to run %d", argc);
- goto error;
+ if (exclusions) {
+ int i;
+ bool success = true;
+
+ assert(domain_type == LTTNG_DOMAIN_UST);
+ assert(exclusion_count > 0);
+
+ for (i = 0; i < exclusion_count; i++) {
+ event_rule_status =
+ lttng_event_rule_tracepoint_add_exclusion(
+ event_rule,
+ exclusions[i]);
+ if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) {
+ fail("Setting tracepoint event rule exclusion '%s'.",
+ exclusions[i]);
+ success = false;
+ }
+ }
+
+ ok(success, "Setting tracepoint event rule exclusions");
}
- nb_args = argc;
+ tmp_condition = lttng_condition_event_rule_create(event_rule);
+ ok(tmp_condition, "Condition event rule object creation");
- 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];
+ tmp_action = lttng_action_notify_create();
+ ok(tmp_action, "Action event rule object creation");
- if (!strcmp("LTTNG_DOMAIN_UST", domain_type_string)) {
- domain_type = LTTNG_DOMAIN_UST;
+ tmp_trigger = lttng_trigger_create(tmp_condition, tmp_action);
+ ok(tmp_trigger, "Trigger object creation %s", trigger_name);
+
+ trigger_status = lttng_trigger_set_name(tmp_trigger, trigger_name);
+ ok(trigger_status == LTTNG_TRIGGER_STATUS_OK,
+ "Setting name to trigger %s", trigger_name);
+
+ ret = lttng_register_trigger(tmp_trigger);
+ ok(ret == 0, "Trigger registration %s", trigger_name);
+
+ lttng_event_rule_destroy(event_rule);
+
+ *condition = tmp_condition;
+ *trigger = tmp_trigger;
+
+ return;
+}
+
+static char *get_next_notification_trigger_name(
+ struct lttng_notification_channel *notification_channel)
+{
+ struct lttng_notification *notification;
+ enum lttng_notification_channel_status status;
+ const struct lttng_evaluation *notification_evaluation;
+ char *trigger_name = NULL;
+ const char *name;
+ enum lttng_condition_type notification_evaluation_type;
+
+ /* Receive the next notification. */
+ status = lttng_notification_channel_get_next_notification(
+ notification_channel, ¬ification);
+
+ switch (status) {
+ case LTTNG_NOTIFICATION_CHANNEL_STATUS_OK:
+ break;
+ default:
+ /* Unhandled conditions / errors. */
+ fail("Failed to get next notification channel notification: status = %d",
+ status);
+ goto end;
}
- if (!strcmp("LTTNG_DOMAIN_KERNEL", domain_type_string)) {
- domain_type = LTTNG_DOMAIN_KERNEL;
+
+ notification_evaluation =
+ lttng_notification_get_evaluation(notification);
+
+ notification_evaluation_type =
+ lttng_evaluation_get_type(notification_evaluation);
+ switch (notification_evaluation_type) {
+ case LTTNG_CONDITION_TYPE_EVENT_RULE_HIT:
+ lttng_evaluation_event_rule_get_trigger_name(
+ notification_evaluation, &name);
+
+ trigger_name = strdup(name);
+ break;
+ default:
+ fail("Unexpected notification evaluation type: notification type = %d",
+ notification_evaluation_type);
+ break;
}
- if (domain_type == LTTNG_DOMAIN_NONE) {
- fail("Unknown domain type");
- goto error;
+
+ lttng_notification_destroy(notification);
+
+end:
+ return trigger_name;
+}
+
+static void test_tracepoint_event_rule_notification(
+ enum lttng_domain_type domain_type)
+{
+ int i;
+ const int notification_count = 3;
+ enum lttng_notification_channel_status nc_status;
+ struct lttng_action *action = NULL;
+ struct lttng_condition *condition = NULL;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_trigger *trigger = NULL;
+ const char * const trigger_name = "my_precious";
+ const char *pattern;
+
+ if (domain_type == LTTNG_DOMAIN_UST) {
+ pattern = "tp:tptest";
+ } else {
+ pattern = "lttng_test_filter_event";
+ }
+
+ create_tracepoint_event_rule_trigger(pattern, trigger_name, NULL, 0,
+ NULL, domain_type, &condition, &trigger);
+
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ resume_application();
+
+ /* Get 3 notifications. */
+ for (i = 0; i < notification_count; i++) {
+ char *name = get_next_notification_trigger_name(
+ notification_channel);
+
+ ok(strcmp(trigger_name, name) == 0,
+ "Received notification for the expected trigger name: '%s' (%d/%d)",
+ trigger_name, i + 1, notification_count);
+ free(name);
+ }
+
+ suspend_application();
+ lttng_notification_channel_destroy(notification_channel);
+ lttng_unregister_trigger(trigger);
