X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fmain.c;h=4d700d1e54130fae8ae19369e8bdc8e3b7ca7771;hb=04135dbd279d3d0de6a6527b9b933e59de5cb495;hp=3a8a1b27cf5e403389ba0b962ac775ec1040e158;hpb=ef367a93d16bb6f1a32e50e3538a56d4f18fe715;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/main.c b/src/bin/lttng-sessiond/main.c
index 3a8a1b27c..4d700d1e5 100644
--- a/src/bin/lttng-sessiond/main.c
+++ b/src/bin/lttng-sessiond/main.c
@@ -155,6 +155,7 @@ static const struct option long_options[] = {
 	{ "jul-tcp-port", 1, 0, 'J' },
 	{ "config", 1, 0, 'f' },
 	{ "load", 1, 0, 'l' },
+	{ "kmod-probes", 1, 0, 'P' },
 	{ NULL, 0, 0, 0 }
 };
 
@@ -2821,6 +2822,38 @@ static int process_client_msg(struct command_ctx *cmd_ctx, int sock,
 		break;
 	}
 
+	/*
+	 * Commands that need a valid session but should NOT create one if none
+	 * exists. Instead of creating one and destroying it when the command is
+	 * handled, process that right before so we save some round trip in useless
+	 * code path.
+	 */
+	switch (cmd_ctx->lsm->cmd_type) {
+	case LTTNG_DISABLE_CHANNEL:
+	case LTTNG_DISABLE_EVENT:
+	case LTTNG_DISABLE_ALL_EVENT:
+		switch (cmd_ctx->lsm->domain.type) {
+		case LTTNG_DOMAIN_KERNEL:
+			if (!cmd_ctx->session->kernel_session) {
+				ret = LTTNG_ERR_NO_CHANNEL;
+				goto error;
+			}
+			break;
+		case LTTNG_DOMAIN_JUL:
+		case LTTNG_DOMAIN_UST:
+			if (!cmd_ctx->session->ust_session) {
+				ret = LTTNG_ERR_NO_CHANNEL;
+				goto error;
+			}
+			break;
+		default:
+			ret = LTTNG_ERR_UNKNOWN_DOMAIN;
+			goto error;
+		}
+	default:
+		break;
+	}
+
 	if (!need_domain) {
 		goto skip_domain;
 	}
@@ -4132,6 +4165,7 @@ static void usage(void)
 	fprintf(stderr, "      --jul-tcp-port                 JUL application registration TCP port\n");
 	fprintf(stderr, "  -f  --config                       Load daemon configuration file\n");
 	fprintf(stderr, "  -l  --load PATH                    Load session configuration\n");
+	fprintf(stderr, "      --kmod-probes                  Specify kernel module probes to load\n");
 }
 
 /*
@@ -4204,7 +4238,10 @@ static int set_option(int opt, const char *arg, const char *optname)
 		if (arg) {
 			lttng_opt_verbose = config_parse_value(arg);
 		} else {
-			lttng_opt_verbose += 1;
+			/* Only 3 level of verbosity (-vvv). */
+			if (lttng_opt_verbose < 3) {
+				lttng_opt_verbose += 1;
+			}
 		}
 		break;
 	case 'Z':
@@ -4258,6 +4295,12 @@ static int set_option(int opt, const char *arg, const char *optname)
 			ret = -ENOMEM;
 		}
 		break;
+	case 'P': /* probe modules list */
+		kmod_probes_list = strdup(arg);
+		break;
+	case 'f':
+		/* This is handled in set_options() thus silent break. */
+		break;
 	default:
 		/* Unknown option or other error.
 		 * Error is printed by getopt, just return */
@@ -5190,7 +5233,7 @@ int main(int argc, char **argv)
 	ret = pthread_create(&apps_notify_thread, NULL,
 			ust_thread_manage_notify, (void *) NULL);
 	if (ret != 0) {
-		PERROR("pthread_create apps");
+		PERROR("pthread_create notify");
 		goto exit_apps_notify;
 	}
 
@@ -5198,7 +5241,7 @@ int main(int argc, char **argv)
 	ret = pthread_create(&jul_reg_thread, NULL,
 			jul_thread_manage_registration, (void *) NULL);
 	if (ret != 0) {
-		PERROR("pthread_create apps");
+		PERROR("pthread_create JUL");
 		goto exit_jul_reg;
 	}