/* Copyright (C) 2009 Pierre-Marc Fournier
+ * Copyright (C) 2011 Ericsson AB, Nils Carlson <nils.carlson@ericsson.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
#include <stdlib.h>
#include <fcntl.h>
-#include "ustcomm.h"
-#include "ustcmd.h"
+#include "ust/ustctl.h"
#include "usterr.h"
+#include "cli.h"
+#include "scanning_functions.h"
-enum command {
- CREATE_TRACE,
- START_TRACE,
- STOP_TRACE,
- START,
- DESTROY,
- LIST_MARKERS,
- ENABLE_MARKER,
- DISABLE_MARKER,
- GET_ONLINE_PIDS,
- UNKNOWN
-};
-
-struct ust_opts {
- enum command cmd;
- pid_t *pids;
- char *regex;
-};
-
-char *progname = NULL;
-
-void usage(void)
+void usage(const char *process_name)
{
- fprintf(stderr, "usage: %s COMMAND PIDs...\n", progname);
- fprintf(stderr, "\nControl the tracing of a process that supports LTTng Userspace Tracing.\n\
-\n\
-Commands:\n\
- --create-trace\t\t\tCreate trace\n\
- --start-trace\t\t\tStart tracing\n\
- --stop-trace\t\t\tStop tracing\n\
- --destroy-trace\t\t\tDestroy the trace\n\
- --enable-marker \"CHANNEL/MARKER\"\tEnable a marker\n\
- --disable-marker \"CHANNEL/MARKER\"\tDisable a marker\n\
- --list-markers\t\t\tList the markers of the process, their\n\t\t\t\t\t state and format string\n\
-\
-");
+ fprintf(stderr, "Usage: %s COMMAND [ARGS]...\n", process_name);
+ fprintf(stderr,
+ "Control tracing within a process that supports UST,\n"
+ " the Userspace Tracing libary\n"
+ "Options:\n"
+ " -h[<cmd>], --help[=<cmd>] "
+ "help, for a command if provided\n"
+ " -l, --list "
+ "short list of commands\n"
+ " -e, --extended-list "
+ "extented list of commands with help\n"
+ "Commands:\n");
+ list_cli_cmds(CLI_DESCRIPTIVE_LIST);
}
-int parse_opts_long(int argc, char **argv, struct ust_opts *opts)
+struct option options[] =
{
- int c;
-
- opts->pids = NULL;
- opts->regex = NULL;
-
- while (1) {
- int option_index = 0;
- static struct option long_options[] = {
- {"create-trace", 0, 0, 1012},
- {"start-trace", 0, 0, 1000},
- {"stop-trace", 0, 0, 1001},
- {"destroy-trace", 0, 0, 1002},
- {"list-markers", 0, 0, 1004},
- {"print-markers", 0, 0, 1005},
- {"pid", 1, 0, 1006},
- {"enable-marker", 1, 0, 1007},
- {"disable-marker", 1, 0, 1008},
- {"start", 0, 0, 1009},
- {"help", 0, 0, 'h'},
- {"version", 0, 0, 1010},
- {"online-pids", 0, 0, 1011},
- {0, 0, 0, 0}
- };
+ {"help", 2, NULL, 'h'},
+ {"list", 0, NULL, 'l'},
+ {"extended-list", 0, NULL, 'e'},
+ {NULL, 0, NULL, 0},
+};
- c = getopt_long(argc, argv, "h", long_options, &option_index);
- if (c == -1)
- break;
+int main(int argc, char *argv[])
+{
+ struct cli_cmd *cli_cmd;
+ int opt;
- switch (c) {
- case 0:
- printf("option %s", long_options[option_index].name);
- if (optarg)
- printf(" with arg %s", optarg);
- printf("\n");
- break;
+ if(argc <= 1) {
+ fprintf(stderr, "No operation specified.\n");
+ usage(argv[0]);
+ exit(EXIT_FAILURE);
+ }
- case 1000:
- opts->cmd = START_TRACE;
- break;
- case 1001:
- opts->cmd = STOP_TRACE;
- break;
- case 1009:
- opts->cmd = START;
- break;
- case 1002:
- opts->cmd = DESTROY;
- break;
- case 1004:
- opts->cmd = LIST_MARKERS;
- break;
- case 1007:
- opts->cmd = ENABLE_MARKER;
- opts->regex = strdup(optarg);
