X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=lttng%2Flttng.c;h=69b563d4a643eb80db6718673602ebe67efb9c4b;hp=3e5f1b187f238049bc8c81a01fafbd161083888f;hb=734f79bf717d87817623d382c59086dc9e8ef610;hpb=36c0262a92b315ba2c20ea4c5f56ba0f94538c3c

diff --git a/lttng/lttng.c b/lttng/lttng.c
index 3e5f1b187..69b563d4a 100644
--- a/lttng/lttng.c
+++ b/lttng/lttng.c
@@ -23,6 +23,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+#include <config.h>
 
 #include <lttng/lttng.h>
 
@@ -71,6 +72,7 @@ static struct cmd_struct commands[] =  {
 	{ "add-context", cmd_add_context},
 	{ "set-session", cmd_set_session},
 	{ "version", cmd_version},
+	{ "calibrate", cmd_calibrate},
 	{ NULL, NULL}	/* Array closure */
 };
 
@@ -91,6 +93,7 @@ static void usage(FILE *ofp)
 	fprintf(ofp, "\n");
 	fprintf(ofp, "Commands:\n");
 	fprintf(ofp, "    add-context     Add context to event or/and channel\n");
+	fprintf(ofp, "    calibrate       Quantify LTTng overhead\n");
 	fprintf(ofp, "    create          Create tracing session\n");
 	fprintf(ofp, "    destroy         Teardown tracing session\n");
 	fprintf(ofp, "    enable-channel  Enable tracing channel\n");
@@ -284,7 +287,7 @@ static int spawn_sessiond(char *pathname)
 		 * Spawn session daemon and tell
 		 * it to signal us when ready.
 		 */
-		execlp(pathname, "ltt-sessiond", "--sig-parent", "--quiet", NULL);
+		execlp(pathname, "lttng-sessiond", "--sig-parent", "--quiet", NULL);
 		/* execlp only returns if error happened */
 		if (errno == ENOENT) {
 			ERR("No session daemon found. Use --sessiond-path.");
@@ -294,7 +297,7 @@ static int spawn_sessiond(char *pathname)
 		kill(getppid(), SIGTERM);	/* unpause parent */
 		exit(EXIT_FAILURE);
 	} else if (pid > 0) {
-		/* Wait for ltt-sessiond to start */
+		/* Wait for lttng-sessiond to start */
 		pause();
 		goto end;
 	} else {
@@ -336,7 +339,7 @@ static int check_sessiond(void)
 
 		/* Let's rock and roll */
 		if (pathname == NULL) {
-			ret = asprintf(&alloc_pathname, INSTALL_BIN_PATH "/ltt-sessiond");
+			ret = asprintf(&alloc_pathname, INSTALL_BIN_PATH "/lttng-sessiond");
 			if (ret < 0) {
 				perror("asprintf spawn sessiond");
 				goto end;
@@ -356,6 +359,23 @@ end:
 	return ret;
 }
 
+/*
+ * Check for the "help" option in the argv. If found, return 1 else return 0.
+ */
+static int check_help_command(int argc, char **argv)
+{
+	int i;
+
+	for (i = 0; i < argc; i++) {
+		if ((strncmp(argv[i], "-h", 2) == 0) ||
+				strncmp(argv[i], "--h", 3) == 0) {
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
 /*
  *  parse_args
  *
@@ -377,7 +397,7 @@ static int parse_args(int argc, char **argv)
 			usage(stderr);
 			goto error;
 		case 'v':
-			opt_verbose = 1;
+			opt_verbose += 1;
 			break;
 		case 'q':
 			opt_quiet = 1;
@@ -411,7 +431,8 @@ static int parse_args(int argc, char **argv)
 	}
 
 	/* Spawn session daemon if needed */
-	if (opt_no_sessiond == 0 && (check_sessiond() < 0)) {
+	if (opt_no_sessiond == 0 && check_help_command(argc, argv) == 0 &&
+			(check_sessiond() < 0)) {
 		goto error;
 	}
 
@@ -430,7 +451,7 @@ static int parse_args(int argc, char **argv)
 		if (ret == -1) {
 			usage(stderr);
 		} else {
-			ERR("%s", lttng_get_readable_code(ret));
+			ERR("%s", lttng_strerror(ret));
 		}
 		goto error;
 	}