--- /dev/null
+/*
+ * Copyright (C) 2014 Jonathan Rajotte <jonathan.r.julien@gmail.com>
+ * Copyright (C) 2014 Olivier Cotte <olivier.cotte@polymtl.ca>
+ * Copyright (C) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#include "lttng/tracker.h"
+#define _LGPL_SOURCE
+#include "mi-lttng.h"
+#include <common/config/session-config.h>
+#include <common/defaults.h>
+#include <common/tracker.h>
+#include <lttng/channel.h>
+#include <lttng/snapshot-internal.h>
+
+
+#define MI_SCHEMA_MAJOR_VERSION 4
+#define MI_SCHEMA_MINOR_VERSION 1
+
+/* Machine interface namespace URI */
+const char * const mi_lttng_xmlns = "xmlns";
+const char * const mi_lttng_xmlns_xsi = "xmlns:xsi";
+const char * const mi_lttng_w3_schema_uri = "http://www.w3.org/2001/XMLSchema-instance";
+const char * const mi_lttng_schema_location = "xsi:schemaLocation";
+const char * const mi_lttng_schema_location_uri =
+ DEFAULT_LTTNG_MI_NAMESPACE " "
+ "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";
+const char * const mi_lttng_schema_version = "schemaVersion";
+const char * const mi_lttng_schema_version_value = XSTR(MI_SCHEMA_MAJOR_VERSION)
+ "." XSTR(MI_SCHEMA_MINOR_VERSION);
+
+/* Strings related to command */
+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_add_trigger = "add-trigger";
+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";
+const char * const mi_lttng_element_command_disable_event = "disable-event";
+const char * const mi_lttng_element_command_enable_channels = "enable-channel";
+const char * const mi_lttng_element_command_enable_event = "enable-event";
+const char * const mi_lttng_element_command_list = "list";
+const char *const mi_lttng_element_command_list_trigger = "list-trigger";
+const char * const mi_lttng_element_command_load = "load";
+const char * const mi_lttng_element_command_metadata = "metadata";
+const char * const mi_lttng_element_command_metadata_action = "metadata_action";
+const char * const mi_lttng_element_command_regenerate = "regenerate";
+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_remove_trigger = "remove-trigger";
+const char * const mi_lttng_element_command_save = "save";
+const char * const mi_lttng_element_command_set_session = "set-session";
+const char * const mi_lttng_element_command_snapshot = "snapshot";
+const char * const mi_lttng_element_command_snapshot_add = "add_snapshot";
+const char * const mi_lttng_element_command_snapshot_del = "del_snapshot";
+const char * const mi_lttng_element_command_snapshot_list = "list_snapshot";
+const char * const mi_lttng_element_command_snapshot_record = "record_snapshot";
+const char * const mi_lttng_element_command_start = "start";
+const char * const mi_lttng_element_command_stop = "stop";
+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";
+const char * const mi_lttng_element_command_rotate = "rotate";
+const char * const mi_lttng_element_command_enable_rotation = "enable-rotation";
+const char * const mi_lttng_element_command_disable_rotation = "disable-rotation";
+const char * const mi_lttng_element_command_clear = "clear";
+
+/* Strings related to version command */
+const char * const mi_lttng_element_version = "version";
+const char * const mi_lttng_element_version_commit = "commit";
+const char * const mi_lttng_element_version_description = "description";
+const char * const mi_lttng_element_version_license = "license";
+const char * const mi_lttng_element_version_major = "major";
+const char * const mi_lttng_element_version_minor = "minor";
+const char * const mi_lttng_element_version_patch_level = "patchLevel";
+const char * const mi_lttng_element_version_str = "string";
+const char * const mi_lttng_element_version_web = "url";
+
+/* String related to a lttng_event_field */
+const char * const mi_lttng_element_event_field = "event_field";
+const char * const mi_lttng_element_event_fields = "event_fields";
+
+/* String related to lttng_event_perf_counter_ctx */
+const char * const mi_lttng_element_perf_counter_context = "perf";
+
+/* Strings related to pid */
+const char * const mi_lttng_element_pid_id = "id";
+
+/* Strings related to save command */
+const char * const mi_lttng_element_save = "save";
+
+/* Strings related to load command */
+const char * const mi_lttng_element_load = "load";
+const char * const mi_lttng_element_load_overrides = "overrides";
+const char * const mi_lttng_element_load_override_url = "url";
+
+/* General elements of mi_lttng */
+const char * const mi_lttng_element_empty = "";
+const char * const mi_lttng_element_id = "id";
+const char * const mi_lttng_element_nowrite = "nowrite";
+const char * const mi_lttng_element_success = "success";
+const char * const mi_lttng_element_type_enum = "ENUM";
+const char * const mi_lttng_element_type_float = "FLOAT";
+const char * const mi_lttng_element_type_integer = "INTEGER";
+const char * const mi_lttng_element_type_other = "OTHER";
+const char * const mi_lttng_element_type_string = "STRING";
+
+/* String related to loglevel */
+const char * const mi_lttng_loglevel_str_alert = "TRACE_ALERT";
+const char * const mi_lttng_loglevel_str_crit = "TRACE_CRIT";
+const char * const mi_lttng_loglevel_str_debug = "TRACE_DEBUG";
+const char * const mi_lttng_loglevel_str_debug_function = "TRACE_DEBUG_FUNCTION";
+const char * const mi_lttng_loglevel_str_debug_line = "TRACE_DEBUG_LINE";
+const char * const mi_lttng_loglevel_str_debug_module = "TRACE_DEBUG_MODULE";
+const char * const mi_lttng_loglevel_str_debug_process = "TRACE_DEBUG_PROCESS";
+const char * const mi_lttng_loglevel_str_debug_program = "TRACE_DEBUG_PROGRAM";
+const char * const mi_lttng_loglevel_str_debug_system = "TRACE_DEBUG_SYSTEM";
+const char * const mi_lttng_loglevel_str_debug_unit = "TRACE_DEBUG_UNIT";
+const char * const mi_lttng_loglevel_str_emerg = "TRACE_EMERG";
+const char * const mi_lttng_loglevel_str_err = "TRACE_ERR";
+const char * const mi_lttng_loglevel_str_info = "TRACE_INFO";
+const char * const mi_lttng_loglevel_str_notice = "TRACE_NOTICE";
+const char * const mi_lttng_loglevel_str_unknown = "UNKNOWN";
+const char * const mi_lttng_loglevel_str_warning = "TRACE_WARNING";
+
+/* String related to loglevel JUL */
+const char * const mi_lttng_loglevel_str_jul_all = "JUL_ALL";
+const char * const mi_lttng_loglevel_str_jul_config = "JUL_CONFIG";
+const char * const mi_lttng_loglevel_str_jul_fine = "JUL_FINE";
+const char * const mi_lttng_loglevel_str_jul_finer = "JUL_FINER";
+const char * const mi_lttng_loglevel_str_jul_finest = "JUL_FINEST";
+const char * const mi_lttng_loglevel_str_jul_info = "JUL_INFO";
+const char * const mi_lttng_loglevel_str_jul_off = "JUL_OFF";
+const char * const mi_lttng_loglevel_str_jul_severe = "JUL_SEVERE";
+const char * const mi_lttng_loglevel_str_jul_warning = "JUL_WARNING";
+
+/* String related to loglevel LOG4J */
+const char * const mi_lttng_loglevel_str_log4j_off = "LOG4J_OFF";
+const char * const mi_lttng_loglevel_str_log4j_fatal = "LOG4J_FATAL";
+const char * const mi_lttng_loglevel_str_log4j_error = "LOG4J_ERROR";
+const char * const mi_lttng_loglevel_str_log4j_warn = "LOG4J_WARN";
