X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng%2Fcommands%2Fadd_trigger.c;h=4395c182b42db5f528dda42f65de46e48984304d;hb=074060e8e7d729d94e69ced71ed52b4a40c982c2;hp=109daba974008515c35a21d49d08bda0244bbf34;hpb=5f5ce3e62ef9681799c187493ea3bcd0143230f1;p=lttng-tools.git

diff --git a/src/bin/lttng/commands/add_trigger.c b/src/bin/lttng/commands/add_trigger.c
index 109daba97..4395c182b 100644
--- a/src/bin/lttng/commands/add_trigger.c
+++ b/src/bin/lttng/commands/add_trigger.c
@@ -697,8 +697,9 @@ struct parse_event_rule_res parse_event_rule(int *argc, const char ***argv,
 		enum parse_next_item_status status;
 
 		status = parse_next_item(argpar_iter, &argpar_item,
-			argc_offset, *argv, false, NULL);
-		if (status == PARSE_NEXT_ITEM_STATUS_ERROR) {
+			argc_offset, *argv, false, NULL, NULL);
+		if (status == PARSE_NEXT_ITEM_STATUS_ERROR ||
+				status == PARSE_NEXT_ITEM_STATUS_ERROR_MEMORY) {
 			goto error;
 		} else if (status == PARSE_NEXT_ITEM_STATUS_END) {
 			break;
@@ -1414,9 +1415,22 @@ struct condition_descr condition_descrs[] = {
 	{ "event-rule-matches", handle_condition_event },
 };
 
+static
+void print_valid_condition_names(void)
+{
+	unsigned int i;
+
+	ERR("Valid condition names are:");
+
+	for (i = 0; i < ARRAY_SIZE(condition_descrs); ++i) {
+		ERR("  %s", condition_descrs[i].name);
+	}
+}
+
 static
 struct lttng_condition *parse_condition(const char *condition_name, int *argc,
-		const char ***argv, int argc_offset)
+		const char ***argv, int argc_offset, int orig_arg_index,
+		const char *orig_arg)
 {
 	int i;
 	struct lttng_condition *cond;
@@ -1430,7 +1444,9 @@ struct lttng_condition *parse_condition(const char *condition_name, int *argc,
 	}
 
 	if (!descr) {
-		ERR("Unknown condition name '%s'", condition_name);
+		ERR(WHILE_PARSING_ARG_N_ARG_FMT "Unknown condition name '%s'",
+			orig_arg_index + 1, orig_arg, condition_name);
+		print_valid_condition_names();
 		goto error;
 	}
 
@@ -1545,9 +1561,10 @@ struct lttng_action *handle_action_notify(int *argc, const char ***argv,
 		enum parse_next_item_status status;
 
 		status = parse_next_item(argpar_iter, &argpar_item,
-			argc_offset, *argv, false,
+			argc_offset, *argv, false, NULL,
 			"While parsing `notify` action:");
-		if (status == PARSE_NEXT_ITEM_STATUS_ERROR) {
+		if (status == PARSE_NEXT_ITEM_STATUS_ERROR ||
+				status == PARSE_NEXT_ITEM_STATUS_ERROR_MEMORY) {
 			goto error;
 		} else if (status == PARSE_NEXT_ITEM_STATUS_END) {
 			break;
@@ -1651,9 +1668,10 @@ static struct lttng_action *handle_action_simple_session_with_policy(int *argc,
 		enum parse_next_item_status status;
 
 		status = parse_next_item(argpar_iter, &argpar_item, argc_offset,
-			*argv, false,
+			*argv, false, NULL,
 			"While parsing `%s` action:", action_name);
-		if (status == PARSE_NEXT_ITEM_STATUS_ERROR) {
+		if (status == PARSE_NEXT_ITEM_STATUS_ERROR ||
+				status == PARSE_NEXT_ITEM_STATUS_ERROR_MEMORY) {
 			goto error;
 		} else if (status == PARSE_NEXT_ITEM_STATUS_END) {
 			break;
@@ -1811,8 +1829,9 @@ struct lttng_action *handle_action_snapshot_session(int *argc,
 		enum parse_next_item_status status;
 
