Add new API call lttng_channel_set_default_attr

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

diff --git a/include/lttng/lttng.h b/include/lttng/lttng.h
index 3e5b055625b332772b502160a248b96ea7c01ccb..9ed3f5f9472cd9df737e6e42d3ccc5f849b82903 100644 (file)
--- a/include/lttng/lttng.h
+++ b/include/lttng/lttng.h
@@ -61,10 +61,13 @@ enum lttng_domain_type {
  * Instrumentation type of tracing event.
  */
 enum lttng_event_type {
-       LTTNG_EVENT_TRACEPOINT,
-       LTTNG_EVENT_PROBE,
-       LTTNG_EVENT_FUNCTION,
-       LTTNG_EVENT_FUNCTION_ENTRY,
+       LTTNG_EVENT_ALL                       = -1,
+       LTTNG_EVENT_TRACEPOINT                = 0,
+       LTTNG_EVENT_PROBE                     = 1,
+       LTTNG_EVENT_FUNCTION                  = 2,
+       LTTNG_EVENT_FUNCTION_ENTRY            = 3,
+       LTTNG_EVENT_NOOP                      = 4,
+       LTTNG_EVENT_SYSCALL                   = 5,
 };
 
 /*
@@ -142,6 +145,7 @@ struct lttng_event {
        char name[LTTNG_SYMBOL_NAME_LEN];
        enum lttng_event_type type;
        uint32_t enabled;
+       pid_t pid;
        /* Per event type configuration */
        union {
                struct lttng_event_probe_attr probe;
@@ -185,6 +189,7 @@ struct lttng_session {
        char name[NAME_MAX];
        /* The path where traces are written */
        char path[PATH_MAX];
+       uint32_t enabled;       /* enabled/started: 1, disabled/stopped: 0 */
 };
 
 /*
@@ -205,7 +210,7 @@ struct lttng_handle {
  * array.
  *
  * On error, a negative value is returned being a specific lttng-tools error
- * code which can be humanly interpreted with lttng_get_readable_code(err).
+ * code which can be humanly interpreted with lttng_strerror(err).
  */
 
 /*
@@ -290,14 +295,14 @@ extern int lttng_set_tracing_group(const char *name);
  *
  * Parameter MUST be a negative value or else you'll get a generic message.
  */
-extern const char *lttng_get_readable_code(int code);
+extern const char *lttng_strerror(int code);
 
 /*
  * This call permits to register an "outside consumer" to a session and a lttng
  * domain. No consumer will be spawned and all fds/commands will go through the
  * socket path given (socket_path).
  *
- * NOTE: At the moment, if you use the liblttngkconsumerd, you can only use the
+ * NOTE: At the moment, if you use the liblttng-kconsumer, you can only use the
  * command socket. The error socket is not supported yet for roaming consumers.
  */
 extern int lttng_register_consumer(struct lttng_handle *handle,
@@ -365,4 +370,11 @@ extern int lttng_disable_channel(struct lttng_handle *handle,
 extern int lttng_calibrate(struct lttng_handle *handle,
                struct lttng_calibrate *calibrate);
 
+/*
+ * Set the default channel attributes for a specific domain and an allocated
+ * lttng_channel_attr pointer.
+ */
+extern void lttng_channel_set_default_attr(struct lttng_domain *domain,
+               struct lttng_channel_attr *attr);
+
 #endif /* _LTTNG_H */