rotation-api: pass session name explicitly

[lttng-tools.git] / include / lttng / rotation.h

diff --git a/include/lttng/rotation.h b/include/lttng/rotation.h
index dbc0183da7e856a26df927c454df439b2e5f3a37..6091a7b988078039f73d641a6329cd6045f21701 100644 (file)
--- a/include/lttng/rotation.h
+++ b/include/lttng/rotation.h
@@ -88,25 +88,14 @@ struct lttng_rotation_schedule_attr;
 struct lttng_rotation_handle;
 
 /*
- * Return a newly allocated immediate session rotation descriptor object or NULL
- * on error.
- */
-extern struct lttng_rotation_immediate_attr *
-lttng_rotation_immediate_attr_create(void);
-
-/*
- * Return a newly allocated scheduled rotate session descriptor object or NULL
+ * Return a newly allocated session rotation schedule descriptor object or NULL
  * on error.
+ *
+ * The rotation schedule may be expressed as a size or as a time period.
  */
 extern struct lttng_rotation_schedule_attr *
 lttng_rotation_schedule_attr_create(void);
 
-/*
- * Destroy a given immediate session rotation descriptor object.
- */
-extern void lttng_rotation_immediate_attr_destroy(
-               struct lttng_rotation_immediate_attr *attr);
-
 /*
  * Destroy a given scheduled rotate session descriptor object.
  */
@@ -114,33 +103,13 @@ extern void lttng_rotation_schedule_attr_destroy(
                struct lttng_rotation_schedule_attr *attr);
 
 /*
- * Set the name of the session to rotate immediately.
- *
- * The session_name parameter is copied to the immediate session rotation
- * attributes.
- */
-extern enum lttng_rotation_status lttng_rotation_immediate_attr_set_session_name(
-               struct lttng_rotation_immediate_attr *attr,
-               const char *session_name);
-
-/*
- * Set the name of the session to rotate automatically.
- *
- * The session_name parameter is copied to the immediate session rotation
- * attributes.
- */
-extern enum lttng_rotation_status lttng_rotation_schedule_attr_set_session_name(
-               struct lttng_rotation_schedule_attr *attr,
-               const char *session_name);
-
-/*
- * Set the timer to periodically rotate the session (µs, -1ULL to disable).
+ * Set the timer to periodically rotate the session (in µs).
  */
 extern enum lttng_rotation_status lttng_rotation_schedule_attr_set_timer_period(
                struct lttng_rotation_schedule_attr *attr, uint64_t timer);
 
 /*
- * Set the size to rotate the session (bytes, -1ULL to disable).
+ * Set the size to rotate the session (in bytes).
  */
 void lttng_rotation_schedule_attr_set_size(
                struct lttng_rotation_schedule_attr *attr, uint64_t size);
@@ -179,22 +148,26 @@ extern void lttng_rotation_handle_destroy(
                struct lttng_rotation_handle *rotation_handle);
 
 /*
- * Rotate the output folder of the session
+ * Rotate the output folder of the session.
  *
  * On success, handle is allocated and can be used to monitor the progress
  * of the rotation with lttng_rotation_get_state(). The handle must be freed
  * by the caller with lttng_rotation_handle_destroy().
  *
+ * Passing NULL as the immediate rotation attribute results in the default
+ * options being used.
+ *
  * Return 0 if the rotate action was successfully launched or a negative
  * LTTng error code on error.
  */
-extern int lttng_rotate_session(struct lttng_rotation_immediate_attr *attr,
+extern int lttng_rotate_session(const char *session_name,
+               struct lttng_rotation_immediate_attr *attr,
                struct lttng_rotation_handle **rotation_handle);
 
 /*
- * Configure a session to rotate periodically or based on the size written.
+ * Configure a session to rotate according to a given schedule.
  */
-extern int lttng_rotation_set_schedule(
+extern int lttng_rotation_set_schedule(const char *session_name,
                struct lttng_rotation_schedule_attr *attr);
 
 /*