 		status = parse_next_item(argpar_iter, &argpar_item, argc_offset,
-			*argv, false, "While parsing `snapshot` action:");
-		if (status == PARSE_NEXT_ITEM_STATUS_ERROR) {
+			*argv, false, NULL, "While parsing `snapshot` action:");
+		if (status == PARSE_NEXT_ITEM_STATUS_ERROR ||
+				status == PARSE_NEXT_ITEM_STATUS_ERROR_MEMORY) {
 			goto error;
 		} else if (status == PARSE_NEXT_ITEM_STATUS_END) {
 			break;
@@ -2095,9 +2114,22 @@ struct action_descr action_descrs[] = {
 	{ "snapshot-session", handle_action_snapshot_session },
 };
 
+static
+void print_valid_action_names(void)
+{
+	unsigned int i;
+
+	ERR("Valid action names are:");
+
+	for (i = 0; i < ARRAY_SIZE(condition_descrs); ++i) {
+		ERR("  %s", action_descrs[i].name);
+	}
+}
+
 static
 struct lttng_action *parse_action(const char *action_name, int *argc,
-		const char ***argv, int argc_offset)
+		const char ***argv, int argc_offset, int orig_arg_index,
+		const char *orig_arg)
 {
 	int i;
 	struct lttng_action *action;
@@ -2111,7 +2143,9 @@ struct lttng_action *parse_action(const char *action_name, int *argc,
 	}
 
 	if (!descr) {
-		ERR("Unknown action name: %s", action_name);
+		ERR(WHILE_PARSING_ARG_N_ARG_FMT "Unknown action name '%s'",
+			orig_arg_index + 1, orig_arg, action_name);
+		print_valid_action_names();
 		goto error;
 	}
 
@@ -2156,6 +2190,7 @@ int cmd_add_trigger(int argc, const char **argv)
 	struct lttng_dynamic_pointer_array actions;
 	struct argpar_iter *argpar_iter = NULL;
 	const struct argpar_item *argpar_item = NULL;
+	const struct argpar_error *argpar_error = NULL;
 	struct lttng_action *action_list = NULL;
 	struct lttng_action *action = NULL;
 	struct lttng_trigger *trigger = NULL;
@@ -2207,8 +2242,22 @@ int cmd_add_trigger(int argc, const char **argv)
 		}
 
 		status = parse_next_item(argpar_iter, &argpar_item,
-			argc - my_argc, my_argv, true, NULL);
+			argc - my_argc, my_argv, true, &argpar_error, NULL);
 		if (status == PARSE_NEXT_ITEM_STATUS_ERROR) {
+
+			if (argpar_error_type(argpar_error) ==
+					ARGPAR_ERROR_TYPE_MISSING_OPT_ARG) {
+				int opt_id = argpar_error_opt_descr(argpar_error, NULL)->id;
+
+				if (opt_id == OPT_CONDITION) {
+					print_valid_condition_names();
+				} else if (opt_id == OPT_ACTION) {
+					print_valid_action_names();
+				}
+			}
+
+			goto error;
+		} else if (status == PARSE_NEXT_ITEM_STATUS_ERROR_MEMORY) {
 			goto error;
 		} else if (status == PARSE_NEXT_ITEM_STATUS_END) {
 			break;
@@ -2247,7 +2296,8 @@ int cmd_add_trigger(int argc, const char **argv)
 			}
 
 			condition = parse_condition(arg, &my_argc, &my_argv,
-				argc - my_argc);
+				argc - my_argc, argc - my_argc - ingested_args,
+				my_argv[-ingested_args]);
 			if (!condition) {
 				/*
 				 * An error message was already printed by
@@ -2261,7 +2311,8 @@ int cmd_add_trigger(int argc, const char **argv)
 		case OPT_ACTION:
 		{
 			action = parse_action(arg, &my_argc, &my_argv,
-				argc - my_argc);
+				argc - my_argc,  argc - my_argc - ingested_args,
+				my_argv[-ingested_args]);
 			if (!action) {
 				/*
 				 * An error message was already printed by
@@ -2426,6 +2477,7 @@ end:
 	}
 
 cleanup:
+	argpar_error_destroy(argpar_error);
 	argpar_iter_destroy(argpar_iter);
 	argpar_item_destroy(argpar_item);
 	lttng_dynamic_pointer_array_reset(&actions);