Add -p, --pid option to lttng command line

[lttng-tools.git] / lttng / options.c

diff --git a/lttng/options.c b/lttng/options.c
index 3025117e4c36b9f67bd8a168260d94304b34d226..b4630c3d79d3b01c0d90ff420682e2079f6f6a54 100644 (file)
--- a/lttng/options.c
+++ b/lttng/options.c
@@ -34,9 +34,10 @@ int opt_list_apps = 0;
 int opt_no_sessiond = 0;
 int opt_list_session = 0;
 int opt_list_traces = 0;
-pid_t opt_create_trace = 0;
-pid_t opt_start_trace = 0;
-pid_t opt_stop_trace = 0;
+int opt_create_trace = 0;
+int opt_start_trace = 0;
+int opt_stop_trace = 0;
+pid_t opt_trace_pid = 0;
 
 enum {
        OPT_HELP = 42,
@@ -45,7 +46,7 @@ enum {
 static struct poptOption long_options[] = {
        /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
        {"create-session",  'c',        POPT_ARG_STRING,        &opt_create_session, 0, 0, 0},
-       {"create-trace",        'C',    POPT_ARG_INT,           &opt_create_trace, 0, 0, 0},
+       {"create-trace",        'C',    POPT_ARG_VAL,           &opt_create_trace, 1, 0, 0},
        {"destroy-session", 'd',        POPT_ARG_STRING,        &opt_destroy_session, 0, 0, 0},
        {"group",                       0,              POPT_ARG_STRING,        &opt_tracing_group, 0, 0},
        {"help",                        'h',    POPT_ARG_NONE,          0, OPT_HELP, 0, 0},
@@ -55,11 +56,12 @@ static struct poptOption long_options[] = {
        {"list-traces",         't',    POPT_ARG_VAL,           &opt_list_traces, 1, 0, 0},
        {"no-kernel",           0,              POPT_ARG_VAL,           &opt_trace_kernel, 0, 0, 0},
        {"no-sessiond",         0,              POPT_ARG_VAL,           &opt_no_sessiond, 1, 0, 0},
+       {"pid",                         'p',    POPT_ARG_INT,           &opt_trace_pid, 0, 0, 0},
        {"quiet",                       'q',    POPT_ARG_VAL,           &opt_quiet, 1, 0, 0},
        {"session",                     's',    POPT_ARG_STRING,        &opt_session_uuid, 0, 0, 0},
        {"sessiond-path",       0,              POPT_ARG_STRING,        &opt_sessiond_path, 0, 0, 0},
-       {"start",                       0,              POPT_ARG_INT,           &opt_start_trace, 0, 0, 0},
-       {"stop",                        0,              POPT_ARG_INT,           &opt_stop_trace, 0, 0, 0},
+       {"start",                       0,              POPT_ARG_VAL,           &opt_start_trace, 1, 0, 0},
+       {"stop",                        0,              POPT_ARG_VAL,           &opt_stop_trace, 1, 0, 0},
        {"verbose",                     'v',    POPT_ARG_VAL,           &opt_verbose, 1, 0, 0},
        //{"session",                   0,              POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_session_name, 0, 0},
        {0, 0, 0, 0, 0, 0, 0}
@@ -91,11 +93,12 @@ static void usage(FILE *ofp)
        fprintf(ofp, "Tracing options:\n");
        //fprintf(ofp, "      --kernel               Enable kernel tracing\n");
        //fprintf(ofp, "      --no-kernel            Disable kernel tracing\n");
+       fprintf(ofp, "  -p, --pid PID                Set tracing action for PID\n");
        fprintf(ofp, "  -L, --list-apps              List traceable UST applications\n");
        fprintf(ofp, "  -t, --list-traces            List session's traces. Use -s to specify the session\n");
-       fprintf(ofp, "  -C, --create-trace PID       Create trace for PID\n");
-       fprintf(ofp, "      --start PID              Start trace for PID\n");
-       fprintf(ofp, "      --stop PID               Stop trace for PID\n");
+       fprintf(ofp, "  -C, --create-trace           Create a trace\n");
+       fprintf(ofp, "      --start                  Start tracing\n");
+       fprintf(ofp, "      --stop                   Stop tracing\n");
        fprintf(ofp, "\n");
        fprintf(ofp, "Please see the lttng(1) man page for full documentation.\n");
        fprintf(ofp, "See http://lttng.org/ust for updates, bug reports and news.\n");