+const char * const mi_lttng_loglevel_str_log4j_info = "LOG4J_INFO";
+const char * const mi_lttng_loglevel_str_log4j_debug = "LOG4J_DEBUG";
+const char * const mi_lttng_loglevel_str_log4j_trace = "LOG4J_TRACE";
+const char * const mi_lttng_loglevel_str_log4j_all = "LOG4J_ALL";
+
+/* String related to loglevel Python */
+const char * const mi_lttng_loglevel_str_python_critical = "PYTHON_CRITICAL";
+const char * const mi_lttng_loglevel_str_python_error = "PYTHON_ERROR";
+const char * const mi_lttng_loglevel_str_python_warning = "PYTHON_WARNING";
+const char * const mi_lttng_loglevel_str_python_info = "PYTHON_INFO";
+const char * const mi_lttng_loglevel_str_python_debug = "PYTHON_DEBUG";
+const char * const mi_lttng_loglevel_str_python_notset = "PYTHON_NOTSET";
+
+/* String related to loglevel type */
+const char * const mi_lttng_loglevel_type_all = "ALL";
+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 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";
+const char * const mi_lttng_element_snapshot_max_size = "max_size";
+const char * const mi_lttng_element_snapshot_n_ptr = "n_ptr";
+const char * const mi_lttng_element_snapshot_session_name = "session_name";
+const char * const mi_lttng_element_snapshots = "snapshots";
+
+/* String related to track/untrack command */
+const char * const mi_lttng_element_track_untrack_all_wildcard = "*";
+
+const char * const mi_lttng_element_session_name = "session_name";
+
+/* String related to rotate command */
+const char * const mi_lttng_element_rotation = "rotation";
+const char * const mi_lttng_element_rotate_status = "status";
+const char * const mi_lttng_element_rotation_schedule = "rotation_schedule";
+const char * const mi_lttng_element_rotation_schedules = "rotation_schedules";
+const char * const mi_lttng_element_rotation_schedule_result = "rotation_schedule_result";
+const char * const mi_lttng_element_rotation_schedule_results = "rotation_schedule_results";
+const char * const mi_lttng_element_rotation_schedule_periodic = "periodic";
+const char * const mi_lttng_element_rotation_schedule_periodic_time_us = "time_us";
+const char * const mi_lttng_element_rotation_schedule_size_threshold = "size_threshold";
+const char * const mi_lttng_element_rotation_schedule_size_threshold_bytes = "bytes";
+const char * const mi_lttng_element_rotation_state = "state";
+const char * const mi_lttng_element_rotation_location = "location";
+const char * const mi_lttng_element_rotation_location_local = "local";
+const char * const mi_lttng_element_rotation_location_local_absolute_path = "absolute_path";
+const char * const mi_lttng_element_rotation_location_relay = "relay";
+const char * const mi_lttng_element_rotation_location_relay_host = "host";
+const char * const mi_lttng_element_rotation_location_relay_control_port = "control_port";
+const char * const mi_lttng_element_rotation_location_relay_data_port = "data_port";
+const char * const mi_lttng_element_rotation_location_relay_protocol = "protocol";
+const char * const mi_lttng_element_rotation_location_relay_relative_path = "relative_path";
+
+/* String related to enum lttng_rotation_state */
+const char * const mi_lttng_rotation_state_str_ongoing = "ONGOING";
+const char * const mi_lttng_rotation_state_str_completed = "COMPLETED";
+const char * const mi_lttng_rotation_state_str_expired = "EXPIRED";
+const char * const mi_lttng_rotation_state_str_error = "ERROR";
+
+/* String related to enum lttng_trace_archive_location_relay_protocol_type */
+const char * const mi_lttng_rotation_location_relay_protocol_str_tcp = "TCP";
+
+/* String related to rate_policy elements */
+const char *const mi_lttng_element_rate_policy = "rate_policy";
+const char *const mi_lttng_element_rate_policy_every_n =
+ "rate_policy_every_n";
+const char *const mi_lttng_element_rate_policy_once_after_n =
+ "rate_policy_once_after_n";
+
+const char *const mi_lttng_element_rate_policy_every_n_interval =
+ "interval";
+const char
+ *const mi_lttng_element_rate_policy_once_after_n_threshold =
+ "threshold";
+
+/* String related to action elements */
+const char *const mi_lttng_element_action = "action";
+const char *const mi_lttng_element_action_list = "action_list";
+const char *const mi_lttng_element_action_notify = "action_notify";
+const char *const mi_lttng_element_action_start_session =
+ "action_start_session";
+const char *const mi_lttng_element_action_stop_session =
+ "action_stop_session";
+const char *const mi_lttng_element_action_rotate_session =
+ "action_rotate_session";
+const char *const mi_lttng_element_action_snapshot_session =
+ "action_snapshot_session";
+const char *const mi_lttng_element_action_snapshot_session_output =
+ "output";
+
+/* String related to condition */
+const char *const mi_lttng_element_condition = "condition";
+const char *const mi_lttng_element_condition_buffer_usage_high =
+ "condition_buffer_usage_high";
+const char *const mi_lttng_element_condition_buffer_usage_low =
+ "condition_buffer_usage_low";
+const char *const mi_lttng_element_condition_event_rule_matches =
+ "condition_event_rule_matches";
+const char *const mi_lttng_element_condition_session_consumed_size =
+ "condition_session_consumed_size";
+const char *const mi_lttng_element_condition_session_rotation =
+ "condition_session_rotation";
+const char
+ *const mi_lttng_element_condition_session_rotation_completed =
+ "condition_session_rotation_completed";
+const char
+ *const mi_lttng_element_condition_session_rotation_ongoing =
+ "condition_session_rotation_ongoing";
+
+const char *const mi_lttng_element_condition_channel_name =
+ "channel_name";
+const char *const mi_lttng_element_condition_threshold_bytes =
+ "threshold_bytes";
+const char *const mi_lttng_element_condition_threshold_ratio =
+ "threshold_ratio";
+
+/* String related to capture descriptor */
+const char *const mi_lttng_element_capture_descriptor =
+ "capture_descriptor";
+const char *const mi_lttng_element_capture_descriptors =
+ "capture_descriptors";
+
+/* String related to event expression */
+const char *const mi_lttng_element_event_expr = "event_expr";
+const char *const mi_lttng_element_event_expr_payload_field =
+ "event_expr_payload_field";
+const char *const mi_lttng_element_event_expr_channel_context_field =
+ "event_expr_channel_context_field";
+const char
+ *const mi_lttng_element_event_expr_app_specific_context_field =
+ "event_expr_app_specific_context_field";
+const char *const mi_lttng_element_event_expr_array_field_element =
+ "event_expr_array_field_element";
+const char *const mi_lttng_element_event_expr_provider_name =
+ "provider_name";
+const char *const mi_lttng_element_event_expr_type_name =
+ "type_name";
+const char *const mi_lttng_element_event_expr_index = "index";
+
+/* String related to event rule */
+const char *const mi_lttng_element_event_rule = "event_rule";
+
+/* String related to lttng_event_rule_type */
+const char *const mi_lttng_element_event_rule_event_name =
+ "event_name";
+const char *const mi_lttng_element_event_rule_name_pattern =
+ "name_pattern";
