--- /dev/null
+/*
+ * Copyright (C) 2021 Simon Marchi <simon.marchi@efficios.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#include <stdio.h>
+
+#include "../command.h"
+
+#include "common/argpar/argpar.h"
+#include "common/dynamic-array.h"
+#include "common/mi-lttng.h"
+/* For lttng_condition_type_str(). */
+#include "lttng/condition/condition-internal.h"
+#include "lttng/condition/event-rule-matches.h"
+#include "lttng/condition/event-rule-matches-internal.h"
+/* For lttng_domain_type_str(). */
+#include "lttng/domain-internal.h"
+/* For lttng_event_rule_kernel_syscall_emission_site_str() */
+#include "lttng/event-rule/kernel-syscall-internal.h"
+#include "../loglevel.h"
+#include <lttng/lttng.h>
+
+#ifdef LTTNG_EMBED_HELP
+static const char help_msg[] =
+#include <lttng-list-triggers.1.h>
+;
+#endif
+
+#define INDENTATION_LEVEL_STR " "
+
+typedef enum lttng_event_rule_status (*event_rule_logging_get_name_pattern)(
+ const struct lttng_event_rule *rule, const char **pattern);
+typedef enum lttng_event_rule_status (*event_rule_logging_get_filter)(
+ const struct lttng_event_rule *rule, const char **expression);
+typedef enum lttng_event_rule_status (*event_rule_logging_get_log_level_rule)(
+ const struct lttng_event_rule *rule,
+ const struct lttng_log_level_rule **log_level_rule);
+
+enum {
+ OPT_HELP,
+ OPT_LIST_OPTIONS,
+};
+
+static const
+struct argpar_opt_descr list_trigger_options[] = {
+ { OPT_HELP, 'h', "help", false },
+ { OPT_LIST_OPTIONS, '\0', "list-options", false },
+ ARGPAR_OPT_DESCR_SENTINEL,
+};
+
+static void print_condition_session_consumed_size(
+ const struct lttng_condition *condition)
+{
+ enum lttng_condition_status condition_status;
+ const char *session_name;
+ uint64_t threshold;
+
+ condition_status =
+ lttng_condition_session_consumed_size_get_session_name(
+ condition, &session_name);
+ LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK);
+
+ lttng_condition_session_consumed_size_get_threshold(
+ condition, &threshold);
+ LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK);
+
+ MSG(" session name: %s", session_name);
+ MSG(" threshold: %" PRIu64 " bytes", threshold);
+}
+
+static void print_condition_buffer_usage(
+ const struct lttng_condition *condition)
+{
+ enum lttng_condition_status condition_status;
+ const char *session_name, *channel_name;
+ enum lttng_domain_type domain_type;
+ uint64_t threshold;
+
+ condition_status = lttng_condition_buffer_usage_get_session_name(
+ condition, &session_name);
+ LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK);
+
+ condition_status = lttng_condition_buffer_usage_get_channel_name(
+ condition, &channel_name);
+ LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK);
+
+ condition_status = lttng_condition_buffer_usage_get_domain_type(
+ condition, &domain_type);
+ LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK);
+
+ MSG(" session name: %s", session_name);
+ MSG(" channel name: %s", channel_name);
+ MSG(" domain: %s", lttng_domain_type_str(domain_type));
+
+ condition_status = lttng_condition_buffer_usage_get_threshold(
+ condition, &threshold);
+ if (condition_status == LTTNG_CONDITION_STATUS_OK) {
+ MSG(" threshold (bytes): %" PRIu64, threshold);
+ } else {
+ double threshold_ratio;
+
+ LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_UNSET);
+
+ condition_status =
+ lttng_condition_buffer_usage_get_threshold_ratio(
+ condition, &threshold_ratio);
+ LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK);
+
+ MSG(" threshold (ratio): %.2f", threshold_ratio);
+ }
+}
+
+static void print_condition_session_rotation(
+ const struct lttng_condition *condition)
+{
+ enum lttng_condition_status condition_status;
+ const char *session_name;
+
+ condition_status = lttng_condition_session_rotation_get_session_name(
+ condition, &session_name);
+ LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK);
+
+ MSG(" session name: %s", session_name);
+}
+
+/*
+ * Returns the human-readable log level name associated with a numerical value
+ * if there is one. The Log4j and JUL event rule have discontinuous log level
+ * values (a value can fall between two labels). In those cases, NULL is
+ * returned.
