X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=include%2Flttng%2Fsession.h;h=4a7f0c8c5bdac292a9532161d88b5a06d0613c35;hb=ee9c58e03e9f02c2966b43df2d71716dc02a54ed;hp=302f0fc026fc112a1e7d2effd635ed04a4db7da3;hpb=a5dfbb9db7ba31913657ed921006b13977b7b426;p=deliverable%2Flttng-tools.git

diff --git a/include/lttng/session.h b/include/lttng/session.h
index 302f0fc02..4a7f0c8c5 100644
--- a/include/lttng/session.h
+++ b/include/lttng/session.h
@@ -22,6 +22,33 @@
 extern "C" {
 #endif
 
+#include <lttng/constant.h>
+
+enum lttng_tracker_type {
+	LTTNG_TRACKER_PID = 0,
+	LTTNG_TRACKER_VPID,
+	LTTNG_TRACKER_UID,
+	LTTNG_TRACKER_GID,
+	LTTNG_TRACKER_VUID,
+	LTTNG_TRACKER_VGID,
+};
+
+enum lttng_tracker_id_type {
+	LTTNG_ID_UNKNOWN = -1,
+
+	LTTNG_ID_ALL,
+	LTTNG_ID_VALUE,
+	LTTNG_ID_STRING,
+};
+
+struct lttng_tracker_id {
+	enum lttng_tracker_id_type type;
+	int value;
+	char *string;
+};
+
+struct lttng_handle;
+
 /*
  * Basic session information.
  *
@@ -32,7 +59,7 @@ extern "C" {
  */
 #define LTTNG_SESSION_PADDING1             12
 struct lttng_session {
-	char name[NAME_MAX];
+	char name[LTTNG_NAME_MAX];
 	/* The path where traces are written */
 	char path[PATH_MAX];
 	uint32_t enabled;	/* enabled/started: 1, disabled/stopped: 0 */
@@ -90,12 +117,25 @@ extern int lttng_create_session_live(const char *name, const char *url,
  * The session will not be usable, tracing will be stopped thus buffers will be
  * flushed.
  *
+ * This call will wait for data availability for each domain of the session,
+ * which can take an arbitrary amount of time. However, when returning the
+ * tracing data is guaranteed to be ready to be read and analyzed.
+ *
+ * lttng_destroy_session_no_wait() may be used if such a guarantee is not
+ * needed.
+ *
  * The name can't be NULL here.
  *
  * Return 0 on success else a negative LTTng error code.
  */
 extern int lttng_destroy_session(const char *name);
 
+/*
+ * Behaves exactly like lttng_destroy_session but does not wait for data
+ * availability.
+ */
+extern int lttng_destroy_session_no_wait(const char *name);
+
 /*
  * List all the tracing sessions.
  *
@@ -116,6 +156,48 @@ extern int lttng_list_sessions(struct lttng_session **sessions);
 extern int lttng_set_session_shm_path(const char *session_name,
 		const char *shm_path);
 
+/*
+ * Add ID to session tracker.
+ *
+ * tracker_type is the type of tracker.
+ * An id argument >= 0 adds the ID to the session tracker.
+ * An id argument of -1 means "track all IDs".
+ *
+ * Return 0 on success else a negative LTTng error code.
+ */
+extern int lttng_track_id(struct lttng_handle *handle,
+		enum lttng_tracker_type tracker_type,
+		struct lttng_tracker_id *id);
+
+/*
+ * Remove ID from session tracker.
+ *
+ * tracker_type is the type of tracker.
+ * An id argument >= 0 removes the ID from the session tracker.
+ * An id argument of -1 means "untrack all IDs".
+ *
+ * Return 0 on success else a negative LTTng error code.
+ */
+extern int lttng_untrack_id(struct lttng_handle *handle,
+		enum lttng_tracker_type tracker_type,
+		struct lttng_tracker_id *id);
+
+/*
+ * List IDs in the tracker.
+ *
+ * tracker_type is the type of tracker.
+ * ids is set to an allocated array of IDs currently tracked. On
+ * success, ids and the strings it contains must be freed by the
+ * caller.
+ * nr_ids is set to the number of entries contained by the ids array.
+ *
+ * Returns 0 on success, else a negative LTTng error code.
+ */
+extern int lttng_list_tracker_ids(struct lttng_handle *handle,
+		enum lttng_tracker_type tracker_type,
+		struct lttng_tracker_id **ids,
+		size_t *nr_ids);
+
 /*
  * Add PID to session tracker.
  *
@@ -139,10 +221,10 @@ extern int lttng_untrack_pid(struct lttng_handle *handle, int pid);
 /*
  * List PIDs in the tracker.
  *
- * @enabled is set to whether the PID tracker is enabled.
- * @pids is set to an allocated array of PIDs currently tracked. On
- * success, @pids must be freed by the caller.
- * @nr_pids is set to the number of entries contained by the @pids array.
+ * enabled is set to whether the PID tracker is enabled.
+ * pids is set to an allocated array of PIDs currently tracked. On
+ * success, pids must be freed by the caller.
+ * nr_pids is set to the number of entries contained by the pids array.
  *
  * Returns 0 on success, else a negative LTTng error code.
  */