Add ust create trace feature
[lttng-tools.git] / lttng / options.c
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1/*
2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
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3 *
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.
8 *
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.
13 *
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.
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17 */
18
19#include <popt.h>
20#include <stdlib.h>
21
22#include "lttng.h"
23
24/* Option variables */
25char *opt_tracing_group;
e8be5f4f 26char *opt_session_uuid;
aaf97519 27char *opt_create_session;
5b8719f5 28char *opt_sessiond_path;
8028d920 29char *opt_destroy_session;
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30int opt_trace_kernel = 0;
31int opt_quiet = 0;
32int opt_verbose = 0;
33int opt_list_apps = 0;
5b8719f5 34int opt_no_sessiond = 0;
57167058 35int opt_list_session = 0;
df0da139 36pid_t opt_create_trace = 0;
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37
38enum {
39 OPT_HELP = 42,
40};
41
42static struct poptOption long_options[] = {
43 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
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44 {"create-session", 'c', POPT_ARG_STRING, &opt_create_session, 0, 0, 0},
45 {"create-trace", 'C', POPT_ARG_INT, &opt_create_trace, 0, 0, 0},
46 {"destroy-session", 'd', POPT_ARG_STRING, &opt_destroy_session, 0, 0, 0},
fac6795d 47 {"group", 0, POPT_ARG_STRING, &opt_tracing_group, 0, 0},
df0da139 48 {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0},
fac6795d 49 {"kernel", 0, POPT_ARG_VAL, &opt_trace_kernel, 1, 0, 0},
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50 {"list-apps", 'L', POPT_ARG_VAL, &opt_list_apps, 1, 0, 0},
51 {"list-sessions", 'l', POPT_ARG_VAL, &opt_list_session, 1, 0, 0},
fac6795d 52 {"no-kernel", 0, POPT_ARG_VAL, &opt_trace_kernel, 0, 0, 0},
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53 {"no-sessiond", 0, POPT_ARG_VAL, &opt_no_sessiond, 1, 0, 0},
54 {"quiet", 'q', POPT_ARG_VAL, &opt_quiet, 1, 0, 0},
55 {"session", 's', POPT_ARG_STRING, &opt_session_uuid, 0, 0, 0},
56 {"sessiond-path", 0, POPT_ARG_STRING, &opt_sessiond_path, 0, 0, 0},
57 {"verbose", 'v', POPT_ARG_VAL, &opt_verbose, 1, 0, 0},
e8be5f4f 58 //{"session", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_session_name, 0, 0},
df0da139 59 {0, 0, 0, 0, 0, 0, 0}
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60};
61
62
63/*
64 * usage
65 */
66static void usage(FILE *ofp)
67{
68 fprintf(ofp, "LTTng Trace Control " VERSION"\n\n");
69 fprintf(ofp, "usage : lttng [OPTION]\n");
70 fprintf(ofp, "\n");
71 fprintf(ofp, "Options:\n");
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72 fprintf(ofp, " -v, --verbose Verbose mode\n");
73 fprintf(ofp, " -q, --quiet Quiet mode\n");
74 fprintf(ofp, " --help Show help\n");
75 fprintf(ofp, " --group NAME Unix tracing group name. (default: tracing)\n");
df0da139 76 fprintf(ofp, " --no-sessiond Don't spawn a session daemon\n");
aaf97519 77 fprintf(ofp, " --sessiond-path Session daemon full path\n");
fac6795d 78 fprintf(ofp, "\n");
57167058 79 fprintf(ofp, "Session options:\n");
aaf97519 80 fprintf(ofp, " -c, --create-session NAME Create a new session\n");
fabf6cff 81 fprintf(ofp, " -l, --list-sessions List all available sessions\n");
df0da139 82 fprintf(ofp, " -s, --session UUID Specify tracing session using UUID\n");
8028d920 83 fprintf(ofp, " -d, --destroy-session=NAME Destroy the session specified by NAME\n");
57167058 84 fprintf(ofp, "\n");
fac6795d 85 fprintf(ofp, "Tracing options:\n");
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86 //fprintf(ofp, " --kernel Enable kernel tracing\n");
87 //fprintf(ofp, " --no-kernel Disable kernel tracing\n");
fabf6cff 88 fprintf(ofp, " -L, --list-apps List traceable UST applications\n");
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89 fprintf(ofp, " -C, --create-trace PID Create trace for PID\n");
90 fprintf(ofp, "\n");
91 fprintf(ofp, "Please see the lttng(1) man page for full documentation.\n");
92 fprintf(ofp, "See http://lttng.org/ust for updates, bug reports and news.\n");
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93}
94
95/*
96 * parse_args
97 *
98 * Parse command line arguments.
99 * Return 0 if OK, else -1
100 */
101int parse_args(int argc, const char **argv)
102{
103 static poptContext pc;
104 int opt;
105
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106 /* If no options, fail */
107 if (argc < 2) {
108 return -1;
109 }
110
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111 pc = poptGetContext("lttng", argc, argv, long_options, 0);
112 poptReadDefaultConfig(pc, 0);
113
114 while ((opt = poptGetNextOpt(pc)) != -1) {
115 switch (opt) {
116 case OPT_HELP:
117 usage(stderr);
118 clean_exit(EXIT_SUCCESS);
119 break;
120 default:
121 usage(stderr);
122 clean_exit(EXIT_FAILURE);
123 break;
124 }
125 }
126
127 if (pc) {
128 poptFreeContext(pc);
129 }
130
131 return 0;
132}
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