+ lttng_trigger_destroy(trigger);
+ lttng_action_destroy(action);
+ lttng_condition_destroy(condition);
+ return;
+}
+
+static void test_tracepoint_event_rule_notification_filter(
+ enum lttng_domain_type domain_type)
+{
+ int i;
+ enum lttng_notification_channel_status nc_status;
+
+ struct lttng_condition *ctrl_condition = NULL, *condition = NULL;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_trigger *ctrl_trigger = NULL, *trigger = NULL;
+ const char * const ctrl_trigger_name = "control_trigger";
+ const char * const trigger_name = "trigger";
+ const char *pattern;
+ int ctrl_count = 0, count = 0;
+
+ if (domain_type == LTTNG_DOMAIN_UST) {
+ pattern = "tp:tptest";
+ } else {
+ pattern = "lttng_test_filter_event";
+ }
+
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+
+ create_tracepoint_event_rule_trigger(pattern, ctrl_trigger_name, NULL,
+ 0, NULL, domain_type, &ctrl_condition, &ctrl_trigger);
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, ctrl_condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ /*
+ * Attach a filter expression to get notification only if the
+ * `intfield` is even.
+ */
+ create_tracepoint_event_rule_trigger(pattern, trigger_name,
+ "(intfield & 1) == 0", 0, NULL, domain_type, &condition,
+ &trigger);
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ /*
+ * We registered 2 notifications triggers, one with a filter and one
+ * without (control). The one with a filter will only fired when the
+ * `intfield` is a multiple of 2. We should get two times as many
+ * control notifications as filter notifications.
+ */
+ resume_application();
+
+ /*
+ * Get 3 notifications. We should get 1 for the regular trigger (with
+ * the filter) and 2 from the control trigger. This works whatever
+ * the order we receive the notifications.
+ */
+ for (i = 0; i < 3; i++) {
+ char *name = get_next_notification_trigger_name(
+ notification_channel);
+
+ if (strcmp(ctrl_trigger_name, name) == 0) {
+ ctrl_count++;
+ } else if (strcmp(trigger_name, name) == 0) {
+ count++;
+ }
+
+ free(name);
+ }
+
+ ok(ctrl_count / 2 == count,
+ "Get twice as many control notif as of regular notif");
+
+ suspend_application();
+
+ lttng_unregister_trigger(trigger);
+ lttng_unregister_trigger(ctrl_trigger);
+ lttng_notification_channel_destroy(notification_channel);
+ lttng_trigger_destroy(trigger);
+ lttng_trigger_destroy(ctrl_trigger);
+ lttng_condition_destroy(condition);
+ lttng_condition_destroy(ctrl_condition);
+}
+
+static void test_tracepoint_event_rule_notification_exclusion(
+ enum lttng_domain_type domain_type)
+{
+ enum lttng_notification_channel_status nc_status;
+ struct lttng_condition *ctrl_condition = NULL, *condition = NULL;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_trigger *ctrl_trigger = NULL, *trigger = NULL;
+ int ctrl_count = 0, count = 0, i;
+ const char * const ctrl_trigger_name = "control_exclusion_trigger";
+ const char * const trigger_name = "exclusion_trigger";
+ const char * const pattern = "tp:tptest*";
+ const char * const exclusions[] = {
+ "tp:tptest2",
+ "tp:tptest3",
+ "tp:tptest4",
+ "tp:tptest5"
+ };
+
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+
+ create_tracepoint_event_rule_trigger(pattern, ctrl_trigger_name, NULL,
+ 0, NULL, domain_type, &ctrl_condition, &ctrl_trigger);
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, ctrl_condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ create_tracepoint_event_rule_trigger(pattern, trigger_name, NULL, 4,
+ exclusions, domain_type, &condition, &trigger);
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ /*
+ * We registered 2 notifications triggers, one with an exclusion and
+ * one without (control).
+ * - The trigger with an exclusion will fire once every iteration.
+ * - The trigger without an exclusion will fire 5 times every
+ * iteration.
+ *
+ * We should get 5 times as many notifications from the control
+ * trigger.
+ */
+ resume_application();
+
+ /*
+ * Get 6 notifications. We should get 1 for the regular trigger (with
+ * the exclusion) and 5 from the control trigger. This works whatever
+ * the order we receive the notifications.
