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; only version 2
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.
25 #include <sys/types.h>
28 #include "../command.h"
30 static char *opt_session_name
;
37 static struct poptOption long_options
[] = {
38 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
39 {"help", 'h', POPT_ARG_NONE
, 0, OPT_HELP
, 0, 0},
40 {"list-options", 0, POPT_ARG_NONE
, NULL
, OPT_LIST_OPTIONS
, NULL
, NULL
},
47 static void usage(FILE *ofp
)
49 fprintf(ofp
, "usage: lttng start [options] [NAME]\n");
51 fprintf(ofp
, "Where NAME is an optional session name. If not specified, lttng will\n");
52 fprintf(ofp
, "get it from the configuration directory (.lttng).\n");
54 fprintf(ofp
, " -h, --help Show this help\n");
55 fprintf(ofp
, " --list-options Simple listing of options\n");
62 * Start tracing for all trace of the session.
64 static int start_tracing(void)
69 if (opt_session_name
== NULL
) {
70 session_name
= get_session_name();
71 if (session_name
== NULL
) {
76 session_name
= opt_session_name
;
79 DBG("Starting tracing for session %s", session_name
);
81 ret
= lttng_start_tracing(session_name
);
83 /* Don't set ret so lttng can interpret the sessiond error. */
89 MSG("Tracing started for session %s", session_name
);
92 if (opt_session_name
== NULL
) {
102 * The 'start <options>' first level command
104 int cmd_start(int argc
, const char **argv
)
106 int opt
, ret
= CMD_SUCCESS
;
107 static poptContext pc
;
109 pc
= poptGetContext(NULL
, argc
, argv
, long_options
, 0);
110 poptReadDefaultConfig(pc
, 0);
112 while ((opt
= poptGetNextOpt(pc
)) != -1) {
117 case OPT_LIST_OPTIONS
:
118 list_cmd_options(stdout
, long_options
);
127 opt_session_name
= (char*) poptGetArg(pc
);
129 ret
= start_tracing();
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