#define LTTNG_TRIGGER_H
#include <sys/types.h>
+#include <inttypes.h>
struct lttng_action;
struct lttng_condition;
LTTNG_TRIGGER_STATUS_PERMISSION_DENIED = -6,
};
+enum lttng_trigger_firing_policy {
+ LTTNG_TRIGGER_FIRING_POLICY_EVERY_N = 0,
+ LTTNG_TRIGGER_FIRING_POLICY_ONCE_AFTER_N = 1,
+};
+
/*
* Create a trigger object associating a condition and an action.
*
extern enum lttng_trigger_status lttng_trigger_set_name(
struct lttng_trigger *trigger, const char *name);
+/*
+ * Set the trigger firing policy.
+ *
+ * This is optional. By default a trigger is set to fire each time the
+ * associated condition occurs.
+ *
+ * Threshold is the number of times the condition must be hit before the policy
+ * is enacted.
+ *
+ * Return LTTNG_TRIGGER_STATUS_OK on success, LTTNG_TRIGGER_STATUS_INVALID
+ * if invalid parameters are passed.
+ */
+extern enum lttng_trigger_status lttng_trigger_set_firing_policy(
+ struct lttng_trigger *trigger,
+ enum lttng_trigger_firing_policy policy_type,
+ uint64_t threshold);
+
+/*
+ * Get the trigger firing policy.
+ *
+ * Threshold is the number of time the condition must be hit before the policy is
+ * enacted.
+ *
+ * Return LTTNG_TRIGGER_STATUS_OK on success, LTTNG_TRIGGER_STATUS_INVALID
+ * if invalid parameters are passed.
+ */
+extern enum lttng_trigger_status lttng_trigger_get_firing_policy(
+ const struct lttng_trigger *trigger,
+ enum lttng_trigger_firing_policy *policy_type,
+ uint64_t *threshold);
+
/*
* Destroy (frees) a trigger object.
*/