+const char *const mi_lttng_element_event_rule_filter_expression =
+ "filter_expression";
+
+const char *const mi_lttng_element_event_rule_jul_logging =
+ "event_rule_jul_logging";
+const char *const mi_lttng_element_event_rule_kernel_kprobe =
+ "event_rule_kernel_kprobe";
+const char *const mi_lttng_element_event_rule_kernel_syscall =
+ "event_rule_kernel_syscall";
+const char *const mi_lttng_element_event_rule_kernel_tracepoint =
+ "event_rule_kernel_tracepoint";
+const char *const mi_lttng_element_event_rule_kernel_uprobe =
+ "event_rule_kernel_uprobe";
+const char *const mi_lttng_element_event_rule_log4j_logging =
+ "event_rule_log4j_logging";
+const char *const mi_lttng_element_event_rule_python_logging =
+ "event_rule_python_logging";
+const char *const mi_lttng_element_event_rule_user_tracepoint =
+ "event_rule_user_tracepoint";
+
+/* String related to lttng_event_rule_kernel_syscall. */
+const char *const
+ mi_lttng_element_event_rule_kernel_syscall_emission_site =
+ "emission_site";
+
+/* String related to enum lttng_event_rule_kernel_syscall_emission_site. */
+const char *const
+ mi_lttng_event_rule_kernel_syscall_emission_site_entry_exit =
+ "entry+exit";
+const char
+ *const mi_lttng_event_rule_kernel_syscall_emission_site_entry =
+ "entry";
+const char *const
+ mi_lttng_event_rule_kernel_syscall_emission_site_exit = "exit";
+
+/* String related to lttng_event_rule_user_tracepoint */
+const char *const
+ mi_lttng_element_event_rule_user_tracepoint_name_pattern_exclusions =
+ "name_pattern_exclusions";
+const char *const
+ mi_lttng_element_event_rule_user_tracepoint_name_pattern_exclusion =
+ "name_pattern_exclusion";
+
+/* String related to log level rule. */
+const char *const mi_lttng_element_log_level_rule =
+ "log_level_rule";
+const char *const mi_lttng_element_log_level_rule_exactly =
+ "log_level_rule_exactly";
+const char
+ *const mi_lttng_element_log_level_rule_at_least_as_severe_as =
+ "log_level_rule_at_least_as_severe_as";
+const char *const mi_lttng_element_log_level_rule_level = "level";
+
+/* String related to kernel probe location. */
+const char *const mi_lttng_element_kernel_probe_location =
+ "kernel_probe_location";
+const char
+ *const mi_lttng_element_kernel_probe_location_symbol_offset =
+ "kernel_probe_location_symbol_offset";
+const char *const
+ mi_lttng_element_kernel_probe_location_symbol_offset_name =
+ "name";
+const char *const
+ mi_lttng_element_kernel_probe_location_symbol_offset_offset =
+ "offset";
+
+const char *const mi_lttng_element_kernel_probe_location_address =
+ "kernel_probe_location_address";
+const char
+ *const mi_lttng_element_kernel_probe_location_address_address =
+ "address";
+
+/* String related to userspace probe location. */
+const char *const mi_lttng_element_userspace_probe_location =
+ "userspace_probe_location";
+const char
+ *const mi_lttng_element_userspace_probe_location_binary_path =
+ "binary_path";
+const char
+ *const mi_lttng_element_userspace_probe_location_function =
+ "userspace_probe_location_function";
+const char
+ *const mi_lttng_element_userspace_probe_location_function_name =
+ "name";
+const char
+ *const mi_lttng_element_userspace_probe_location_lookup_method =
+ "userspace_probe_location_lookup_method";
+const char *const
+ mi_lttng_element_userspace_probe_location_lookup_method_function_default =
+ "userspace_probe_location_lookup_method_function_default";
+const char *const
+ mi_lttng_element_userspace_probe_location_lookup_method_function_elf =
+ "userspace_probe_location_lookup_method_function_elf";
+const char *const
+ mi_lttng_element_userspace_probe_location_lookup_method_tracepoint_sdt =
+ "userspace_probe_location_lookup_method_tracepoint_sdt";
+const char
+ *const mi_lttng_element_userspace_probe_location_tracepoint =
+ "userspace_probe_location_tracepoint";
+const char *const
+ mi_lttng_element_userspace_probe_location_tracepoint_probe_name =
+ "probe_name";
+const char *const
+ mi_lttng_element_userspace_probe_location_tracepoint_provider_name =
+ "provider_name";
+
+/* String related to enum
+ * lttng_userspace_probe_location_function_instrumentation_type */
+const char *const
+ mi_lttng_element_userspace_probe_location_function_instrumentation_type =
+ "instrumentation_type";
+const char *const
+ mi_lttng_userspace_probe_location_function_instrumentation_type_entry =
+ "ENTRY";
+
+/* String related to trigger */
+const char *const mi_lttng_element_triggers = "triggers";
+const char *const mi_lttng_element_trigger = "trigger";
+const char *const mi_lttng_element_trigger_owner_uid = "owner_uid";
+
+/* String related to error_query. */
+const char *const mi_lttng_element_error_query_result =
+ "error_query_result";
+const char *const mi_lttng_element_error_query_result_counter =
+ "error_query_result_counter";
+const char *const
+ mi_lttng_element_error_query_result_counter_value = "value";
+const char *const mi_lttng_element_error_query_result_description =
+ "description";
+const char *const mi_lttng_element_error_query_result_name =
+ "name";
+const char *const mi_lttng_element_error_query_result_type =
+ "type";
+const char *const mi_lttng_element_error_query_results =
+ "error_query_results";
+
+/* String related to add-context command */
+const char * const mi_lttng_element_context_symbol = "symbol";
+
+/* Deprecated symbols preserved for ABI compatibility. */
+LTTNG_EXPORT const char *mi_lttng_context_type_perf_counter;
+LTTNG_EXPORT const char *mi_lttng_context_type_perf_cpu_counter;
+LTTNG_EXPORT const char *mi_lttng_context_type_perf_thread_counter;
+LTTNG_EXPORT const char *mi_lttng_element_track_untrack_pid_target;
+LTTNG_EXPORT const char *mi_lttng_element_track_untrack_targets;
+LTTNG_EXPORT const char *mi_lttng_element_calibrate;
+LTTNG_EXPORT const char *mi_lttng_element_calibrate_function;
+LTTNG_EXPORT const char *mi_lttng_element_command_calibrate;
+
+/* This is a merge of jul loglevel and regular loglevel
+ * Those should never overlap by definition
+ * (see struct lttng_event loglevel)
+ */
+const char *mi_lttng_loglevel_string(int value, enum lttng_domain_type domain)
+{
+ switch (domain) {
+ case LTTNG_DOMAIN_KERNEL:
+ case LTTNG_DOMAIN_UST:
+ switch (value) {
+ case -1:
+ return mi_lttng_element_empty;
+ case LTTNG_LOGLEVEL_EMERG:
+ return mi_lttng_loglevel_str_emerg;
+ case LTTNG_LOGLEVEL_ALERT:
+ return mi_lttng_loglevel_str_alert;
+ case LTTNG_LOGLEVEL_CRIT:
+ return mi_lttng_loglevel_str_crit;
+ case LTTNG_LOGLEVEL_ERR:
+ return mi_lttng_loglevel_str_err;
+ case LTTNG_LOGLEVEL_WARNING:
+ return mi_lttng_loglevel_str_warning;
+ case LTTNG_LOGLEVEL_NOTICE:
+ return mi_lttng_loglevel_str_notice;
+ case LTTNG_LOGLEVEL_INFO:
+ return mi_lttng_loglevel_str_info;
+ case LTTNG_LOGLEVEL_DEBUG_SYSTEM:
+ return mi_lttng_loglevel_str_debug_system;
+ case LTTNG_LOGLEVEL_DEBUG_PROGRAM:
+ return mi_lttng_loglevel_str_debug_program;
+ case LTTNG_LOGLEVEL_DEBUG_PROCESS:
+ return mi_lttng_loglevel_str_debug_process;
+ case LTTNG_LOGLEVEL_DEBUG_MODULE:
+ return mi_lttng_loglevel_str_debug_module;
+ case LTTNG_LOGLEVEL_DEBUG_UNIT:
+ return mi_lttng_loglevel_str_debug_unit;
