lttng-sessiond: keep enabled/active state for sessions, cleanup enabled state for...

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

diff --git a/include/lttng/lttng.h b/include/lttng/lttng.h
index efb67fa697c5578af761ff2ee9e16b4274fc0c34..280075037abdf9515111b90f4cb0756f33d752c3 100644 (file)
--- a/include/lttng/lttng.h
+++ b/include/lttng/lttng.h
@@ -61,12 +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_NOOP,
-       LTTNG_EVENT_SYSCALLS,
+       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,
 };
 
 /*
@@ -144,6 +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;
@@ -187,6 +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 */
 };
 
 /*
@@ -207,7 +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).
  */
 
 /*
@@ -292,14 +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,