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f3ed775e DG |
1 | /* |
2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
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 | |
82a3637f DG |
6 | * as published by the Free Software Foundation; only version 2 |
7 | * of the License. | |
f3ed775e DG |
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. | |
17 | */ | |
18 | ||
19 | #define _GNU_SOURCE | |
20 | #include <popt.h> | |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
24 | #include <sys/stat.h> | |
25 | #include <sys/types.h> | |
26 | #include <unistd.h> | |
27 | ||
6e2d116c DG |
28 | #include "../cmd.h" |
29 | #include "../conf.h" | |
30 | #include "../utils.h" | |
f3ed775e DG |
31 | |
32 | static char *opt_session_name; | |
33 | ||
34 | enum { | |
35 | OPT_HELP = 1, | |
36 | }; | |
37 | ||
38 | static struct poptOption long_options[] = { | |
39 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
40 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
41 | {0, 0, 0, 0, 0, 0, 0} | |
42 | }; | |
43 | ||
44 | /* | |
45 | * usage | |
46 | */ | |
47 | static void usage(FILE *ofp) | |
48 | { | |
49 | fprintf(ofp, "usage: lttng destroy [options] [NAME]\n"); | |
50 | fprintf(ofp, "\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"); | |
53 | fprintf(ofp, "\n"); | |
54 | fprintf(ofp, " -h, --help Show this help\n"); | |
55 | fprintf(ofp, "\n"); | |
56 | } | |
57 | ||
58 | /* | |
59 | * destroy_session | |
60 | * | |
61 | * Destroy a session removing the config directory and unregistering to the | |
62 | * session daemon. | |
63 | */ | |
64 | static int destroy_session() | |
65 | { | |
66 | int ret; | |
67 | char *session_name, *path; | |
68 | ||
69 | if (opt_session_name == NULL) { | |
70 | session_name = get_session_name(); | |
71 | if (session_name == NULL) { | |
72 | ret = CMD_ERROR; | |
73 | goto error; | |
74 | } | |
75 | } else { | |
76 | session_name = opt_session_name; | |
77 | } | |
78 | ||
79 | ret = lttng_destroy_session(session_name); | |
80 | if (ret < 0) { | |
81 | goto free_name; | |
82 | } | |
83 | ||
58a97671 | 84 | path = config_get_default_path(); |
f3ed775e DG |
85 | if (path == NULL) { |
86 | ret = CMD_FATAL; | |
87 | goto free_name; | |
88 | } | |
89 | ||
90 | if (opt_session_name == NULL) { | |
91 | config_destroy(path); | |
92 | MSG("Session %s destroyed at %s", session_name, path); | |
93 | } else { | |
94 | MSG("Session %s destroyed", session_name); | |
95 | } | |
96 | ||
f3ed775e DG |
97 | ret = CMD_SUCCESS; |
98 | ||
99 | free_name: | |
b73d0b29 MD |
100 | if (opt_session_name == NULL) { |
101 | free(session_name); | |
102 | } | |
f3ed775e DG |
103 | error: |
104 | return ret; | |
105 | } | |
106 | ||
107 | /* | |
108 | * cmd_destroy | |
109 | * | |
110 | * The 'destroy <options>' first level command | |
111 | */ | |
112 | int cmd_destroy(int argc, const char **argv) | |
113 | { | |
114 | int opt, ret = CMD_SUCCESS; | |
115 | static poptContext pc; | |
116 | ||
117 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
118 | poptReadDefaultConfig(pc, 0); | |
119 | ||
120 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
121 | switch (opt) { | |
122 | case OPT_HELP: | |
123 | usage(stderr); | |
124 | goto end; | |
125 | default: | |
126 | usage(stderr); | |
127 | ret = CMD_UNDEFINED; | |
128 | goto end; | |
129 | } | |
130 | } | |
131 | ||
132 | opt_session_name = (char*) poptGetArg(pc); | |
133 | ||
134 | ret = destroy_session(); | |
135 | ||
136 | end: | |
137 | return ret; | |
138 | } |