+ case LTTNG_LOGLEVEL_DEBUG_FUNCTION:
+ return mi_lttng_loglevel_str_debug_function;
+ case LTTNG_LOGLEVEL_DEBUG_LINE:
+ return mi_lttng_loglevel_str_debug_line;
+ case LTTNG_LOGLEVEL_DEBUG:
+ return mi_lttng_loglevel_str_debug;
+ default:
+ return mi_lttng_loglevel_str_unknown;
+ }
+ break;
+ case LTTNG_DOMAIN_LOG4J:
+ switch (value) {
+ case -1:
+ return mi_lttng_element_empty;
+ case LTTNG_LOGLEVEL_LOG4J_OFF:
+ return mi_lttng_loglevel_str_log4j_off;
+ case LTTNG_LOGLEVEL_LOG4J_FATAL:
+ return mi_lttng_loglevel_str_log4j_fatal;
+ case LTTNG_LOGLEVEL_LOG4J_ERROR:
+ return mi_lttng_loglevel_str_log4j_error;
+ case LTTNG_LOGLEVEL_LOG4J_WARN:
+ return mi_lttng_loglevel_str_log4j_warn;
+ case LTTNG_LOGLEVEL_LOG4J_INFO:
+ return mi_lttng_loglevel_str_log4j_info;
+ case LTTNG_LOGLEVEL_LOG4J_DEBUG:
+ return mi_lttng_loglevel_str_log4j_debug;
+ case LTTNG_LOGLEVEL_LOG4J_TRACE:
+ return mi_lttng_loglevel_str_log4j_trace;
+ case LTTNG_LOGLEVEL_LOG4J_ALL:
+ return mi_lttng_loglevel_str_log4j_all;
+ default:
+ return mi_lttng_loglevel_str_unknown;
+ }
+ break;
+ case LTTNG_DOMAIN_JUL:
+ switch (value) {
+ case -1:
+ return mi_lttng_element_empty;
+ case LTTNG_LOGLEVEL_JUL_OFF:
+ return mi_lttng_loglevel_str_jul_off;
+ case LTTNG_LOGLEVEL_JUL_SEVERE:
+ return mi_lttng_loglevel_str_jul_severe;
+ case LTTNG_LOGLEVEL_JUL_WARNING:
+ return mi_lttng_loglevel_str_jul_warning;
+ case LTTNG_LOGLEVEL_JUL_INFO:
+ return mi_lttng_loglevel_str_jul_info;
+ case LTTNG_LOGLEVEL_JUL_CONFIG:
+ return mi_lttng_loglevel_str_jul_config;
+ case LTTNG_LOGLEVEL_JUL_FINE:
+ return mi_lttng_loglevel_str_jul_fine;
+ case LTTNG_LOGLEVEL_JUL_FINER:
+ return mi_lttng_loglevel_str_jul_finer;
+ case LTTNG_LOGLEVEL_JUL_FINEST:
+ return mi_lttng_loglevel_str_jul_finest;
+ case LTTNG_LOGLEVEL_JUL_ALL:
+ return mi_lttng_loglevel_str_jul_all;
+ default:
+ return mi_lttng_loglevel_str_unknown;
+ }
+ break;
+ case LTTNG_DOMAIN_PYTHON:
+ switch (value) {
+ case LTTNG_LOGLEVEL_PYTHON_CRITICAL:
+ return mi_lttng_loglevel_str_python_critical;
+ case LTTNG_LOGLEVEL_PYTHON_ERROR:
+ return mi_lttng_loglevel_str_python_error;
+ case LTTNG_LOGLEVEL_PYTHON_WARNING:
+ return mi_lttng_loglevel_str_python_warning;
+ case LTTNG_LOGLEVEL_PYTHON_INFO:
+ return mi_lttng_loglevel_str_python_info;
+ case LTTNG_LOGLEVEL_PYTHON_DEBUG:
+ return mi_lttng_loglevel_str_python_debug;
+ case LTTNG_LOGLEVEL_PYTHON_NOTSET:
+ return mi_lttng_loglevel_str_python_notset;
+ default:
+ return mi_lttng_loglevel_str_unknown;
+ }
+ break;
+ default:
+ return mi_lttng_loglevel_str_unknown;
+ }
+}
+
+const char *mi_lttng_logleveltype_string(enum lttng_loglevel_type value)
+{
+ switch (value) {
+ case LTTNG_EVENT_LOGLEVEL_ALL:
+ return mi_lttng_loglevel_type_all;
+ case LTTNG_EVENT_LOGLEVEL_RANGE:
+ return mi_lttng_loglevel_type_range;
+ case LTTNG_EVENT_LOGLEVEL_SINGLE:
+ return mi_lttng_loglevel_type_single;
+ default:
+ return mi_lttng_loglevel_type_unknown;
+ }
+}
+
+static
+const char *mi_lttng_eventtype_string(enum lttng_event_type value)
+{
+ switch (value) {
+ case LTTNG_EVENT_ALL:
+ return config_event_type_all;
+ case LTTNG_EVENT_TRACEPOINT:
+ 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:
+ return config_event_type_function_entry;
+ case LTTNG_EVENT_SYSCALL:
+ return config_event_type_syscall;
+ case LTTNG_EVENT_NOOP:
+ return config_event_type_noop;
+ default:
+ return mi_lttng_element_empty;
+ }
+}
+
+static
+const char *mi_lttng_event_contexttype_string(enum lttng_event_context_type val)
+{
+ switch (val) {
+ case LTTNG_EVENT_CONTEXT_PID:
+ return config_event_context_pid;
+ case LTTNG_EVENT_CONTEXT_PROCNAME:
+ return config_event_context_procname;
+ case LTTNG_EVENT_CONTEXT_PRIO:
+ return config_event_context_prio;
+ case LTTNG_EVENT_CONTEXT_NICE:
+ return config_event_context_nice;
+ case LTTNG_EVENT_CONTEXT_VPID:
+ return config_event_context_vpid;
+ case LTTNG_EVENT_CONTEXT_TID:
+ return config_event_context_tid;
+ case LTTNG_EVENT_CONTEXT_VTID:
+ return config_event_context_vtid;
+ case LTTNG_EVENT_CONTEXT_PPID:
+ return config_event_context_ppid;
+ case LTTNG_EVENT_CONTEXT_VPPID:
+ return config_event_context_vppid;
+ case LTTNG_EVENT_CONTEXT_PTHREAD_ID:
+ return config_event_context_pthread_id;
+ case LTTNG_EVENT_CONTEXT_HOSTNAME:
+ 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_TIME_NS:
+ return config_event_context_time_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;
+ }
+}
+
+const char *mi_lttng_eventfieldtype_string(enum lttng_event_field_type val)
+{
+ switch (val) {
+ case(LTTNG_EVENT_FIELD_INTEGER):
+ return mi_lttng_element_type_integer;
+ case(LTTNG_EVENT_FIELD_ENUM):
+ return mi_lttng_element_type_enum;
+ case(LTTNG_EVENT_FIELD_FLOAT):
+ return mi_lttng_element_type_float;
+ case(LTTNG_EVENT_FIELD_STRING):
+ return mi_lttng_element_type_string;
+ default:
+ return mi_lttng_element_type_other;
+ }
+}
+
+const char *mi_lttng_domaintype_string(enum lttng_domain_type value)
+{
+ switch (value) {
+ case LTTNG_DOMAIN_KERNEL:
+ return config_domain_type_kernel;
+ case LTTNG_DOMAIN_UST:
+ return config_domain_type_ust;
+ case LTTNG_DOMAIN_JUL:
+ return config_domain_type_jul;
+ case LTTNG_DOMAIN_LOG4J:
+ return config_domain_type_log4j;
+ case LTTNG_DOMAIN_PYTHON:
+ return config_domain_type_python;
+ default:
+ /* Should not have an unknown domain */
+ abort();
+ return NULL;
+ }
+}
+
+const char *mi_lttng_buffertype_string(enum lttng_buffer_type value)
+{
+ switch (value) {
+ case LTTNG_BUFFER_PER_PID:
+ return config_buffer_type_per_pid;
+ case LTTNG_BUFFER_PER_UID:
+ return config_buffer_type_per_uid;
+ case LTTNG_BUFFER_GLOBAL:
+ return config_buffer_type_global;
+ default:
+ /* Should not have an unknow buffer type */
+ abort();
+ return NULL;
+ }
+}
+
+const char *mi_lttng_rotation_state_string(enum lttng_rotation_state value)
+{
+ 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. */
+ abort();
+ return NULL;
+ }
+}
+
+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:
+ /* Should not have an unknown relay protocol. */
+ abort();
+ return NULL;
+ }
+}
+
+struct mi_writer *mi_lttng_writer_create(int fd_output, int mi_output_type)
+{
+ struct mi_writer *mi_writer;
+
+ mi_writer = (struct mi_writer *) zmalloc(sizeof(struct mi_writer));
+ if (!mi_writer) {
+ PERROR("zmalloc mi_writer_create");
+ goto end;
+ }
+ if (mi_output_type == LTTNG_MI_XML) {
+ mi_writer->writer = config_writer_create(fd_output, 0);
+ if (!mi_writer->writer) {
+ goto err_destroy;
+ }
+ mi_writer->type = LTTNG_MI_XML;
+ } else {
+ goto err_destroy;
+ }
+
+end:
+ return mi_writer;
+
+err_destroy:
+ free(mi_writer);
+ return NULL;
+}
+
+int mi_lttng_writer_destroy(struct mi_writer *writer)
+{
+ int ret;
+
+ if (!writer) {
+ ret = -EINVAL;
+ goto end;
+ }
+
+ ret = config_writer_destroy(writer->writer);
+ if (ret < 0) {
+ goto end;
+ }
+
+ free(writer);
+end:
+ return ret;
+}
+
+int mi_lttng_writer_command_open(struct mi_writer *writer, const char *command)
+{
+ int ret;
+
+ /*
+ * A command is always the MI's root node, it must declare the current
+ * namespace and schema URIs and the schema's version.
