X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fmi-lttng.c;h=d95d38ffb4443978ae8939b42396f6a94977488b;hp=434adfca7f237f5231e4d5916aac6c35b4235184;hb=511ed4e25eeb6821dc4f4b6c573fbbdc07c17053;hpb=c8ecdbb035a23520be85c2805f9dec35229bb0f5 diff --git a/src/common/mi-lttng.c b/src/common/mi-lttng.c index 434adfca7..d95d38ffb 100644 --- a/src/common/mi-lttng.c +++ b/src/common/mi-lttng.c @@ -36,7 +36,7 @@ LTTNG_HIDDEN const char * const mi_lttng_w3_schema_uri = "http://www.w3.org/2001 LTTNG_HIDDEN const char * const mi_lttng_schema_location = "xsi:schemaLocation"; LTTNG_HIDDEN const char * const mi_lttng_schema_location_uri = DEFAULT_LTTNG_MI_NAMESPACE " " - "http://lttng.org/xml/schemas/lttng-mi/" XSTR(MI_SCHEMA_MAJOR_VERSION) + "https://lttng.org/xml/schemas/lttng-mi/" XSTR(MI_SCHEMA_MAJOR_VERSION) "/lttng-mi-" XSTR(MI_SCHEMA_MAJOR_VERSION) "." XSTR(MI_SCHEMA_MINOR_VERSION) ".xsd"; LTTNG_HIDDEN const char * const mi_lttng_schema_version = "schemaVersion"; @@ -47,7 +47,6 @@ LTTNG_HIDDEN const char * const mi_lttng_schema_version_value = XSTR(MI_SCHEMA_M const char * const mi_lttng_element_command = "command"; const char * const mi_lttng_element_command_action = "snapshot_action"; const char * const mi_lttng_element_command_add_context = "add-context"; -const char * const mi_lttng_element_command_calibrate = "calibrate"; const char * const mi_lttng_element_command_create = "create"; const char * const mi_lttng_element_command_destroy = "destroy"; const char * const mi_lttng_element_command_disable_channel = "disable-channel"; @@ -58,6 +57,8 @@ const char * const mi_lttng_element_command_list = "list"; const char * const mi_lttng_element_command_load = "load"; LTTNG_HIDDEN const char * const mi_lttng_element_command_metadata = "metadata"; LTTNG_HIDDEN const char * const mi_lttng_element_command_metadata_action = "metadata_action"; +LTTNG_HIDDEN const char * const mi_lttng_element_command_regenerate = "regenerate"; +LTTNG_HIDDEN const char * const mi_lttng_element_command_regenerate_action = "regenerate_action"; const char * const mi_lttng_element_command_name = "name"; const char * const mi_lttng_element_command_output = "output"; const char * const mi_lttng_element_command_save = "save"; @@ -73,6 +74,10 @@ const char * const mi_lttng_element_command_success = "success"; const char * const mi_lttng_element_command_track = "track"; const char * const mi_lttng_element_command_untrack = "untrack"; const char * const mi_lttng_element_command_version = "version"; +LTTNG_HIDDEN const char * const mi_lttng_element_command_rotate = "rotate"; +LTTNG_HIDDEN const char * const mi_lttng_element_command_enable_rotation = "enable-rotation"; +LTTNG_HIDDEN const char * const mi_lttng_element_command_disable_rotation = "disable-rotation"; +LTTNG_HIDDEN const char * const mi_lttng_element_command_clear = "clear"; /* Strings related to version command */ const char * const mi_lttng_element_version = "version"; @@ -100,6 +105,8 @@ const char * const mi_lttng_element_save = "save"; /* Strings related to load command */ const char * const mi_lttng_element_load = "load"; +LTTNG_HIDDEN const char * const mi_lttng_element_load_overrides = "overrides"; +LTTNG_HIDDEN const char * const mi_lttng_element_load_override_url = "url"; /* General elements of mi_lttng */ const char * const mi_lttng_element_empty = ""; @@ -165,10 +172,6 @@ const char * const mi_lttng_loglevel_type_range = "RANGE"; const char * const mi_lttng_loglevel_type_single = "SINGLE"; const char * const mi_lttng_loglevel_type_unknown = "UNKNOWN"; -/* String related to lttng_calibrate */ -const char * const mi_lttng_element_calibrate = "calibrate"; -const char * const mi_lttng_element_calibrate_function = "FUNCTION"; - /* String related to a lttng_snapshot_output */ const char * const mi_lttng_element_snapshot_ctrl_url = "ctrl_url"; const char * const mi_lttng_element_snapshot_data_url = "data_url"; @@ -180,6 +183,51 @@ const char * const mi_lttng_element_snapshots = "snapshots"; /* String related to track/untrack command */ const char * const mi_lttng_element_track_untrack_all_wildcard = "*"; +LTTNG_HIDDEN