+ */
+static const char *get_pretty_loglevel_name(
+ enum lttng_event_rule_type event_rule_type, int loglevel)
+{
+ const char *name = NULL;
+
+ switch (event_rule_type) {
+ case LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT:
+ name = loglevel_value_to_name(loglevel);
+ break;
+ case LTTNG_EVENT_RULE_TYPE_LOG4J_LOGGING:
+ name = loglevel_log4j_value_to_name(loglevel);
+ break;
+ case LTTNG_EVENT_RULE_TYPE_JUL_LOGGING:
+ name = loglevel_jul_value_to_name(loglevel);
+ break;
+ case LTTNG_EVENT_RULE_TYPE_PYTHON_LOGGING:
+ name = loglevel_python_value_to_name(loglevel);
+ break;
+ default:
+ break;
+ }
+
+ return name;
+}
+
+static
+void print_event_rule_user_tracepoint(const struct lttng_event_rule *event_rule)
+{
+ enum lttng_event_rule_status event_rule_status;
+ const char *pattern;
+ const char *filter;
+ int log_level;
+ const struct lttng_log_level_rule *log_level_rule = NULL;
+ unsigned int exclusions_count;
+ int i;
+
+ event_rule_status = lttng_event_rule_user_tracepoint_get_name_pattern(
+ event_rule, &pattern);
+ LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK);
+
+ _MSG(" rule: %s (type: user tracepoint", pattern);
+
+ event_rule_status = lttng_event_rule_user_tracepoint_get_filter(
+ event_rule, &filter);
+ if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) {
+ _MSG(", filter: %s", filter);
+ } else {
+ LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET);
+ }
+
+ event_rule_status = lttng_event_rule_user_tracepoint_get_log_level_rule(
+ event_rule, &log_level_rule);
+ if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) {
+ enum lttng_log_level_rule_status llr_status;
+ const char *log_level_op;
+ const char *pretty_loglevel_name;
+
+ switch (lttng_log_level_rule_get_type(log_level_rule)) {
+ case LTTNG_LOG_LEVEL_RULE_TYPE_EXACTLY:
+ log_level_op = "is";
+ llr_status = lttng_log_level_rule_exactly_get_level(
+ log_level_rule, &log_level);
+ break;
+ case LTTNG_LOG_LEVEL_RULE_TYPE_AT_LEAST_AS_SEVERE_AS:
+ log_level_op = "at least";
+ llr_status = lttng_log_level_rule_at_least_as_severe_as_get_level(
+ log_level_rule, &log_level);
+ break;
+ default:
+ abort();
+ }
+
+ LTTNG_ASSERT(llr_status == LTTNG_LOG_LEVEL_RULE_STATUS_OK);
+
+ pretty_loglevel_name = get_pretty_loglevel_name(
+ LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT, log_level);
+ if (pretty_loglevel_name) {
+ _MSG(", log level %s %s", log_level_op,
+ pretty_loglevel_name);
+ } else {
+ _MSG(", log level %s %d", log_level_op, log_level);
+ }
+ } else {
+ LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET);
+ }
+
+ event_rule_status = lttng_event_rule_user_tracepoint_get_name_pattern_exclusion_count(
+ event_rule, &exclusions_count);
+ LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK);
+ if (exclusions_count > 0) {
+ _MSG(", exclusions: ");
+ for (i = 0; i < exclusions_count; i++) {
+ const char *exclusion;
+
+ event_rule_status = lttng_event_rule_user_tracepoint_get_name_pattern_exclusion_at_index(
+ event_rule, i, &exclusion);
+ LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK);
+
+ _MSG("%s%s", i > 0 ? "," : "", exclusion);
+ }
+ }
+
+ MSG(")");
+}
+
+static
+void print_event_rule_kernel_tracepoint(const struct lttng_event_rule *event_rule)
+{
+ enum lttng_event_rule_status event_rule_status;
+ const char *pattern;
+ const char *filter;
+
+ event_rule_status = lttng_event_rule_kernel_tracepoint_get_name_pattern(
+ event_rule, &pattern);
+ LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK);
+
+ _MSG(" rule: %s (type: kernel tracepoint", pattern);
+
+ event_rule_status = lttng_event_rule_kernel_tracepoint_get_filter(
+ event_rule, &filter);
+ if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) {
+ _MSG(", filter: %s", filter);
+ } else {
+ LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET);
+ }
+
+ MSG(")");
+}
+
+static
+void print_event_rule_logging(const struct lttng_event_rule *event_rule)
+{
+ enum lttng_event_rule_status event_rule_status;
+ enum lttng_event_rule_type event_rule_type = lttng_event_rule_get_type(event_rule);
+ const char *pattern;
+ const char *filter;
+ int log_level;
+ const struct lttng_log_level_rule *log_level_rule = NULL;
+ const char *type_str = NULL;
+
+ event_rule_logging_get_name_pattern logging_get_name_pattern;
+ event_rule_logging_get_filter logging_get_filter;
+ event_rule_logging_get_log_level_rule logging_get_log_level_rule;
+
+ switch (event_rule_type) {
+ case LTTNG_EVENT_RULE_TYPE_JUL_LOGGING:
+ logging_get_name_pattern =
+ lttng_event_rule_jul_logging_get_name_pattern;
+ logging_get_filter = lttng_event_rule_jul_logging_get_filter;
+ logging_get_log_level_rule =
+ lttng_event_rule_jul_logging_get_log_level_rule;
+ type_str = "jul";
+ break;
+ case LTTNG_EVENT_RULE_TYPE_LOG4J_LOGGING:
+ logging_get_name_pattern =
+ lttng_event_rule_log4j_logging_get_name_pattern;
+ logging_get_filter = lttng_event_rule_log4j_logging_get_filter;
+ logging_get_log_level_rule =
+ lttng_event_rule_log4j_logging_get_log_level_rule;
+ type_str = "log4j";
+ break;
+ case LTTNG_EVENT_RULE_TYPE_PYTHON_LOGGING:
+ logging_get_name_pattern =
+ lttng_event_rule_python_logging_get_name_pattern;
+ logging_get_filter = lttng_event_rule_python_logging_get_filter;
+ logging_get_log_level_rule =