+ */
+ ret = config_writer_open_element(writer->writer,
+ mi_lttng_element_command);
+ if (ret) {
+ goto end;
+ }
+
+ ret = config_writer_write_attribute(writer->writer,
+ mi_lttng_xmlns, DEFAULT_LTTNG_MI_NAMESPACE);
+ if (ret) {
+ goto end;
+ }
+
+ ret = config_writer_write_attribute(writer->writer,
+ mi_lttng_xmlns_xsi, mi_lttng_w3_schema_uri);
+ if (ret) {
+ goto end;
+ }
+
+ ret = config_writer_write_attribute(writer->writer,
+ mi_lttng_schema_location,
+ mi_lttng_schema_location_uri);
+ if (ret) {
+ goto end;
+ }
+
+ ret = config_writer_write_attribute(writer->writer,
+ mi_lttng_schema_version,
+ mi_lttng_schema_version_value);
+ if (ret) {
+ goto end;
+ }
+
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_command_name, command);
+end:
+ return ret;
+}
+
+int mi_lttng_writer_command_close(struct mi_writer *writer)
+{
+ return mi_lttng_writer_close_element(writer);
+}
+
+int mi_lttng_writer_open_element(struct mi_writer *writer,
+ const char *element_name)
+{
+ return config_writer_open_element(writer->writer, element_name);
+}
+
+int mi_lttng_writer_close_element(struct mi_writer *writer)
+{
+ return config_writer_close_element(writer->writer);
+}
+
+int mi_lttng_close_multi_element(struct mi_writer *writer,
+ unsigned int nb_element)
+{
+ int ret, i;
+
+ if (nb_element < 1) {
+ ret = 0;
+ goto end;
+ }
+ for (i = 0; i < nb_element; i++) {
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto end;
+ }
+ }
+end:
+ return ret;
+}
+
+int mi_lttng_writer_write_element_unsigned_int(struct mi_writer *writer,
+ const char *element_name, uint64_t value)
+{
+ return config_writer_write_element_unsigned_int(writer->writer,
+ element_name, value);
+}
+
+int mi_lttng_writer_write_element_signed_int(struct mi_writer *writer,
+ const char *element_name, int64_t value)
+{
+ return config_writer_write_element_signed_int(writer->writer,
+ element_name, value);
+}
+
+int mi_lttng_writer_write_element_bool(struct mi_writer *writer,
+ const char *element_name, int value)
+{
+ return config_writer_write_element_bool(writer->writer,
+ element_name, value);
+}
+
+int mi_lttng_writer_write_element_string(struct mi_writer *writer,
+ const char *element_name, const char *value)
+{
+ return config_writer_write_element_string(writer->writer,
+ element_name, value);
+}
+
+int mi_lttng_writer_write_element_double(struct mi_writer *writer,
+ const char *element_name,
+ double value)
+{
+ return config_writer_write_element_double(
+ writer->writer, element_name, value);
+}
+
+int mi_lttng_version(struct mi_writer *writer, struct mi_lttng_version_data *version,
+ const char *lttng_description, const char *lttng_license)
+{
+ int ret;
+
+ /* Open version */
+ ret = mi_lttng_writer_open_element(writer, mi_lttng_element_version);
+ if (ret) {
+ goto end;
+ }
+
+ /* Version string (contain info like rc etc.) */
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_version_str, version->version);
+ if (ret) {
+ goto end;
+ }
+
+ /* Major version number */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ mi_lttng_element_version_major, version->version_major);
+ if (ret) {
+ goto end;
+ }
+
+ /* Minor version number */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ mi_lttng_element_version_minor, version->version_minor);
+ if (ret) {
+ goto end;
+ }
+
+ /* Commit version number */
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_version_commit, version->version_commit);
+ if (ret) {
+ goto end;
+ }
+
+ /* Patch number */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ mi_lttng_element_version_patch_level, version->version_patchlevel);
+ if (ret) {
+ goto end;
+ }
+
+ /* Name of the version */
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_name, version->version_name);
+ if (ret) {
+ goto end;
+ }
+
+ /* Description mostly related to beer... */
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_version_description, lttng_description);
+ if (ret) {
+ goto end;
+ }
+
+ /* url */
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_version_web, version->package_url);
+ if (ret) {
+ goto end;
+ }
+
+ /* License: free as in free beer...no...*speech* */
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_version_license, lttng_license);
+ if (ret) {
+ goto end;
+ }
+
+ /* Close version element */
+ ret = mi_lttng_writer_close_element(writer);
+
+end:
+ return ret;
+}
+
+int mi_lttng_sessions_open(struct mi_writer *writer)
+{
+ return mi_lttng_writer_open_element(writer, config_element_sessions);
+}
+
+int mi_lttng_session(struct mi_writer *writer,
+ struct lttng_session *session, int is_open)
+{
+ int ret;
+
+ LTTNG_ASSERT(session);
+
+ /* Open sessions element */
+ ret = mi_lttng_writer_open_element(writer,
+ config_element_session);
+ if (ret) {
+ goto end;
+ }
+
+ /* Name of the session */
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_name, session->name);
+ if (ret) {
+ goto end;
+ }
+
+ /* Path */
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_path, session->path);
+ if (ret) {
+ goto end;
+ }
+
+ /* Enabled ? */
+ ret = mi_lttng_writer_write_element_bool(writer,
+ config_element_enabled, session->enabled);
+ if (ret) {
+ goto end;
+ }
+
+ /* Snapshot mode */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ config_element_snapshot_mode, session->snapshot_mode);
+ if (ret) {
+ goto end;
+ }
+
+ /* Live timer interval in usec */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ config_element_live_timer_interval,
+ session->live_timer_interval);
+ if (ret) {
+ goto end;
+ }
+
+ if (!is_open) {
+ /* Closing session element */
+ ret = mi_lttng_writer_close_element(writer);
+ }
+end:
+ return ret;
+
+}
+
+int mi_lttng_domains_open(struct mi_writer *writer)
+{
+ return mi_lttng_writer_open_element(writer, config_element_domains);
+}
+
+int mi_lttng_domain(struct mi_writer *writer,
+ struct lttng_domain *domain, int is_open)
+{
+ int ret = 0;
+ const char *str_domain;
+ const char *str_buffer;
+
+ LTTNG_ASSERT(domain);
+
+ /* Open domain element */
+ ret = mi_lttng_writer_open_element(writer, config_element_domain);
+ if (ret) {
+ goto end;
+ }
+
+ /* Domain Type */
+ str_domain = mi_lttng_domaintype_string(domain->type);
+ ret = mi_lttng_writer_write_element_string(writer, config_element_type,
+ str_domain);
+ if (ret) {
+ goto end;
+ }
+
+ /* Buffer Type */
+ str_buffer= mi_lttng_buffertype_string(domain->buf_type);
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_buffer_type, str_buffer);
+ if (ret) {
+ goto end;
+ }
+
+ /* TODO: union attr
+ * This union is not currently used and was added for
+ * future ust domain support.
+ * Date: 25-06-2014
+ * */
+
+ if (!is_open) {
+ /* Closing domain element */
+ ret = mi_lttng_writer_close_element(writer);
+ }
+
+end:
+ return ret;
+
+}
+
+int mi_lttng_channels_open(struct mi_writer *writer)
+{
+ return mi_lttng_writer_open_element(writer, config_element_channels);
+}
+
+int mi_lttng_channel(struct mi_writer *writer,
+ struct lttng_channel *channel, int is_open)
+{
+ int ret = 0;
+
+ LTTNG_ASSERT(channel);
+
+ /* Opening channel element */
+ ret = mi_lttng_writer_open_element(writer, config_element_channel);
+ if (ret) {
+ goto end;
+ }
+
+ /* Name */
+ ret = mi_lttng_writer_write_element_string(writer, config_element_name,
+ channel->name);
+ if (ret) {
+ goto end;
+ }
+
+ /* Enabled ? */
+ ret = mi_lttng_writer_write_element_bool(writer,
+ config_element_enabled, channel->enabled);
+ if (ret) {
+ goto end;
+ }
+
+ /* Attribute */
+ ret = mi_lttng_channel_attr(writer, &channel->attr);
+ if (ret) {
+ goto end;
+ }
+
+ if (!is_open) {
+ /* Closing channel element */
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto end;
+ }
+ }
+end:
+ return ret;
+}
+
+int mi_lttng_channel_attr(struct mi_writer *writer,
+ struct lttng_channel_attr *attr)
+{
+ int ret = 0;
+ struct lttng_channel *chan = caa_container_of(attr,
+ struct lttng_channel, attr);
+ uint64_t discarded_events, lost_packets, monitor_timer_interval;
+ int64_t blocking_timeout;
+
+ LTTNG_ASSERT(attr);
+
+ ret = lttng_channel_get_discarded_event_count(chan, &discarded_events);
+ if (ret) {
+ goto end;
+ }
+
+ ret = lttng_channel_get_lost_packet_count(chan, &lost_packets);
+ if (ret) {
+ 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) {
+ goto end;
+ }
+
+ /* Overwrite */
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_overwrite_mode,
+ attr->overwrite ? config_overwrite_mode_overwrite :
+ config_overwrite_mode_discard);
+ if (ret) {
+ goto end;
+ }
+
+ /* Sub buffer size in byte */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ config_element_subbuf_size, attr->subbuf_size);
+ if (ret) {
+ goto end;
+ }
+
+ /* Number of subbuffer (power of two) */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ config_element_num_subbuf,
+ attr->num_subbuf);
+ if (ret) {
+ goto end;
+ }
+
+ /* Switch timer interval in usec */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ config_element_switch_timer_interval,
+ attr->switch_timer_interval);
+ if (ret) {
+ goto end;
+ }
+
+ /* Read timer interval in usec */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ config_element_read_timer_interval,
+ attr->read_timer_interval);
+ if (ret) {
+ 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,
+ attr->output == LTTNG_EVENT_SPLICE ?