const char * const mi_lttng_element_session_name = "session_name"; + +/* String related to rotate command */ +LTTNG_HIDDEN const char * const mi_lttng_element_rotation = "rotation"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotate_status = "status"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_schedule = "rotation_schedule"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_schedules = "rotation_schedules"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_schedule_result = "rotation_schedule_result"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_schedule_results = "rotation_schedule_results"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_schedule_periodic = "periodic"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_schedule_periodic_time_us = "time_us"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_schedule_size_threshold = "size_threshold"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_schedule_size_threshold_bytes = "bytes"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_state = "state"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location = "location"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location_local = "local"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location_local_absolute_path = "absolute_path"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location_relay = "relay"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location_relay_host = "host"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location_relay_control_port = "control_port"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location_relay_data_port = "data_port"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location_relay_protocol = "protocol"; +LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location_relay_relative_path = "relative_path"; + +/* String related to enum lttng_rotation_state */ +LTTNG_HIDDEN const char * const mi_lttng_rotation_state_str_ongoing = "ONGOING"; +LTTNG_HIDDEN const char * const mi_lttng_rotation_state_str_completed = "COMPLETED"; +LTTNG_HIDDEN const char * const mi_lttng_rotation_state_str_expired = "EXPIRED"; +LTTNG_HIDDEN const char * const mi_lttng_rotation_state_str_error = "ERROR"; + +/* String related to enum lttng_trace_archive_location_relay_protocol_type */ +LTTNG_HIDDEN const char * const mi_lttng_rotation_location_relay_protocol_str_tcp = "TCP"; + +/* String related to add-context command */ +LTTNG_HIDDEN const char * const mi_lttng_element_context_symbol = "symbol"; + +/* Deprecated symbols preserved for ABI compatibility. */ +const char * const mi_lttng_context_type_perf_counter; +const char * const mi_lttng_context_type_perf_cpu_counter; +const char * const mi_lttng_context_type_perf_thread_counter; +const char * const mi_lttng_element_track_untrack_pid_target; +const char * const mi_lttng_element_track_untrack_targets; +const char * const mi_lttng_element_calibrate; +const char * const mi_lttng_element_calibrate_function; +const char * const mi_lttng_element_command_calibrate; /* This is a merge of jul loglevel and regular loglevel * Those should never overlap by definition @@ -296,10 +344,9 @@ const char *mi_lttng_loglevel_string(int value, enum lttng_domain_type domain) return mi_lttng_loglevel_str_unknown; } break; + default: + return mi_lttng_loglevel_str_unknown; } - - /* Reaching this means the domain is unknown. */ - return mi_lttng_loglevel_str_unknown; } LTTNG_HIDDEN @@ -317,7 +364,7 @@ const char *mi_lttng_logleveltype_string(enum lttng_loglevel_type value) } } -LTTNG_HIDDEN +static const char *mi_lttng_eventtype_string(enum lttng_event_type value) { switch (value) { @@ -327,6 +374,8 @@ const char *mi_lttng_eventtype_string(enum lttng_event_type value) return config_event_type_tracepoint; case LTTNG_EVENT_PROBE: return config_event_type_probe; + case LTTNG_EVENT_USERSPACE_PROBE: + return config_event_type_userspace_probe; case LTTNG_EVENT_FUNCTION: return config_event_type_function; case LTTNG_EVENT_FUNCTION_ENTRY: @@ -368,6 +417,56 @@ const char *mi_lttng_event_contexttype_string(enum lttng_event_context_type