+ lttng_event_rule_python_logging_get_log_level_rule;
+ type_str = "python";
+ break;
+ default:
+ abort();
+ break;
+ }
+
+ event_rule_status = logging_get_name_pattern(
+ event_rule, &pattern);
+ LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK);
+
+ _MSG(" rule: %s (type: %s:logging", pattern, type_str);
+
+ event_rule_status = logging_get_filter(
+ event_rule, &filter);
+ if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) {
+ _MSG(", filter: %s", filter);
+ } else {
+ LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET);
+ }
+
+ event_rule_status = logging_get_log_level_rule(
+ event_rule, &log_level_rule);
+ if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) {
+ enum lttng_log_level_rule_status llr_status;
+ const char *log_level_op;
+ const char *pretty_loglevel_name;
+
+ switch (lttng_log_level_rule_get_type(log_level_rule)) {
+ case LTTNG_LOG_LEVEL_RULE_TYPE_EXACTLY:
+ log_level_op = "is";
+ llr_status = lttng_log_level_rule_exactly_get_level(
+ log_level_rule, &log_level);
+ break;
+ case LTTNG_LOG_LEVEL_RULE_TYPE_AT_LEAST_AS_SEVERE_AS:
+ log_level_op = "at least";
+ llr_status = lttng_log_level_rule_at_least_as_severe_as_get_level(
+ log_level_rule, &log_level);
+ break;
+ default:
+ abort();
+ }
+
+ LTTNG_ASSERT(llr_status == LTTNG_LOG_LEVEL_RULE_STATUS_OK);
+
+ pretty_loglevel_name = get_pretty_loglevel_name(
+ event_rule_type, log_level);
+ if (pretty_loglevel_name) {
+ _MSG(", log level %s %s", log_level_op,
+ pretty_loglevel_name);
+ } else {
+ _MSG(", log level %s %d", log_level_op, log_level);
+ }
+ } else {
+ LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET);
+ }
+
+ MSG(")");
+}
+
+static void print_kernel_probe_location(
+ const struct lttng_kernel_probe_location *location)
+{
+ enum lttng_kernel_probe_location_status status;
+ switch (lttng_kernel_probe_location_get_type(location)) {
+ case LTTNG_KERNEL_PROBE_LOCATION_TYPE_ADDRESS:
+ {
+ uint64_t address;
+
+ status = lttng_kernel_probe_location_address_get_address(
+ location, &address);
+ if (status != LTTNG_KERNEL_PROBE_LOCATION_STATUS_OK) {
+ ERR("Getting kernel probe location address failed.");
+ goto end;
+ }
+
+ _MSG("0x%" PRIx64, address);
+
+ break;
+ }
+ case LTTNG_KERNEL_PROBE_LOCATION_TYPE_SYMBOL_OFFSET:
+ {
+ uint64_t offset;
+ const char *symbol_name;
+
+ symbol_name = lttng_kernel_probe_location_symbol_get_name(
+ location);
+ if (!symbol_name) {
+ ERR("Getting kernel probe location symbol name failed.");
+ goto end;
+ }
+
+ status = lttng_kernel_probe_location_symbol_get_offset(
+ location, &offset);
+ if (status != LTTNG_KERNEL_PROBE_LOCATION_STATUS_OK) {
+ ERR("Getting kernel probe location address failed.");
+ goto end;
+ }
+
+ if (offset == 0) {
+ _MSG("%s", symbol_name);
+ } else {
+ _MSG("%s+0x%" PRIx64, symbol_name, offset);
+ }
+
+ break;
+ }
+ default:
+ abort();
+ };
+end:
+ return;
+}
+
+static
+void print_event_rule_kernel_probe(const struct lttng_event_rule *event_rule)
+{
+ enum lttng_event_rule_status event_rule_status;
+ const char *name;
+ const struct lttng_kernel_probe_location *location;
+
+ LTTNG_ASSERT(lttng_event_rule_get_type(event_rule) == LTTNG_EVENT_RULE_TYPE_KERNEL_KPROBE);
+
+ event_rule_status = lttng_event_rule_kernel_kprobe_get_event_name(event_rule, &name);
+ if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) {
+ ERR("Failed to get kprobe event rule's name.");
+ goto end;
+ }
+
+ event_rule_status = lttng_event_rule_kernel_kprobe_get_location(
+ event_rule, &location);
+ if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) {
+ ERR("Failed to get kprobe event rule's location.");
+ goto end;
+ }
+
+ _MSG(" rule: %s (type: kernel:kprobe, location: ", name);
+
+ print_kernel_probe_location(location);
+
+ MSG(")");
+
+end:
+ return;
+}
+
+static
+void print_event_rule_userspace_probe(const struct lttng_event_rule *event_rule)
+{
+ enum lttng_event_rule_status event_rule_status;
+ const char *name;
+ const struct lttng_userspace_probe_location *location;
+ enum lttng_userspace_probe_location_type userspace_probe_location_type;
+
+ LTTNG_ASSERT(lttng_event_rule_get_type(event_rule) == LTTNG_EVENT_RULE_TYPE_KERNEL_UPROBE);
+
+ event_rule_status = lttng_event_rule_kernel_uprobe_get_event_name(
+ event_rule, &name);
+ if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) {
+ ERR("Failed to get uprobe event rule's name.");
+ goto end;
+ }
+
+ event_rule_status = lttng_event_rule_kernel_uprobe_get_location(
+ event_rule, &location);
+ if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) {
+ ERR("Failed to get uprobe event rule's location.");
+ goto end;
+ }
+
+ _MSG(" rule: %s (type: kernel:uprobe, ", name);
+
+ userspace_probe_location_type =
+ lttng_userspace_probe_location_get_type(location);
+
+ switch (userspace_probe_location_type) {
+ case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION:
+ {
+ const char *binary_path, *function_name;
+
+ binary_path = lttng_userspace_probe_location_function_get_binary_path(
+ location);
+ function_name = lttng_userspace_probe_location_function_get_function_name(
+ location);
+
+ _MSG("location type: ELF, location: %s:%s", binary_path, function_name);
+ break;
+ }
+ case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_TRACEPOINT:
+ {
+ const char *binary_path, *provider_name, *probe_name;
+
