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2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 #ifndef _LIBLTTNGCTL_H
20 #define _LIBLTTNGCTL_H
24 #include <uuid/uuid.h>
26 /* Default unix group name for tracing.
28 #define DEFAULT_TRACING_GROUP "tracing"
30 /* Environment variable to set session daemon
33 #define LTTNG_SESSIOND_PATH_ENV "LTTNG_SESSIOND_PATH"
35 /* UUID string length (including \0) */
36 #define UUID_STR_LEN 37
37 /* UUID short string version length (including \0) */
38 #define UUID_SHORT_STR_LEN 9
40 /* Trace type for lttng_trace.
42 enum lttng_trace_type
{
46 /* Simple structure representing a session.
48 struct lttng_session
{
53 /* Simple trace representation.
58 enum lttng_trace_type type
;
61 extern int lttng_create_session(char *name
, uuid_t
*session_id
);
62 extern int lttng_destroy_session(uuid_t
*uuid
);
63 extern int lttng_connect_sessiond(void);
64 extern int lttng_disconnect_sessiond(void);
65 extern int lttng_set_tracing_group(const char *name
);
66 extern int lttng_check_session_daemon(void);
67 extern const char *lttng_get_readable_code(int code
);
68 extern int lttng_ust_list_apps(pid_t
**pids
);
69 extern int lttng_list_sessions(struct lttng_session
**sessions
);
70 extern int lttng_list_traces(uuid_t
*uuid
, struct lttng_trace
**traces
);
71 extern void lttng_set_current_session_uuid(uuid_t
*uuid
);
72 extern int lttng_ust_create_trace(pid_t pid
);
73 extern int lttng_ust_start_trace(pid_t pid
);
74 extern int lttng_ust_stop_trace(pid_t pid
);
77 * Kernel tracer control
79 extern int lttng_kernel_enable_event(char *event_name
);
80 extern int lttng_kernel_disable_event(char *event_name
);
81 extern int lttng_kernel_create_session(void);
82 extern int lttng_kernel_start_tracing(void);
83 extern int lttng_kernel_stop_tracing(void);
84 extern int lttng_kernel_create_channel(int overwrite
,
85 uint64_t subbuf_size
, uint64_t num_subbuf
,
86 unsigned int switch_timer_interval
,
87 unsigned int read_timer_interval
);
89 #endif /* _LIBLTTNGCTL_H */
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