2 * Copyright (C) 2015 - Julien Desfossez <jdesfossez@efficios.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License, version 2 only,
6 * as published by the Free Software Foundation.
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 along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
27 #include <common/mi-lttng.h>
29 #include "../command.h"
31 static char *opt_session_name
;
32 static char *session_name
= NULL
;
34 static int regenerate_metadata(int argc
, const char **argv
);
35 static int regenerate_statedump(int argc
, const char **argv
);
43 static struct mi_writer
*writer
;
45 static struct poptOption long_options
[] = {
46 /* { longName, shortName, argInfo, argPtr, value, descrip, argDesc, } */
47 { "help", 'h', POPT_ARG_NONE
, 0, OPT_HELP
, 0, 0, },
48 { "session", 's', POPT_ARG_STRING
, &opt_session_name
, 0, 0, 0},
49 { "list-options", 0, POPT_ARG_NONE
, NULL
, OPT_LIST_OPTIONS
, 0, 0, },
50 { "list-commands", 0, POPT_ARG_NONE
, NULL
, OPT_LIST_COMMANDS
},
51 { 0, 0, 0, 0, 0, 0, 0, },
54 static struct cmd_struct actions
[] = {
55 { "metadata", regenerate_metadata
},
56 { "statedump", regenerate_statedump
},
57 { NULL
, NULL
} /* Array closure */
61 * Count and return the number of arguments in argv.
63 static int count_arguments(const char **argv
)
69 while (argv
[i
] != NULL
) {
76 static int regenerate_metadata(int argc
, const char **argv
)
84 ret
= lttng_regenerate_metadata(session_name
);
86 MSG("Metadata successfully regenerated for session %s", session_name
);
88 ERR("%s", lttng_strerror(ret
));
95 static int regenerate_statedump(int argc
, const char **argv
)
100 ret
= -LTTNG_ERR_INVALID
;
103 ret
= lttng_regenerate_statedump(session_name
);
105 MSG("State dump successfully regenerated for session %s", session_name
);
112 static int handle_command(const char **argv
)
114 struct cmd_struct
*cmd
;
115 int ret
= CMD_SUCCESS
, i
= 0, argc
, command_ret
= CMD_SUCCESS
;
118 ERR("No object specified for regenerate command.");
119 command_ret
= CMD_ERROR
;
123 argc
= count_arguments(argv
);
126 while (cmd
->func
!= NULL
) {
128 if (strcmp(argv
[0], cmd
->name
) == 0) {
131 ret
= mi_lttng_writer_open_element(writer
,
132 mi_lttng_element_command_regenerate_action
);
138 /* Name of the action */
139 ret
= mi_lttng_writer_write_element_string(writer
,
140 config_element_name
, argv
[0]);
146 command_ret
= cmd
->func(argc
, argv
);
148 /* Close output and action element */
149 ret
= mi_lttng_writer_close_element(writer
);
164 /* Overwrite ret if an error occurred in cmd->func() */
165 ret
= command_ret
? command_ret
: ret
;
170 * regenerate command handling.
172 int cmd_regenerate(int argc
, const char **argv
)
174 int opt
, ret
= CMD_SUCCESS
, command_ret
= CMD_SUCCESS
, success
= 1;
175 static poptContext pc
;
183 pc
= poptGetContext(NULL
, argc
, argv
, long_options
, 0);
184 poptReadDefaultConfig(pc
, 0);
187 writer
= mi_lttng_writer_create(fileno(stdout
), lttng_opt_mi
);
189 ret
= -LTTNG_ERR_NOMEM
;
192 /* Open command element */
193 ret
= mi_lttng_writer_command_open(writer
,
194 mi_lttng_element_command_regenerate
);
200 /* Open output element */
201 ret
= mi_lttng_writer_open_element(writer
,
202 mi_lttng_element_command_output
);
209 while ((opt
= poptGetNextOpt(pc
)) != -1) {
214 case OPT_LIST_OPTIONS
:
215 list_cmd_options(stdout
, long_options
);
217 case OPT_LIST_COMMANDS
:
218 list_commands(actions
, stdout
);
227 if (!opt_session_name
) {
228 session_name
= get_session_name();
229 if (session_name
== NULL
) {
234 session_name
= opt_session_name
;
237 command_ret
= handle_command(poptGetArgs(pc
));
243 /* Close output element */
244 ret
= mi_lttng_writer_close_element(writer
);
251 ret
= mi_lttng_writer_write_element_bool(writer
,
252 mi_lttng_element_command_success
, success
);
258 /* Command element close */
259 ret
= mi_lttng_writer_command_close(writer
);
268 if (writer
&& mi_lttng_writer_destroy(writer
)) {
269 /* Preserve original error code */
270 ret
= ret
? ret
: -LTTNG_ERR_MI_IO_FAIL
;
273 if (!opt_session_name
) {
277 /* Overwrite ret if an error occurred during handle_command() */
278 ret
= command_ret
? command_ret
: ret
;