/* $NetBSD: timer.c,v 1.2.2.2 2024/02/25 15:47:24 martin Exp $ */ /* * Copyright (C) Internet Systems Consortium, Inc. ("ISC") * * SPDX-License-Identifier: MPL-2.0 * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, you can obtain one at https://mozilla.org/MPL/2.0/. * * See the COPYRIGHT file distributed with this work for additional * information regarding copyright ownership. */ #include #include #include #include "netmgr-int.h" struct isc_nm_timer { isc_refcount_t references; uv_timer_t timer; isc_nmhandle_t *handle; isc_nm_timer_cb cb; void *cbarg; }; void isc_nm_timer_create(isc_nmhandle_t *handle, isc_nm_timer_cb cb, void *cbarg, isc_nm_timer_t **timerp) { isc__networker_t *worker = NULL; isc_nmsocket_t *sock = NULL; isc_nm_timer_t *timer = NULL; int r; REQUIRE(isc__nm_in_netthread()); REQUIRE(VALID_NMHANDLE(handle)); REQUIRE(VALID_NMSOCK(handle->sock)); sock = handle->sock; worker = &sock->mgr->workers[isc_nm_tid()]; /* TODO: per-loop object cache */ timer = isc_mem_get(sock->mgr->mctx, sizeof(*timer)); *timer = (isc_nm_timer_t){ .cb = cb, .cbarg = cbarg }; isc_refcount_init(&timer->references, 1); isc_nmhandle_attach(handle, &timer->handle); r = uv_timer_init(&worker->loop, &timer->timer); UV_RUNTIME_CHECK(uv_timer_init, r); uv_handle_set_data((uv_handle_t *)&timer->timer, timer); *timerp = timer; } void isc_nm_timer_attach(isc_nm_timer_t *timer, isc_nm_timer_t **timerp) { REQUIRE(timer != NULL); REQUIRE(timerp != NULL && *timerp == NULL); isc_refcount_increment(&timer->references); *timerp = timer; } static void timer_destroy(uv_handle_t *uvhandle) { isc_nm_timer_t *timer = uv_handle_get_data(uvhandle); isc_nmhandle_t *handle = timer->handle; isc_mem_t *mctx = timer->handle->sock->mgr->mctx; isc_mem_put(mctx, timer, sizeof(*timer)); isc_nmhandle_detach(&handle); } void isc_nm_timer_detach(isc_nm_timer_t **timerp) { isc_nm_timer_t *timer = NULL; isc_nmhandle_t *handle = NULL; REQUIRE(timerp != NULL && *timerp != NULL); timer = *timerp; *timerp = NULL; handle = timer->handle; REQUIRE(isc__nm_in_netthread()); REQUIRE(VALID_NMHANDLE(handle)); REQUIRE(VALID_NMSOCK(handle->sock)); if (isc_refcount_decrement(&timer->references) == 1) { int r = uv_timer_stop(&timer->timer); UV_RUNTIME_CHECK(uv_timer_stop, r); uv_close((uv_handle_t *)&timer->timer, timer_destroy); } } static void timer_cb(uv_timer_t *uvtimer) { isc_nm_timer_t *timer = uv_handle_get_data((uv_handle_t *)uvtimer); REQUIRE(timer->cb != NULL); timer->cb(timer->cbarg, ISC_R_TIMEDOUT); } void isc_nm_timer_start(isc_nm_timer_t *timer, uint64_t timeout) { int r = uv_timer_start(&timer->timer, timer_cb, timeout, 0); UV_RUNTIME_CHECK(uv_timer_start, r); } void isc_nm_timer_stop(isc_nm_timer_t *timer) { int r = uv_timer_stop(&timer->timer); UV_RUNTIME_CHECK(uv_timer_stop, r); }