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N_QUERY Module N_RANDOM Module N_SHA256 Module N_STR Module N_TIFF Module N_TIME Module N_USER Module N_X509 Module N_ZIP Module PARTICLES Module PCRE Module PHYSICS Module SIGNALS Module STACK Module THREADS Module TRAJECTORY Module TREE Module ZLIB Modules Pages Struct A4_BMP Struct A4_TIMER Struct AABB3D Struct ANIM_DATA Struct ANIM_FRAME Struct ANIM_GFX Struct ANIM_LIB Struct ASTAR_BOX Struct ASTAR_CELL Struct ASTAR_GRID Struct ASTAR_HEAP Struct ASTAR_HEAP_NODE Struct ASTAR_NODE Struct ASTAR_PATH Struct AVRO_FIELD Struct AVRO_READER Struct AVRO_SCHEMA Struct BITMAP Struct CALLBACK_DATA Struct CA_CTX Struct CLIENT_JOB Struct CLIENT_STATE Struct CONFIG_FILE Struct CONFIG_FILE_SECTION Struct CYPHER_PARAM Struct DATA Struct DEMO_PANEL Struct DICTIONARY_DEFINITION Struct DICTIONARY_ENTRY Struct DIFF_OUT Struct DIFF_TEXT Struct DRAW_STATE Struct DR_ENTITY Struct DR_STATE Struct DR_VEC3 Struct ExceptionContextList Struct FONT Struct GAME_ENV Struct H2BUF Struct H2_DYN_ENTRY Struct H2_STREAM Struct HASH_NODE Struct HASH_TABLE Struct ISO_DRAW_ENTRY Struct ISO_MAP Struct ISO_PROJECTION Struct ISO_TILE_SEGMENT Struct ISO_TILE_SEGMENTS Struct ISO_VISIBLE_EDGES Struct JS_STATE Struct LEX_ITEM Struct LIST Struct LIST_NODE Struct LOG_LEVELS Struct LexMenu Struct MEMBER Struct MIDI Struct NESTED Struct NETWORK Struct NETWORK_HTTP_INFO Struct NETWORK_POOL Struct NETWORK_SSL_THREAD_PARAMS Struct NETW_ACCEPT_POOL Struct NETW_ACCEPT_POOL_STATS Struct NETW_MSG Struct NETW_SNI_ARG Struct NODE_DATA Struct N_ATLAS Struct N_ATLAS_PAGE Struct N_CLOCK_SYNC Struct N_COOKIE Struct N_COOKIE_JAR Struct N_DIFF_LINE Struct N_DIFF_RESULT Struct N_DISK_CACHE Struct N_ENTROPY_BIT Struct N_ENTROPY_POS Struct N_FILE_INFO Struct N_FLUID Struct N_FLUID_THREAD_PARAMS Struct N_FORM_FIELD Struct N_GIT_COMMIT_INFO Struct N_GIT_REMOTE_AUTH Struct N_GIT_REPO Struct N_GIT_STATUS_ENTRY Struct N_GUI_BUTTON_DATA Struct N_GUI_CHECKBOX_DATA Struct N_GUI_COLOR_PICKER Struct N_GUI_COMBOBOX_DATA Struct N_GUI_CTX Struct N_GUI_CUSTOM_DATA Struct N_GUI_DATAGRID_COL Struct N_GUI_DATAGRID_DATA Struct N_GUI_DROPMENU_DATA Struct N_GUI_DROPMENU_ENTRY Struct N_GUI_GRID_CALLBACKS Struct N_GUI_HEXVIEW_DATA Struct N_GUI_IMAGE_DATA Struct N_GUI_KVTABLE Struct N_GUI_KV_CONTENT Struct N_GUI_KV_ROW Struct N_GUI_LABEL_DATA Struct N_GUI_LISTBOX_DATA Struct N_GUI_LISTITEM Struct N_GUI_MARKDOWNVIEW_DATA Struct N_GUI_MD_FONTS Struct N_GUI_MD_STYLE Struct N_GUI_MEAS_ENTRY Struct N_GUI_MOUSE_EVENT Struct N_GUI_PENDING_GEOM Struct N_GUI_PENDING_WIDGET Struct N_GUI_POPUP Struct N_GUI_PROGRESSBAR_DATA Struct N_GUI_RADIOLIST_DATA Struct N_GUI_SB_TRACK Struct N_GUI_SCROLLBAR_DATA Struct N_GUI_SECTION Struct N_GUI_SECTIONLIST Struct N_GUI_SLIDER_DATA Struct N_GUI_SPLITPANE_DATA