X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=include%2Flttng%2Ftrigger%2Ftrigger-internal.h;h=80cf0cb56023260ef3236110af266edf3a319b8a;hb=f2bda80eb1fe2f73dda9a7590d9960cdccb0f733;hp=f16b68d00fd88412af0e649e02aef3447b434c11;hpb=9c374932629a1c25927dad13fce02ba1c4892cf7;p=lttng-tools.git

diff --git a/include/lttng/trigger/trigger-internal.h b/include/lttng/trigger/trigger-internal.h
index f16b68d00..80cf0cb56 100644
--- a/include/lttng/trigger/trigger-internal.h
+++ b/include/lttng/trigger/trigger-internal.h
@@ -12,7 +12,7 @@
 #include <common/dynamic-array.h>
 #include <common/macros.h>
 #include <common/optional.h>
-#include <lttng/trigger/trigger.h>
+#include <lttng/lttng.h>
 #include <pthread.h>
 #include <stdbool.h>
 #include <stdint.h>
@@ -21,6 +21,8 @@
 
 struct lttng_payload;
 struct lttng_payload_view;
+struct mi_writer;
+struct mi_lttng_error_query_callbacks;
 
 struct lttng_trigger {
 	/* Reference counting is only exposed to internal users. */
@@ -51,6 +53,23 @@ struct lttng_trigger {
 	 */
 	bool registered;
 
+	/*
+	 * A "hidden" trigger is a trigger that is not externally listed.
+	 * It is used to hide triggers that are used internally by the session
+	 * daemon so that they can't be listed nor unregistered by external
+	 * clients.
+	 *
+	 * This is a property that can only be set internally by the session
+	 * daemon. As such, it is not serialized nor set by a
+	 * "create_from_buffer" constructor.
+	 *
+	 * The hidden property is preserved by copies.
+	 *
+	 * Note that notifications originating from an "hidden" trigger will not
+	 * be sent to clients that are not within the session daemon's process.
+	 */
+	bool is_hidden;
+
 	/*
 	 * The lock is used to protect against concurrent trigger execution and
 	 * trigger removal.
@@ -116,12 +135,28 @@ LTTNG_HIDDEN
 bool lttng_trigger_is_equal(
 		const struct lttng_trigger *a, const struct lttng_trigger *b);
 
+LTTNG_HIDDEN
+bool lttng_trigger_is_hidden(const struct lttng_trigger *trigger);
+
+LTTNG_HIDDEN
+void lttng_trigger_set_hidden(struct lttng_trigger *trigger);
+
 LTTNG_HIDDEN
 void lttng_trigger_get(struct lttng_trigger *trigger);
 
 LTTNG_HIDDEN
 void lttng_trigger_put(struct lttng_trigger *trigger);
 
+/*
+ * Serialize a trigger to a mi_writer.
+ * Return LTTNG_OK in success, other enum lttng_error_code on error.
+ */
+LTTNG_HIDDEN
+enum lttng_error_code lttng_trigger_mi_serialize(const struct lttng_trigger *trigger,
+		struct mi_writer *writer,
+		const struct mi_lttng_error_query_callbacks
+				*error_query_callbacks);
+
 /*
  * Allocate a new set of triggers.
  * The returned object must be freed via lttng_triggers_destroy.
@@ -153,6 +188,12 @@ LTTNG_HIDDEN
 int lttng_triggers_add(
 		struct lttng_triggers *triggers, struct lttng_trigger *trigger);
 
+/*
+ * Remove all triggers marked as hidden from the provided trigger set.
+ */
+LTTNG_HIDDEN
+int lttng_triggers_remove_hidden_triggers(struct lttng_triggers *triggers);
+
 /*
  * Serialize a trigger set to an lttng_payload object.
  * Return LTTNG_OK on success, negative lttng error code on error.
@@ -165,6 +206,16 @@ LTTNG_HIDDEN
 ssize_t lttng_triggers_create_from_payload(struct lttng_payload_view *view,
 		struct lttng_triggers **triggers);
 
+/*
+ * Serialize a trigger set to a mi_writer.
+ * Return LTTNG_OK in success, other enum lttng_error_code on error.
+ */
+LTTNG_HIDDEN
+enum lttng_error_code lttng_triggers_mi_serialize(const struct lttng_triggers *triggers,
+		struct mi_writer *writer,
+		const struct mi_lttng_error_query_callbacks
+				*error_query_callbacks);
+
 LTTNG_HIDDEN
 const struct lttng_credentials *lttng_trigger_get_credentials(
 		const struct lttng_trigger *trigger);
@@ -190,6 +241,12 @@ enum lttng_error_code lttng_trigger_generate_bytecode(
 		struct lttng_trigger *trigger,
 		const struct lttng_credentials *creds);
 
+/*
+ * Note that the trigger object is not locked by "copy" as it is const and
+ * used with a number of 'const' triggers. If the trigger could be shared at
+ * the moment of the copy, it is the caller's responsability to lock it for
+ * the duration of the copy.
+ */
 LTTNG_HIDDEN
 struct lttng_trigger *lttng_trigger_copy(const struct lttng_trigger *trigger);
 
@@ -226,4 +283,34 @@ void lttng_trigger_lock(struct lttng_trigger *trigger);
 LTTNG_HIDDEN
 void lttng_trigger_unlock(struct lttng_trigger *trigger);
 
+LTTNG_HIDDEN
+enum lttng_trigger_status lttng_trigger_add_error_results(
+		const struct lttng_trigger *trigger,
+		struct lttng_error_query_results *results);
+
+LTTNG_HIDDEN
+enum lttng_trigger_status lttng_trigger_condition_add_error_results(
+		const struct lttng_trigger *trigger,
+		struct lttng_error_query_results *results);
+
+LTTNG_HIDDEN
+enum lttng_trigger_status lttng_trigger_add_action_error_query_results(
+		struct lttng_trigger *trigger,
+		struct lttng_error_query_results *results);
+
+/*
+ * Set the trigger name.
+ *
+ * A name is optional.
+ * A name will be assigned on trigger registration if no name is set.
+ *
+ * The name is copied.
+ *
+ * Return LTTNG_TRIGGER_STATUS_OK on success, LTTNG_TRIGGER_STATUS_INVALID
+ * if invalid parameters are passed.
+ */
+LTTNG_HIDDEN
+enum lttng_trigger_status lttng_trigger_set_name(
+		struct lttng_trigger *trigger, const char *name);
+
 #endif /* LTTNG_TRIGGER_INTERNAL_H */