+ config_output_type_splice : config_output_type_mmap);
+ if (ret) {
+ goto end;
+ }
+
+ /* Tracefile size in bytes */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ config_element_tracefile_size, attr->tracefile_size);
+ if (ret) {
+ goto end;
+ }
+
+ /* Count of tracefiles */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ config_element_tracefile_count,
+ attr->tracefile_count);
+ if (ret) {
+ goto end;
+ }
+
+ /* Live timer interval in usec*/
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ config_element_live_timer_interval,
+ attr->live_timer_interval);
+ if (ret) {
+ goto end;
+ }
+
+ /* Discarded events */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ config_element_discarded_events,
+ discarded_events);
+ if (ret) {
+ goto end;
+ }
+
+ /* Lost packets */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ config_element_lost_packets,
+ lost_packets);
+ if (ret) {
+ goto end;
+ }
+
+ /* Closing attributes */
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto end;
+ }
+end:
+ return ret;
+
+}
+
+int mi_lttng_event_common_attributes(struct mi_writer *writer,
+ struct lttng_event *event)
+{
+ int ret;
+ const char *filter_expression;
+
+ /* Open event element */
+ ret = mi_lttng_writer_open_element(writer, config_element_event);
+ if (ret) {
+ goto end;
+ }
+
+ /* Event name */
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_name, event->name);
+ if (ret) {
+ goto end;
+ }
+
+ /* Event type */
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_type, mi_lttng_eventtype_string(event->type));
+ if (ret) {
+ goto end;
+ }
+
+ /* Is event enabled */
+ ret = mi_lttng_writer_write_element_bool(writer,
+ config_element_enabled, event->enabled);
+ if (ret) {
+ goto end;
+ }
+
+ /* Event filter expression */
+ ret = lttng_event_get_filter_expression(event, &filter_expression);
+ if (ret) {
+ goto end;
+ }
+
+ if (filter_expression) {
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_filter_expression,
+ filter_expression);
+ if (ret) {
+ goto end;
+ }
+ }
+
+end:
+ return ret;
+}
+
+static int write_event_exclusions(struct mi_writer *writer,
+ struct lttng_event *event)
+{
+ int i;
+ int ret;
+ int exclusion_count;
+
+ /* Open event exclusions */
+ ret = mi_lttng_writer_open_element(writer, config_element_exclusions);
+ if (ret) {
+ goto end;
+ }
+
+ exclusion_count = lttng_event_get_exclusion_name_count(event);
+ if (exclusion_count < 0) {
+ ret = exclusion_count;
+ goto end;
+ }
+
+ for (i = 0; i < exclusion_count; i++) {
+ const char *name;
+
+ ret = lttng_event_get_exclusion_name(event, i, &name);
+ if (ret) {
+ /* Close exclusions */
+ mi_lttng_writer_close_element(writer);
+ goto end;
+ }
+
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_exclusion, name);
+ if (ret) {
+ /* Close exclusions */
+ mi_lttng_writer_close_element(writer);
+ goto end;
+ }
+ }
+
+ /* Close exclusions */
+ ret = mi_lttng_writer_close_element(writer);
+
+end:
+ return ret;
+}
+
+int mi_lttng_event_tracepoint_loglevel(struct mi_writer *writer,
+ struct lttng_event *event, enum lttng_domain_type domain)
+{
+ int ret;
+
+ /* Event loglevel */
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_loglevel,
+ mi_lttng_loglevel_string(event->loglevel, domain));
+ if (ret) {
+ goto end;
+ }
+
+ /* Log level type */
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_loglevel_type,
+ mi_lttng_logleveltype_string(event->loglevel_type));
+ if (ret) {
+ goto end;
+ }
+
+ /* Event exclusions */
+ ret = write_event_exclusions(writer, event);
+
+end:
+ return ret;
+}
+
+int mi_lttng_event_tracepoint_no_loglevel(struct mi_writer *writer,
+ struct lttng_event *event)
+{
+ /* event exclusion filter */
+ return write_event_exclusions(writer, event);
+}
+
+int mi_lttng_event_function_probe(struct mi_writer *writer,
+ struct lttng_event *event)
+{
+ int ret;
+
+ ret = mi_lttng_writer_open_element(writer, config_element_attributes);
+ if (ret) {
+ goto end;
+ }
+
+ ret = mi_lttng_writer_open_element(writer, config_element_probe_attributes);
+ if (ret) {
+ goto end;
+ }
+
+ if (event->attr.probe.addr != 0) {
+ /* event probe address */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ config_element_address, event->attr.probe.addr);
+ if (ret) {
+ goto end;
+ }
+ } else {
+ /* event probe offset */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ config_element_offset, event->attr.probe.offset);
+ if (ret) {
+ goto end;
+ }
+
+ /* event probe symbol_name */
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_symbol_name, event->attr.probe.symbol_name);
+ if (ret) {
+ goto end;
+ }
+ }
+
+ /* Close probe_attributes and attributes */
+ ret = mi_lttng_close_multi_element(writer, 2);
+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;
+}
+
+int mi_lttng_event_function_entry(struct mi_writer *writer,
+ struct lttng_event *event)
+{
+ int ret;
+
+ ret = mi_lttng_writer_open_element(writer, config_element_attributes);
+ if (ret) {
+ goto end;
+ }
+
+ ret = mi_lttng_writer_open_element(writer, config_element_probe_attributes);
+ if (ret) {
+ goto end;
+ }
+
+ /* event probe symbol_name */
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_symbol_name, event->attr.ftrace.symbol_name);
+ if (ret) {
+ goto end;
+ }
+
+ /* Close function_attributes and attributes */
+ ret = mi_lttng_close_multi_element(writer, 2);
+end:
+ return ret;
+}
+
+int mi_lttng_events_open(struct mi_writer *writer)
+{
+ return mi_lttng_writer_open_element(writer, config_element_events);
+}
+
+int mi_lttng_event(struct mi_writer *writer,
+ struct lttng_event *event, int is_open, enum lttng_domain_type domain)
+{
+ int ret;
+
+ ret = mi_lttng_event_common_attributes(writer, event);
+ if (ret) {
+ goto end;
+ }
+
+ switch (event->type) {
+ case LTTNG_EVENT_TRACEPOINT:
+ {
+ if (event->loglevel != -1) {
+ ret = mi_lttng_event_tracepoint_loglevel(writer, event, domain);
+ } else {
+ ret = mi_lttng_event_tracepoint_no_loglevel(writer, event);
+ }
+ break;
+ }
+ case LTTNG_EVENT_FUNCTION:
+ /* Fallthrough */
+ case LTTNG_EVENT_PROBE:
+ ret = mi_lttng_event_function_probe(writer, event);
+ break;
+ 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);
+ }
+
+end:
+ return ret;
+}
+
+int mi_lttng_trackers_open(struct mi_writer *writer)
+{
+ return mi_lttng_writer_open_element(
+ writer, config_element_process_attr_trackers);
+}
+
+static int get_tracker_elements(enum lttng_process_attr process_attr,
+ const char **element_process_attr_tracker,
+ const char **element_process_attr_value)
+{
+ int ret = 0;
+
+ switch (process_attr) {
+ case LTTNG_PROCESS_ATTR_PROCESS_ID:
+ *element_process_attr_tracker =
+ config_element_process_attr_tracker_pid;
+ *element_process_attr_value =
+ config_element_process_attr_pid_value;
+ break;
+ case LTTNG_PROCESS_ATTR_VIRTUAL_PROCESS_ID:
+ *element_process_attr_tracker =
+ config_element_process_attr_tracker_vpid;
+ *element_process_attr_value =
+ config_element_process_attr_vpid_value;
+ break;
+ case LTTNG_PROCESS_ATTR_USER_ID:
+ *element_process_attr_tracker =
+ config_element_process_attr_tracker_uid;