Struct N_GUI_STYLE Struct N_GUI_SUGGEST_SINK Struct N_GUI_SYNTAXVIEW_DATA Struct N_GUI_TAB_PANEL Struct N_GUI_TB_BUTTONS Struct N_GUI_TEXTAREA_DATA Struct N_GUI_TEXT_DIMS Struct N_GUI_THEME Struct N_GUI_TREE Struct N_GUI_TREE_NODE Struct N_GUI_TREE_STATE Struct N_GUI_WIDGET Struct N_GUI_WINDOW Struct N_H2_FRAME Struct N_H2_HEADER Struct N_H2_HPACK Struct N_H2_REQUEST Struct N_H2_SERVER Struct N_H2_SETTING Struct N_HTML_ATTR_ Struct N_HTML_FORM Struct N_HTML_TAG_ Struct N_HTTP3_RESPONSE Struct N_HTTP_FIELD Struct N_HTTP_FORM Struct N_HTTP_FORM_MULTIPART Struct N_HTTP_FORM_PART Struct N_HTTP_MULTIPART_PART Struct N_HTTP_REQUEST Struct N_HTTP_RESP Struct N_HTTP_RESPONSE Struct N_HTTP_SERVER Struct N_HTTP_SERVER_CONFIG Struct N_HTTP_SERVER_REQUEST Struct N_HTTP_SERVER_STATS Struct N_HTTP_SET_COOKIE Struct N_HTTP_STREAM Struct N_ISO_CAMERA Struct N_ISO_OBJECT Struct N_KAFKA Struct N_KAFKA_EVENT Struct N_MOCK_SERVER Struct N_MODULE Struct N_PARALLEL_SLICE Struct N_PARALLEL_TEAM Struct N_PARALLEL_WORKER Struct N_PCRE Struct N_PROXY_CFG Struct N_PTH Struct N_PTH_TENSOR Struct N_QUERY Struct N_ROUTE Struct N_ROUTER Struct N_ROUTE_MATCH Struct N_SHA256 Struct N_SOCKET Struct N_SPAWN_PIPE Struct N_SSE_CONN Struct N_SSE_EVENT Struct N_STR Struct N_TIFF Struct N_TIFF_ENTRY Struct N_TIME Struct N_URL Struct N_URL_PARAM Struct N_USER Struct N_USERLIST Struct N_WS_CONN Struct N_WS_FRAME Struct N_WS_MESSAGE Struct N_ZIP_MEMBER Struct OCTREE Struct OCTREE_NODE Struct PARSER Struct PARTICLE Struct PARTICLE_EMITTER Struct PARTICLE_SYSTEM Struct PEER Struct PHYSICS Struct PK_OBJ Struct PK_VM Struct POINT2D Struct POINT3D Struct PRETTY_OUT Struct QNODE Struct QUADTREE Struct QUADTREE_NODE Struct REC Struct RGB Struct SAMPLE Struct SEEN Struct SHARER Struct SRV Struct SRV_ARG Struct STACK Struct STACK_ITEM Struct SYNTAX_RUN Struct THREAD_POOL Struct THREAD_POOL_NODE Struct THREAD_WAITING_PROC Struct TRAJECTORY Struct TRAJECTORY_POINT Struct TREE Struct TREE_NODE Struct TS_LOG Struct WAYPOINT3D Struct WORKER_ARG Struct ZIP_SINK Struct _N_DC_ENTRY Struct _N_DC_GROUP_ENTRY Struct _N_GUI_COLORWHEEL Struct _N_GUI_COLORWHEEL_BLOCK Struct _N_GUI_COLORWHEEL_MOUSE Struct _N_GUI_CURVE Struct _N_GUI_CURVE_BLOCK Struct _N_GUI_CURVE_MOUSE Struct _N_GUI_GRID Struct _N_GUI_POPUP_ENTRY Struct _N_GUI_POPUP_LEVEL Struct _N_GUI_SB_SKIN Struct _N_GUI_TA_STEP Struct _N_GUI_THUMB Struct _N_GUI_WRAP_ACC Struct _compiled Struct _conn Struct _ip_slot Struct _mp_param Struct _n_civil Struct _seg Struct client Struct collector Struct date_vector Struct md_atom Struct md_cells Struct md_hit Struct md_line_ctx Struct mline Struct n_http_req_header Struct n_http_req_limits Struct n_http_request Struct n_markdown_block Struct n_markdown_doc Struct n_markdown_inline Struct n_markdown_span