+ binary_path = lttng_userspace_probe_location_tracepoint_get_binary_path(
+ location);
+ provider_name = lttng_userspace_probe_location_tracepoint_get_provider_name(
+ location);
+ probe_name = lttng_userspace_probe_location_tracepoint_get_probe_name(
+ location);
+ _MSG("location type: SDT, location: %s:%s:%s", binary_path, provider_name, probe_name);
+ break;
+ }
+ default:
+ abort();
+ }
+
+ MSG(")");
+
+end:
+ return;
+}
+
+static
+void print_event_rule_syscall(const struct lttng_event_rule *event_rule)
+{
+ const char *pattern, *filter;
+ enum lttng_event_rule_status event_rule_status;
+ enum lttng_event_rule_kernel_syscall_emission_site emission_site;
+
+ LTTNG_ASSERT(lttng_event_rule_get_type(event_rule) == LTTNG_EVENT_RULE_TYPE_KERNEL_SYSCALL);
+
+ emission_site =
+ lttng_event_rule_kernel_syscall_get_emission_site(event_rule);
+
+ event_rule_status = lttng_event_rule_kernel_syscall_get_name_pattern(
+ event_rule, &pattern);
+ LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK);
+
+ _MSG(" rule: %s (type: kernel:syscall:%s", pattern,
+ lttng_event_rule_kernel_syscall_emission_site_str(
+ emission_site));
+
+ event_rule_status = lttng_event_rule_kernel_syscall_get_filter(
+ event_rule, &filter);
+ if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) {
+ _MSG(", filter: %s", filter);
+ } else {
+ LTTNG_ASSERT(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET);
+ }
+
+ MSG(")");
+}
+
+static
+void print_event_rule(const struct lttng_event_rule *event_rule)
+{
+ const enum lttng_event_rule_type event_rule_type =
+ lttng_event_rule_get_type(event_rule);
+
+ switch (event_rule_type) {
+ case LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT:
+ print_event_rule_user_tracepoint(event_rule);
+ break;
+ case LTTNG_EVENT_RULE_TYPE_KERNEL_TRACEPOINT:
+ print_event_rule_kernel_tracepoint(event_rule);
+ break;
+ case LTTNG_EVENT_RULE_TYPE_JUL_LOGGING:
+ case LTTNG_EVENT_RULE_TYPE_LOG4J_LOGGING:
+ case LTTNG_EVENT_RULE_TYPE_PYTHON_LOGGING:
+ print_event_rule_logging(event_rule);
+ break;
+ case LTTNG_EVENT_RULE_TYPE_KERNEL_KPROBE:
+ print_event_rule_kernel_probe(event_rule);
+ break;
+ case LTTNG_EVENT_RULE_TYPE_KERNEL_UPROBE:
+ print_event_rule_userspace_probe(event_rule);
+ break;
+ case LTTNG_EVENT_RULE_TYPE_KERNEL_SYSCALL:
+ print_event_rule_syscall(event_rule);
+ break;
+ default:
+ abort();
+ }
+}
+
+static
+void print_one_event_expr(const struct lttng_event_expr *event_expr)
+{
+ enum lttng_event_expr_type type;
+
+ type = lttng_event_expr_get_type(event_expr);
+
+ switch (type) {
+ case LTTNG_EVENT_EXPR_TYPE_EVENT_PAYLOAD_FIELD:
+ {
+ const char *name;
+
+ name = lttng_event_expr_event_payload_field_get_name(
+ event_expr);
+ _MSG("%s", name);
+
+ break;
+ }
+ case LTTNG_EVENT_EXPR_TYPE_CHANNEL_CONTEXT_FIELD:
+ {
+ const char *name;
+
+ name = lttng_event_expr_channel_context_field_get_name(
+ event_expr);
+ _MSG("$ctx.%s", name);
+
+ break;
+ }
+ case LTTNG_EVENT_EXPR_TYPE_APP_SPECIFIC_CONTEXT_FIELD:
+ {
+ const char *provider_name;
+ const char *type_name;
+
+ provider_name = lttng_event_expr_app_specific_context_field_get_provider_name(
+ event_expr);
+ type_name = lttng_event_expr_app_specific_context_field_get_type_name(
+ event_expr);
+
+ _MSG("$app.%s:%s", provider_name, type_name);
+
+ break;
+ }
+ case LTTNG_EVENT_EXPR_TYPE_ARRAY_FIELD_ELEMENT:
+ {
+ unsigned int index;
+ const struct lttng_event_expr *parent_expr;
+ enum lttng_event_expr_status status;
+
+ parent_expr = lttng_event_expr_array_field_element_get_parent_expr(
+ event_expr);
+ LTTNG_ASSERT(parent_expr != NULL);
+
+ print_one_event_expr(parent_expr);
+
+ status = lttng_event_expr_array_field_element_get_index(
+ event_expr, &index);
+ LTTNG_ASSERT(status == LTTNG_EVENT_EXPR_STATUS_OK);
+
+ _MSG("[%u]", index);
+
+ break;
+ }
+ default:
+ abort();
+ }
+}
+
+static
+void print_indentation(unsigned int indentation_level)
+{
+ unsigned int i;
+
+ for (i = 0; i < indentation_level; i++) {
+ _MSG(INDENTATION_LEVEL_STR);
+ }
+}
+
+static
+void print_error_query_results(struct lttng_error_query_results *results,
+ unsigned int base_indentation_level)
+{
+ unsigned int i, count, printed_errors_count = 0;
+ enum lttng_error_query_results_status results_status;
+
+ results_status = lttng_error_query_results_get_count(results, &count);
+ LTTNG_ASSERT(results_status == LTTNG_ERROR_QUERY_RESULTS_STATUS_OK);
+
+ LTTNG_ASSERT(results);
+
+ print_indentation(base_indentation_level);
+ _MSG("errors:");
+
+ for (i = 0; i < count; i++) {
+ const struct lttng_error_query_result *result;
+ enum lttng_error_query_result_status result_status;
+ const char *result_name;
+ const char *result_description;
+ uint64_t result_value;
+
+ results_status = lttng_error_query_results_get_result(
+ results, &result, i);
+ LTTNG_ASSERT(results_status == LTTNG_ERROR_QUERY_RESULTS_STATUS_OK);
+
+ result_status = lttng_error_query_result_get_name(
+ result, &result_name);
+ LTTNG_ASSERT(result_status == LTTNG_ERROR_QUERY_RESULT_STATUS_OK);
+ result_status = lttng_error_query_result_get_description(
+ result, &result_description);
+ LTTNG_ASSERT(result_status == LTTNG_ERROR_QUERY_RESULT_STATUS_OK);
+
+
+ if (lttng_error_query_result_get_type(result) ==
+ LTTNG_ERROR_QUERY_RESULT_TYPE_COUNTER) {
+ result_status = lttng_error_query_result_counter_get_value(
