X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=lttng%2Fcommands%2Fset_session.c;fp=lttng%2Fcommands%2Fset_session.c;h=f89545fd46e258831b67cec91643f92837381265;hp=0000000000000000000000000000000000000000;hb=3087ef18ecb79a3fcef9c8bb8a3e9dc1ea228ff0;hpb=5440dc4282b3186641a8886dc05f6cf5641b5191 diff --git a/lttng/commands/set_session.c b/lttng/commands/set_session.c new file mode 100644 index 000000000..f89545fd4 --- /dev/null +++ b/lttng/commands/set_session.c @@ -0,0 +1,133 @@ +/* + * Copyright (C) 2011 - David Goulet + * + * 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; either version 2 + * of the License, or (at your option) any later version. + * + * 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. + */ + +#define _GNU_SOURCE +#include +#include +#include +#include +#include +#include +#include + +#include "cmd.h" +#include "conf.h" +#include "utils.h" + +static char *opt_session_name; + +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}, + {0, 0, 0, 0, 0, 0, 0} +}; + +/* + * usage + */ +static void usage(FILE *ofp) +{ + fprintf(ofp, "usage: lttng set-session NAME\n"); + fprintf(ofp, "\n"); + fprintf(ofp, "Options:\n"); + fprintf(ofp, " -h, --help Show this help\n"); + fprintf(ofp, "\n"); +} + +/* + * set_session + */ +static int set_session(void) +{ + int ret = CMD_SUCCESS; + char *path, *alloc_path; + + alloc_path = config_get_default_path(); + if (alloc_path == NULL) { + ERR("Unable to find config directory"); + ret = CMD_ERROR; + goto error; + } + + path = config_generate_dir_path(alloc_path); + if (path == NULL) { + ret = CMD_FATAL; + goto error; + } + + ret = config_init(path); + if (ret < 0) { + ERR("Init config directory and file failed"); + ret = CMD_ERROR; + goto error; + } + + ret = config_add_session_name(path, opt_session_name); + if (ret < 0) { + ERR("Unable to add session name to config"); + ret = CMD_ERROR; + goto error; + } + + MSG("Session set to %s", opt_session_name); + ret = CMD_SUCCESS; + +error: + return ret; +} + +/* + * cmd_set_session + */ +int cmd_set_session(int argc, const char **argv) +{ + int opt, ret = CMD_SUCCESS; + static poptContext pc; + + pc = poptGetContext(NULL, argc, argv, long_options, 0); + poptReadDefaultConfig(pc, 0); + + while ((opt = poptGetNextOpt(pc)) != -1) { + switch (opt) { + case OPT_HELP: + usage(stderr); + ret = CMD_SUCCESS; + goto end; + default: + usage(stderr); + ret = CMD_UNDEFINED; + goto end; + } + } + + opt_session_name = (char *) poptGetArg(pc); + if (opt_session_name == NULL) { + ERR("Missing session name"); + usage(stderr); + goto end; + } + + ret = set_session(); + +end: + return ret; +}