+ */
+ for (i = 0; i < 6; i++) {
+ char *name = get_next_notification_trigger_name(
+ notification_channel);
+
+ if (strcmp(ctrl_trigger_name, name) == 0) {
+ ctrl_count++;
+ } else if (strcmp(trigger_name, name) == 0) {
+ count++;
+ }
+
+ free(name);
+ }
+
+ ok(ctrl_count / 5 == count,
+ "Got 5 times as many control notif as of regular notif");
+
+ suspend_application();
+
+ lttng_unregister_trigger(trigger);
+ lttng_unregister_trigger(ctrl_trigger);
+ lttng_notification_channel_destroy(notification_channel);
+ lttng_trigger_destroy(trigger);
+ lttng_trigger_destroy(ctrl_trigger);
+ lttng_condition_destroy(condition);
+ lttng_condition_destroy(ctrl_condition);
+ return;
+}
+
+static void test_kprobe_event_rule_notification(
+ enum lttng_domain_type domain_type)
+{
+ int i, ret;
+ const int notification_count = 3;
+ enum lttng_notification_channel_status nc_status;
+ enum lttng_event_rule_status event_rule_status;
+ enum lttng_trigger_status trigger_status;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_condition *condition = NULL;
+ struct lttng_kernel_probe_location *location = NULL;
+ struct lttng_event_rule *event_rule = NULL;
+ struct lttng_action *action = NULL;
+ struct lttng_trigger *trigger = NULL;
+ const char * const trigger_name = "kprobe_trigger";
+ const char * const symbol_name = "lttng_test_filter_event_write";
+
+ action = lttng_action_notify_create();
+ if (!action) {
+ fail("Failed to create notify action");
+ goto end;
+ }
+
+ location = lttng_kernel_probe_location_symbol_create(symbol_name, 0);
+ if (!location) {
+ fail("Failed to create kernel probe location");
+ goto end;
+ }
+
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+
+ event_rule = lttng_event_rule_kprobe_create();
+ ok(event_rule, "kprobe event rule object creation");
+
+ event_rule_status = lttng_event_rule_kprobe_set_location(
+ event_rule, location);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting kprobe event rule location: '%s'", symbol_name);
+
+ event_rule_status = lttng_event_rule_kprobe_set_name(
+ event_rule, trigger_name);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting kprobe event rule name: '%s'", trigger_name);
+
+ condition = lttng_condition_event_rule_create(event_rule);
+ ok(condition, "Condition event rule object creation");
+
+ /* Register the trigger for condition. */
+ trigger = lttng_trigger_create(condition, action);
+ if (!trigger) {
+ fail("Failed to create trigger with kernel probe event rule condition and notify action");
+ goto end;
+ }
+
+ trigger_status = lttng_trigger_set_name(trigger, trigger_name);
+ ok(trigger_status == LTTNG_TRIGGER_STATUS_OK,
+ "Setting trigger name to '%s'", trigger_name);
+
+ ret = lttng_register_trigger(trigger);
+ if (ret) {
+ fail("Failed to register trigger with kernel probe event rule condition and notify action");
+ goto end;
+ }
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ resume_application();
+
+ for (i = 0; i < notification_count; i++) {
+ char *name = get_next_notification_trigger_name(
+ notification_channel);
+
+ ok(strcmp(trigger_name, name) == 0,
+ "Received notification for the expected trigger name: '%s' (%d/%d)",
+ trigger_name, i + 1, notification_count);
+ free(name);
+ }
+
+end:
+ suspend_application();
+ lttng_notification_channel_destroy(notification_channel);
+ lttng_unregister_trigger(trigger);
+ lttng_trigger_destroy(trigger);
+ lttng_action_destroy(action);
+ lttng_event_rule_destroy(event_rule);
+ lttng_condition_destroy(condition);
+ lttng_kernel_probe_location_destroy(location);
+ return;
+}
+
+static void test_uprobe_event_rule_notification(
+ enum lttng_domain_type domain_type,
+ const char *testapp_path,
+ const char *test_symbol_name)
+{
+ int i, ret;
+ const int notification_count = 3;
+ enum lttng_notification_channel_status nc_status;
+ enum lttng_event_rule_status event_rule_status;
+ enum lttng_trigger_status trigger_status;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_userspace_probe_location *probe_location = NULL;
+ struct lttng_userspace_probe_location_lookup_method *lookup_method =
+ NULL;
+ struct lttng_condition *condition = NULL;
+ struct lttng_event_rule *event_rule = NULL;
+ struct lttng_action *action = NULL;
+ struct lttng_trigger *trigger = NULL;
+ const char * const trigger_name = "uprobe_trigger";
+