Struct n_reactor_stats Struct n_url_safe Struct n_url_safe_head Struct n_wrap_item Struct producer_state Struct rects Struct reply Struct runner Struct sink Struct tbuf Struct wrap_hit Struct wrap_span Structures Union COORD_VALUE Union HASH_DATA Union NODE_DATA_TYPES Union STACK_DATA dir_310dcdd4703e877a6b99d5dc3fc54d27 dir_68267d1309a1af8e8297ef4c3efbcdba dir_d28a4824dc47e487b107a5db32ef43c4 dir_d44c64559bbebec7f509842c48db8b23 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ex_base64_8c example ex_clock_sync_8c example ex_common_8c example ex_configfile_8c example ex_cookies_8c example ex_crypto_8c example ex_diff_8c example ex_digest_8c example ex_disk_cache_8c example ex_dns_8c example ex_ecc_8c example ex_entropy_8c example ex_exceptions_8c example ex_file_8c example ex_file_copy_8c example ex_fluid_8c example ex_fluid_config_8c example ex_fluid_config_8h example ex_git_8c example ex_gui_8c example ex_gui_bench_8c example ex_gui_button_keys_8c example ex_gui_checkbox_label_8c example ex_gui_checkbox_release_8c example ex_gui_color_picker_8c example ex_gui_colorwheel_8c example ex_gui_combobox_items_8c example ex_gui_combobox_wheel_8c example ex_gui_cursor_8c example ex_gui_curve_8c example ex_gui_custom_8c example ex_gui_custom_mouse_8c example ex_gui_datagrid_8c example ex_gui_datagrid_keys_8c example ex_gui_datagrid_sort_8c example ex_gui_detach_8c example ex_gui_dictionary_8c example ex_gui_display_fallback_8c example ex_gui_double_click_8c example ex_gui_dropmenu_8c example ex_gui_frameless_drag_8c example ex_gui_global_scroll_8c example ex_gui_glyph_8c example ex_gui_grid_8c example ex_gui_hexview_8c example ex_gui_hover_8c example ex_gui_isometric_8c example ex_gui_kvtable_8c example ex_gui_label_fits_8c example ex_gui_label_lines_8c example ex_gui_layout_persist_8c example ex_gui_listbox_8c example ex_gui_md_8c example ex_gui_multiwin_8c example ex_gui_network_8c example ex_gui_particles_8c example ex_gui_placeholder_8c example ex_gui_popup_8c example ex_gui_progressbar_8c example ex_gui_reentrant_8c example ex_gui_round_8c example ex_gui_sectionlist_8c example ex_gui_slider_default_8c example ex_gui_slider_handle_8c example ex_gui_slider_step_8c example ex_gui_splitpane_8c example ex_gui_suggest_8c example ex_gui_syntaxview_8c example ex_gui_text_shorten_8c example ex_gui_textarea_selection_8c example ex_gui_tooltip_8c example ex_gui_tree_lazy_8c example ex_gui_tree_order_8c example ex_gui_tree_state_8c example ex_gui_window_rect_8c example ex_gui_zorder_8c example ex_hash_8c example ex_hex_8c example ex_html_8c example ex_http2_8c example ex_http2_server_8c example ex_http_cookie_8c example ex_http_form_8c example ex_http_mime_8c example ex_http_req_8c example ex_http_response_8c example ex_http_router_8c example ex_http_server_8c