* 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
- * as published by the Free Software Foundation; only version 2
- * of the License.
+ * 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
/* Variables */
static char *progname;
-
-int opt_quiet;
-int opt_verbose;
static int opt_no_sessiond;
static char *opt_sessiond_path;
static pid_t sessiond_pid;
static volatile int recv_child_signal;
+char *opt_relayd_path;
+
enum {
+ OPT_RELAYD_PATH,
OPT_SESSION_PATH,
OPT_DUMP_OPTIONS,
OPT_DUMP_COMMANDS,
/* Getopt options. No first level command. */
static struct option long_options[] = {
+ {"version", 0, NULL, 'V'},
{"help", 0, NULL, 'h'},
{"group", 1, NULL, 'g'},
{"verbose", 0, NULL, 'v'},
{"quiet", 0, NULL, 'q'},
+ {"mi", 1, NULL, 'm'},
{"no-sessiond", 0, NULL, 'n'},
{"sessiond-path", 1, NULL, OPT_SESSION_PATH},
+ {"relayd-path", 1, NULL, OPT_RELAYD_PATH},
{"list-options", 0, NULL, OPT_DUMP_OPTIONS},
{"list-commands", 0, NULL, OPT_DUMP_COMMANDS},
{NULL, 0, NULL, 0}
{ "version", cmd_version},
{ "calibrate", cmd_calibrate},
{ "view", cmd_view},
+ { "snapshot", cmd_snapshot},
+ { "save", cmd_save},
+ { "load", cmd_load},
+ { "enable-consumer", cmd_enable_consumer}, /* OBSOLETE */
+ { "disable-consumer", cmd_disable_consumer}, /* OBSOLETE */
{ NULL, NULL} /* Array closure */
};
static void usage(FILE *ofp)
{
- fprintf(ofp, "LTTng Trace Control " VERSION"\n\n");
- fprintf(ofp, "usage: lttng [OPTIONS] <COMMAND>\n");
+ fprintf(ofp, "LTTng Trace Control " VERSION " - " VERSION_NAME "%s\n\n",
+ GIT_VERSION[0] == '\0' ? "" : " - " GIT_VERSION);
+ fprintf(ofp, "usage: lttng [OPTIONS] <COMMAND> [<ARGS>]\n");
fprintf(ofp, "\n");
fprintf(ofp, "Options:\n");
+ fprintf(ofp, " -V, --version Show version\n");
fprintf(ofp, " -h, --help Show this help\n");
fprintf(ofp, " --list-options Simple listing of lttng options\n");
fprintf(ofp, " --list-commands Simple listing of lttng commands\n");
fprintf(ofp, " -v, --verbose Increase verbosity\n");
fprintf(ofp, " -q, --quiet Quiet mode\n");
+ fprintf(ofp, " -m, --mi TYPE Machine Interface mode.\n");
+ fprintf(ofp, " Type: xml\n");
fprintf(ofp, " -g, --group NAME Unix tracing group name. (default: tracing)\n");
fprintf(ofp, " -n, --no-sessiond Don't spawn a session daemon\n");
fprintf(ofp, " --sessiond-path PATH Session daemon full path\n");
+ fprintf(ofp, " --relayd-path PATH Relayd daemon full path\n");
fprintf(ofp, "\n");
fprintf(ofp, "Commands:\n");
- fprintf(ofp, " add-context Add context to event and/or channel\n");
- fprintf(ofp, " calibrate Quantify LTTng overhead\n");
- fprintf(ofp, " create Create tracing session\n");
- fprintf(ofp, " destroy Tear down tracing session\n");
- fprintf(ofp, " enable-channel Enable tracing channel\n");
- fprintf(ofp, " enable-event Enable tracing event\n");
- fprintf(ofp, " disable-channel Disable tracing channel\n");
- fprintf(ofp, " disable-event Disable tracing event\n");
- fprintf(ofp, " list List possible tracing options\n");