+ *element_process_attr_value =
+ config_element_process_attr_uid_value;
+ break;
+ case LTTNG_PROCESS_ATTR_VIRTUAL_USER_ID:
+ *element_process_attr_tracker =
+ config_element_process_attr_tracker_vuid;
+ *element_process_attr_value =
+ config_element_process_attr_vuid_value;
+ break;
+ case LTTNG_PROCESS_ATTR_GROUP_ID:
+ *element_process_attr_tracker =
+ config_element_process_attr_tracker_gid;
+ *element_process_attr_value =
+ config_element_process_attr_gid_value;
+ break;
+ case LTTNG_PROCESS_ATTR_VIRTUAL_GROUP_ID:
+ *element_process_attr_tracker =
+ config_element_process_attr_tracker_vgid;
+ *element_process_attr_value =
+ config_element_process_attr_vgid_value;
+ break;
+ default:
+ ret = LTTNG_ERR_SAVE_IO_FAIL;
+ }
+ return ret;
+}
+
+int mi_lttng_process_attribute_tracker_open(
+ struct mi_writer *writer, enum lttng_process_attr process_attr)
+{
+ int ret;
+ const char *element_tracker, *element_value;
+
+ ret = get_tracker_elements(
+ process_attr, &element_tracker, &element_value);
+ if (ret) {
+ return ret;
+ }
+
+ /* Open process attribute tracker element */
+ ret = mi_lttng_writer_open_element(writer, element_tracker);
+ if (ret) {
+ goto end;
+ }
+
+ /* Open values element */
+ ret = mi_lttng_process_attr_values_open(writer);
+end:
+ return ret;
+}
+
+int mi_lttng_pids_open(struct mi_writer *writer)
+{
+ return mi_lttng_writer_open_element(writer, config_element_pids);
+}
+
+/*
+ * TODO: move the listing of pid for user agent to process semantic on
+ * mi api bump. The use of process element break the mi api.
+ */
+int mi_lttng_pid(struct mi_writer *writer,
+ pid_t pid,
+ const char *name,
+ int is_open)
+{
+ int ret;
+
+ /* Open pid process */
+ ret = mi_lttng_writer_open_element(writer, config_element_pid);
+ if (ret) {
+ goto end;
+ }
+
+ /* Writing pid number */
+ ret = mi_lttng_writer_write_element_signed_int(writer,
+ mi_lttng_element_pid_id, (int)pid);
+ if (ret) {
+ goto end;
+ }
+
+ /* Writing name of the process */
+ if (name) {
+ ret = mi_lttng_writer_write_element_string(writer, config_element_name,
+ name);
+ if (ret) {
+ goto end;
+ }
+ }
+
+ if (!is_open) {
+ /* Closing Pid */
+ ret = mi_lttng_writer_close_element(writer);
+ }
+
+end:
+ return ret;
+}
+
+int mi_lttng_process_attr_values_open(struct mi_writer *writer)
+{
+ return mi_lttng_writer_open_element(
+ writer, config_element_process_attr_values);
+}
+
+int mi_lttng_all_process_attribute_value(struct mi_writer *writer,
+ enum lttng_process_attr process_attr,
+ bool is_open)
+{
+ int ret;
+ const char *element_id_tracker, *element_target_id;
+
+ ret = get_tracker_elements(
+ process_attr, &element_id_tracker, &element_target_id);
+ if (ret) {
+ return ret;
+ }
+
+ ret = mi_lttng_writer_open_element(writer, element_target_id);
+ if (ret) {
+ goto end;
+ }
+
+ ret = mi_lttng_writer_open_element(writer, config_element_type);
+ if (ret) {
+ goto end;
+ }
+
+ ret = mi_lttng_writer_write_element_bool(writer, config_element_all, 1);
+ if (ret) {
+ goto end;
+ }
+
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto end;
+ }
+
+ if (!is_open) {
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto end;
+ }
+ }
+end:
+ return ret;
+}
+
+int mi_lttng_integral_process_attribute_value(struct mi_writer *writer,
+ enum lttng_process_attr process_attr,
+ int64_t value,
+ bool is_open)
+{
+ int ret;
+ const char *element_id_tracker, *element_target_id;
+
+ ret = get_tracker_elements(
+ process_attr, &element_id_tracker, &element_target_id);
+ if (ret) {
+ return ret;
+ }
+
+ ret = mi_lttng_writer_open_element(writer, element_target_id);
+ if (ret) {
+ goto end;
+ }
+
+ ret = mi_lttng_writer_open_element(writer, config_element_type);
+ if (ret) {
+ goto end;
+ }
+
+ ret = mi_lttng_writer_write_element_signed_int(
+ writer, config_element_process_attr_id, value);
+ if (ret) {
+ goto end;
+ }
+
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto end;
+ }
+
+ if (!is_open) {
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto end;
+ }
+ }
+
+end:
+ return ret;
+}
+
+int mi_lttng_string_process_attribute_value(struct mi_writer *writer,
+ enum lttng_process_attr process_attr,
+ const char *value,
+ bool is_open)
+
+{
+ int ret;
+ const char *element_id_tracker, *element_target_id;
+
+ ret = get_tracker_elements(
+ process_attr, &element_id_tracker, &element_target_id);
+ if (ret) {
+ return ret;
+ }
+
+ ret = mi_lttng_writer_open_element(writer, element_target_id);
+ if (ret) {
+ goto end;
+ }
+
+ ret = mi_lttng_writer_open_element(writer, config_element_type);
+ if (ret) {
+ goto end;
+ }
+
+ ret = mi_lttng_writer_write_element_string(
+ writer, config_element_name, value);
+ if (ret) {
+ goto end;
+ }
+
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto end;
+ }
+
+ if (!is_open) {
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto end;
+ }
+ }
+
+end:
+ return ret;
+}
+
+int mi_lttng_event_fields_open(struct mi_writer *writer)
+{
+ return mi_lttng_writer_open_element(writer, mi_lttng_element_event_fields);
+}
+
+int mi_lttng_event_field(struct mi_writer *writer,
+ struct lttng_event_field *field)
+{
+ int ret;
+
+ if (!field->field_name[0]) {
+ ret = 0;
+ goto end;
+ }
+
+ /* Open field */
+ ret = mi_lttng_writer_open_element(writer, mi_lttng_element_event_field);
+ if (ret) {
+ goto end;
+ }
+
+ if (!field->field_name[0]) {
+ goto close;
+ }
+
+ /* Name */
+ ret = mi_lttng_writer_write_element_string(writer, config_element_name,
+ field->field_name);
+ if (ret) {
+ goto end;
+ }
+
+ /* Type */
+ ret = mi_lttng_writer_write_element_string(writer, config_element_type,
+ mi_lttng_eventfieldtype_string(field->type));
+ if (ret) {
+ goto end;
+ }
+
+ /* nowrite */
+ ret = mi_lttng_writer_write_element_signed_int(writer,
+ mi_lttng_element_nowrite, field->nowrite);
+ if (ret) {
+ goto end;
+ }
+
+close:
+ /* Close field element */
+ ret = mi_lttng_writer_close_element(writer);
+
+end:
+ return ret;
+}
+
+int mi_lttng_perf_counter_context(struct mi_writer *writer,
+ struct lttng_event_perf_counter_ctx *perf_context)
+{
+ int ret;
+
+ /* Open perf_counter_context */
+ ret = mi_lttng_writer_open_element(writer,
+ mi_lttng_element_perf_counter_context);
+ if (ret) {
+ goto end;
+ }
+
+ /* Type */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ config_element_type, perf_context->type);
+ if (ret) {
+ goto end;
+ }
+
+ /* Config */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ config_element_config, perf_context->config);
+ if (ret) {
+ goto end;
+ }
+
+ /* Name of the perf counter */
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_name, perf_context->name);
+ if (ret) {
+ goto end;
+ }
+
+ /* Close perf_counter_context */
+ ret = mi_lttng_writer_close_element(writer);
+end:
+ return ret;
+}
+
+static
+int mi_lttng_app_context(struct mi_writer *writer,
+ const char *provider_name, const char *ctx_name)
+{
+ int ret;
+
+ /* Open app */
+ ret = mi_lttng_writer_open_element(writer,
+ config_element_context_app);
+ if (ret) {
+ goto end;
+ }
+
+ /* provider_name */
