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-rw-r--r--lib/isc/netmgr/timer.c120
1 files changed, 120 insertions, 0 deletions
diff --git a/lib/isc/netmgr/timer.c b/lib/isc/netmgr/timer.c
new file mode 100644
index 0000000..8328775
--- /dev/null
+++ b/lib/isc/netmgr/timer.c
@@ -0,0 +1,120 @@
+/*
+ * 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 <uv.h>
+
+#include <isc/netmgr.h>
+#include <isc/util.h>
+
+#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);
+}