Docs: clarify comment in parse_pid_string()

[lttng-tools.git] / src / bin / lttng-sessiond / main.c

diff --git a/src/bin/lttng-sessiond/main.c b/src/bin/lttng-sessiond/main.c
index dbd99cc637659e242c1012cd6717f20b4e0a36d4..6081fb2b026818b43c60302d1e9d60a316336300 100644 (file)
--- a/src/bin/lttng-sessiond/main.c
+++ b/src/bin/lttng-sessiond/main.c
@@ -3039,6 +3039,7 @@ static int process_client_msg(struct command_ctx *cmd_ctx, int sock,
        case LTTNG_SNAPSHOT_RECORD:
        case LTTNG_SAVE_SESSION:
        case LTTNG_SET_SESSION_SHM_PATH:
+       case LTTNG_METADATA_REGENERATE:
                need_domain = 0;
                break;
        default:
@@ -3316,6 +3317,8 @@ skip_domain:
        if (cmd_ctx->lsm->cmd_type == LTTNG_START_TRACE ||
                        cmd_ctx->lsm->cmd_type == LTTNG_STOP_TRACE) {
                switch (cmd_ctx->lsm->domain.type) {
+               case LTTNG_DOMAIN_NONE:
+                       break;
                case LTTNG_DOMAIN_JUL:
                case LTTNG_DOMAIN_LOG4J:
                case LTTNG_DOMAIN_PYTHON:
@@ -3331,6 +3334,9 @@ skip_domain:
                                goto error;
                        }
                        break;
+               default:
+                       ret = LTTNG_ERR_UNKNOWN_DOMAIN;
+                       goto error;
                }
        }
 
@@ -4143,6 +4149,11 @@ error_add_context:
                                cmd_ctx->lsm->u.set_shm_path.shm_path);
                break;
        }
+       case LTTNG_METADATA_REGENERATE:
+       {
+               ret = cmd_metadata_regenerate(cmd_ctx->session);
+               break;
+       }
        default:
                ret = LTTNG_ERR_UND;
                break;
@@ -4645,43 +4656,6 @@ error_create_poll:
        return NULL;
 }
 
-
-/*
- * usage function on stderr
- */
-static void usage(void)
-{
-       fprintf(stderr, "Usage: %s OPTIONS\n\nOptions:\n", progname);
-       fprintf(stderr, "  -h, --help                         Display this usage.\n");
-       fprintf(stderr, "  -c, --client-sock PATH             Specify path for the client unix socket\n");
-       fprintf(stderr, "  -a, --apps-sock PATH               Specify path for apps unix socket\n");
-       fprintf(stderr, "      --kconsumerd-err-sock PATH     Specify path for the kernel consumer error socket\n");
-       fprintf(stderr, "      --kconsumerd-cmd-sock PATH     Specify path for the kernel consumer command socket\n");
-       fprintf(stderr, "      --ustconsumerd32-err-sock PATH Specify path for the 32-bit UST consumer error socket\n");
-       fprintf(stderr, "      --ustconsumerd64-err-sock PATH Specify path for the 64-bit UST consumer error socket\n");
-       fprintf(stderr, "      --ustconsumerd32-cmd-sock PATH Specify path for the 32-bit UST consumer command socket\n");
-       fprintf(stderr, "      --ustconsumerd64-cmd-sock PATH Specify path for the 64-bit UST consumer command socket\n");
-       fprintf(stderr, "      --consumerd32-path PATH     Specify path for the 32-bit UST consumer daemon binary\n");
-       fprintf(stderr, "      --consumerd32-libdir PATH   Specify path for the 32-bit UST consumer daemon libraries\n");
-       fprintf(stderr, "      --consumerd64-path PATH     Specify path for the 64-bit UST consumer daemon binary\n");
-       fprintf(stderr, "      --consumerd64-libdir PATH   Specify path for the 64-bit UST consumer daemon libraries\n");
-       fprintf(stderr, "  -d, --daemonize                    Start as a daemon.\n");
-       fprintf(stderr, "  -b, --background                   Start as a daemon, keeping console open.\n");
-       fprintf(stderr, "  -g, --group NAME                   Specify the tracing group name. (default: tracing)\n");
-       fprintf(stderr, "  -V, --version                      Show version number.\n");
-       fprintf(stderr, "  -S, --sig-parent                   Send SIGUSR1 to parent pid to notify readiness.\n");
-       fprintf(stderr, "  -q, --quiet                        No output at all.\n");
-       fprintf(stderr, "  -v, --verbose                      Verbose mode. Activate DBG() macro.\n");
-       fprintf(stderr, "  -p, --pidfile FILE                 Write a pid to FILE name overriding the default value.\n");
-       fprintf(stderr, "      --verbose-consumer             Verbose mode for consumer. Activate DBG() macro.\n");
-       fprintf(stderr, "      --no-kernel                    Disable kernel tracer\n");
-       fprintf(stderr, "      --agent-tcp-port               Agent registration TCP port\n");
-       fprintf(stderr, "  -f  --config PATH                  Load daemon configuration file\n");
-       fprintf(stderr, "  -l  --load PATH                    Load session configuration\n");
-       fprintf(stderr, "      --kmod-probes                  Specify kernel module probes to load\n");
-       fprintf(stderr, "      --extra-kmod-probes            Specify extra kernel module probes to load\n");
-}
-
 static int string_match(const char *str1, const char *str2)
 {
        return (str1 && str2) && !strcmp(str1, str2);
@@ -4747,8 +4721,12 @@ static int set_option(int opt, const char *arg, const char *optname)
                        tracing_group_name_override = 1;
                }
        } else if (string_match(optname, "help") || opt == 'h') {
-               usage();
-               exit(EXIT_SUCCESS);
+               ret = utils_show_man_page(8, "lttng-sessiond");
+               if (ret) {
+                       ERR("Cannot view man page lttng-sessiond(8)");
+                       perror("exec");
+               }
+               exit(ret ? EXIT_FAILURE : EXIT_SUCCESS);
        } else if (string_match(optname, "version") || opt == 'V') {
                fprintf(stdout, "%s\n", VERSION);
                exit(EXIT_SUCCESS);
@@ -5465,7 +5443,10 @@ static int write_pidfile(void)
        assert(rundir);
 
        if (opt_pidfile) {
-               strncpy(pidfile_path, opt_pidfile, sizeof(pidfile_path));
+               if (lttng_strncpy(pidfile_path, opt_pidfile, sizeof(pidfile_path))) {
+                       ret = -1;
+                       goto error;
+               }
        } else {
                /* Build pidfile path from rundir and opt_pidfile. */
                ret = snprintf(pidfile_path, sizeof(pidfile_path), "%s/"