example ex_icc_8c example ex_iso_astar_8c example ex_json_8c example ex_kafka_8c example ex_linalg_8c example ex_list_8c example ex_log_8c example ex_markdown_8c example ex_module_8c example ex_monolith_8c example ex_network_8c example ex_network_8h example ex_network_accept_8c example ex_network_alpn_8c example ex_network_connect_abort_8c example ex_network_mock_8c example ex_network_proxy_8c example ex_network_reactor_8c example ex_network_sni_8c example ex_network_sse_8c example ex_network_ssl_8c example ex_network_ssl_hardened_8c example ex_network_ssl_hostname_8c example ex_network_ssl_nonblock_8c example ex_network_tls_defaults_8c example ex_network_ws_8c example ex_network_ws_limits_8c example ex_nstr_8c example ex_parallel_for_8c example ex_parallel_team_8c example ex_pcre_8c example ex_pretty_8c example ex_pth_8c example ex_query_8c example ex_random_8c example ex_sha256_8c example ex_signals_8c example ex_spawn_8c example ex_ssrf_8c example ex_stack_8c example ex_threads_8c example ex_tiff_8c example ex_time_formats_8c example ex_trajectory_8c example ex_trees_8c example ex_url_8c example ex_url_safe_8c example ex_wrap_8c example ex_x509_8c example ex_zip_8c example ex_zlib_8c example mainpage_8dox n__3d_8c n__3d_8h n__aabb_8c n__aabb_8h n__allegro5_8c n__allegro5_8h n__allegro__4_8c n__allegro__4_8h n__anim_8c n__anim_8h n__astar_8c n__astar_8h n__atlas_8c n__atlas_8h n__avro_8c n__avro_8h n__base64_8c n__base64_8h n__clipboard_8c n__clipboard_8h n__clock__sync_8c n__clock__sync_8h n__common_8c n__common_8h n__config__file_8c n__config__file_8h n__cookies_8c n__cookies_8h n__crypto_8c n__crypto_8h n__dead__reckoning_8c 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n__iso__engine_8h n__json_8c n__json_8h n__kafka_8c n__kafka_8h n__linalg_8c n__linalg_8h n__list_8c n__list_8h n__log_8c n__log_8h n__lz4_8c n__lz4_8h n__markdown_8c n__markdown_8h n__module_8c n__module_8h n__network_8c n__network_8h n__network__accept__pool_8c n__network__accept__pool_8h n__network__msg_8c n__network__msg_8h n__nodup__log_8c n__nodup__log_8h n__openssl__compat_8h n__particles_8c n__particles_8h n__pcre_8c n__pcre_8h n__pretty_8c n__pretty_8h n__pth_8c n__pth_8h n__query_8c n__query_8h n__random_8c n__random_8h n__reactor_8c n__reactor_8h n__sha256_8c n__sha256_8h n__signals_8c n__signals_8h n__ssrf_8c n__ssrf_8h n__stack_8c n__stack_8h n__str_8c n__str_8h n__thread__pool_8c n__thread__pool_8h n__tiff_8c n__tiff_8h n__time_8c n__time_8h n__trajectory_8c n__trajectory_8h n__trees_8c n__trees_8h n__url__safe_8c n__url__safe_8h n__user_8c n__user_8h n__windows_8h n__wrap_8c n__wrap_8h n__x509_8c n__x509_8h n__zip_8c n__zip_8h n__zlib_8c n__zlib_8h nilorea_8h
5 Struct N_KAFKA
gullradriel edited this page 2026-10-09 00:55:18 +02:00
Table of Contents