- break;
- case 1008:
- opts->cmd = DISABLE_MARKER;
- opts->regex = strdup(optarg);
- break;
- case 1011:
- opts->cmd = GET_ONLINE_PIDS;
- break;
+ while ((opt = getopt_long(argc, argv, "+h::le",
+ options, NULL)) != -1) {
+ switch (opt) {
case 'h':
- usage();
- exit(0);
- case 1010:
- printf("Version 0.1\n");
+ if (!optarg) {
+ usage(argv[0]);
+ } else {
+ if (cli_print_help(optarg)) {
+ fprintf(stderr, "No such command %s\n",
+ optarg);
+ }
+ }
+ exit(EXIT_FAILURE);
break;
- case 1012:
- opts->cmd = CREATE_TRACE;
+ case 'l':
+ list_cli_cmds(CLI_SIMPLE_LIST);
+ exit(EXIT_FAILURE);
break;
+ case 'e':
+ list_cli_cmds(CLI_EXTENDED_LIST);
+ exit(EXIT_FAILURE);
default:
- /* unknown option or other error; error is
- printed by getopt, just return */
- opts->cmd = UNKNOWN;
- return 1;
+ fprintf(stderr, "Unknown option\n");
+ break;
}
}
- if (argc - optind > 0 && opts->cmd != GET_ONLINE_PIDS) {
- int i;
- int pididx=0;
- opts->pids = malloc((argc-optind+1) * sizeof(pid_t));
-
- for(i=optind; i<argc; i++) {
- /* don't take any chances, use a long long */
- long long tmp;
- char *endptr;
- tmp = strtoull(argv[i], &endptr, 10);
- if(*endptr != '\0') {
- ERR("The pid \"%s\" is invalid.", argv[i]);
- return 1;
- }
- opts->pids[pididx++] = (pid_t) tmp;
- }
- opts->pids[pididx] = -1;
+ cli_cmd = find_cli_cmd(argv[optind]);
+ if (!cli_cmd) {
+ fprintf(stderr, "No such command %s\n",
+ argv[optind]);
+ exit(EXIT_FAILURE);
}
+ cli_dispatch_cmd(cli_cmd, argc - optind, &argv[optind]);
+
return 0;
}
-int main(int argc, char *argv[])
+static int list_trace_events(int argc, char *argv[])
{
- pid_t *pidit;
- int result;
- struct ust_opts opts;
-
- progname = argv[0];
-
- if(argc <= 1) {
- fprintf(stderr, "No operation specified.\n");
- usage();
- exit(EXIT_FAILURE);
- }
+ struct trace_event_status *tes = NULL;
+ int i;
+ pid_t pid;
- result = parse_opts_long(argc, argv, &opts);
- if(result) {
- fprintf(stderr, "\n");
- usage();
- exit(EXIT_FAILURE);
- }
+ pid = parse_pid(argv[1]);
- if(opts.pids == NULL && opts.cmd != GET_ONLINE_PIDS) {
- fprintf(stderr, "No pid specified.\n");
- usage();
- exit(EXIT_FAILURE);
- }
- if(opts.cmd == UNKNOWN) {
- fprintf(stderr, "No command specified.\n");
- usage();
- exit(EXIT_FAILURE);
+ if (ustctl_get_tes(&tes, pid)) {
+ ERR("error while trying to list "
+ "trace_events for PID %u\n",
+ pid);
+ return -1;
}
- if (opts.cmd == GET_ONLINE_PIDS) {
- pid_t *pp = ustcmd_get_online_pids();
- unsigned int i = 0;
-
- if (pp) {
- while (pp[i] != 0) {
- printf("%u\n", (unsigned int) pp[i]);
- ++i;
- }
- free(pp);
- }
-
- exit(EXIT_SUCCESS);
+ i = 0;
+ for (i = 0; tes[i].name; i++) {
+ printf("{PID: %u, trace_event: %s}\n",
+ pid,
+ tes[i].name);
}
+ ustctl_free_tes(tes);
- pidit = opts.pids;
- struct marker_status *cmsf = NULL;
-
- while(*pidit != -1) {
- switch (opts.cmd) {
- case CREATE_TRACE:
- result = ustcmd_create_trace(*pidit);
- if (result) {
- ERR("error while trying to create trace with PID %u\n", (unsigned int) *pidit);
- break;
- }
- break;
-
- case START_TRACE:
- result = ustcmd_start_trace(*pidit);
- if (result) {
- ERR("error while trying to for trace with PID %u\n", (unsigned int) *pidit);
