1 /* Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License
5 * as published by the Free Software Foundation; either version 2
6 * of the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 #ifndef _LIBLTTSESSIONDCOMM_H
20 #define _LIBLTTSESSIONDCOMM_H
23 #include <uuid/uuid.h>
25 /* Default unix socket path */
26 #define DEFAULT_GLOBAL_CLIENT_UNIX_SOCK "/tmp/client-ltt-sessiond"
27 #define DEFAULT_GLOBAL_APPS_UNIX_SOCK "/tmp/apps-ltt-sessiond"
28 #define DEFAULT_HOME_APPS_UNIX_SOCK "%s/.apps-ltt-sessiond"
29 #define DEFAULT_HOME_CLIENT_UNIX_SOCK "%s/.client-ltt-sessiond"
31 /* Queue size of listen(2) */
34 /* Maximum amount of PID the list_apps command
35 * can send back to the lttng client.
37 #define MAX_APPS_PID 20
39 /* Get the error code index from 0 since
40 * LTTCOMM_OK start at 1000
42 #define LTTCOMM_ERR_INDEX(code) (code - LTTCOMM_OK)
44 enum lttcomm_command_type
{
46 LTTNG_DESTROY_SESSION
,
47 LTTNG_FORCE_SUBBUF_SWITCH
,
48 LTTNG_GET_ALL_SESSION
,
50 LTTNG_GET_SUBBUF_NUM_SIZE
,
53 LTTNG_LIST_TRACE_EVENTS
,
57 LTTNG_SET_SUBBUF_SIZE
,
71 enum lttcomm_return_code
{
72 LTTCOMM_OK
= 1000, /* Ok */
73 LTTCOMM_ERR
, /* Unknown Error */
74 LTTCOMM_UND
, /* Undefine command */
75 LTTCOMM_ALLOC_FAIL
, /* Trace allocation fail */
76 LTTCOMM_NO_SESSION
, /* No session found */
77 LTTCOMM_CREATE_FAIL
, /* Create trace fail */
78 LTTCOMM_SESSION_FAIL
, /* Create session fail */
79 LTTCOMM_START_FAIL
, /* Start tracing fail */
80 LTTCOMM_LIST_FAIL
, /* Listing apps fail */
81 LTTCOMM_NR
, /* Last element */
85 * Data structure for ltt-session received message
87 struct lttcomm_session_msg
{
88 /* Common data to almost all command */
89 enum lttcomm_command_type cmd_type
;
91 char trace_name
[NAME_MAX
];
92 char session_name
[NAME_MAX
];
100 char channel
[NAME_MAX
];
101 char marker
[NAME_MAX
];
105 char sock_path
[PATH_MAX
];
109 unsigned int subbuf_num
;
110 char channel
[NAME_MAX
];
112 /* SET_SUBBUF_SIZE */
114 unsigned int subbuf_size
;
115 char channel
[NAME_MAX
];
121 * Data structure for the lttng client response
123 struct lttcomm_lttng_msg
{
124 enum lttcomm_command_type cmd_type
;
125 enum lttcomm_return_code ret_code
;
128 char trace_name
[NAME_MAX
];
133 pid_t pids
[MAX_APPS_PID
];
138 extern int lttcomm_create_unix_sock(const char *pathname
);
139 extern int lttcomm_connect_unix_sock(const char *pathname
);
140 extern int lttcomm_accept_unix_sock(int sock
);
141 extern int lttcomm_listen_unix_sock(int sock
);
142 extern ssize_t
lttcomm_recv_unix_sock(int sock
, void *buf
, size_t len
);
143 extern ssize_t
lttcomm_send_unix_sock(int sock
, void *buf
, size_t len
);
144 extern const char *lttcomm_get_readable_code(enum lttcomm_return_code code
);
146 #endif /* _LIBLTTSESSIONDCOMM_H */