val) return config_event_context_hostname; case LTTNG_EVENT_CONTEXT_IP: return config_event_context_ip; + case LTTNG_EVENT_CONTEXT_INTERRUPTIBLE: + return config_event_context_interruptible; + case LTTNG_EVENT_CONTEXT_PREEMPTIBLE: + return config_event_context_preemptible; + case LTTNG_EVENT_CONTEXT_NEED_RESCHEDULE: + return config_event_context_need_reschedule; + case LTTNG_EVENT_CONTEXT_MIGRATABLE: + return config_event_context_migratable; + case LTTNG_EVENT_CONTEXT_CALLSTACK_USER: + return config_event_context_callstack_user; + case LTTNG_EVENT_CONTEXT_CALLSTACK_KERNEL: + return config_event_context_callstack_kernel; + case LTTNG_EVENT_CONTEXT_CGROUP_NS: + return config_event_context_cgroup_ns; + case LTTNG_EVENT_CONTEXT_IPC_NS: + return config_event_context_ipc_ns; + case LTTNG_EVENT_CONTEXT_MNT_NS: + return config_event_context_mnt_ns; + case LTTNG_EVENT_CONTEXT_NET_NS: + return config_event_context_net_ns; + case LTTNG_EVENT_CONTEXT_PID_NS: + return config_event_context_pid_ns; + case LTTNG_EVENT_CONTEXT_USER_NS: + return config_event_context_user_ns; + case LTTNG_EVENT_CONTEXT_UTS_NS: + return config_event_context_uts_ns; + case LTTNG_EVENT_CONTEXT_UID: + return config_event_context_uid; + case LTTNG_EVENT_CONTEXT_EUID: + return config_event_context_euid; + case LTTNG_EVENT_CONTEXT_SUID: + return config_event_context_suid; + case LTTNG_EVENT_CONTEXT_GID: + return config_event_context_gid; + case LTTNG_EVENT_CONTEXT_EGID: + return config_event_context_egid; + case LTTNG_EVENT_CONTEXT_SGID: + return config_event_context_sgid; + case LTTNG_EVENT_CONTEXT_VUID: + return config_event_context_vuid; + case LTTNG_EVENT_CONTEXT_VEUID: + return config_event_context_veuid; + case LTTNG_EVENT_CONTEXT_VSUID: + return config_event_context_vsuid; + case LTTNG_EVENT_CONTEXT_VGID: + return config_event_context_vgid; + case LTTNG_EVENT_CONTEXT_VEGID: + return config_event_context_vegid; + case LTTNG_EVENT_CONTEXT_VSGID: + return config_event_context_vsgid; default: return NULL; } @@ -430,19 +529,36 @@ const char *mi_lttng_buffertype_string(enum lttng_buffer_type value) } LTTNG_HIDDEN -const char *mi_lttng_calibratetype_string(enum lttng_calibrate_type val) +const char *mi_lttng_rotation_state_string(enum lttng_rotation_state value) { - const char *ret; + switch (value) { + case LTTNG_ROTATION_STATE_ONGOING: + return mi_lttng_rotation_state_str_ongoing; + case LTTNG_ROTATION_STATE_COMPLETED: + return mi_lttng_rotation_state_str_completed; + case LTTNG_ROTATION_STATE_EXPIRED: + return mi_lttng_rotation_state_str_expired; + case LTTNG_ROTATION_STATE_ERROR: + return mi_lttng_rotation_state_str_error; + default: + /* Should not have an unknow rotation state. */ + assert(0); + return NULL; + } +} - switch (val) { - case LTTNG_CALIBRATE_FUNCTION: - ret = mi_lttng_element_calibrate_function; - break; +LTTNG_HIDDEN +const char *mi_lttng_trace_archive_location_relay_protocol_type_string( + enum lttng_trace_archive_location_relay_protocol_type value) +{ + switch (value) { + case LTTNG_TRACE_ARCHIVE_LOCATION_RELAY_PROTOCOL_TYPE_TCP: + return mi_lttng_rotation_location_relay_protocol_str_tcp; default: - ret = mi_lttng_element_empty; - break; + /* Should not have an unknow relay protocol. */ + assert(0); + return NULL; } - return ret; } LTTNG_HIDDEN @@ -871,7 +987,8 @@ int mi_lttng_channel_attr(struct mi_writer *writer, int ret = 0; struct lttng_channel *chan = caa_container_of(attr, struct lttng_channel, attr); - uint64_t discarded_events, lost_packets; + uint64_t discarded_events, lost_packets, monitor_timer_interval; + int64_t blocking_timeout; assert(attr); @@ -885,6 +1002,18 @@ int mi_lttng_channel_attr(struct mi_writer *writer, goto end; } + ret = lttng_channel_get_monitor_timer_interval(chan, + &monitor_timer_interval); + if (ret) { + goto end; + } + + ret = lttng_channel_get_blocking_timeout(chan, + &blocking_timeout); + if (ret) { + goto end; + } + /* Opening Attributes */ ret = mi_lttng_writer_open_element(writer, config_element_attributes); if (ret) { @@ -931,6 +1060,22 @@ int mi_lttng_channel_attr(struct mi_writer *writer, goto end; } + /* Monitor