+ action = lttng_action_notify_create();
+ if (!action) {
+ fail("Failed to create notify action");
+ goto end;
+ }
+
+ lookup_method = lttng_userspace_probe_location_lookup_method_function_elf_create();
+ if (!lookup_method) {
+ fail("Setup error on userspace probe lookup method creation");
+ goto end;
+ }
+
+ probe_location = lttng_userspace_probe_location_function_create(
+ testapp_path, test_symbol_name, lookup_method);
+ if (!probe_location) {
+ fail("Failed to create userspace probe location");
+ goto end;
+ }
+
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+
+ event_rule = lttng_event_rule_uprobe_create();
+ ok(event_rule, "kprobe event rule object creation");
+
+ event_rule_status = lttng_event_rule_uprobe_set_location(
+ event_rule, probe_location);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting uprobe event rule location");
+
+ event_rule_status = lttng_event_rule_uprobe_set_name(
+ event_rule, trigger_name);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting uprobe event rule name: '%s'", trigger_name);
+
+ condition = lttng_condition_event_rule_create(event_rule);
+ ok(condition, "Condition event rule object creation");
+
+ /* Register the trigger for condition. */
+ trigger = lttng_trigger_create(condition, action);
+ if (!trigger) {
+ fail("Failed to create trigger with userspace probe event rule condition and notify action");
+ goto end;
}
- diag("Test trigger for domain %s with buffer_usage_low condition", domain_type_string);
- test_triggers_buffer_usage_condition(session_name, channel_name, domain_type, LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW);
- diag("Test trigger for domain %s with buffer_usage_high condition", domain_type_string);
- test_triggers_buffer_usage_condition(session_name, channel_name, domain_type, LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH);
+ trigger_status = lttng_trigger_set_name(trigger, trigger_name);
+ ok(trigger_status == LTTNG_TRIGGER_STATUS_OK,
+ "Setting name to trigger '%s'", trigger_name);
+
+ ret = lttng_register_trigger(trigger);
+ if (ret) {
+ fail("Failed to register trigger with userspace probe event rule condition and notify action");
+ goto end;
+ }
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ resume_application();
+
+ for (i = 0; i < notification_count; i++) {
+ char *name = get_next_notification_trigger_name(
+ notification_channel);
+
+ ok(strcmp(trigger_name, name) == 0,
+ "Received notification for the expected trigger name: '%s' (%d/%d)",
+ trigger_name, i + 1, notification_count);
+ free(name);
+ }
+end:
+ suspend_application();
+
+ lttng_notification_channel_destroy(notification_channel);
+ lttng_unregister_trigger(trigger);
+ lttng_trigger_destroy(trigger);
+ lttng_action_destroy(action);
+ lttng_event_rule_destroy(event_rule);
+ lttng_condition_destroy(condition);
+ return;
+}
+
+static void test_syscall_event_rule_notification(
+ enum lttng_domain_type domain_type)
+{
+ int i, ret;
+ const int notification_count = 3;
+ enum lttng_notification_channel_status nc_status;
+ enum lttng_event_rule_status event_rule_status;
+ enum lttng_trigger_status trigger_status;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_condition *condition = NULL;
+ struct lttng_event_rule *event_rule = NULL;
+ struct lttng_action *action = NULL;
+ struct lttng_trigger *trigger = NULL;
+ const char * const trigger_name = "syscall_trigger";
+ const char * const syscall_name = "openat";
+
+ action = lttng_action_notify_create();
+ if (!action) {
+ fail("Failed to create notify action");
+ goto end;
+ }
+
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+
+ event_rule = lttng_event_rule_syscall_create();
+ ok(event_rule, "syscall event rule object creation");
+
+ event_rule_status = lttng_event_rule_syscall_set_pattern(
+ event_rule, syscall_name);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting syscall event rule pattern: '%s'", syscall_name);
+
+ condition = lttng_condition_event_rule_create(event_rule);
+ ok(condition, "Condition syscall event rule object creation");
+
+ /* Register the trigger for condition. */
+ trigger = lttng_trigger_create(condition, action);
+ if (!trigger) {
+ fail("Failed to create trigger with syscall event rule condition and notify action");
+ goto end;
+ }
+
+ trigger_status = lttng_trigger_set_name(trigger, trigger_name);
