1 files changed, 144 insertions, 0 deletions
diff --git a/contrib/bind9/lib/isc/timer_api.c b/contrib/bind9/lib/isc/timer_api.c
new file mode 100644
index 000000000000..5a9bf9d859ca
--- /dev/null
+++ b/contrib/bind9/lib/isc/timer_api.c
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2009  Internet Systems Consortium, Inc. ("ISC")
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $Id: timer_api.c,v 1.4 2009-09-02 23:48:02 tbox Exp $ */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include <isc/app.h>
+#include <isc/magic.h>
+#include <isc/mutex.h>
+#include <isc/once.h>
+#include <isc/timer.h>
+#include <isc/util.h>
+
+static isc_mutex_t createlock;
+static isc_once_t once = ISC_ONCE_INIT;
+static isc_timermgrcreatefunc_t timermgr_createfunc = NULL;
+
+static void
+initialize(void) {
+	RUNTIME_CHECK(isc_mutex_init(&createlock) == ISC_R_SUCCESS);
+}
+
+isc_result_t
+isc_timer_register(isc_timermgrcreatefunc_t createfunc) {
+	isc_result_t result = ISC_R_SUCCESS;
+
+	RUNTIME_CHECK(isc_once_do(&once, initialize) == ISC_R_SUCCESS);
+
+	LOCK(&createlock);
+	if (timermgr_createfunc == NULL)
+		timermgr_createfunc = createfunc;
+	else
+		result = ISC_R_EXISTS;
+	UNLOCK(&createlock);
+
+	return (result);
+}
+
+isc_result_t
+isc_timermgr_createinctx(isc_mem_t *mctx, isc_appctx_t *actx,
+			 isc_timermgr_t **managerp)
+{
+	isc_result_t result;
+
+	LOCK(&createlock);
+
+	REQUIRE(timermgr_createfunc != NULL);
+	result = (*timermgr_createfunc)(mctx, managerp);
+
+	UNLOCK(&createlock);
+
+	if (result == ISC_R_SUCCESS)
+		isc_appctx_settimermgr(actx, *managerp);
+
+	return (result);
+}
+
+isc_result_t
+isc_timermgr_create(isc_mem_t *mctx, isc_timermgr_t **managerp) {
+	isc_result_t result;
+
+	LOCK(&createlock);
+
+	REQUIRE(timermgr_createfunc != NULL);
+	result = (*timermgr_createfunc)(mctx, managerp);
+
+	UNLOCK(&createlock);
+
+	return (result);
+}
+
+void
+isc_timermgr_destroy(isc_timermgr_t **managerp) {
+	REQUIRE(*managerp != NULL && ISCAPI_TIMERMGR_VALID(*managerp));
+
+	(*managerp)->methods->destroy(managerp);
+
+	ENSURE(*managerp == NULL);
+}
+
+isc_result_t
+isc_timer_create(isc_timermgr_t *manager, isc_timertype_t type,
+		 isc_time_t *expires, isc_interval_t *interval,
+		 isc_task_t *task, isc_taskaction_t action, const void *arg,
+		 isc_timer_t **timerp)
+{
+	REQUIRE(ISCAPI_TIMERMGR_VALID(manager));
+
+	return (manager->methods->timercreate(manager, type, expires,
+					      interval, task, action, arg,
+					      timerp));
+}
+
+void
+isc_timer_attach(isc_timer_t *timer, isc_timer_t **timerp) {
+	REQUIRE(ISCAPI_TIMER_VALID(timer));
+	REQUIRE(timerp != NULL && *timerp == NULL);
+
+	timer->methods->attach(timer, timerp);
+
+	ENSURE(*timerp == timer);
+}
+
+void
+isc_timer_detach(isc_timer_t **timerp) {
+	REQUIRE(timerp != NULL && ISCAPI_TIMER_VALID(*timerp));
+
+	(*timerp)->methods->detach(timerp);
+
+	ENSURE(*timerp == NULL);
+}
+
+isc_result_t
+isc_timer_reset(isc_timer_t *timer, isc_timertype_t type,
+		isc_time_t *expires, isc_interval_t *interval,
+		isc_boolean_t purge)
+{
+	REQUIRE(ISCAPI_TIMER_VALID(timer));
+
+	return (timer->methods->reset(timer, type, expires, interval, purge));
+}
+
+isc_result_t
+isc_timer_touch(isc_timer_t *timer) {
+	REQUIRE(ISCAPI_TIMER_VALID(timer));
+
+	return (timer->methods->touch(timer));
+}