/* * Copyright (C) Igor Sysoev * Copyright (C) Valentin V. Bartenev * Copyright (C) NGINX, Inc. */ #include #include typedef struct { nxt_str_t type; uint32_t workers; } nxt_router_app_conf_t; typedef struct { nxt_str_t application; } nxt_router_listener_conf_t; static nxt_router_temp_conf_t *nxt_router_temp_conf(nxt_task_t *task); static nxt_int_t nxt_router_conf_new(nxt_task_t *task, nxt_router_temp_conf_t *tmcf, u_char *start, u_char *end); static void nxt_router_conf_success(nxt_task_t *task, nxt_router_temp_conf_t *tmcf); static void nxt_router_conf_error(nxt_task_t *task, nxt_router_temp_conf_t *tmcf); static void nxt_router_conf_send(nxt_task_t *task, nxt_router_temp_conf_t *tmcf, u_char *start, size_t size); static void nxt_router_conf_buf_completion(nxt_task_t *task, void *obj, void *data); static void nxt_router_listen_sockets_sort(nxt_router_t *router, nxt_router_temp_conf_t *tmcf); static nxt_int_t nxt_router_conf_create(nxt_task_t *task, nxt_router_temp_conf_t *tmcf, u_char *start, u_char *end); static nxt_app_t *nxt_router_app_find(nxt_queue_t *queue, nxt_str_t *name); static nxt_app_t *nxt_router_listener_application(nxt_router_temp_conf_t *tmcf, nxt_str_t *name); static nxt_int_t nxt_router_listen_sockets_stub_create(nxt_task_t *task, nxt_router_temp_conf_t *tmcf); static nxt_socket_conf_t *nxt_router_socket_conf(nxt_task_t *task, nxt_mp_t *mp, nxt_sockaddr_t *sa); static nxt_int_t nxt_router_engines_create(nxt_task_t *task, nxt_router_t *router, nxt_router_temp_conf_t *tmcf, const nxt_event_interface_t *interface); static nxt_int_t nxt_router_engine_conf_create(nxt_router_temp_conf_t *tmcf, nxt_router_engine_conf_t *recf); static nxt_int_t nxt_router_engine_conf_update(nxt_router_temp_conf_t *tmcf, nxt_router_engine_conf_t *recf); static nxt_int_t nxt_router_engine_conf_delete(nxt_router_temp_conf_t *tmcf, nxt_router_engine_conf_t *recf); static void nxt_router_engine_socket_count(nxt_queue_t *sockets); static nxt_int_t nxt_router_engine_joints_create(nxt_mp_t *mp, nxt_router_temp_conf_t *tmcf, nxt_router_engine_conf_t *recf, nxt_queue_t *sockets, nxt_array_t *array, nxt_work_handler_t handler); static nxt_int_t nxt_router_engine_joints_delete(nxt_router_temp_conf_t *tmcf, nxt_router_engine_conf_t *recf, nxt_queue_t *sockets); static nxt_int_t nxt_router_threads_create(nxt_task_t *task, nxt_runtime_t *rt, nxt_router_temp_conf_t *tmcf); static nxt_int_t nxt_router_thread_create(nxt_task_t *task, nxt_runtime_t *rt, nxt_event_engine_t *engine); static void nxt_router_apps_sort(nxt_router_t *router, nxt_router_temp_conf_t *tmcf); static void nxt_router_engines_post(nxt_router_temp_conf_t *tmcf); static void nxt_router_engine_post(nxt_router_temp_conf_t *tmcf, nxt_router_engine_conf_t *recf); static void nxt_router_thread_start(void *data); static void nxt_router_listen_socket_create(nxt_task_t *task, void *obj, void *data); static void nxt_router_listen_socket_update(nxt_task_t *task, void *obj, void *data); static void nxt_router_listen_socket_delete(nxt_task_t *task, void *obj, void *data); static void nxt_router_listen_socket_close(nxt_task_t *task, void *obj, void *data); static void nxt_router_listen_socket_release(nxt_task_t *task, nxt_socket_conf_joint_t *joint); static void nxt_router_thread_exit_handler(nxt_task_t *task, void *obj, void *data); static void nxt_router_conf_release(nxt_task_t *task, nxt_socket_conf_joint_t *joint); static void nxt_router_conn_init(nxt_task_t *task, void *obj, void *data); static void nxt_router_conn_http_header_parse(nxt_task_t *task, void *obj, void *data); static void nxt_router_process_http_request(nxt_task_t *task, nxt_conn_t *c, nxt_app_parse_ctx_t *ap); static void nxt_router_conn_ready(nxt_task_t *task, void *obj, void *data); static void nxt_router_conn_close(nxt_task_t *task, void *obj, void *data); static void nxt_router_conn_free(nxt_task_t *task, void *obj, void *data); static void nxt_router_conn_error(nxt_task_t *task, void *obj, void *data); static void nxt_router_conn_timeout(nxt_task_t *task, void *obj, void *data); static nxt_msec_t nxt_router_conn_timeout_value(nxt_conn_t *c, uintptr_t data); static nxt_router_t *nxt_router; nxt_int_t nxt_router_start(nxt_task_t *task, nxt_runtime_t *rt) { nxt_int_t ret; nxt_router_t *router; ret = nxt_app_http_init(task, rt); if (nxt_slow_path(ret != NXT_OK)) { return ret; } router = nxt_zalloc(sizeof(nxt_router_t)); if (nxt_slow_path(router == NULL)) { return NXT_ERROR; } nxt_queue_init(&router->engines); nxt_queue_init(&router->sockets); nxt_queue_init(&router->apps); nxt_router = router; return NXT_OK; } void nxt_router_conf_data_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg) { size_t dump_size; nxt_buf_t *b; nxt_int_t ret; nxt_router_temp_conf_t *tmcf; b = msg->buf; dump_size = nxt_buf_used_size(b); if (dump_size > 300) { dump_size = 300; } nxt_debug(task, "router conf data (%z): %*s", msg->size, dump_size, b->mem.pos); tmcf = nxt_router_temp_conf(task); if (nxt_slow_path(tmcf == NULL)) { return; } tmcf->conf->router = nxt_router; tmcf->stream = msg->port_msg.stream; tmcf->port = nxt_runtime_port_find(task->thread->runtime, msg->port_msg.pid, 