*
* Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; only
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _LTTNG_H
* Domain type are the different possible tracers.
*/
enum lttng_domain_type {
- LTTNG_DOMAIN_KERNEL,
- LTTNG_DOMAIN_UST,
- LTTNG_DOMAIN_UST_EXEC_NAME,
- LTTNG_DOMAIN_UST_PID,
- LTTNG_DOMAIN_UST_PID_FOLLOW_CHILDREN,
-};
-
-struct lttng_domain {
- enum lttng_domain_type type;
- union {
- pid_t pid;
- char exec_name[NAME_MAX];
- } attr;
+ LTTNG_DOMAIN_KERNEL = 1,
+ LTTNG_DOMAIN_UST = 2,
+ LTTNG_DOMAIN_UST_EXEC_NAME = 3,
+ LTTNG_DOMAIN_UST_PID = 4,
+ LTTNG_DOMAIN_UST_PID_FOLLOW_CHILDREN = 5,
};
/*
LTTNG_EVENT_TRACEPOINT,
LTTNG_EVENT_PROBE,
LTTNG_EVENT_FUNCTION,
+ LTTNG_EVENT_FUNCTION_ENTRY,
};
/*
LTTNG_EVENT_CONTEXT_VPPID = 9,
};
+struct lttng_domain {
+ enum lttng_domain_type type;
+ union {
+ pid_t pid;
+ char exec_name[NAME_MAX];
+ } attr;
+};
+
/* Perf counter attributes */
struct lttng_event_perf_counter_ctx {
uint32_t type;
struct lttng_event {
char name[LTTNG_SYMBOL_NAME_LEN];
enum lttng_event_type type;
+ uint32_t enabled;
/* Per event type configuration */
union {
struct lttng_event_probe_attr probe;
*/
struct lttng_channel {
char name[NAME_MAX];
+ uint32_t enabled;
struct lttng_channel_attr attr;
};
/*
* Create tracing session using a name and a path where trace will be written.
*/
-extern int lttng_create_session(char *name, char *path);
+extern int lttng_create_session(const char *name, const char *path);
/*
* Destroy tracing session.
* The session will not be useable anymore, tracing will stopped for all
* registered trace and tracing buffers will be flushed.
*/
-extern int lttng_destroy_session(char *name);
+extern int lttng_destroy_session(const char *name);
/*
- * List tracing sessions.
+ * List all tracing sessions.
*
- * Return the size of the "lttng_session" array. Caller must free(3) the
- * returned data.
+ * Return the size of the "lttng_session" array. Caller must free(3).
*/
extern int lttng_list_sessions(struct lttng_session **sessions);
+/*
+ * List registered domain(s) of a session.
+ *
+ * Return the size of the "lttng_domain" array. Caller must free(3).
+ */
+extern int lttng_list_domains(const char *session_name,
+ struct lttng_domain **domains);
+
+/*
+ * List channel(s) of a session.
+ *
+ * Return the size of the "lttng_channel" array. Caller must free(3).
+ */
+extern int lttng_list_channels(struct lttng_domain *domain,
+ const char *session_name, struct lttng_channel **channels);
+
+/*
+ * List event(s) of a session channel.
+ *
+ * Return the size of the "lttng_event" array. Caller must free(3).
+ */
+extern int lttng_list_events(struct lttng_domain *domain,
+ const char *session_name, const char *channel_name,
+ struct lttng_event **events);
+
+/*
+ * List available tracepoints of domain.
+ *
+ * Return the size of the "lttng_event" array. Caller must free(3).
+ */
+extern int lttng_list_tracepoints(struct lttng_domain *domain,
+ struct lttng_event **events);
+
/*
* Check if a session daemon is alive.
*/
* it's not done, you'll get an error saying that the session is not found.
* It avoids the use of a session name on every API call.
*/
-extern void lttng_set_session_name(char *name);
+extern void lttng_set_session_name(const char *name);
/*
* Return a human readable error message of a lttng-tools error code.
/*
* Start tracing for *all* registered trace (kernel and user-space).
*/
-extern int lttng_start_tracing(char *session_name);
+extern int lttng_start_tracing(const char *session_name);
/*
* Stop tracing for *all* registered trace (kernel and user-space).
*/
-extern int lttng_stop_tracing(char *session_name);
+extern int lttng_stop_tracing(const char *session_name);
/*
* Add context to event for a specific channel.
*/
extern int lttng_add_context(struct lttng_domain *domain,
- struct lttng_event_context *ctx, char *event_name, char *channel_name);
+ struct lttng_event_context *ctx, const char *event_name,
+ const char *channel_name);
/*
* Create or enable a kernel event.
* If channel_name is NULL, the default channel is used (channel0).
*/
extern int lttng_enable_event(struct lttng_domain *domain, struct lttng_event *ev,
- char *channel_name);
+ const char *channel_name);
/*
* Create or enable a kernel channel.
*
* If name is NULL, the default channel is enabled (channel0).
*/
-extern int lttng_enable_channel(struct lttng_domain *domain, struct lttng_channel *chan);
+extern int lttng_enable_channel(struct lttng_domain *domain,
+ struct lttng_channel *chan);
/*
* Disable kernel event.
*
* If channel_name is NULL, the default channel is used (channel0).
*/
-extern int lttng_disable_event(struct lttng_domain *domain, char *name,
- char *channel_name);
+extern int lttng_disable_event(struct lttng_domain *domain, const char *name,
+ const char *channel_name);
/*
* Disable kernel channel.
*
* If channel_name is NULL, the default channel is disabled (channel0).
*/
-extern int lttng_disable_channel(struct lttng_domain *domain, char *name);
-
-/*
- * List kernel events.
- *
- * Return the size of the allocated event list. Caller must free(3) the data.
- */
-extern int lttng_list_events(struct lttng_domain *domain, char **event_list);
+extern int lttng_disable_channel(struct lttng_domain *domain,
+ const char *name);
#endif /* _LTTNG_H */
projects / lttng-tools.git / blobdiff