- fprintf(ofp, " set-session Set current session name\n");
- fprintf(ofp, " start Start tracing\n");
- fprintf(ofp, " stop Stop tracing\n");
- fprintf(ofp, " version Show version information\n");
- fprintf(ofp, " view Start trace viewer\n");
+ fprintf(ofp, " add-context Add context to event and/or channel\n");
+ fprintf(ofp, " calibrate Quantify LTTng overhead\n");
+ fprintf(ofp, " create Create tracing session\n");
+ fprintf(ofp, " destroy Tear down tracing session\n");
+ fprintf(ofp, " enable-channel Enable tracing channel\n");
+ fprintf(ofp, " enable-event Enable tracing event\n");
+ fprintf(ofp, " disable-channel Disable tracing channel\n");
+ fprintf(ofp, " disable-event Disable tracing event\n");
+ fprintf(ofp, " list List possible tracing options\n");
+ fprintf(ofp, " set-session Set current session name\n");
+ fprintf(ofp, " snapshot Snapshot buffers of current session name\n");
+ fprintf(ofp, " start Start tracing\n");
+ fprintf(ofp, " stop Stop tracing\n");
+ fprintf(ofp, " version Show version information\n");
+ fprintf(ofp, " view Start trace viewer\n");
+ fprintf(ofp, " save Save session configuration\n");
+ fprintf(ofp, " load Load session configuration\n");
fprintf(ofp, "\n");
fprintf(ofp, "Each command also has its own -h, --help option.\n");
fprintf(ofp, "\n");
fprintf(ofp, "See http://lttng.org for updates, bug reports and news.\n");
}
+static void version(FILE *ofp)
+{
+ fprintf(ofp, "%s (LTTng Trace Control) " VERSION" - " VERSION_NAME "%s\n",
+ progname,
+ GIT_VERSION[0] == '\0' ? "" : " - " GIT_VERSION);
+}
+
+/*
+ * Find the MI output type enum from a string. This function is for the support
+ * of machine interface output.
+ */
+static int mi_output_type(const char *output_type)
+{
+ int ret = 0;
+
+ if (!strncasecmp("xml", output_type, 3)) {
+ ret = LTTNG_MI_XML;
+ } else {
+ /* Invalid output format */
+ ERR("MI output format not supported");
+ ret = -LTTNG_ERR_MI_OUTPUT_TYPE;
+ }
+
+ return ret;
+}
+
/*
* list_options
*
}
}
-/*
- * list_commands
- *
- * List commands line by line. This is mostly for bash auto completion and to
- * avoid difficult parsing.
- */
-static void list_commands(FILE *ofp)
-{
- int i = 0;
- struct cmd_struct *cmd = NULL;
-
- cmd = &commands[i];
- while (cmd->name != NULL) {
- fprintf(ofp, "%s\n", cmd->name);
- i++;
- cmd = &commands[i];
- }
-}
-
/*
* clean_exit
*/
}
/* Command not found */
- ret = -1;
+ ret = CMD_UNDEFINED;
end:
return ret;
static int check_sessiond(void)
{
int ret;
- char *pathname = NULL, *alloc_pathname = NULL;
+ char *pathname = NULL;
ret = lttng_session_daemon_alive();
if (ret == 0) { /* not alive */
/* Try command line option path */
- if (opt_sessiond_path != NULL) {
- ret = access(opt_sessiond_path, F_OK | X_OK);
- if (ret < 0) {
- ERR("No such file or access denied: %s", opt_sessiond_path);
- goto end;
- }
- pathname = opt_sessiond_path;
- } else {
- /* Try LTTNG_SESSIOND_PATH env variable */
+ pathname = opt_sessiond_path;
+
