/*
* Copyright (C) 2011 - David Goulet <dgoulet@efficios.com>
*
- * 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.
+ * 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
fprintf(ofp, "Where SESSION_NAME is an optional session name. If not specified, lttng will\n");
fprintf(ofp, "get it from the configuration file (.lttngrc).\n");
fprintf(ofp, "\n");
+ fprintf(ofp, "Options:\n");
fprintf(ofp, " -h, --help Show this help\n");
fprintf(ofp, " --list-options Simple listing of options\n");
fprintf(ofp, " -t, --trace-path PATH Trace directory path for the viewer\n");
ret = execvp(viewer_bin, argv);
if (ret) {
- PERROR("exec: %s", viewer_bin);
+ if (errno == ENOENT) {
+ ERR("%s not found on the system", viewer_bin);
+ } else {
+ PERROR("exec: %s", viewer_bin);
+ }
free(argv);
ret = CMD_FATAL;
goto error;
}
trace_path = sessions[i].path;
+
+ if (sessions[i].enabled) {
+ WARN("Session %s is running. Please stop it before reading it.",
+ session_name);
+ ret = CMD_ERROR;
+ goto free_sessions;
+ }
} else {
trace_path = opt_trace_path;
}
goto free_sessions;
}
- ret = CMD_SUCCESS;
-
free_sessions:
if (sessions) {
free(sessions);