+ ok(trigger_status == LTTNG_TRIGGER_STATUS_OK,
+ "Setting name to trigger '%s'", trigger_name);
+
+ ret = lttng_register_trigger(trigger);
+ if (ret) {
+ fail("Failed to register trigger with syscall event rule condition and notify action");
+ goto end;
+ }
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ resume_application();
+
+ for (i = 0; i < notification_count; i++) {
+ char *name = get_next_notification_trigger_name(
+ notification_channel);
+
+ ok(strcmp(trigger_name, name) == 0,
+ "Received notification for the expected trigger name: '%s' (%d/%d)",
+ trigger_name, i + 1, notification_count);
+ free(name);
+ }
+end:
+ suspend_application();
+ lttng_notification_channel_destroy(notification_channel);
+ lttng_unregister_trigger(trigger);
+ lttng_trigger_destroy(trigger);
+ lttng_action_destroy(action);
+ lttng_condition_destroy(condition);
+ return;
+}
+
+static void test_syscall_event_rule_notification_filter(
+ enum lttng_domain_type domain_type)
+{
+ int i, ret;
+ const int notification_count = 3;
+ enum lttng_notification_channel_status nc_status;
+ enum lttng_event_rule_status event_rule_status;
+ enum lttng_trigger_status trigger_status;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_condition *condition = NULL;
+ struct lttng_event_rule *event_rule = NULL;
+ struct lttng_action *action = NULL;
+ struct lttng_trigger *trigger = NULL;
+ const char * const trigger_name = "syscall_trigger";
+ const char * const syscall_name = "openat";
+ const char * const filter_pattern = "filename == \"/proc/cpuinfo\"";
+
+ action = lttng_action_notify_create();
+ if (!action) {
+ fail("Failed to create notify action");
+ goto end;
+ }
+
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+
+ event_rule = lttng_event_rule_syscall_create();
+ ok(event_rule, "syscall event rule object creation");
+
+ event_rule_status = lttng_event_rule_syscall_set_pattern(
+ event_rule, syscall_name);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting syscall event rule pattern: '%s'", syscall_name);
+
+ event_rule_status = lttng_event_rule_syscall_set_filter(
+ event_rule, filter_pattern);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting filter: '%s'", filter_pattern);
+
+ condition = lttng_condition_event_rule_create(event_rule);
+ ok(condition, "Condition event rule object creation");
+
+ /* Register the triggers for condition */
+ trigger = lttng_trigger_create(condition, action);
+ if (!trigger) {
+ fail("Failed to create trigger with syscall filtering event rule condition and notify action");
+ goto end;
+ }
+
+ trigger_status = lttng_trigger_set_name(trigger, trigger_name);
+ ok(trigger_status == LTTNG_TRIGGER_STATUS_OK,
+ "Setting name to trigger '%s'", trigger_name);
+
+ ret = lttng_register_trigger(trigger);
+ if (ret) {
+ fail("Failed to register trigger with syscall filtering event rule condition and notify action");
+ goto end;
+ }
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ resume_application();
+
+ for (i = 0; i < 3; i++) {
+ char *name = get_next_notification_trigger_name(
+ notification_channel);
+
+ ok(strcmp(trigger_name, name) == 0,
+ "Received notification for the expected trigger name: '%s' (%d/%d)",
+ trigger_name, i + 1, notification_count);
+ free(name);
+ }
+
+end:
+ suspend_application();
+
+ lttng_unregister_trigger(trigger);
+ lttng_notification_channel_destroy(notification_channel);
+ lttng_trigger_destroy(trigger);
+ lttng_event_rule_destroy(event_rule);
+ lttng_condition_destroy(condition);
+ return;
+}
+
+int main(int argc, const char *argv[])
+{
+ int test_scenario;
+ const char *domain_type_string = NULL;
+ enum lttng_domain_type domain_type = LTTNG_DOMAIN_NONE;
+
+ if (argc < 5) {
+ fail("Missing test scenario, domain type, pid, or application state file argument(s)");
+ goto error;
+ }
+
+ test_scenario = atoi(argv[1]);
+ domain_type_string = argv[2];
+ app_pid = (pid_t) atoi(argv[3]);
+ app_state_file = argv[4];
+
+ if (!strcmp("LTTNG_DOMAIN_UST", domain_type_string)) {
+ domain_type = LTTNG_DOMAIN_UST;
+ }
+ if (!strcmp("LTTNG_DOMAIN_KERNEL", domain_type_string)) {
+ domain_type = LTTNG_DOMAIN_KERNEL;
+ }
+ if (domain_type == LTTNG_DOMAIN_NONE) {
+ fail("Unknown domain type");
+ goto error;
+ }
+
+ /*
+ * Test cases are responsible for resuming the app when needed
+ * and making sure it's suspended when returning.
