Fix comments and usage output

[lttng-tools.git] / src / bin / lttng-consumerd / lttng-consumerd.c

diff --git a/src/bin/lttng-consumerd/lttng-consumerd.c b/src/bin/lttng-consumerd/lttng-consumerd.c
index a637a904244979b5f8b0a310e458684a03162d19..5d1ad06829f3539cd9619d27467c89580dbe569a 100644 (file)
--- a/src/bin/lttng-consumerd/lttng-consumerd.c
+++ b/src/bin/lttng-consumerd/lttng-consumerd.c
@@ -49,12 +49,12 @@
 
 #include "lttng-consumerd.h"
 
-/* TODO : support UST (all direct kernctl accesses). */
+/* TODO : support UST (all direct kern-ctl accesses). */
 
 /* the two threads (receive fd and poll) */
 static pthread_t threads[2];
 
-/* to count the number of time the user pressed ctrl+c */
+/* to count the number of times the user pressed ctrl+c */
 static int sigintcount = 0;
 
 /* Argument variables */
@@ -119,28 +119,28 @@ static int set_signal_handler(void)
 }
 
 /*
- * usage function on stderr
+ * Usage function on stream file.
  */
-static void usage(void)
+static void usage(FILE *fp)
 {
-       fprintf(stderr, "Usage: %s OPTIONS\n\nOptions:\n", progname);
-       fprintf(stderr, "  -h, --help                         "
+       fprintf(fp, "Usage: %s OPTIONS\n\nOptions:\n", progname);
+       fprintf(fp, "  -h, --help                         "
                        "Display this usage.\n");
-       fprintf(stderr, "  -c, --consumerd-cmd-sock PATH     "
+       fprintf(fp, "  -c, --consumerd-cmd-sock PATH     "
                        "Specify path for the command socket\n");
-       fprintf(stderr, "  -e, --consumerd-err-sock PATH     "
+       fprintf(fp, "  -e, --consumerd-err-sock PATH     "
                        "Specify path for the error socket\n");
-       fprintf(stderr, "  -d, --daemonize                    "
+       fprintf(fp, "  -d, --daemonize                    "
                        "Start as a daemon.\n");
-       fprintf(stderr, "  -q, --quiet                        "
+       fprintf(fp, "  -q, --quiet                        "
                        "No output at all.\n");
-       fprintf(stderr, "  -v, --verbose                      "
+       fprintf(fp, "  -v, --verbose                      "
                        "Verbose mode. Activate DBG() macro.\n");
-       fprintf(stderr, "  -V, --version                      "
+       fprintf(fp, "  -V, --version                      "
                        "Show version number.\n");
-       fprintf(stderr, "  -k, --kernel                       "
+       fprintf(fp, "  -k, --kernel                       "
                        "Consumer kernel buffers (default).\n");
-       fprintf(stderr, "  -u, --ust                          "
+       fprintf(fp, "  -u, --ust                          "
                        "Consumer UST buffers.%s\n",
 #ifdef HAVE_LIBLTTNG_UST_CTL
                        ""
@@ -196,8 +196,8 @@ static void parse_args(int argc, char **argv)
                        opt_daemon = 1;
                        break;
                case 'h':
-                       usage();
-                       exit(EXIT_FAILURE);
+                       usage(stdout);
+                       exit(EXIT_SUCCESS);
                case 'q':
                        opt_quiet = 1;
                        break;
@@ -222,7 +222,7 @@ static void parse_args(int argc, char **argv)
                        break;
 #endif
                default:
-                       usage();
+                       usage(stderr);
                        exit(EXIT_FAILURE);
                }
        }
@@ -310,7 +310,7 @@ int main(int argc, char **argv)
        ret = lttcomm_connect_unix_sock(error_sock_path);
        /* not a fatal error, but all communication with lttng-sessiond will fail */
        if (ret < 0) {
-               WARN("Cannot connect to error socket, is lttng-sessiond started ?");
+               WARN("Cannot connect to error socket (is lttng-sessiond started ?)");
        }
        lttng_consumer_set_error_sock(ctx, ret);