- fprintf(ofp, "usage: lttng create [NAME] [OPTIONS] \n");
- fprintf(ofp, "\n");
- fprintf(ofp, "Without a given NAME, the default is 'auto-<yyyymmdd>-<hhmmss>'\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, " -o, --output PATH Specify output path for traces\n");
- fprintf(ofp, "\n");
- fprintf(ofp, "Extended Options:\n");
- fprintf(ofp, "\n");
- fprintf(ofp, "Using these options, each API call can be controlled individually.\n");
- fprintf(ofp, "\n");
- fprintf(ofp, " -U, --set-url=URL Set URL destination of the trace data.\n");
- fprintf(ofp, " It is persistent for the session lifetime.\n");
- fprintf(ofp, " This will set both data and control URL.\n");
- fprintf(ofp, " You can change it with the enable-consumer cmd\n");
- fprintf(ofp, " -C, --ctrl-url=URL Set control path URL. (Must use -D also)\n");
- fprintf(ofp, " -D, --data-url=URL Set data path URL. (Must use -C also)\n");
- fprintf(ofp, " --no-consumer Don't activate a consumer for this session.\n");
- fprintf(ofp, " OBSELETE\n");
- fprintf(ofp, " --disable-consumer\n");
- fprintf(ofp, " Disable consumer for this session.\n");
- fprintf(ofp, " OBSELETE\n");
- fprintf(ofp, "\n");
- fprintf(ofp, "Please refer to the man page (lttng(1)) for more information on network\n");
- fprintf(ofp, "streaming mechanisms and explanation of the control and data port\n");
- fprintf(ofp, "You must have a running remote lttng-relayd for network streaming\n");
- fprintf(ofp, "\n");
- fprintf(ofp, "URL format is has followed:\n");
- fprintf(ofp, "\n");
- fprintf(ofp, " proto://[HOST|IP][:PORT1[:PORT2]][/TRACE_PATH]\n");
- fprintf(ofp, "\n");
- fprintf(ofp, " Supported protocols are (proto):\n");
- fprintf(ofp, " > file://...\n");
- fprintf(ofp, " Local filesystem full path.\n");
- fprintf(ofp, "\n");
- fprintf(ofp, " > net[6]://...\n");
- fprintf(ofp, " This will use the default network transport layer which is\n");
- fprintf(ofp, " TCP for both control (PORT1) and data port (PORT2).\n");
- fprintf(ofp, " The default ports are respectively 5342 and 5343.\n");
- fprintf(ofp, "\n");
- fprintf(ofp, " > tcp[6]://...\n");
- fprintf(ofp, " Can only be used with -C and -D together\n");
- fprintf(ofp, "\n");
- fprintf(ofp, "NOTE: IPv6 address MUST be enclosed in brackets '[]' (rfc2732)\n");
- fprintf(ofp, "\n");
- fprintf(ofp, "Examples:\n");
- fprintf(ofp, " # lttng create -U net://192.168.1.42\n");
- fprintf(ofp, " Uses TCP and default ports for the given destination.\n");
- fprintf(ofp, " # lttng create -U net6://[fe80::f66d:4ff:fe53:d220]\n");
- fprintf(ofp, " Uses TCP, default ports and IPv6.\n");
- fprintf(ofp, " # lttng create s1 -U net://myhost.com:3229\n");
- fprintf(ofp, " Set the consumer to the remote HOST on port 3229 for control.\n");
- fprintf(ofp, "\n");
+ int ret, i, count, found;
+ struct lttng_session *sessions;
+
+ /* session_name should not be null */
+ assert(session_name);
+ assert(writer);
+
+ count = lttng_list_sessions(&sessions);
+ if (count < 0) {
+ ret = count;
+ ERR("%s", lttng_strerror(ret));
+ goto error;
+ }
+
+ if (count == 0) {
+ ERR("Error session creation failed: session %s not found", session_name);
+ ret = -LTTNG_ERR_SESS_NOT_FOUND;
+ goto end;
+ }
+
+ found = 0;
+ for (i = 0; i < count; i++) {
+ if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) {
+ found = 1;
+ ret = mi_lttng_session(writer, &sessions[i], 0);
+ if (ret) {
+ goto error;
+ }
+ break;
+ }
+ }
+
+ if (!found) {
+ ret = -LTTNG_ERR_SESS_NOT_FOUND;
+ } else {
+ ret = CMD_SUCCESS;
+ }
+
+error:
+ free(sessions);
+end:
+ return ret;