timer interval in usec */ + ret = mi_lttng_writer_write_element_unsigned_int(writer, + config_element_monitor_timer_interval, + monitor_timer_interval); + if (ret) { + goto end; + } + + /* Retry timeout in usec */ + ret = mi_lttng_writer_write_element_signed_int(writer, + config_element_blocking_timeout, + blocking_timeout); + if (ret) { + goto end; + } + /* Event output */ ret = mi_lttng_writer_write_element_string(writer, config_element_output_type, @@ -1169,6 +1314,141 @@ end: return ret; } +static +int mi_lttng_event_userspace_probe(struct mi_writer *writer, + struct lttng_event *event) +{ + int ret; + const struct lttng_userspace_probe_location *location; + const struct lttng_userspace_probe_location_lookup_method *lookup_method; + enum lttng_userspace_probe_location_lookup_method_type lookup_type; + + location = lttng_event_get_userspace_probe_location(event); + if (!location) { + ret = -LTTNG_ERR_INVALID; + goto end; + } + + lookup_method = lttng_userspace_probe_location_get_lookup_method(location); + if (!lookup_method) { + ret = -LTTNG_ERR_INVALID; + goto end; + } + + lookup_type = lttng_userspace_probe_location_lookup_method_get_type(lookup_method); + + ret = mi_lttng_writer_open_element(writer, config_element_attributes); + if (ret) { + goto end; + } + + switch (lttng_userspace_probe_location_get_type(location)) { + case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION: + { + const char *function_name; + const char *binary_path; + + ret = mi_lttng_writer_open_element(writer, + config_element_userspace_probe_function_attributes); + if (ret) { + goto end; + } + + switch (lookup_type) { + case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_FUNCTION_ELF: + ret = mi_lttng_writer_write_element_string(writer, + config_element_userspace_probe_lookup, + config_element_userspace_probe_lookup_function_elf); + if (ret) { + goto end; + } + break; + case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_FUNCTION_DEFAULT: + ret = mi_lttng_writer_write_element_string(writer, + config_element_userspace_probe_lookup, + config_element_userspace_probe_lookup_function_default); + if (ret) { + goto end; + } + break; + default: + goto end; + } + + binary_path = lttng_userspace_probe_location_function_get_binary_path(location); + ret = mi_lttng_writer_write_element_string(writer, + config_element_userspace_probe_location_binary_path, binary_path); + if (ret) { + goto end; + } + + function_name = lttng_userspace_probe_location_function_get_function_name(location); + ret = mi_lttng_writer_write_element_string(writer, + config_element_userspace_probe_function_location_function_name, + function_name); + if (ret) { + goto end; + } + + break; + } + case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_TRACEPOINT: + { + const char *probe_name, *provider_name; + const char *binary_path; + + ret = mi_lttng_writer_open_element(writer, + config_element_userspace_probe_function_attributes); + if (ret) { + goto end; + } + + switch (lookup_type) { + case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_TRACEPOINT_SDT: + ret = mi_lttng_writer_write_element_string(writer, + config_element_userspace_probe_lookup, + config_element_userspace_probe_lookup_tracepoint_sdt); + if (ret) { + goto end; + } + break; + default: + goto end; + } + + binary_path = lttng_userspace_probe_location_tracepoint_get_binary_path(location); + ret = mi_lttng_writer_write_element_string(writer, + config_element_userspace_probe_location_binary_path, + binary_path); + if (ret) { + goto end; + } + + provider_name = lttng_userspace_probe_location_tracepoint_get_provider_name(location); + ret = mi_lttng_writer_write_element_string(writer, + config_element_userspace_probe_tracepoint_location_provider_name, + provider_name); + if (ret) { + goto end; + } + + probe_name = lttng_userspace_probe_location_tracepoint_get_probe_name(location); + ret = mi_lttng_writer_write_element_string(writer, + config_element_userspace_probe_tracepoint_location_probe_name, probe_name); + if (ret) { + goto end; + } + break; + } + default: + ERR("Invalid probe type encountered"); + } + /* Close