N_KAFKA

Module: KAFKA: generic event producer and consumer functions

structure of a KAFKA consumer or producer handle

#include "n_kafka.h"

Public Attributes

Name
char * tosend_dir
base directory the produced event files are read from ('to-send').
char ** topics
list of topics to subscribe to
char * topic
kafka topic string
rd_kafka_topic_partition_list_t * subscription
subscribed topics
char * sended_dir
base directory produced event files are moved to once acknowledged ('sended').
int schema_id
kafka schema id in network order
pthread_rwlock_t rwlock
access lock
LIST * received_events
list of received N_KAFKA_EVENT
rd_kafka_topic_t * rd_kafka_topic
kafka topic handle
rd_kafka_t * rd_kafka_handle
kafka handle (producer or consumer)
rd_kafka_conf_t * rd_kafka_conf
kafka structure handle
int polling_thread_status
polling thread status, 0 => off , 1 => on , 2 => wants to stop, will be turned out to 0 by exiting polling thread
pthread_t polling_thread
polling thread id
int32_t poll_timeout
poll timeout in msecs
int32_t poll_interval
poll interval in msecs
size_t nb_waiting
number of events waiting for an ack in the waiting list
size_t nb_queued
number of waiting events in the producer waiting list
size_t nb_error
number of errored events
int32_t monitored_directory_interval
monitored directory refresh interval in msecs
int mode
kafka handle mode: RD_KAFKA_CONSUMER or RD_KAFKA_PRODUCER
int is_transactional
TRUE when a 'transactional.id' is set in the producer config: produces are then wrapped in kafka transactions.
char * groupid
consumer group id
LIST * events_to_send
list of N_KAFKA_EVENT to send
int32_t event_production_enabled
bool flag to suspend or restart event production
int32_t event_consumption_enabled
bool flag to suspend or restart event consumption
char * event_cmd
eventual custom event_cmd
N_STR * errstr
kafka error string holder
int32_t error_timeout
retry interval in seconds for events stuck in N_KAFKA_EVENT_ERROR.
cJSON * configuration
kafka json configuration holder
char * bootstrap_servers
kafka bootstrap servers string

Public Attributes Documentation

variable tosend_dir

char * tosend_dir;

base directory the produced event files are read from ('to-send').

Used together with sended_dir to compute the destination subpath when moving a file on ack. NULL keeps the legacy behaviour.

variable topics

char ** topics;

list of topics to subscribe to

variable topic

char * topic;

kafka topic string

variable subscription

rd_kafka_topic_partition_list_t * subscription;

subscribed topics

variable sended_dir

char * sended_dir;

base directory produced event files are moved to once acknowledged ('sended').

When NULL, acknowledged files are deleted (legacy behaviour) instead of being moved.

variable schema_id

int schema_id;

kafka schema id in network order

variable rwlock

pthread_rwlock_t rwlock;

access lock

variable received_events

LIST * received_events;

list of received N_KAFKA_EVENT

variable rd_kafka_topic

rd_kafka_topic_t * rd_kafka_topic;

kafka topic handle

variable rd_kafka_handle

rd_kafka_t * rd_kafka_handle;

kafka handle (producer or consumer)

variable rd_kafka_conf

rd_kafka_conf_t * rd_kafka_conf;

kafka structure handle

variable polling_thread_status

int polling_thread_status;

polling thread status, 0 => off , 1 => on , 2 => wants to stop, will be turned out to 0 by exiting polling thread

variable polling_thread

pthread_t polling_thread;

polling thread id

variable poll_timeout

int32_t poll_timeout;

poll timeout in msecs

variable poll_interval

int32_t poll_interval;

poll interval in msecs

variable nb_waiting

size_t nb_waiting;

number of events waiting for an ack in the waiting list

variable nb_queued

size_t nb_queued;

number of waiting events in the producer waiting list

variable nb_error

size_t nb_error;

number of errored events

variable monitored_directory_interval

int32_t monitored_directory_interval;

monitored directory refresh interval in msecs

variable mode

int mode;

kafka handle mode: RD_KAFKA_CONSUMER or RD_KAFKA_PRODUCER

variable is_transactional

int is_transactional;

TRUE when a 'transactional.id' is set in the producer config: produces are then wrapped in kafka transactions.

FALSE keeps the legacy fire-and-forget produce path.

variable groupid

char * groupid;

consumer group id

variable events_to_send

LIST * events_to_send;

list of N_KAFKA_EVENT to send

variable event_production_enabled

int32_t event_production_enabled;

bool flag to suspend or restart event production

variable event_consumption_enabled

int32_t event_consumption_enabled;

bool flag to suspend or restart event consumption

variable event_cmd

char * event_cmd;

eventual custom event_cmd

variable errstr

N_STR * errstr;

kafka error string holder

variable error_timeout

int32_t error_timeout;

retry interval in seconds for events stuck in N_KAFKA_EVENT_ERROR.

0 (default) disables retries, errored events stay errored until the caller dumps and reloads them.

variable configuration

cJSON * configuration;

kafka json configuration holder

variable bootstrap_servers

char * bootstrap_servers;

kafka bootstrap servers string

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