+ /* Try LTTNG_SESSIOND_PATH env variable */
+ if (pathname == NULL) {
pathname = getenv(DEFAULT_SESSIOND_PATH_ENV);
}
- /* Let's rock and roll */
+ /* Try with configured path */
if (pathname == NULL) {
- ret = asprintf(&alloc_pathname, INSTALL_BIN_PATH "/lttng-sessiond");
- if (ret < 0) {
- perror("asprintf spawn sessiond");
- goto end;
+ if (CONFIG_SESSIOND_BIN[0] != '\0') {
+ pathname = CONFIG_SESSIOND_BIN;
}
- pathname = alloc_pathname;
+ }
+
+ /* Let's rock and roll while trying the default path */
+ if (pathname == NULL) {
+ pathname = INSTALL_BIN_PATH "/lttng-sessiond";
+ }
+
+ DBG("Session daemon at: %s", pathname);
+
+ /* Check existence and permissions */
+ ret = access(pathname, F_OK | X_OK);
+ if (ret < 0) {
+ ERR("No such file or access denied: %s", pathname);
+ goto end;
}
ret = spawn_sessiond(pathname);
- free(alloc_pathname);
if (ret < 0) {
ERR("Problem occurred when starting %s", pathname);
- goto end;
}
}
-
end:
return ret;
}
clean_exit(EXIT_FAILURE);
}
- while ((opt = getopt_long(argc, argv, "+hnvqg:", long_options, NULL)) != -1) {
+ while ((opt = getopt_long(argc, argv, "+Vhnvqg:m:", long_options, NULL)) != -1) {
switch (opt) {
+ case 'V':
+ version(stdout);
+ ret = 0;
+ goto end;
case 'h':
usage(stdout);
ret = 0;
goto end;
case 'v':
- opt_verbose += 1;
+ /* There is only 3 possible level of verbosity. (-vvv) */
+ if (lttng_opt_verbose < 3) {
+ lttng_opt_verbose += 1;
+ }
break;
case 'q':
- opt_quiet = 1;
+ lttng_opt_quiet = 1;
+ break;
+ case 'm':
+ lttng_opt_mi = mi_output_type(optarg);
+ if (lttng_opt_mi < 0) {
+ ret = lttng_opt_mi;
+ goto error;
+ }
break;
case 'g':
lttng_set_tracing_group(optarg);
case OPT_SESSION_PATH:
opt_sessiond_path = strdup(optarg);
break;
+ case OPT_RELAYD_PATH:
+ opt_relayd_path = strdup(optarg);
+ break;
case OPT_DUMP_OPTIONS:
list_options(stdout);
ret = 0;
goto end;
case OPT_DUMP_COMMANDS:
- list_commands(stdout);
+ list_commands(commands, stdout);
ret = 0;
goto end;
default:
}
/* If both options are specified, quiet wins */
- if (opt_verbose && opt_quiet) {
- opt_verbose = 0;
+ if (lttng_opt_verbose && lttng_opt_quiet) {
+ lttng_opt_verbose = 0;
}
/* Spawn session daemon if needed */
case CMD_FATAL:
ERR("Fatal error");
break;
+ case CMD_UNSUPPORTED:
+ ERR("Unsupported command");
+ break;
case -1:
usage(stderr);
ret = 1;
case 0:
break;
default:
- ERR("%s", lttng_strerror(ret));
+ if (ret < 0) {
+ ret = -ret;
+ }
break;
}
int main(int argc, char *argv[])
{
int ret;
+ char *user;
progname = argv[0] ? argv[0] : "lttng";
/* For Mathieu Desnoyers a.k.a. Dr. Tracing */
- if (strncmp(progname, "drtrace", 7) == 0 ||
- strncmp("compudj", getenv("USER"), 7) == 0) {
+ user = getenv("USER");
+ if (user != NULL && ((strncmp(progname, "drtrace", 7) == 0 ||
+ strncmp("compudj", user, 7) == 0))) {
MSG("%c[%d;%dmWelcome back Dr Tracing!%c[%dm\n", 27,1,33,27,0);
}
+ /* Thanks Mathieu */
ret = set_signal_handler();
if (ret < 0) {
projects / lttng-tools.git / blobdiff