probe_attributes and attributes */ + ret = mi_lttng_close_multi_element(writer, 2); +end: + return ret; +} + LTTNG_HIDDEN int mi_lttng_event_function_entry(struct mi_writer *writer, struct lttng_event *event) @@ -1233,12 +1513,19 @@ int mi_lttng_event(struct mi_writer *writer, case LTTNG_EVENT_FUNCTION_ENTRY: ret = mi_lttng_event_function_entry(writer, event); break; + case LTTNG_EVENT_USERSPACE_PROBE: + ret = mi_lttng_event_userspace_probe(writer, event); + break; case LTTNG_EVENT_ALL: /* Fallthrough */ default: break; } + if (ret) { + goto end; + } + if (!is_open) { ret = mi_lttng_writer_close_element(writer); } @@ -1418,31 +1705,6 @@ end: return ret; } -LTTNG_HIDDEN -int mi_lttng_calibrate(struct mi_writer *writer, - struct lttng_calibrate *calibrate) -{ - int ret; - - /* Open calibrate element */ - ret = mi_lttng_writer_open_element(writer, mi_lttng_element_calibrate); - if (ret) { - goto end; - } - - /* Calibration type */ - ret = mi_lttng_writer_write_element_string(writer, config_element_type, - mi_lttng_calibratetype_string(calibrate->type)); - if (ret) { - goto end; - } - - /* Closing calibrate element */ - ret = mi_lttng_writer_close_element(writer); -end: - return ret; -} - LTTNG_HIDDEN int mi_lttng_perf_counter_context(struct mi_writer *writer, struct lttng_event_perf_counter_ctx *perf_context) @@ -1816,3 +2078,309 @@ int mi_lttng_snapshot_record(struct mi_writer *writer, end: return ret; } + +LTTNG_HIDDEN +int mi_lttng_rotation_schedule(struct mi_writer *writer, + const struct lttng_rotation_schedule *schedule) +{ + int ret = 0; + enum lttng_rotation_status status; + uint64_t value; + const char *element_name; + const char *value_name; + bool empty_schedule = false; + + switch (lttng_rotation_schedule_get_type(schedule)) { + case LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC: + status = lttng_rotation_schedule_periodic_get_period(schedule, + &value); + element_name = mi_lttng_element_rotation_schedule_periodic; + value_name = mi_lttng_element_rotation_schedule_periodic_time_us; + break; + case LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD: + status = lttng_rotation_schedule_size_threshold_get_threshold( + schedule, &value); + element_name = mi_lttng_element_rotation_schedule_size_threshold; + value_name = mi_lttng_element_rotation_schedule_size_threshold_bytes; + break; + default: + ret = -1; + goto end; + } + + if (status != LTTNG_ROTATION_STATUS_OK) { + if (status == LTTNG_ROTATION_STATUS_UNAVAILABLE) { + empty_schedule = true; + } else { + ret = -1; + goto end; + } + } + + ret = mi_lttng_writer_open_element(writer, element_name); + if (ret) { + goto end; + } + + if (!empty_schedule) { + ret = mi_lttng_writer_write_element_unsigned_int(writer, + value_name, value); + if (ret) { + goto end; + } + } + + /* Close schedule descriptor element. */ + ret = mi_lttng_writer_close_element(writer); + if (ret) { + goto end; + } +end: + return ret; +} + +LTTNG_HIDDEN +int mi_lttng_rotation_schedule_result(struct mi_writer *writer, + const struct lttng_rotation_schedule *schedule, + bool success) +{ + int ret = 0; + + ret = mi_lttng_writer_open_element(writer, + mi_lttng_element_rotation_schedule_result); + if (ret) { + goto end; + } + + ret = mi_lttng_writer_open_element(writer, + mi_lttng_element_rotation_schedule); + if (ret) { + goto end; + } + + ret = mi_lttng_rotation_schedule(writer, schedule); + if (ret) { + goto end; + } + + /* Close rotation_schedule element */ + ret = mi_lttng_writer_close_element(writer); + if (ret) { + goto end; + } + + ret = mi_lttng_writer_write_element_bool(writer, + mi_lttng_element_command_success, success); + if (ret) { + goto end; + } + + /* Close rotation_schedule_result element */ + ret = mi_lttng_writer_close_element(writer); + if (ret) { + goto end; + } +end: + return ret; +} + +static +int mi_lttng_location(struct mi_writer *writer, + const struct lttng_trace_archive_location *location) +{ + int ret = 0; + enum lttng_trace_archive_location_type location_type; + enum lttng_trace_archive_location_status status; + + location_type = lttng_trace_archive_location_get_type(location); + + switch (location_type) { + case LTTNG_TRACE_ARCHIVE_LOCATION_TYPE_LOCAL: + { + const char *absolute_path; + + status = lttng_trace_archive_location_local_get_absolute_path( + location, &absolute_path); + if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) { + ret = -1; + goto end; + } + + ret = mi_lttng_writer_open_element(writer, + mi_lttng_element_rotation_location_local); + if (ret) { + goto end; + } + + + ret = mi_lttng_writer_write_element_string(writer, + mi_lttng_element_rotation_location_local_absolute_path, + absolute_path); + if (ret) { + goto end; + } + + /* Close local element */ + ret = mi_lttng_writer_close_element(writer); + if (ret) { + goto end; + } + break; + } + case LTTNG_TRACE_ARCHIVE_LOCATION_TYPE_RELAY: + { + uint16_t control_port, data_port; + const char *host, *relative_path; + enum lttng_trace_archive_location_relay_protocol_type protocol; + + /* Fetch all relay location parameters. */ + status = lttng_trace_archive_location_relay_get_protocol_type( + location, &protocol); + if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) { + ret = -1; + goto end; + } + + status = lttng_trace_archive_location_relay_get_host( + location, &host); + if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) { + ret = -1; + goto end; + } + + status = lttng_trace_archive_location_relay_get_control_port( + location, &control_port); + if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) { + ret = -1; + goto end; + } + + status = lttng_trace_archive_location_relay_get_data_port( + location, &data_port); + if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) { + ret = -1; + goto end; + } + + status = lttng_trace_archive_location_relay_get_relative_path( + location, &relative_path); + if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) { + ret = -1; + goto end; + } + + ret = mi_lttng_writer_open_element(writer, + mi_lttng_element_rotation_location_relay); + if (ret) { + goto end; + } + + ret = mi_lttng_writer_write_element_string(writer, + mi_lttng_element_rotation_location_relay_host, + host); + if (ret) { + goto end; + } + + ret = mi_lttng_writer_write_element_unsigned_int(writer, + mi_lttng_element_rotation_location_relay_control_port, + control_port); + if (ret) { + goto end; + } + + ret = mi_lttng_writer_write_element_unsigned_int(writer, + mi_lttng_element_rotation_location_relay_data_port, + data_port); + if (ret) { + goto end; + } + + ret = mi_lttng_writer_write_element_string(writer, + mi_lttng_element_rotation_location_relay_protocol, + mi_lttng_trace_archive_location_relay_protocol_type_string(protocol)); + if (ret) { + goto end; + } + + ret = mi_lttng_writer_write_element_string(writer, + mi_lttng_element_rotation_location_relay_relative_path, + relative_path); + if (ret) { + goto end; + } + + /* Close relay element */ + ret = mi_lttng_writer_close_element(writer); + if (ret) { + goto end; + } + break; + } + default: + abort(); + } +end: + return ret; +} + +LTTNG_HIDDEN +int mi_lttng_rotate(struct mi_writer *writer, + const char *session_name, + enum lttng_rotation_state rotation_state, + const struct lttng_trace_archive_location *location) +{ + int ret; + + ret = mi_lttng_writer_open_element(writer, + mi_lttng_element_rotation); + if (ret) { + goto end; + } + + ret = mi_lttng_writer_write_element_string(writer, + mi_lttng_element_session_name, + session_name); + if (ret) { + goto end; + } + + ret = mi_lttng_writer_write_element_string(writer, + mi_lttng_element_rotation_state, + mi_lttng_rotation_state_string(rotation_state)); + if (ret) { + goto end; + } + + if (!location) { + /* Not a serialization error. */ + goto close_rotation; + } + + ret = mi_lttng_writer_open_element(writer, + mi_lttng_element_rotation_location); + if (ret) { + goto end; + } + + ret = mi_lttng_location(writer, location); + if (ret) { + goto close_location; + } + +close_location: + /* Close location element */ + ret = mi_lttng_writer_close_element(writer); + if (ret) { + goto end; + } + +close_rotation: + /* Close rotation element */ + ret = mi_lttng_writer_close_element(writer); + if (ret) { + goto end; + } +end: + return ret; +}