0); ret = nxt_router_conf_new(task, tmcf, b->mem.pos, b->mem.free); b->mem.pos = b->mem.free; if (ret == NXT_OK) { return nxt_router_conf_success(task, tmcf); } nxt_log(task, NXT_LOG_CRIT, "failed to apply new conf"); return nxt_router_conf_error(task, tmcf); } static nxt_router_temp_conf_t * nxt_router_temp_conf(nxt_task_t *task) { nxt_mp_t *mp, *tmp; nxt_router_conf_t *rtcf; nxt_router_temp_conf_t *tmcf; mp = nxt_mp_create(1024, 128, 256, 32); if (nxt_slow_path(mp == NULL)) { return NULL; } rtcf = nxt_mp_zget(mp, sizeof(nxt_router_conf_t)); if (nxt_slow_path(rtcf == NULL)) { goto fail; } rtcf->mem_pool = mp; rtcf->count = 1; tmp = nxt_mp_create(1024, 128, 256, 32); if (nxt_slow_path(tmp == NULL)) { goto fail; } tmcf = nxt_mp_zget(tmp, sizeof(nxt_router_temp_conf_t)); if (nxt_slow_path(tmcf == NULL)) { goto temp_fail; } tmcf->mem_pool = tmp; tmcf->conf = rtcf; tmcf->count = 1; tmcf->engine = task->thread->engine; tmcf->engines = nxt_array_create(tmcf->mem_pool, 4, sizeof(nxt_router_engine_conf_t)); if (nxt_slow_path(tmcf->engines == NULL)) { goto temp_fail; } nxt_queue_init(&tmcf->deleting); nxt_queue_init(&tmcf->keeping); nxt_queue_init(&tmcf->updating); nxt_queue_init(&tmcf->pending); nxt_queue_init(&tmcf->creating); nxt_queue_init(&tmcf->apps); nxt_queue_init(&tmcf->previous); return tmcf; temp_fail: nxt_mp_destroy(tmp); fail: nxt_mp_destroy(mp); return NULL; } static nxt_int_t nxt_router_conf_new(nxt_task_t *task, nxt_router_temp_conf_t *tmcf, u_char *start, u_char *end) { nxt_int_t ret; nxt_router_t *router; nxt_runtime_t *rt; const nxt_event_interface_t *interface; ret = nxt_router_conf_create(task, tmcf, start, end); if (nxt_slow_path(ret != NXT_OK)) { return ret; } router = tmcf->conf->router; nxt_router_listen_sockets_sort(router, tmcf); ret = nxt_router_listen_sockets_stub_create(task, tmcf); if (nxt_slow_path(ret != NXT_OK)) { return ret; } rt = task->thread->runtime; interface = nxt_service_get(rt->services, "engine", NULL); ret = nxt_router_engines_create(task, router, tmcf, interface); if (nxt_slow_path(ret != NXT_OK)) { return ret; } ret = nxt_router_threads_create(task, rt, tmcf); if (nxt_slow_path(ret != NXT_OK)) { return ret; } nxt_router_apps_sort(router, tmcf); nxt_router_engines_post(tmcf); nxt_queue_add(&router->sockets, &tmcf->updating); nxt_queue_add(&router->sockets, &tmcf->creating); return NXT_OK; } static void nxt_router_conf_wait(nxt_task_t *task, void *obj, void *data) { nxt_router_temp_conf_t *tmcf; tmcf = obj; nxt_router_conf_success(task, tmcf); } static void nxt_router_conf_success(nxt_task_t *task, nxt_router_temp_conf_t *tmcf) { nxt_debug(task, "temp conf count:%D", tmcf->count); if (--tmcf->count == 0) { nxt_router_conf_send(task, tmcf, (u_char *) "OK", 2); } } static void nxt_router_conf_error(nxt_task_t *task, nxt_router_temp_conf_t *tmcf) { nxt_mp_destroy(tmcf->conf->mem_pool); nxt_router_conf_send(task, tmcf, (u_char *) "ERROR", 5); } static void nxt_router_conf_send(nxt_task_t *task, nxt_router_temp_conf_t *tmcf, u_char *start, size_t size) { nxt_buf_t *b; b = nxt_buf_mem_alloc(tmcf->mem_pool, size, 0); if (nxt_slow_path(b == NULL)) { return; } b->parent = tmcf->mem_pool; b->completion_handler = nxt_router_conf_buf_completion; nxt_port_socket_write(task, tmcf->port, NXT_PORT_MSG_DATA, -1, tmcf->stream, 0, b); } static void nxt_router_conf_buf_completion(nxt_task_t *task, void *obj, void *data) { nxt_mp_t *mp; /* nxt_router_temp_conf_t mem pool. */ mp = data; nxt_mp_destroy(mp); } static nxt_conf_map_t nxt_router_conf[] = { { nxt_string("listeners_threads"), NXT_CONF_MAP_INT32, offsetof(nxt_router_conf_t, threads), }, }; static nxt_conf_map_t nxt_router_app_conf[] = { { nxt_string("type"), NXT_CONF_MAP_STR, offsetof(nxt_router_app_conf_t, type), }, { nxt_string("workers"), NXT_CONF_MAP_INT32, offsetof(nxt_router_app_conf_t, workers), }, }; static nxt_conf_map_t nxt_router_listener_conf[] = { { nxt_string("application"), NXT_CONF_MAP_STR, offsetof(nxt_router_listener_conf_t, application), }, }; static nxt_conf_map_t nxt_router_http_conf[] = { { nxt_string("header_buffer_size"), NXT_CONF_MAP_SIZE, offsetof(nxt_socket_conf_t, header_buffer_size), }, { nxt_string("large_header_buffer_size"), NXT_CONF_MAP_SIZE, offsetof(nxt_socket_conf_t, large_header_buffer_size), }, { nxt_string("header_read_timeout"), NXT_CONF_MAP_MSEC, offsetof(nxt_socket_conf_t, header_read_timeout), }, }; static nxt_int_t nxt_router_conf_create(nxt_task_t *task, nxt_router_temp_conf_t *tmcf, u_char *start, u_char *end) { u_char *p; size_t size; nxt_mp_t *mp; uint32_t next; nxt_int_t ret; nxt_str_t name; nxt_app_t *app, *prev; nxt_app_type_t type; nxt_sockaddr_t *sa; nxt_queue_link_t *qlk, *nqlk; nxt_conf_value_t *conf, *http; nxt_conf_value_t *applications, *application; nxt_conf_value_t *listeners, *listener; nxt_socket_conf_t *skcf; nxt_router_app_conf_t apcf; nxt_router_listener_conf_t lscf; static nxt_str_t http_path = nxt_string("/http"); static nxt_str_t applications_path = nxt_string("/applications"); static nxt_str_t listeners_path = nxt_string("/listeners"); conf = nxt_conf_json_parse(tmcf->mem_pool, start, end); if (conf == NULL) { nxt_log(task, NXT_LOG_CRIT, "configuration parsing error"); return NXT_ERROR; } ret = nxt_conf_map_object(conf, nxt_router_conf, nxt_nitems(nxt_router_conf), tmcf->conf); if (ret != NXT_OK) { nxt_log(task, NXT_LOG_CRIT, "root map error"); return NXT_ERROR; } if (tmcf->conf->threads == 0) { tmcf->conf->threads = nxt_ncpu; } applications = nxt_conf_get_path(conf, &applications_path); if (applications == NULL) { nxt_log(task, NXT_LOG_CRIT, "no \"applications\" block"); return NXT_ERROR; } next = 0; for ( ;; ) { application = nxt_conf_next_object_member(applications, &name, &next); if (application == NULL) { break; } nxt_debug(task, "application \"%V\"", &name); app = nxt_zalloc(sizeof(nxt_app_t)); if (app == NULL) { goto fail; } size = nxt_conf_json_length(application, NULL); app->conf.start = nxt_malloc(size); if (app->conf.start == NULL) { nxt_free(app); goto fail; } p = nxt_conf_json_print(app->conf.start, application, NULL); app->conf.length = p - app->conf.start; nxt_debug(task, "application conf \"%V\"", &app->conf); prev = nxt_router_app_find(&tmcf->conf->router->apps, &name); if (prev != NULL && nxt_strstr_eq(&app->conf, &prev->conf)) { nxt_free(app->conf.start); nxt_free(app); nxt_queue_remove(&prev->link); nxt_queue_insert_tail(&tmcf->previous, &prev->link); continue; } ret = nxt_conf_map_object(application, nxt_router_app_conf, nxt_nitems(nxt_router_app_conf), &apcf); if (ret != NXT_OK) { nxt_log(task, NXT_LOG_CRIT, "application map error"); goto app_fail; } nxt_debug(task, "application type: %V", &apcf.type); nxt_debug(task, "application workers: %D", apcf.workers); if (nxt_str_eq(&apcf.type, "python", 6)) { type = NXT_APP_PYTHON; } else if (nxt_str_eq(&apcf.type, "php", 3)) { type = NXT_APP_PHP; } else if (nxt_str_eq(&apcf.type, "ruby", 4)) { type = NXT_APP_RUBY; } else if (nxt_str_eq(&apcf.type, "go", 2)) { type = NXT_APP_GO; } else { nxt_log(task, NXT_LOG_CRIT, "unsupported application type: \"%V\"", &apcf.type); goto app_fail; } ret = nxt_thread_mutex_create(&app->mutex); if (ret != NXT_OK) { goto app_fail; } app->name = name; app->type = type; app->max_workers = apcf.workers; app->live = 1; nxt_queue_insert_tail(&tmcf->apps, &app->link); } http = nxt_conf_get_path(conf, &http_path); #if 0 if (http == NULL) { nxt_log(task, NXT_LOG_CRIT, "no \"http\" block"); return NXT_ERROR; } #endif listeners = nxt_conf_get_path(conf, &listeners_path); if (listeners == NULL) { nxt_log(task, NXT_LOG_CRIT, "no \"listeners\" block"); return NXT_ERROR; } next = 0; mp = tmcf->conf->mem_pool; for ( ;; ) { listener = nxt_conf_next_object_member(listeners, &name, &next); if (listener == NULL) { break; } sa = nxt_sockaddr_parse(mp, &name); if (sa == NULL) { nxt_log(task, NXT_LOG_CRIT, "invalid listener \"%V\"", &name); goto fail; } sa->type = SOCK_STREAM; nxt_debug(task, "router listener: \"%*s\"", sa->length, nxt_sockaddr_start(sa)); skcf = nxt_router_socket_conf(task, mp, sa); if (skcf == NULL) { goto fail; } ret = nxt_conf_map_object(listener, nxt_router_listener_conf, nxt_nitems(nxt_router_listener_conf), &lscf); if (ret != NXT_OK) { nxt_log(task, NXT_LOG_CRIT, "listener map error"); goto fail; } nxt_debug(task, "application: %V", &lscf.application); // STUB, default values if http block is not defined. skcf->header_buffer_size = 2048; skcf->large_header_buffer_size = 8192; skcf->header_read_timeout = 5000; if (http != NULL) { ret = nxt_conf_map_object(http, nxt_router_http_conf, nxt_nitems(nxt_router_http_conf), skcf); if (ret != NXT_OK) { nxt_log(task, NXT_LOG_CRIT, "http map error"); goto fail; } } skcf->listen.handler = nxt_router_conn_init; skcf->router_conf = tmcf->conf; skcf->application = nxt_router_listener_application(tmcf, &lscf.application); nxt_queue_insert_tail(&tmcf->pending, &skcf->link); } return NXT_OK; app_fail: nxt_free(app->conf.start); nxt_free(app); fail: for (qlk = nxt_queue_first(&tmcf->apps); qlk != nxt_queue_tail(&tmcf->apps); qlk = nqlk) { nqlk = nxt_queue_next(qlk); app = nxt_queue_link_data(qlk, nxt_app_t, link); nxt_thread_mutex_destroy(&app->mutex); nxt_free(app); } return NXT_ERROR; } static nxt_app_t * nxt_router_app_find(nxt_queue_t *queue, nxt_str_t *name) { nxt_app_t *app; nxt_queue_link_t *qlk; for (qlk = nxt_queue_first(queue); qlk != nxt_queue_tail(queue); qlk = nxt_queue_next(qlk)) { app = nxt_queue_link_data(qlk, nxt_app_t, link); if (nxt_strstr_eq(name, &app->name)) { return app; } } return NULL; } static nxt_app_t * nxt_router_listener_application(nxt_router_temp_conf_t *tmcf, nxt_str_t *name) { nxt_app_t *app; app = nxt_router_app_find(&tmcf->apps, name); if (app == NULL) { app = nxt_router_app_find(&tmcf->previous, name); } return app; } static nxt_socket_conf_t * nxt_router_socket_conf(nxt_task_t *task, nxt_mp_t *mp, nxt_sockaddr_t *sa) { nxt_socket_conf_t *conf; conf = nxt_mp_zget(mp, sizeof(nxt_socket_conf_t)); if (nxt_slow_path(conf == NULL)) { return NULL; } conf->sockaddr = sa; conf->listen.sockaddr = sa; conf->listen.socklen = sa->socklen; conf->listen.address_length = sa->length; conf->listen.socket = -1; conf->listen.backlog = NXT_LISTEN_BACKLOG; conf->listen.flags = NXT_NONBLOCK; conf->listen.read_after_accept = 1; return conf; } static void nxt_router_listen_sockets_sort(nxt_router_t *router, nxt_router_temp_conf_t *tmcf) { nxt_queue_link_t *nqlk, *oqlk, *next; nxt_socket_conf_t *nskcf, *oskcf; for (nqlk = nxt_queue_first(&tmcf->pending); nqlk != nxt_queue_tail(&tmcf->pending); nqlk = next) { next = nxt_queue_next(nqlk); nskcf = nxt_queue_link_data(nqlk, nxt_socket_conf_t, link); for (oqlk = nxt_queue_first(&router->sockets); oqlk != nxt_queue_tail(&router->sockets); oqlk = nxt_queue_next(oqlk)) { oskcf = nxt_queue_link_data(oqlk, nxt_socket_conf_t, link); if (nxt_sockaddr_cmp(nskcf->sockaddr, oskcf->sockaddr)) { nskcf->socket = oskcf->socket; nskcf->listen.socket = oskcf->listen.socket; nxt_queue_remove(oqlk); nxt_queue_insert_tail(&tmcf->keeping, oqlk); nxt_queue_remove(nqlk); nxt_queue_insert_tail(&tmcf->updating, nqlk); break; } } } nxt_queue_add(&tmcf->deleting, &router->sockets); nxt_queue_init(&router->sockets); } static nxt_int_t nxt_router_listen_sockets_stub_create(nxt_task_t *task, nxt_router_temp_conf_t *tmcf) { nxt_int_t ret; nxt_socket_t s; nxt_queue_link_t *qlk, *nqlk; nxt_socket_conf_t *skcf; nxt_router_socket_t *rtsk; for (qlk = nxt_queue_first(&tmcf->pending); qlk != nxt_queue_tail(&tmcf->pending); qlk = nqlk) { rtsk = nxt_malloc(sizeof(nxt_router_socket_t)); if (nxt_slow_path(rtsk == NULL)) { return NXT_ERROR; } rtsk->count = 0; skcf = nxt_queue_link_data(qlk, nxt_socket_conf_t, link); skcf->socket = rtsk; s = nxt_listen_socket_create0(task, skcf->sockaddr, NXT_NONBLOCK); if (nxt_slow_path(s == -1)) { return NXT_ERROR; } ret = nxt_listen_socket(task, s, NXT_LISTEN_BACKLOG); if (nxt_slow_path(ret != NXT_OK)) { return NXT_ERROR; } skcf->listen.socket = s; rtsk->fd = s; nqlk = nxt_queue_next(qlk); nxt_queue_remove(qlk); nxt_queue_insert_tail(&tmcf->creating, qlk); } return NXT_OK; } static nxt_int_t nxt_router_engines_create(nxt_task_t *task, nxt_router_t *router, nxt_router_temp_conf_t *tmcf, const nxt_event_interface_t *interface) { nxt_int_t ret; nxt_uint_t n, threads; nxt_queue_link_t *qlk; nxt_router_engine_conf_t *recf; threads = tmcf->conf->threads; tmcf->engines = nxt_array_create(tmcf->mem_pool, threads, sizeof(nxt_router_engine_conf_t)); if (nxt_slow_path(tmcf->engines == NULL)) { return NXT_ERROR; } n = 0; for (qlk = nxt_queue_first(&router->engines); qlk != nxt_queue_tail(&router->engines); qlk = nxt_queue_next(qlk)) { recf = nxt_array_zero_add(tmcf->engines); if (nxt_slow_path(recf == NULL)) { return NXT_ERROR; } recf->engine = nxt_queue_link_data(qlk, nxt_event_engine_t, link0); if (n < threads) { ret = nxt_router_engine_conf_update(tmcf, recf); } else { ret = nxt_router_engine_conf_delete(tmcf, recf); } if (nxt_slow_path(ret != NXT_OK)) { return ret; } n++; } tmcf->new_threads = n; while (n < threads) { recf = nxt_array_zero_add(tmcf->engines); if (nxt_slow_path(recf == NULL)) { return NXT_ERROR; } recf->engine = nxt_event_engine_create(task, interface, NULL, 0, 0); if (nxt_slow_path(recf->engine == NULL)) { return NXT_ERROR; } ret = nxt_router_engine_conf_create(tmcf, recf); if (nxt_slow_path(ret != NXT_OK)) { return ret; } nxt_queue_insert_tail(&router->engines, &recf->engine->link0); n++; } return NXT_OK; } static nxt_int_t nxt_router_engine_conf_create(nxt_router_temp_conf_t *tmcf, nxt_router_engine_conf_t *recf) { nxt_mp_t *mp; nxt_int_t ret; nxt_thread_spinlock_t *lock; recf->creating = nxt_array_create(tmcf->mem_pool, 4, sizeof(nxt_work_t)); if (nxt_slow_path(recf->creating == NULL)) { return NXT_ERROR; } mp = tmcf->conf->mem_pool; ret = nxt_router_engine_joints_create(mp, tmcf, recf, &tmcf->creating, recf->creating, nxt_router_listen_socket_create); if (nxt_slow_path(ret != NXT_OK)) { return ret; } ret = nxt_router_engine_joints_create(mp, tmcf, recf, &tmcf->updating, recf->creating, nxt_router_listen_socket_create); if (nxt_slow_path(ret != NXT_OK)) { return ret; } lock = &tmcf->conf->router->lock; nxt_thread_spin_lock(lock); nxt_router_engine_socket_count(&tmcf->creating); nxt_router_engine_socket_count(&tmcf->updating); nxt_thread_spin_unlock(lock); return ret; } static nxt_int_t nxt_router_engine_conf_update(nxt_router_temp_conf_t *tmcf, nxt_router_engine_conf_t *recf) { nxt_mp_t *mp; nxt_int_t ret; nxt_thread_spinlock_t *lock; recf->creating = nxt_array_create(tmcf->mem_pool, 4, sizeof(nxt_work_t)); if (nxt_slow_path(recf->creating == NULL)) { return NXT_ERROR; } mp = tmcf->conf->mem_pool; ret = nxt_router_engine_joints_create(mp, tmcf, recf, &tmcf->creating, recf->creating, nxt_router_listen_socket_create); if (nxt_slow_path(ret != NXT_OK)) { return ret; } recf->updating = nxt_array_create(tmcf->mem_pool, 4, sizeof(nxt_work_t)); if (nxt_slow_path(recf->updating == NULL)) { return NXT_ERROR; } ret = nxt_router_engine_joints_create(mp, tmcf, recf, &tmcf->updating, recf->updating, nxt_router_listen_socket_update); if (nxt_slow_path(ret != NXT_OK)) { return ret; } recf->deleting = nxt_array_create(tmcf->mem_pool, 4, sizeof(nxt_work_t)); if (nxt_slow_path(recf->deleting == NULL)) { return NXT_ERROR; } ret = nxt_router_engine_joints_delete(tmcf, recf, &tmcf->deleting); if (nxt_slow_path(ret != NXT_OK)) { return ret; } lock = &tmcf->conf->router->lock; nxt_thread_spin_lock(lock); nxt_router_engine_socket_count(&tmcf->creating); nxt_thread_spin_unlock(lock); return ret; } static nxt_int_t nxt_router_engine_conf_delete(nxt_router_temp_conf_t *tmcf, nxt_router_engine_conf_t *recf) { nxt_int_t ret; recf->deleting = nxt_array_create(tmcf->mem_pool, 4, sizeof(nxt_work_t)); if (nxt_slow_path(recf->deleting == NULL)) { return NXT_ERROR; } ret = nxt_router_engine_joints_delete(tmcf, recf, &tmcf->updating); if (nxt_slow_path(ret != NXT_OK)) { return ret; } return nxt_router_engine_joints_delete(tmcf, recf, &tmcf->deleting); } static nxt_int_t nxt_router_engine_joints_create(nxt_mp_t *mp, nxt_router_temp_conf_t *tmcf, nxt_router_engine_conf_t *recf, nxt_queue_t *sockets, nxt_array_t *array, nxt_work_handler_t handler) { nxt_work_t *work, *back; nxt_queue_link_t *qlk; nxt_socket_conf_joint_t *joint; for (qlk = nxt_queue_first(sockets); qlk != nxt_queue_tail(sockets); qlk = nxt_queue_next(qlk)) { back = nxt_mp_get(tmcf->mem_pool, sizeof(nxt_work_t)); if (nxt_slow_path(back == NULL)) { return NXT_ERROR; } back->next = NULL; back->handler = nxt_router_conf_wait; back->task = &tmcf->engine->task; back->obj = tmcf; back->data = NULL; work = nxt_array_add(array); if (nxt_slow_path(work == NULL)) { return NXT_ERROR; } work->next = NULL; work->handler = handler; work->task = &recf->engine->task; work->obj = back; joint = nxt_mp_alloc(mp, sizeof(nxt_socket_conf_joint_t)); if (nxt_slow_path(joint == NULL)) { return NXT_ERROR; } work->data = joint; joint->count = 1; joint->socket_conf = nxt_queue_link_data(qlk, nxt_socket_conf_t, link); joint->engine = recf->engine; nxt_queue_insert_tail(&joint->engine->joints, &joint->link); } return NXT_OK; } static void nxt_router_engine_socket_count(nxt_queue_t *sockets) { nxt_queue_link_t *qlk; nxt_socket_conf_t *skcf; for (qlk = nxt_queue_first(sockets); qlk != nxt_queue_tail(sockets); qlk = nxt_queue_next(qlk)) { skcf = nxt_queue_link_data(qlk, nxt_socket_conf_t, link); skcf->socket->count++; } } static nxt_int_t nxt_router_engine_joints_delete(nxt_router_temp_conf_t *tmcf, nxt_router_engine_conf_t *recf, nxt_queue_t *sockets) { nxt_work_t *work, *back; nxt_queue_link_t *qlk; for (qlk = nxt_queue_first(sockets); qlk != nxt_queue_tail(sockets); qlk = nxt_queue_next(qlk)) { back = nxt_mp_get(tmcf->mem_pool, sizeof(nxt_work_t)); if (nxt_slow_path(back == NULL)) { return NXT_ERROR; } back->next = NULL; back->handler = nxt_router_conf_wait; back->task = &tmcf->engine->task; back->obj = tmcf; back->data = NULL; work = nxt_array_add(recf->deleting); if (nxt_slow_path(work == NULL)) { return NXT_ERROR; } work->next = NULL; work->handler = nxt_router_listen_socket_delete; work->task = &recf->engine->task; work->obj = back; work->data = nxt_queue_link_data(qlk, nxt_socket_conf_t, link); } return NXT_OK; } static nxt_int_t nxt_router_threads_create(nxt_task_t *task, nxt_runtime_t *rt, nxt_router_temp_conf_t *tmcf) { nxt_int_t ret; nxt_uint_t i, threads; nxt_router_engine_conf_t *recf; recf = tmcf->engines->elts; threads = tmcf->conf->threads; for (i = tmcf->new_threads; i < threads; i++) { ret = nxt_router_thread_create(task, rt, recf[i].engine); if (nxt_slow_path(ret != NXT_OK)) { return ret; } } return NXT_OK; } static nxt_int_t nxt_router_thread_create(nxt_task_t *task, nxt_runtime_t *rt, nxt_event_engine_t *engine) { nxt_int_t ret; nxt_port_t *port; nxt_process_t *process; nxt_thread_link_t *link; nxt_thread_handle_t handle; link = nxt_zalloc(sizeof(nxt_thread_link_t)); if (nxt_slow_path(link == NULL)) { return NXT_ERROR; } link->start = nxt_router_thread_start; link->engine = engine; link->work.handler = nxt_router_thread_exit_handler; link->work.task = task; link->work.data = link; nxt_queue_insert_tail(&rt->engines, &engine->link); process = nxt_runtime_process_find(rt, nxt_pid); if (nxt_slow_path(process == NULL)) { return NXT_ERROR; } port = nxt_process_port_new(process); if (nxt_slow_path(port == NULL)) { return NXT_ERROR; } ret = nxt_port_socket_init(task, port, 0); if (nxt_slow_path(ret != NXT_OK)) { return ret; } port->engine = 0; port->type = NXT_PROCESS_ROUTER; engine->port = port; nxt_runtime_port_add(rt, port); ret = nxt_thread_create(&handle, link); if (nxt_slow_path(ret != NXT_OK)) { nxt_queue_remove(&engine->link); } return ret; } static void nxt_router_apps_sort(nxt_router_t *router, nxt_router_temp_conf_t *tmcf) { nxt_app_t *app; nxt_queue_link_t *qlk, *nqlk; for (qlk = nxt_queue_first(&router->apps); qlk != nxt_queue_tail(&router->apps); qlk = nqlk) { nqlk = nxt_queue_next(qlk); app = nxt_queue_link_data(qlk, nxt_app_t, link); nxt_queue_remove(&app->link); // RELEASE APP } nxt_queue_add(&router->apps, &tmcf->previous); nxt_queue_add(&router->apps, &tmcf->apps); } static void nxt_router_engines_post(nxt_router_temp_conf_t *tmcf) { nxt_uint_t n; nxt_router_engine_conf_t *recf; recf = tmcf->engines->elts; for (n = tmcf->engines->nelts; n != 0; n--) { nxt_router_engine_post(tmcf, recf); recf++; } } static void nxt_router_engine_post(nxt_router_temp_conf_t *tmcf, nxt_router_engine_conf_t *recf) { nxt_uint_t n; nxt_work_t *work; if (recf->creating != NULL) { work = recf->creating->elts; for (n = recf->creating->nelts; n != 0; n--) { nxt_event_engine_post(recf->engine, work); work++; tmcf->count++; } } if (recf->updating != NULL) { work = recf->updating->elts; for (n = recf->updating->nelts; n != 0; n--) { nxt_event_engine_post(recf->engine, work); work++; tmcf->count++; } } if (recf->deleting != NULL) { work = recf->deleting->elts; for (n = recf->deleting->nelts; n != 0; n--) { nxt_event_engine_post(recf->engine, work); work++; tmcf->count++; } } } static void nxt_router_app_data_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg); static nxt_port_handler_t nxt_router_app_port_handlers[] = { NULL, nxt_port_new_port_handler, nxt_port_change_log_file_handler, nxt_port_mmap_handler, nxt_router_app_data_handler, nxt_port_remove_pid_handler, }; static void nxt_router_thread_start(void *data) { nxt_task_t *task; nxt_thread_t *thread; nxt_thread_link_t *link; nxt_event_engine_t *engine; link = data; engine = link->engine; task = &engine->task; thread = nxt_thread(); /* STUB */ thread->runtime = engine->task.thread->runtime; engine->task.thread = thread; engine->task.log = thread->log; thread->engine = engine; thread->task = &engine->task; thread->fiber = &engine->fibers->fiber; nxt_mp_thread_adopt(engine->port->mem_pool); engine->port->socket.task = task; nxt_port_create(task, engine->port, nxt_router_app_port_handlers); engine->mem_pool = nxt_mp_create(4096, 128, 1024, 64); nxt_event_engine_start(engine); } static void nxt_router_listen_socket_create(nxt_task_t *task, void *obj, void *data) { nxt_work_t *work; nxt_listen_event_t *listen; nxt_listen_socket_t *ls; nxt_router_temp_conf_t *tmcf; nxt_socket_conf_joint_t *joint; work = obj; joint = data; ls = &joint->socket_conf->listen; listen = nxt_listen_event(task, ls); if (nxt_slow_path(listen == NULL)) { nxt_router_listen_socket_release(task, joint); return; } listen->socket.data = joint; tmcf = work->obj; nxt_event_engine_post(tmcf->engine, work); } nxt_inline nxt_listen_event_t * nxt_router_listen_event(nxt_queue_t *listen_connections, nxt_socket_conf_t *skcf) { nxt_socket_t fd; nxt_queue_link_t *qlk; nxt_listen_event_t *listen; fd = skcf->socket->fd; for (qlk = nxt_queue_first(listen_connections); qlk != nxt_queue_tail(listen_connections); qlk = nxt_queue_next(qlk)) { listen = nxt_queue_link_data(qlk, nxt_listen_event_t, link); if (fd == listen->socket.fd) { return listen; } } return NULL; } static void nxt_router_listen_socket_update(nxt_task_t *task, void *obj, void *data) { nxt_work_t *work; nxt_event_engine_t *engine; nxt_listen_event_t *listen; nxt_router_temp_conf_t *tmcf; nxt_socket_conf_joint_t *joint, *old; work = obj; joint = data; engine = task->thread->engine; listen = nxt_router_listen_event(&engine->listen_connections, joint->socket_conf); old = listen->socket.data; listen->socket.data = joint; tmcf = work->obj; nxt_event_engine_post(tmcf->engine, work); nxt_router_conf_release(task, old); } static void nxt_router_listen_socket_delete(nxt_task_t *task, void *obj, void *data) { nxt_work_t *work; nxt_socket_conf_t *skcf; nxt_listen_event_t *listen; nxt_event_engine_t *engine; nxt_router_temp_conf_t *tmcf; work = obj; skcf = data; engine = task->thread->engine; listen = nxt_router_listen_event(&engine->listen_connections, skcf); nxt_fd_event_delete(engine, &listen->socket); listen->timer.handler = nxt_router_listen_socket_close; listen->timer.work_queue = &engine->fast_work_queue; nxt_timer_add(engine, &listen->timer, 0); tmcf = work->obj; nxt_event_engine_post(tmcf->engine, work); } static void nxt_router_listen_socket_close(nxt_task_t *task, void *obj, void *data) { nxt_timer_t *timer; nxt_listen_event_t *listen; nxt_socket_conf_joint_t *joint; timer = obj; listen = nxt_timer_data(timer, nxt_listen_event_t, timer); joint = listen->socket.data; nxt_queue_remove(&listen->link); /* 'task' refers to listen->task and we cannot use after nxt_free() */ task = &task->thread->engine->task; nxt_free(listen); nxt_router_listen_socket_release(task, joint); } static void nxt_router_listen_socket_release(nxt_task_t *task, nxt_socket_conf_joint_t *joint) { nxt_socket_conf_t *skcf; nxt_router_socket_t *rtsk; nxt_thread_spinlock_t *lock; skcf = joint->socket_conf; rtsk = skcf->socket; lock = &skcf->router_conf->router->lock; nxt_thread_spin_lock(lock); if (--rtsk->count != 0) { rtsk = NULL; } nxt_thread_spin_unlock(lock); if (rtsk != NULL) { nxt_socket_close(task, rtsk->fd); nxt_free(rtsk); skcf->socket = NULL; } nxt_router_conf_release(task, joint); } static void nxt_router_conf_release(nxt_task_t *task, nxt_socket_conf_joint_t *joint) { nxt_socket_conf_t *skcf; nxt_router_conf_t *rtcf; nxt_thread_spinlock_t *lock; nxt_debug(task, "conf joint count: %D", joint->count); if (--joint->count != 0) { return; } nxt_queue_remove(&joint->link); skcf = joint->socket_conf; rtcf = skcf->router_conf; lock = &rtcf->router->lock; nxt_thread_spin_lock(lock); if (--skcf->count != 0) { rtcf = NULL; } else { nxt_queue_remove(&skcf->link); if (--rtcf->count != 0) { rtcf = NULL; } } nxt_thread_spin_unlock(lock); if (rtcf != NULL) { nxt_debug(task, "old router conf is destroyed"); nxt_mp_thread_adopt(rtcf->mem_pool); nxt_mp_destroy(rtcf->mem_pool); } if (nxt_queue_is_empty(&joint->engine->joints)) { nxt_thread_exit(task->thread); } } static void nxt_router_thread_exit_handler(nxt_task_t *task, void *obj, void *data) { nxt_thread_link_t *link; nxt_event_engine_t *engine; nxt_thread_handle_t handle; handle = (nxt_thread_handle_t) obj; link = data; nxt_thread_wait(handle); engine = link->engine; nxt_queue_remove(&engine->link); nxt_mp_destroy(engine->mem_pool); nxt_event_engine_free(engine); nxt_free(link); // TODO: free port } static const nxt_conn_state_t nxt_router_conn_read_state nxt_aligned(64) = { .ready_handler = nxt_router_conn_http_header_parse, .close_handler = nxt_router_conn_close, .error_handler = nxt_router_conn_error, .timer_handler = nxt_router_conn_timeout, .timer_value = nxt_router_conn_timeout_value, .timer_data = offsetof(nxt_socket_conf_t, header_read_timeout), }; static void nxt_router_conn_init(nxt_task_t *task, void *obj, void *data) { size_t size; nxt_conn_t *c; nxt_event_engine_t *engine; nxt_socket_conf_joint_t *joint; c = obj; joint = data; nxt_debug(task, "router conn init"); joint->count++; size = joint->socket_conf->header_buffer_size; c->read = nxt_buf_mem_alloc(c->mem_pool, size, 0); c->socket.data = NULL; engine = task->thread->engine; c->read_work_queue = &engine->fast_work_queue; c->write_work_queue = &engine->fast_work_queue; c->read_state = &nxt_router_conn_read_state; nxt_conn_read(engine, c); } static const nxt_conn_state_t nxt_router_conn_write_state nxt_aligned(64) = { .ready_handler = nxt_router_conn_ready, .close_handler = nxt_router_conn_close, .error_handler = nxt_router_conn_error, }; static void nxt_router_app_data_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg) { size_t dump_size; nxt_buf_t *b, *i, *last; nxt_conn_t *c; nxt_req_conn_link_t *rc; nxt_event_engine_t *engine; b = msg->buf; engine = task->thread->engine; rc = nxt_event_engine_request_find(engine, msg->port_msg.stream); if (nxt_slow_path(rc == NULL)) { nxt_debug(task, "request id %08uxD not found", msg->port_msg.stream); /* Mark buffers as read. */ for (i = b; i != NULL; i = i->next) { i->mem.pos = i->mem.free; } return; } c = rc->conn; dump_size = nxt_buf_used_size(b); if (dump_size > 300) { dump_size = 300; } nxt_debug(task, "%srouter app data (%z): %*s", msg->port_msg.last ? "last " : "", msg->size, dump_size, b->mem.pos); if (msg->size == 0) { b = NULL; } if (msg->port_msg.last != 0) { nxt_debug(task, "router data create last buf"); last = nxt_buf_sync_alloc(c->mem_pool, NXT_BUF_SYNC_LAST); if (nxt_slow_path(last == NULL)) { /* TODO pogorevaTb */ } nxt_buf_chain_add(&b, last); } if (b == NULL) { return; } if (c->write == NULL) { c->write = b; c->write_state = &nxt_router_conn_write_state; nxt_conn_write(task->thread->engine, c); } else { nxt_debug(task, "router data attach out bufs to existing chain"); nxt_buf_chain_add(&c->write, b); } } nxt_inline nxt_port_t * nxt_router_app_port(nxt_task_t *task) { nxt_port_t *port; nxt_runtime_t *rt; rt = task->thread->runtime; nxt_runtime_port_each(rt, port) { if (nxt_pid == port->pid) { continue; } if (port->type == NXT_PROCESS_WORKER) { return port; } } nxt_runtime_port_loop; return NULL; } static void nxt_router_conn_http_header_parse(nxt_task_t *task, void *obj, void *data) { size_t size, preread; nxt_int_t ret; nxt_buf_t *b; nxt_conn_t *c; nxt_app_parse_ctx_t *ap; nxt_socket_conf_joint_t *joint; nxt_app_request_header_t *h; c = obj; ap = data; b = c->read; nxt_debug(task, "router conn http header parse"); if (ap == NULL) { ap = nxt_mp_zget(c->mem_pool, sizeof(nxt_app_parse_ctx_t)); if (nxt_slow_path(ap == NULL)) { nxt_router_conn_close(task, c, data); return; } ret = nxt_app_http_req_init(task, ap); if (nxt_slow_path(ret != NXT_OK)) { nxt_router_conn_close(task, c, data); return; } c->socket.data = ap; ap->r.remote.start = nxt_sockaddr_address(c->remote); ap->r.remote.length = c->remote->address_length; } h = &ap->r.header; ret = nxt_app_http_req_parse(task, ap, b); nxt_debug(task, "http parse request: %d", ret); switch (nxt_expect(NXT_DONE, ret)) { case NXT_DONE: preread = nxt_buf_mem_used_size(&b->mem); nxt_debug(task, "router request header parsing complete, " "content length: %O, preread: %uz", h->parsed_content_length, preread); nxt_router_process_http_request(task, c, ap); return; case NXT_ERROR: nxt_router_conn_close(task, c, data); return; default: /* NXT_AGAIN */ if (h->done == 0) { if (c->read->mem.free == c->read->mem.end) { joint = c->listen->socket.data; size = joint->socket_conf->large_header_buffer_size; if (size > (size_t) nxt_buf_mem_size(&b->mem)) { b = nxt_buf_mem_alloc(c->mem_pool, size, 0); if (nxt_slow_path(b == NULL)) { nxt_router_conn_close(task, c, data); return; } size = c->read->mem.free - c->read->mem.pos; nxt_memcpy(b->mem.pos, c->read->mem.pos, size); b->mem.free += size; c->read = b; } else { // TODO 500 Too long request headers nxt_log_alert(task->log, "Too long request headers"); } } } if (ap->r.body.done == 0) { preread = nxt_buf_mem_used_size(&b->mem); if (h->parsed_content_length - preread > (size_t) nxt_buf_mem_free_size(&b->mem)) { b = nxt_buf_mem_alloc(c->mem_pool, h->parsed_content_length, 0); if (nxt_slow_path(b == NULL)) { // TODO 500 Failed to allocate buffer for request body nxt_log_alert(task->log, "Failed to allocate buffer for " "request body"); } b->mem.free = nxt_cpymem(b->mem.free, c->read->mem.pos, preread); c->read = b; } nxt_debug(task, "router request body read again, rest: %uz", h->parsed_content_length - preread); } } nxt_conn_read(task->thread->engine, c); } static void nxt_router_process_http_request(nxt_task_t *task, nxt_conn_t *c, nxt_app_parse_ctx_t *ap) { nxt_mp_t *port_mp; nxt_int_t res; nxt_port_t *port, *c_port; nxt_req_id_t req_id; nxt_app_wmsg_t wmsg; nxt_event_engine_t *engine; nxt_req_conn_link_t *rc; if (nxt_slow_path(nxt_app == NULL)) { // 500 Application not found nxt_log_alert(task->log, "application is NULL"); } port = nxt_router_app_port(task); if (nxt_slow_path(port == NULL)) { // 500 Application port not found nxt_log_alert(task->log, "application port not found"); } engine = task->thread->engine; do { req_id = nxt_random(&task->thread->random); } while (nxt_event_engine_request_find(engine, req_id) != NULL); rc = nxt_conn_request_add(c, req_id); if (nxt_slow_path(rc == NULL)) { // 500 Failed to allocate req->conn link nxt_log_alert(task->log, "failed to allocate req->conn link"); } nxt_event_engine_request_add(engine, rc); nxt_debug(task, "req_id %uxD linked to conn %p at engine %p", req_id, c, engine); port_mp = port->mem_pool; port->mem_pool = c->mem_pool; c_port = nxt_process_connected_port_find(port->process, engine->port->pid, engine->port->id); if (nxt_slow_path(c_port != engine->port)) { res = nxt_port_send_port(task, port, engine->port); if (nxt_slow_path(res != NXT_OK)) { // 500 Failed to send reply port nxt_log_alert(task->log, "failed to send reply port to application"); } nxt_process_connected_port_add(port->process, engine->port); } wmsg.port = port; wmsg.write = NULL; wmsg.buf = &wmsg.write; wmsg.stream = req_id; res = nxt_app->prepare_msg(task, &ap->r, &wmsg); if (nxt_slow_path(res != NXT_OK)) { // 500 Failed to prepare message nxt_log_alert(task->log, "failed to prepare message for application"); } nxt_debug(task, "about to send %d bytes buffer to worker port %d", nxt_buf_used_size(wmsg.write), wmsg.port->socket.fd); res = nxt_port_socket_write(task, wmsg.port, NXT_PORT_MSG_DATA, -1, req_id, engine->port->id, wmsg.write); if (nxt_slow_path(res != NXT_OK)) { // 500 Failed to send message nxt_log_alert(task->log, "failed to send message to application"); } port->mem_pool = port_mp; } static const nxt_conn_state_t nxt_router_conn_close_state nxt_aligned(64) = { .ready_handler = nxt_router_conn_free, }; static void nxt_router_conn_ready(nxt_task_t *task, void *obj, void *data) { nxt_buf_t *b; nxt_bool_t last; nxt_conn_t *c; nxt_work_queue_t *wq; nxt_debug(task, "router conn ready %p", obj); c = obj; b = c->write; wq = &task->thread->engine->fast_work_queue; last = 0; while (b != NULL) { if (!nxt_buf_is_sync(b)) { if (nxt_buf_used_size(b) > 0) { break; } } if (nxt_buf_is_last(b)) { last = 1; } nxt_work_queue_add(wq, b->completion_handler, task, b, b->parent); b = b->next; } c->write = b; if (b != NULL) { nxt_debug(task, "router conn %p has more data to write", obj); nxt_conn_write(task->thread->engine, c); } else { nxt_debug(task, "router conn %p no more data to write, last = %d", obj, last); if (last != 0) { nxt_debug(task, "enqueue router conn close %p (ready handler)", c); nxt_work_queue_add(wq, nxt_router_conn_close, task, c, c->socket.data); } } } static void nxt_router_conn_close(nxt_task_t *task, void *obj, void *data) { nxt_conn_t *c; c = obj; nxt_debug(task, "router conn close"); c->write_state = &nxt_router_conn_close_state; nxt_conn_close(task->thread->engine, c); } static void nxt_router_conn_free(nxt_task_t *task, void *obj, void *data) { nxt_conn_t *c; nxt_req_conn_link_t *rc; nxt_socket_conf_joint_t *joint; c = obj; nxt_debug(task, "router conn close done"); nxt_queue_each(rc, &c->requests, nxt_req_conn_link_t, link) { nxt_debug(task, "conn %p close, req %uxD", c, rc->req_id); nxt_event_engine_request_remove(task->thread->engine, rc); } nxt_queue_loop; nxt_queue_remove(&c->link); joint = c->listen->socket.data; task = &task->thread->engine->task; nxt_mp_release(c->mem_pool, c); nxt_router_conf_release(task, joint); } static void nxt_router_conn_error(nxt_task_t *task, void *obj, void *data) { nxt_conn_t *c; c = obj; nxt_debug(task, "router conn error"); c->write_state = &nxt_router_conn_close_state; nxt_conn_close(task->thread->engine, c); } static void nxt_router_conn_timeout(nxt_task_t *task, void *obj, void *data) { nxt_conn_t *c; nxt_timer_t *timer; timer = obj; nxt_debug(task, "router conn timeout"); c = nxt_read_timer_conn(timer); c->write_state = &nxt_router_conn_close_state; nxt_conn_close(task->thread->engine, c); } static nxt_msec_t nxt_router_conn_timeout_value(nxt_conn_t *c, uintptr_t data) { nxt_socket_conf_joint_t *joint; joint = c->listen->socket.data; return nxt_value_at(nxt_msec_t, joint->socket_conf, data); }