+ result, &result_value);
+ LTTNG_ASSERT(result_status ==
+ LTTNG_ERROR_QUERY_RESULT_STATUS_OK);
+ if (result_value == 0) {
+ continue;
+ }
+
+ MSG("");
+ print_indentation(base_indentation_level + 1);
+
+ _MSG("%s: %" PRIu64, result_name, result_value);
+ printed_errors_count++;
+ } else {
+ MSG("");
+ print_indentation(base_indentation_level + 1);
+ _MSG("Unknown error query result type for result '%s' (%s)",
+ result_name, result_description);
+ continue;
+ }
+ }
+
+ if (printed_errors_count == 0) {
+ _MSG(" none");
+ }
+}
+
+static void print_condition_event_rule_matches(
+ const struct lttng_condition *condition)
+{
+ const struct lttng_event_rule *event_rule;
+ enum lttng_condition_status condition_status;
+ unsigned int cap_desc_count, i;
+
+ condition_status = lttng_condition_event_rule_matches_get_rule(
+ condition, &event_rule);
+ LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK);
+
+ print_event_rule(event_rule);
+
+ condition_status =
+ lttng_condition_event_rule_matches_get_capture_descriptor_count(
+ condition, &cap_desc_count);
+ LTTNG_ASSERT(condition_status == LTTNG_CONDITION_STATUS_OK);
+
+ if (cap_desc_count > 0) {
+ MSG(" captures:");
+
+ for (i = 0; i < cap_desc_count; i++) {
+ const struct lttng_event_expr *cap_desc =
+ lttng_condition_event_rule_matches_get_capture_descriptor_at_index(
+ condition, i);
+
+ _MSG(" - ");
+ print_one_event_expr(cap_desc);
+ MSG("");
+ }
+ }
+}
+
+static void print_action_errors(const struct lttng_trigger *trigger,
+ const struct lttng_action *action,
+ const uint64_t *action_path_indexes,
+ size_t action_path_length)
+{
+ enum lttng_error_code error_query_ret;
+ struct lttng_error_query_results *results = NULL;
+ const char *trigger_name;
+ uid_t trigger_uid;
+ enum lttng_trigger_status trigger_status;
+ struct lttng_error_query *query;
+ struct lttng_action_path *action_path = lttng_action_path_create(
+ action_path_indexes, action_path_length);
+
+ LTTNG_ASSERT(action_path);
+
+ query = lttng_error_query_action_create(trigger, action_path);
+ LTTNG_ASSERT(query);
+
+ trigger_status = lttng_trigger_get_name(trigger, &trigger_name);
+ /*
+ * Anonymous triggers are not listed; this would be an internal error.
+ */
+ LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ trigger_status = lttng_trigger_get_owner_uid(trigger, &trigger_uid);
+ LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ error_query_ret = lttng_error_query_execute(
+ query, lttng_session_daemon_command_endpoint, &results);
+ if (error_query_ret != LTTNG_OK) {
+ ERR("Failed to query errors of trigger '%s' (owner uid: %d): %s",
+ trigger_name, (int) trigger_uid,
+ lttng_strerror(-error_query_ret));
+ goto end;
+ }
+
+ print_error_query_results(results, 3);
+
+end:
+ MSG("");
+ lttng_error_query_destroy(query);
+ lttng_error_query_results_destroy(results);
+ lttng_action_path_destroy(action_path);
+}
+
+static
+void print_one_action(const struct lttng_trigger *trigger,
+ const struct lttng_action *action,
+ const uint64_t *action_path_indexes,
+ size_t action_path_length)
+{
+ enum lttng_action_type action_type;
+ enum lttng_action_status action_status;
+ const struct lttng_rate_policy *policy = NULL;
+ const char *value;
+
+ action_type = lttng_action_get_type(action);
+ LTTNG_ASSERT(action_type != LTTNG_ACTION_TYPE_LIST);
+
+ switch (action_type) {
+ case LTTNG_ACTION_TYPE_NOTIFY:
+ _MSG("notify");
+
+ action_status = lttng_action_notify_get_rate_policy(
+ action, &policy);
+ if (action_status != LTTNG_ACTION_STATUS_OK) {
+ ERR("Failed to retrieve rate policy.");
+ goto end;
+ }
+ break;
+ case LTTNG_ACTION_TYPE_START_SESSION:
+ action_status = lttng_action_start_session_get_session_name(
+ action, &value);
+ LTTNG_ASSERT(action_status == LTTNG_ACTION_STATUS_OK);
+ _MSG("start session `%s`", value);
+
+ action_status = lttng_action_start_session_get_rate_policy(
+ action, &policy);
+ if (action_status != LTTNG_ACTION_STATUS_OK) {
+ ERR("Failed to retrieve rate policy.");
+ goto end;
+ }
+ break;
+ case LTTNG_ACTION_TYPE_STOP_SESSION:
+ action_status = lttng_action_stop_session_get_session_name(
+ action, &value);
+ LTTNG_ASSERT(action_status == LTTNG_ACTION_STATUS_OK);
+ _MSG("stop session `%s`", value);
+
+ action_status = lttng_action_stop_session_get_rate_policy(
+ action, &policy);
+ if (action_status != LTTNG_ACTION_STATUS_OK) {
+ ERR("Failed to retrieve rate policy.");
+ goto end;
+ }
+ break;
+ case LTTNG_ACTION_TYPE_ROTATE_SESSION:
+ action_status = lttng_action_rotate_session_get_session_name(
+ action, &value);
+ LTTNG_ASSERT(action_status == LTTNG_ACTION_STATUS_OK);
+ _MSG("rotate session `%s`", value);
+
+ action_status = lttng_action_rotate_session_get_rate_policy(
+ action, &policy);
+ if (action_status != LTTNG_ACTION_STATUS_OK) {
+ ERR("Failed to retrieve rate policy.");
+ goto end;
+ }
+ break;
+ case LTTNG_ACTION_TYPE_SNAPSHOT_SESSION:
+ {
+ const struct lttng_snapshot_output *output;
+
+ action_status = lttng_action_snapshot_session_get_session_name(
+ action, &value);
+ LTTNG_ASSERT(action_status == LTTNG_ACTION_STATUS_OK);
+ _MSG("snapshot session `%s`", value);
+
+ action_status = lttng_action_snapshot_session_get_output(
+ action, &output);
+ if (action_status == LTTNG_ACTION_STATUS_OK) {