+ */
+ suspend_application();
+
+ switch (test_scenario) {
+ case 1:
+ {
+ plan_tests(38);
+
+ /* Test cases that need gen-ust-event testapp. */
+ diag("Test basic notification error paths for %s domain",
+ domain_type_string);
+ test_invalid_channel_subscription(domain_type);
+
+ diag("Test tracepoint event rule notifications for domain %s",
+ domain_type_string);
+ test_tracepoint_event_rule_notification(domain_type);
+
+ diag("Test tracepoint event rule notifications with filter for domain %s",
+ domain_type_string);
+ test_tracepoint_event_rule_notification_filter(domain_type);
+ break;
+ }
+ case 2:
+ {
+ const char *session_name, *channel_name;
+ /* Test cases that need a tracing session enabled. */
+ plan_tests(99);
+
+ /*
+ * Argument 7 and upward are named pipe location for consumerd
+ * control.
+ */
+ named_pipe_args_start = 7;
+
+ if (argc < 8) {
+ fail("Missing parameter for tests to run %d", argc);
+ goto error;
+ }
+
+ nb_args = argc;
+
+ session_name = argv[5];
+ channel_name = argv[6];
+
+ test_subscription_twice(session_name, channel_name,
+ domain_type);
+
+ diag("Test trigger for domain %s with buffer_usage_low condition",
+ domain_type_string);
+ test_triggers_buffer_usage_condition(session_name, channel_name,
+ domain_type,
+ LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW);
+
+ diag("Test trigger for domain %s with buffer_usage_high condition",
+ domain_type_string);
+ test_triggers_buffer_usage_condition(session_name, channel_name,
+ domain_type,
+ LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH);
+
+ diag("Test buffer usage notification channel api for domain %s",
+ domain_type_string);
+ test_buffer_usage_notification_channel(session_name, channel_name,
+ domain_type, argv);
+ break;
+ }
+ case 3:
+ {
+ /*
+ * Test cases that need a test app with more than one event
+ * type.
+ */
+ plan_tests(19);
+
+ /*
+ * At the moment, the only test case of this scenario is
+ * exclusion which is only supported by UST.
+ */
+ assert(domain_type == LTTNG_DOMAIN_UST);
+ diag("Test tracepoint event rule notifications with exclusion for domain %s",
+ domain_type_string);
+ test_tracepoint_event_rule_notification_exclusion(domain_type);
+
+ break;
+ }
+ case 4:
+ {
+ plan_tests(10);
+
+ /* Test cases that need the kernel tracer. */
+ assert(domain_type == LTTNG_DOMAIN_KERNEL);
+
+ diag("Test kprobe event rule notifications for domain %s",
+ domain_type_string);
+
+ test_kprobe_event_rule_notification(domain_type);
+
+ break;
+ }
+ case 5:
+ {
+ plan_tests(19);
+ /* Test cases that need the kernel tracer. */
+ assert(domain_type == LTTNG_DOMAIN_KERNEL);
+
+ diag("Test syscall event rule notifications for domain %s",
+ domain_type_string);
+
+ test_syscall_event_rule_notification(domain_type);
+
+ diag("Test syscall filtering event rule notifications for domain %s",
+ domain_type_string);
+
+ test_syscall_event_rule_notification_filter(domain_type);
+
+ break;
+ }
+ case 6:
+ {
+ const char *testapp_path, *test_symbol_name;
+
+ plan_tests(10);
+
+ if (argc < 7) {
+ fail("Missing parameter for tests to run %d", argc);
+ goto error;
+ }
+
+ testapp_path = argv[5];
+ test_symbol_name = argv[6];
+ /* Test cases that need the kernel tracer. */
+ assert(domain_type == LTTNG_DOMAIN_KERNEL);
+
+ diag("Test userspace-probe event rule notifications for domain %s",
+ domain_type_string);
+
+ test_uprobe_event_rule_notification(
+ domain_type, testapp_path, test_symbol_name);
+
+ break;
+ }
+ default:
+ abort();
+ }
- diag("Test notification channel api for domain %s", domain_type_string);
- test_notification_channel(session_name, channel_name, domain_type, argv);
error:
return exit_status();
}
projects / lttng-tools.git / blobdiff