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_context_app_provider_name,
+ provider_name);
+ if (ret) {
+ goto end;
+ }
+
+ /* ctx_name */
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_context_app_ctx_name, ctx_name);
+ if (ret) {
+ goto end;
+ }
+
+ /* Close app */
+ ret = mi_lttng_writer_close_element(writer);
+end:
+ return ret;
+}
+
+int mi_lttng_context(struct mi_writer *writer,
+ struct lttng_event_context *context, int is_open)
+{
+ int ret;
+
+ /* Open context */
+ ret = mi_lttng_writer_open_element(writer , config_element_context);
+ if (ret) {
+ goto end;
+ }
+
+ /* Special case for PERF_*_COUNTER
+ * print the lttng_event_perf_counter_ctx*/
+ switch (context->ctx) {
+ case LTTNG_EVENT_CONTEXT_PERF_COUNTER:
+ case LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER:
+ case LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER:
+ {
+ struct lttng_event_perf_counter_ctx *perf_context =
+ &context->u.perf_counter;
+ ret = mi_lttng_perf_counter_context(writer, perf_context);
+ if (ret) {
+ goto end;
+ }
+ break;
+ }
+ case LTTNG_EVENT_CONTEXT_APP_CONTEXT:
+ {
+ ret = mi_lttng_app_context(writer,
+ context->u.app_ctx.provider_name,
+ context->u.app_ctx.ctx_name);
+ if (ret) {
+ goto end;
+ }
+ break;
+ }
+ default:
+ {
+ const char *type_string = mi_lttng_event_contexttype_string(
+ context->ctx);
+ if (!type_string) {
+ ret = -LTTNG_ERR_INVALID;
+ goto end;
+ }
+
+ /* Print context type */
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_type, type_string);
+ break;
+ }
+ }
+
+ /* Close context */
+ if (!is_open) {
+ ret = mi_lttng_writer_close_element(writer);
+ }
+
+end:
+ return ret;
+}
+
+int mi_lttng_snapshot_output_session_name(struct mi_writer *writer,
+ const char *session_name)
+{
+ int ret;
+
+ /* Open session element */
+ ret = mi_lttng_writer_open_element(writer, config_element_session);
+ if (ret) {
+ goto end;
+ }
+
+ /* Snapshot output list for current session name */
+ ret = mi_lttng_writer_write_element_string(writer, config_element_name,
+ session_name);
+ if (ret) {
+ goto end;
+ }
+
+ /* Open element snapshots (sequence one snapshot) */
+ ret = mi_lttng_writer_open_element(writer, mi_lttng_element_snapshots);
+ if (ret) {
+ goto end;
+ }
+
+end:
+ return ret;
+}
+
+int mi_lttng_snapshot_list_output(struct mi_writer *writer,
+ const struct lttng_snapshot_output *output)
+{
+ int ret;
+
+ /* Open element snapshot output */
+ ret = mi_lttng_writer_open_element(writer,
+ mi_lttng_element_command_snapshot);
+ if (ret) {
+ goto end;
+ }
+
+ /* ID of the snapshot output */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ mi_lttng_element_id, output->id);
+ if (ret) {
+ goto end;
+ }
+
+ /* Name of the output */
+ ret = mi_lttng_writer_write_element_string(writer, config_element_name,
+ output->name);
+ if (ret) {
+ goto end;
+ }
+
+ /* Destination of the output (ctrl_url)*/
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_snapshot_ctrl_url, output->ctrl_url);
+ if (ret) {
+ goto end;
+ }
+
+ /* Destination of the output (data_url) */
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_snapshot_data_url, output->data_url);
+ if (ret) {
+ goto end;
+ }
+
+ /* total size of all stream combined */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ mi_lttng_element_snapshot_max_size, output->max_size);
+ if (ret) {
+ goto end;
+ }
+
+ /* Close snapshot output element */
+ ret = mi_lttng_writer_close_element(writer);
+
+end:
+ return ret;
+}
+
+int mi_lttng_snapshot_del_output(struct mi_writer *writer, int id,
+ const char *name, const char *current_session_name)
+{
+ int ret;
+
+ /* Open element del_snapshot */
+ ret = mi_lttng_writer_open_element(writer,
+ mi_lttng_element_command_snapshot);
+ if (ret) {
+ goto end;
+ }
+
+
+ if (id != UINT32_MAX) {
+ /* "Snapshot output "id" successfully deleted
+ * for "current_session_name"
+ * ID of the snapshot output
+ */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ mi_lttng_element_id, id);
+ if (ret) {
+ goto end;
+ }
+ } else {
+ /* "Snapshot output "name" successfully deleted
+ * for session "current_session_name"
+ * Name of the output
+ */
+ ret = mi_lttng_writer_write_element_string(writer, config_element_name,
+ name);
+ if (ret) {
+ goto end;
+ }
+ }
+
+ /* Snapshot was deleted for session "current_session_name"*/
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_snapshot_session_name,
+ current_session_name);
+ if (ret) {
+ goto end;
+ }
+
+ /* Close snapshot element */
+ ret = mi_lttng_writer_close_element(writer);
+
+end:
+ return ret;
+}
+
+int mi_lttng_snapshot_add_output(struct mi_writer *writer,
+ const char *current_session_name, const char *n_ptr,
+ struct lttng_snapshot_output *output)
+{
+ int ret;
+
+ /* Open element snapshot */
+ ret = mi_lttng_writer_open_element(writer,
+ mi_lttng_element_command_snapshot);
+ if (ret) {
+ goto end;
+ }
+
+ /* Snapshot output id */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ mi_lttng_element_id, output->id);
+ if (ret) {
+ goto end;
+ }
+
+ /* Snapshot output names */
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_name, n_ptr);
+ if (ret) {
+ goto end;
+ }
+
+ /* Destination of the output (ctrl_url)*/
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_snapshot_ctrl_url, output->ctrl_url);
+ if (ret) {
+ goto end;
+ }
+
+ /* Snapshot added for session "current_session_name"*/
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_snapshot_session_name, current_session_name);
+ if (ret) {
+ goto end;
+ }
+
+ /* total size of all stream combined */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ mi_lttng_element_snapshot_max_size, output->max_size);
+ if (ret) {
+ goto end;
+ }
+
+ /* Close snapshot element */
+ ret = mi_lttng_writer_close_element(writer);
+
+end:
+ return ret;
+}
+
+int mi_lttng_snapshot_record(struct mi_writer *writer,
+ const char *current_session_name, const char *url,
+ const char *cmdline_ctrl_url, const char *cmdline_data_url)
+{
+ int ret;
+
+ /* Open element snapshot */
+ ret = mi_lttng_writer_open_element(writer,
+ mi_lttng_element_command_snapshot);
+ if (ret) {
+ goto end;
+ }
+
+ /*
+ * If a valid an URL was given, serialize it,
+ * else take the command line data and ctrl urls*/
+ if (url) {
+ /* Destination of the output (ctrl_url)*/
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_snapshot_ctrl_url, url);
+ if (ret) {
+ goto end;
+ }
+ } else if (cmdline_ctrl_url) {
+ /* Destination of the output (ctrl_url)*/
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_snapshot_ctrl_url, cmdline_ctrl_url);
+ if (ret) {
+ goto end;
+ }
+
+ /* Destination of the output (data_url) */
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_snapshot_data_url, cmdline_data_url);
+ if (ret) {
+ goto end;
+ }
+ }
+
+ /* Close record_snapshot element */
+ ret = mi_lttng_writer_close_element(writer);
+
+end:
+ return ret;
+}
+
+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;
+}
+
+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;
+}
+
+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;
+}
projects / lttng-tools.git / blobdiff