+ const char *name;
+ uint64_t max_size;
+ const char *ctrl_url, *data_url;
+ bool starts_with_file, starts_with_net, starts_with_net6;
+
+ ctrl_url = lttng_snapshot_output_get_ctrl_url(output);
+ LTTNG_ASSERT(ctrl_url && strlen(ctrl_url) > 0);
+
+ data_url = lttng_snapshot_output_get_data_url(output);
+ LTTNG_ASSERT(data_url);
+
+ starts_with_file = strncmp(ctrl_url, "file://", strlen("file://")) == 0;
+ starts_with_net = strncmp(ctrl_url, "net://", strlen("net://")) == 0;
+ starts_with_net6 = strncmp(ctrl_url, "net6://", strlen("net6://")) == 0;
+
+ if (ctrl_url[0] == '/' || starts_with_file) {
+ if (starts_with_file) {
+ ctrl_url += strlen("file://");
+ }
+
+ _MSG(", path: %s", ctrl_url);
+ } else if (starts_with_net || starts_with_net6) {
+ _MSG(", url: %s", ctrl_url);
+ } else {
+ LTTNG_ASSERT(strlen(data_url) > 0);
+
+ _MSG(", control url: %s, data url: %s", ctrl_url, data_url);
+ }
+
+ name = lttng_snapshot_output_get_name(output);
+ LTTNG_ASSERT(name);
+ if (strlen(name) > 0) {
+ _MSG(", name: %s", name);
+ }
+
+ max_size = lttng_snapshot_output_get_maxsize(output);
+ if (max_size != -1ULL) {
+ _MSG(", max size: %" PRIu64, max_size);
+ }
+ }
+
+ action_status = lttng_action_snapshot_session_get_rate_policy(
+ action, &policy);
+ if (action_status != LTTNG_ACTION_STATUS_OK) {
+ ERR("Failed to retrieve rate policy.");
+ goto end;
+ }
+ break;
+ }
+ default:
+ abort();
+ }
+
+ if (policy) {
+ enum lttng_rate_policy_type policy_type;
+ enum lttng_rate_policy_status policy_status;
+ uint64_t policy_value = 0;
+
+ policy_type = lttng_rate_policy_get_type(policy);
+
+ switch (policy_type) {
+ case LTTNG_RATE_POLICY_TYPE_EVERY_N:
+ policy_status = lttng_rate_policy_every_n_get_interval(
+ policy, &policy_value);
+ if (policy_status != LTTNG_RATE_POLICY_STATUS_OK) {
+ ERR("Failed to get action rate policy interval");
+ goto end;
+ }
+ if (policy_value > 1) {
+ /* The default is 1 so print only when it is a
+ * special case.
+ */
+ _MSG(", rate policy: every %" PRIu64
+ " occurrences",
+ policy_value);
+ }
+ break;
+ case LTTNG_RATE_POLICY_TYPE_ONCE_AFTER_N:
+ policy_status = lttng_rate_policy_once_after_n_get_threshold(
+ policy, &policy_value);
+ if (policy_status != LTTNG_RATE_POLICY_STATUS_OK) {
+ ERR("Failed to get action rate policy interval");
+ goto end;
+ }
+ _MSG(", rate policy: once after %" PRIu64
+ " occurrences",
+ policy_value);
+ break;
+ default:
+ abort();
+ }
+ }
+
+ MSG("");
+ print_action_errors(trigger, action, action_path_indexes,
+ action_path_length);
+
+end:
+ return;
+}
+
+static
+void print_trigger_errors(const struct lttng_trigger *trigger)
+{
+ enum lttng_error_code error_query_ret;
+ struct lttng_error_query_results *results = NULL;
+ enum lttng_trigger_status trigger_status;
+ const char *trigger_name;
+ uid_t trigger_uid;
+ struct lttng_error_query *query =
+ lttng_error_query_trigger_create(trigger);
+
+ LTTNG_ASSERT(query);
+ /*
+ * Anonymous triggers are not listed; this would be an internal error.
+ */
+ trigger_status = lttng_trigger_get_name(trigger, &trigger_name);
+ LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ trigger_status = lttng_trigger_get_owner_uid(trigger, &trigger_uid);
+ LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ error_query_ret = lttng_error_query_execute(
+ query, lttng_session_daemon_command_endpoint, &results);
+ if (error_query_ret != LTTNG_OK) {
+ ERR("Failed to query errors of trigger '%s' (owner uid: %d): %s",
+ trigger_name, (int) trigger_uid,
+ lttng_strerror(-error_query_ret));
+ goto end;
+ }
+
+ print_error_query_results(results, 1);
+
+end:
+ MSG("");
+ lttng_error_query_destroy(query);
+ lttng_error_query_results_destroy(results);
+}
+
+static
+void print_condition_errors(const struct lttng_trigger *trigger)
+{
+ enum lttng_error_code error_query_ret;
+ struct lttng_error_query_results *results = NULL;
+ enum lttng_trigger_status trigger_status;
+ const char *trigger_name;
+ uid_t trigger_uid;
+ struct lttng_error_query *query =
+ lttng_error_query_condition_create(trigger);
+
+ LTTNG_ASSERT(query);
+ /*
+ * Anonymous triggers are not listed; this would be an internal error.
+ */
+ trigger_status = lttng_trigger_get_name(trigger, &trigger_name);
+ LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ trigger_status = lttng_trigger_get_owner_uid(trigger, &trigger_uid);
+ LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ error_query_ret = lttng_error_query_execute(
+ query, lttng_session_daemon_command_endpoint, &results);
+ if (error_query_ret != LTTNG_OK) {
+ ERR("Failed to query errors of condition of trigger '%s' (owner uid: %d): %s",
+ trigger_name, (int) trigger_uid,
+ lttng_strerror(-error_query_ret));
+ goto end;
+ }
+
+ print_error_query_results(results, 2);
+
+end:
+ MSG("");
+ lttng_error_query_destroy(query);
+ lttng_error_query_results_destroy(results);
+}
+
+static
+void print_one_trigger(const struct lttng_trigger *trigger)
+{
+ const struct lttng_condition *condition;
+ enum lttng_condition_type condition_type;
+ const struct lttng_action *action;
+ enum lttng_action_type action_type;
+ enum lttng_trigger_status trigger_status;
+ const char *name;
+ uid_t trigger_uid;
+
+ /*
+ * Anonymous triggers are not listed since they can't be specified nor
+ * referenced through the CLI.