- break;
- }
- //printf("sucessfully started trace for PID %u\n", (unsigned int) *pidit);
- break;
-
- case STOP_TRACE:
- result = ustcmd_stop_trace(*pidit);
- if (result) {
- ERR("error while trying to stop trace for PID %u\n", (unsigned int) *pidit);
- break;
- }
- //printf("sucessfully stopped trace for PID %u\n", (unsigned int) *pidit);
- break;
+ return 0;
+}
- case START:
- result = ustcmd_setup_and_start(*pidit);
- if (result) {
- ERR("error while trying to setup/start trace for PID %u\n", (unsigned int) *pidit);
- break;
- }
- //printf("sucessfully setup/started trace for PID %u\n", (unsigned int) *pidit);
- break;
+static int set_sock_path(int argc, char *argv[])
+{
+ pid_t pid;
- case DESTROY:
- result = ustcmd_destroy_trace(*pidit);
- if (result) {
- ERR("error while trying to destroy trace with PID %u\n", (unsigned int) *pidit);
- break;
- }
- //printf("sucessfully destroyed trace for PID %u\n", (unsigned int) *pidit);
- break;
+ pid = parse_pid(argv[1]);
- case LIST_MARKERS:
- cmsf = NULL;
- if (ustcmd_get_cmsf(&cmsf, *pidit)) {
- fprintf(stderr,
- "error while trying to list markers for"
- " PID %u\n", (unsigned int) *pidit);
- break;
- }
- unsigned int i = 0;
- while (cmsf[i].channel != NULL) {
- printf("{PID: %u, channel/marker: %s/%s, "
- "state: %u, fmt: %s}\n",
- (unsigned int) *pidit,
- cmsf[i].channel,
- cmsf[i].marker,
- cmsf[i].state,
- cmsf[i].fs);
- ++i;
- }
- ustcmd_free_cmsf(cmsf);
- break;
+ if (ustctl_set_sock_path(argv[2], pid)) {
+ ERR("error while trying to set sock path for PID %u\n", pid);
+ return -1;
+ }
- case ENABLE_MARKER:
- if(opts.regex)
- ustcmd_set_marker_state(opts.regex, 1, *pidit);
- break;
- case DISABLE_MARKER:
- if(opts.regex)
- ustcmd_set_marker_state(opts.regex, 0, *pidit);
- break;
+ return 0;
+}
- default:
- ERR("unknown command\n");
- break;
- }
+static int get_sock_path(int argc, char *argv[])
+{
+ pid_t pid;
+ char *sock_path;
- pidit++;
- }
+ pid = parse_pid(argv[1]);
- if (opts.pids != NULL) {
- free(opts.pids);
- }
- if (opts.regex != NULL) {
- free(opts.regex);
+ if (ustctl_get_sock_path(&sock_path, pid)) {
+ ERR("error while trying to get sock path for PID %u\n", pid);
+ return -1;
}
+ printf("The socket path is %s\n", sock_path);
+ free(sock_path);
return 0;
}
+struct cli_cmd __cli_cmds general_cmds[] = {
+ {
+ .name = "list-trace-events",
+ .description = "List trace-events for a given pid",
+ .help_text = "list-trace-events <pid>\n"
+ "List the trace-events in a process\n",
+ .function = list_trace_events,
+ .desired_args = 1,
+ .desired_args_op = CLI_EQ,
+ },
+ {
+ .name = "set-sock-path",
+ .description = "Set the path to the consumer daemon socket",
+ .help_text = "set-sock-path <pid> <sock-path>\n"
+ "Set the path to the consumer daemon socket\n",
+ .function = set_sock_path,
+ .desired_args = 2,
+ .desired_args_op = CLI_EQ,
+ },
+ {
+ .name = "get-sock-path",
+ .description = "Get the path to the consumer daemon socket",
+ .help_text = "get-sock-path <pid>\n"
+ "Get the path to the consumer daemon socket\n",
+ .function = get_sock_path,
+ .desired_args = 1,
+ .desired_args_op = CLI_EQ,
+ },
+};