X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Ftrigger.c;h=04b3e7f116bc7ba667c96b8570c1621e2a09930e;hp=8c43fdbd8aaa8aa7f7ad1fda253ea8701c7f751c;hb=b61776fb63d4bb14df77c0b5a15de28beed7ddfc;hpb=5c504c41e4d470012cb98c849aa82086d1ba1bde

diff --git a/src/common/trigger.c b/src/common/trigger.c
index 8c43fdbd8..04b3e7f11 100644
--- a/src/common/trigger.c
+++ b/src/common/trigger.c
@@ -7,10 +7,15 @@
 
 #include <lttng/trigger/trigger-internal.h>
 #include <lttng/condition/condition-internal.h>
+#include <lttng/condition/event-rule.h>
+#include <lttng/condition/event-rule-internal.h>
+#include <lttng/condition/buffer-usage.h>
+#include <lttng/event-rule/event-rule-internal.h>
 #include <lttng/action/action-internal.h>
 #include <common/credentials.h>
 #include <common/payload.h>
 #include <common/payload-view.h>
+#include <lttng/domain.h>
 #include <common/error.h>
 #include <common/dynamic-array.h>
 #include <common/optional.h>
@@ -18,7 +23,7 @@
 #include <inttypes.h>
 
 LTTNG_HIDDEN
-bool lttng_trigger_validate(struct lttng_trigger *trigger)
+bool lttng_trigger_validate(const struct lttng_trigger *trigger)
 {
 	bool valid;
 
@@ -79,11 +84,10 @@ struct lttng_condition *lttng_trigger_get_condition(
 	return trigger ? trigger->condition : NULL;
 }
 
-LTTNG_HIDDEN
 const struct lttng_condition *lttng_trigger_get_const_condition(
 		const struct lttng_trigger *trigger)
 {
-	return trigger->condition;
+	return trigger ? trigger->condition : NULL;
 }
 
 
@@ -98,11 +102,10 @@ struct lttng_action *lttng_trigger_get_action(
 	return trigger ? trigger->action : NULL;
 }
 
-LTTNG_HIDDEN
 const struct lttng_action *lttng_trigger_get_const_action(
 		const struct lttng_trigger *trigger)
 {
-	return trigger->action;
+	return trigger ? trigger->action : NULL;
 }
 
 static void trigger_destroy_ref(struct urcu_ref *ref)
@@ -881,3 +884,121 @@ void lttng_trigger_fire(struct lttng_trigger *trigger)
 		abort();
 	};
 }
+
+LTTNG_HIDDEN
+enum lttng_domain_type lttng_trigger_get_underlying_domain_type_restriction(
+		const struct lttng_trigger *trigger)
+{
+	enum lttng_domain_type type = LTTNG_DOMAIN_NONE;
+	const struct lttng_event_rule *event_rule;
+	enum lttng_condition_status c_status;
+	enum lttng_condition_type c_type;
+
+	assert(trigger);
+	assert(trigger->condition);
+
+	c_type = lttng_condition_get_type(trigger->condition);
+	assert (c_type != LTTNG_CONDITION_TYPE_UNKNOWN);
+
+	switch (c_type) {
+	case LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE:
+	case LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING:
+	case LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED:
+		/* Apply to any domain. */
+		type = LTTNG_DOMAIN_NONE;
+		break;
+	case LTTNG_CONDITION_TYPE_EVENT_RULE_HIT:
+		/* Return the domain of the event rule. */
+		c_status = lttng_condition_event_rule_get_rule(
+				trigger->condition, &event_rule);
+		assert(c_status == LTTNG_CONDITION_STATUS_OK);
+		type = lttng_event_rule_get_domain_type(event_rule);
+		break;
+	case LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH:
+	case LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW:
+		/* Return the domain of the channel being monitored. */
+		c_status = lttng_condition_buffer_usage_get_domain_type(
+				trigger->condition, &type);
+		assert(c_status == LTTNG_CONDITION_STATUS_OK);
+		break;
+	default:
+		abort();
+	}
+
+	return type;
+}
+
+/*
+ * Generate bytecode related to the trigger.
+ * On success LTTNG_OK. On error, returns lttng_error code.
+ */
+LTTNG_HIDDEN
+enum lttng_error_code lttng_trigger_generate_bytecode(
+		struct lttng_trigger *trigger,
+		const struct lttng_credentials *creds)
+{
+	enum lttng_error_code ret;
+	struct lttng_condition *condition = NULL;
+
+	condition = lttng_trigger_get_condition(trigger);
+	if (!condition) {
+		ret = LTTNG_ERR_INVALID_TRIGGER;
+		goto end;
+	}
+
+	switch (lttng_condition_get_type(condition)) {
+	case LTTNG_CONDITION_TYPE_EVENT_RULE_HIT:
+	{
+		struct lttng_event_rule *event_rule;
+		const enum lttng_condition_status condition_status =
+				lttng_condition_event_rule_borrow_rule_mutable(
+					condition, &event_rule);
+
+		assert(condition_status == LTTNG_CONDITION_STATUS_OK);
+		ret = lttng_event_rule_generate_filter_bytecode(
+				event_rule, creds);
+		if (ret != LTTNG_OK) {
+			goto end;
+		}
+
+		ret = LTTNG_OK;
+		break;
+	}
+	default:
+		ret = LTTNG_OK;
+		break;
+	}
+end:
+	return ret;
+}
+
+LTTNG_HIDDEN
+struct lttng_trigger *lttng_trigger_copy(const struct lttng_trigger *trigger)
+{
+	int ret;
+	struct lttng_payload copy_buffer;
+	struct lttng_trigger *copy = NULL;
+
+	lttng_payload_init(&copy_buffer);
+
+	ret = lttng_trigger_serialize(trigger, &copy_buffer);
+	if (ret < 0) {
+		goto end;
+	}
+
+	{
+		struct lttng_payload_view view =
+				lttng_payload_view_from_payload(
+						&copy_buffer, 0, -1);
+		ret = lttng_trigger_create_from_payload(
+				&view, &copy);
+		if (ret < 0) {
+			copy = NULL;
+			goto end;
+		}
+	}
+
+end:
+	lttng_payload_reset(&copy_buffer);
+	return copy;
+}