+ */
+ trigger_status = lttng_trigger_get_name(trigger, &name);
+ if (trigger_status == LTTNG_TRIGGER_STATUS_UNSET) {
+ goto end;
+ }
+
+ LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ trigger_status = lttng_trigger_get_owner_uid(trigger, &trigger_uid);
+ LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ MSG("- name: %s", name);
+ MSG(" owner uid: %d", trigger_uid);
+
+ condition = lttng_trigger_get_const_condition(trigger);
+ condition_type = lttng_condition_get_type(condition);
+ MSG(" condition: %s", lttng_condition_type_str(condition_type));
+ switch (condition_type) {
+ case LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE:
+ print_condition_session_consumed_size(condition);
+ break;
+ case LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH:
+ case LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW:
+ print_condition_buffer_usage(condition);
+ break;
+ case LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING:
+ case LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED:
+ print_condition_session_rotation(condition);
+ break;
+ case LTTNG_CONDITION_TYPE_EVENT_RULE_MATCHES:
+ print_condition_event_rule_matches(condition);
+ break;
+ default:
+ abort();
+ }
+
+ print_condition_errors(trigger);
+
+ action = lttng_trigger_get_const_action(trigger);
+ action_type = lttng_action_get_type(action);
+ if (action_type == LTTNG_ACTION_TYPE_LIST) {
+ unsigned int count, i;
+ enum lttng_action_status action_status;
+
+ MSG(" actions:");
+
+ action_status = lttng_action_list_get_count(action, &count);
+ LTTNG_ASSERT(action_status == LTTNG_ACTION_STATUS_OK);
+
+ for (i = 0; i < count; i++) {
+ const uint64_t action_path_index = i;
+ const struct lttng_action *subaction =
+ lttng_action_list_get_at_index(
+ action, i);
+
+ _MSG(" ");
+ print_one_action(trigger, subaction, &action_path_index,
+ 1);
+ }
+ } else {
+ _MSG(" action:");
+ print_one_action(trigger, action, NULL, 0);
+ }
+
+ print_trigger_errors(trigger);
+end:
+ return;
+}
+
+static
+int compare_triggers_by_name(const void *a, const void *b)
+{
+ const struct lttng_trigger *trigger_a = *((const struct lttng_trigger **) a);
+ const struct lttng_trigger *trigger_b = *((const struct lttng_trigger **) b);
+ const char *name_a, *name_b;
+ enum lttng_trigger_status trigger_status;
+
+ /* Anonymous triggers are not reachable here. */
+ trigger_status = lttng_trigger_get_name(trigger_a, &name_a);
+ LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ trigger_status = lttng_trigger_get_name(trigger_b, &name_b);
+ LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ return strcmp(name_a, name_b);
+}
+
+static int print_sorted_triggers(const struct lttng_triggers *triggers)
+{
+ int ret;
+ int i;
+ struct lttng_dynamic_pointer_array sorted_triggers;
+ enum lttng_trigger_status trigger_status;
+ unsigned int num_triggers;
+
+ lttng_dynamic_pointer_array_init(&sorted_triggers, NULL);
+
+ trigger_status = lttng_triggers_get_count(triggers, &num_triggers);
+ if (trigger_status != LTTNG_TRIGGER_STATUS_OK) {
+ ERR("Failed to get trigger count.");
+ goto error;
+ }
+
+ for (i = 0; i < num_triggers; i++) {
+ int add_ret;
+ const char *unused_name;
+ const struct lttng_trigger *trigger =
+ lttng_triggers_get_at_index(triggers, i);
+
+ trigger_status = lttng_trigger_get_name(trigger, &unused_name);
+ switch (trigger_status) {
+ case LTTNG_TRIGGER_STATUS_OK:
+ break;
+ case LTTNG_TRIGGER_STATUS_UNSET:
+ /* Don't list anonymous triggers. */
+ continue;
+ default:
+ abort();
+ }
+
+ add_ret = lttng_dynamic_pointer_array_add_pointer(
+ &sorted_triggers, (void *) trigger);
+ if (add_ret) {
+ ERR("Failed to allocate array of struct lttng_trigger *.");
+ goto error;
+ }
+ }
+
+ qsort(sorted_triggers.array.buffer.data, num_triggers,
+ sizeof(struct lttng_trigger *),
+ compare_triggers_by_name);
+
+ for (i = 0; i < lttng_dynamic_pointer_array_get_count(&sorted_triggers);
+ i++) {
+ const struct lttng_trigger *trigger_to_print = (const struct lttng_trigger
+ *)
+ lttng_dynamic_pointer_array_get_pointer(
+ &sorted_triggers, i);
+
+ print_one_trigger(trigger_to_print);
+ }
+
+ ret = 0;
+ goto end;
+error:
+ ret = 1;
+
+end:
+ lttng_dynamic_pointer_array_reset(&sorted_triggers);
+ return ret;
+}
+
+static enum lttng_error_code mi_error_query_trigger_callback(
+ const struct lttng_trigger *trigger,
+ struct lttng_error_query_results **results)
+{
+ enum lttng_error_code ret_code;
+ struct lttng_error_query *query =
+ lttng_error_query_trigger_create(trigger);
+
+ LTTNG_ASSERT(results);
+ LTTNG_ASSERT(query);
+
+ ret_code = lttng_error_query_execute(
+ query, lttng_session_daemon_command_endpoint, results);
+ if (ret_code != LTTNG_OK) {
+ enum lttng_trigger_status trigger_status;
+ const char *trigger_name;
+ uid_t trigger_uid;
+
+ trigger_status = lttng_trigger_get_name(trigger, &trigger_name);
+ LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ trigger_status = lttng_trigger_get_owner_uid(
+ trigger, &trigger_uid);
+ LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ ERR("Failed to query errors of trigger '%s' (owner uid: %d): %s",
