/*
* Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; only version 2
- * of the License.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2 only,
+ * as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#define _GNU_SOURCE
#include "../command.h"
+#include <common/sessiond-comm/sessiond-comm.h>
+
static char *opt_session_name;
+static int opt_destroy_all;
enum {
OPT_HELP = 1,
static struct poptOption long_options[] = {
/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
{"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0},
+ {"all", 'a', POPT_ARG_VAL, &opt_destroy_all, 1, 0, 0},
{"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL},
{0, 0, 0, 0, 0, 0, 0}
};
fprintf(ofp, "get it from the configuration directory (.lttng).\n");
fprintf(ofp, "\n");
fprintf(ofp, " -h, --help Show this help\n");
- fprintf(ofp, " --list-options Simple listing of options\n");
+ fprintf(ofp, " -a, --all Destroy all sessions\n");
+ fprintf(ofp, " --list-options Simple listing of options\n");
fprintf(ofp, "\n");
}
/*
- * Destroy a session removing the config directory and unregistering to the
- * session daemon.
+ * destroy_session
+ *
+ * Unregister the provided session to the session daemon. On success, removes
+ * the default configuration.
*/
-static int destroy_session()
+static int destroy_session(const char *session_name)
{
int ret;
- char *session_name, *path;
-
- if (opt_session_name == NULL) {
- session_name = get_session_name();
- if (session_name == NULL) {
- ret = CMD_ERROR;
- goto error;
- }
- } else {
- session_name = opt_session_name;
- }
ret = lttng_destroy_session(session_name);
if (ret < 0) {
- /* Don't set ret so lttng can interpret the sessiond error. */
- goto free_name;
- }
-
- path = config_get_default_path();
- if (path == NULL) {
- ret = CMD_FATAL;
- goto free_name;
- }
-
- if (opt_session_name == NULL) {
- config_destroy(path);
- MSG("Session %s destroyed at %s", session_name, path);
- } else {
- MSG("Session %s destroyed", session_name);
+ switch (-ret) {
+ case LTTCOMM_SESS_NOT_FOUND:
+ WARN("Session name %s not found", session_name);
+ break;
+ default:
+ break;
+ }
+ goto error;
}
+ MSG("Session %s destroyed", session_name);
+ config_destroy_default();
ret = CMD_SUCCESS;
+error:
+ return ret;
+}
-free_name:
- if (opt_session_name == NULL) {
- free(session_name);
+/*
+ * destroy_all_sessions
+ *
+ * Call destroy_sessions for each registered sessions
+ */
+static int destroy_all_sessions()
+{
+ int count, i, ret = CMD_SUCCESS;
+ struct lttng_session *sessions;
+
+ count = lttng_list_sessions(&sessions);
+ if (count == 0) {
+ MSG("No session found, nothing to do.");
+ }
+ for (i = 0; i < count; i++) {
+ ret = destroy_session(sessions[i].name);
+ if (ret < 0) {
+ goto error;
+ }
}
error:
return ret;
}
+/*
+ * get_default_session_name
+ *
+ * Returns the default sessions name, if any
+ */
+static int get_default_session_name(char **name)
+{
+ char *session_name = get_session_name();
+ if (session_name == NULL) {
+ return CMD_ERROR;
+ }
+ *name = session_name;
+ return CMD_SUCCESS;
+}
+
/*
* The 'destroy <options>' first level command
*/
int cmd_destroy(int argc, const char **argv)
{
- int opt, ret = CMD_SUCCESS;
+ int opt;
+ int ret = CMD_SUCCESS;
static poptContext pc;
+ char *session_name = NULL;
pc = poptGetContext(NULL, argc, argv, long_options, 0);
poptReadDefaultConfig(pc, 0);
switch (opt) {
case OPT_HELP:
usage(stdout);
- goto end;
+ break;
case OPT_LIST_OPTIONS:
list_cmd_options(stdout, long_options);
- goto end;
+ break;
default:
usage(stderr);
ret = CMD_UNDEFINED;
- goto end;
+ break;
}
+ goto end;
}
- opt_session_name = (char*) poptGetArg(pc);
+ /* Ignore session name in case all sessions are to be destroyed */
+ if (opt_destroy_all) {
+ ret = destroy_all_sessions();
+ goto end;
+ }
- ret = destroy_session();
+ opt_session_name = (char *) poptGetArg(pc);
+
+ if (opt_session_name == NULL) {
+ /* No session name specified, lookup default */
+ session_name = get_session_name();
+ if (session_name == NULL) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+ } else {
+ session_name = opt_session_name;
+ }
+
+ ret = destroy_session(session_name);
end:
+ if (opt_session_name == NULL) {
+ free(session_name);
+ }
+
poptFreeContext(pc);
return ret;
}
projects / lttng-tools.git / blobdiff