+ trigger_name, (int) trigger_uid,
+ lttng_strerror(-ret_code));
+ }
+
+ lttng_error_query_destroy(query);
+ return ret_code;
+}
+
+static enum lttng_error_code mi_error_query_action_callback(
+ const struct lttng_trigger *trigger,
+ const struct lttng_action_path *action_path,
+ struct lttng_error_query_results **results)
+{
+ enum lttng_error_code ret_code;
+ struct lttng_error_query *query =
+ lttng_error_query_action_create(trigger, action_path);
+
+ LTTNG_ASSERT(results);
+ LTTNG_ASSERT(query);
+
+ ret_code = lttng_error_query_execute(
+ query, lttng_session_daemon_command_endpoint, results);
+ if (ret_code != LTTNG_OK) {
+ enum lttng_trigger_status trigger_status;
+ const char *trigger_name;
+ uid_t trigger_uid;
+
+ trigger_status = lttng_trigger_get_name(trigger, &trigger_name);
+ LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ trigger_status = lttng_trigger_get_owner_uid(
+ trigger, &trigger_uid);
+ LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ ERR("Failed to query errors of an action for trigger '%s' (owner uid: %d): %s",
+ trigger_name, (int) trigger_uid,
+ lttng_strerror(-ret_code));
+ }
+
+ lttng_error_query_destroy(query);
+ return ret_code;
+}
+
+static enum lttng_error_code mi_error_query_condition_callback(
+ const struct lttng_trigger *trigger,
+ struct lttng_error_query_results **results)
+{
+ enum lttng_error_code ret_code;
+ struct lttng_error_query *query =
+ lttng_error_query_condition_create(trigger);
+
+ LTTNG_ASSERT(results);
+ LTTNG_ASSERT(query);
+
+ ret_code = lttng_error_query_execute(
+ query, lttng_session_daemon_command_endpoint, results);
+ if (ret_code != LTTNG_OK) {
+ enum lttng_trigger_status trigger_status;
+ const char *trigger_name;
+ uid_t trigger_uid;
+
+ trigger_status = lttng_trigger_get_name(trigger, &trigger_name);
+ LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ trigger_status = lttng_trigger_get_owner_uid(
+ trigger, &trigger_uid);
+ LTTNG_ASSERT(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ ERR("Failed to query errors of of condition for condition of trigger '%s' (owner uid: %d): %s",
+ trigger_name, (int) trigger_uid,
+ lttng_strerror(-ret_code));
+ }
+
+ lttng_error_query_destroy(query);
+ return ret_code;
+}
+
+int cmd_list_triggers(int argc, const char **argv)
+{
+ int ret;
+ struct argpar_parse_ret argpar_parse_ret = {};
+ struct lttng_triggers *triggers = NULL;
+ int i;
+ struct mi_writer *mi_writer = NULL;
+
+ argpar_parse_ret = argpar_parse(
+ argc - 1, argv + 1, list_trigger_options, true);
+ if (!argpar_parse_ret.items) {
+ ERR("%s", argpar_parse_ret.error);
+ goto error;
+ }
+
+ for (i = 0; i < argpar_parse_ret.items->n_items; i++) {
+ const struct argpar_item *item =
+ argpar_parse_ret.items->items[i];
+
+ if (item->type == ARGPAR_ITEM_TYPE_OPT) {
+ const struct argpar_item_opt *item_opt =
+ (const struct argpar_item_opt *) item;
+
+ switch (item_opt->descr->id) {
+ case OPT_HELP:
+ SHOW_HELP();
+ ret = 0;
+ goto end;
+
+ case OPT_LIST_OPTIONS:
+ list_cmd_options_argpar(
+ stdout, list_trigger_options);
+ ret = 0;
+ goto end;
+
+ default:
+ abort();
+ }
+
+ } else {
+ const struct argpar_item_non_opt *item_non_opt =
+ (const struct argpar_item_non_opt *) item;
+
+ ERR("Unexpected argument: %s", item_non_opt->arg);
+ }
+ }
+
+ ret = lttng_list_triggers(&triggers);
+ if (ret != LTTNG_OK) {
+ ERR("Error listing triggers: %s.", lttng_strerror(-ret));
+ goto error;
+ }
+
+ if (lttng_opt_mi) {
+ mi_writer = mi_lttng_writer_create(
+ fileno(stdout), lttng_opt_mi);
+ if (!mi_writer) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+
+ /* Open command element. */
+ ret = mi_lttng_writer_command_open(mi_writer,
+ mi_lttng_element_command_list_trigger);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+
+ /* Open output element. */
+ ret = mi_lttng_writer_open_element(
+ mi_writer, mi_lttng_element_command_output);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+ }
+
+ if (lttng_opt_mi) {
+ const struct mi_lttng_error_query_callbacks callbacks = {
+ .trigger_cb = mi_error_query_trigger_callback,
+ .condition_cb = mi_error_query_condition_callback,
+ .action_cb = mi_error_query_action_callback,
+ };
+
+ ret = lttng_triggers_mi_serialize(
+ triggers, mi_writer, &callbacks);
+ if (ret != LTTNG_OK) {
+ ERR("Error printing MI triggers: %s.",
+ lttng_strerror(-ret));
+ goto error;
+ }
+ } else {
+ ret = print_sorted_triggers(triggers);
+ if (ret) {
+ ERR("Error printing triggers");
+ goto error;
+ }
+ }
+
+ /* Mi closing. */
+ if (lttng_opt_mi) {
+ /* Close output element. */
+ ret = mi_lttng_writer_close_element(mi_writer);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+
+ /* Command element close. */
+ ret = mi_lttng_writer_command_close(mi_writer);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+ }
+
+ ret = 0;
+ goto end;
+
+error:
+ ret = 1;
+
+end:
+ argpar_parse_ret_fini(&argpar_parse_ret);
+ lttng_triggers_destroy(triggers);
+ /* Mi clean-up. */
+ if (mi_writer && mi_lttng_writer_destroy(mi_writer)) {
+ /* Preserve original error code. */
+ ret = ret ? ret : CMD_ERROR;
+ }
+ return ret;
+}
projects / lttng-tools.git / blobdiff