mirror of
https://gitlab.isc.org/isc-projects/bind9
synced 2025-08-22 10:10:06 +00:00
a55589f881
Removed socket.c, socket.h, and all references to isc_socket_t, isc_socketmgr_t, isc_sockevent_t, etc.
125 lines
3.0 KiB
C
125 lines
3.0 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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#include <isc/hp.h>
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#include <isc/managers.h>
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#include <isc/util.h>
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#include "netmgr_p.h"
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#include "task_p.h"
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#include "timer_p.h"
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isc_result_t
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isc_managers_create(isc_mem_t *mctx, size_t workers, size_t quantum,
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isc_nm_t **netmgrp, isc_taskmgr_t **taskmgrp,
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isc_timermgr_t **timermgrp) {
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isc_result_t result;
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isc_nm_t *netmgr = NULL;
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isc_taskmgr_t *taskmgr = NULL;
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isc_timermgr_t *timermgr = NULL;
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/*
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* We have ncpus network threads, ncpus old network threads - make
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* it 4x just to be on the safe side.
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*/
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isc_hp_init(4 * workers);
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REQUIRE(netmgrp != NULL && *netmgrp == NULL);
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isc__netmgr_create(mctx, workers, &netmgr);
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*netmgrp = netmgr;
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INSIST(netmgr != NULL);
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REQUIRE(taskmgrp == NULL || *taskmgrp == NULL);
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if (taskmgrp != NULL) {
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INSIST(netmgr != NULL);
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result = isc__taskmgr_create(mctx, quantum, netmgr, &taskmgr);
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if (result != ISC_R_SUCCESS) {
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UNEXPECTED_ERROR(__FILE__, __LINE__,
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"isc_taskmgr_create() failed: %s",
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isc_result_totext(result));
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goto fail;
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}
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*taskmgrp = taskmgr;
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}
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REQUIRE(timermgrp == NULL || *timermgrp == NULL);
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if (timermgrp != NULL) {
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result = isc__timermgr_create(mctx, &timermgr);
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if (result != ISC_R_SUCCESS) {
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UNEXPECTED_ERROR(__FILE__, __LINE__,
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"isc_timermgr_create() failed: %s",
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isc_result_totext(result));
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goto fail;
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}
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*timermgrp = timermgr;
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}
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return (ISC_R_SUCCESS);
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fail:
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isc_managers_destroy(netmgrp, taskmgrp, timermgrp);
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return (result);
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}
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void
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isc_managers_destroy(isc_nm_t **netmgrp, isc_taskmgr_t **taskmgrp,
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isc_timermgr_t **timermgrp) {
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/*
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* If we have a taskmgr to clean up, then we must also have a netmgr.
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*/
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REQUIRE(taskmgrp == NULL || netmgrp != NULL);
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/*
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* The sequence of operations here is important:
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*
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* 1. Initiate shutdown of the taskmgr, sending shutdown events to
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* all tasks that are not already shutting down.
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*/
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if (taskmgrp != NULL) {
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INSIST(*taskmgrp != NULL);
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isc__taskmgr_shutdown(*taskmgrp);
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}
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/*
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* 2. Initiate shutdown of the network manager, freeing clients
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* and other resources and preventing new connections, but do
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* not stop processing of existing events.
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*/
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if (netmgrp != NULL) {
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INSIST(*netmgrp != NULL);
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isc__netmgr_shutdown(*netmgrp);
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}
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/*
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* 3. Finish destruction of the task manager when all tasks
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* have completed.
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*/
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if (taskmgrp != NULL) {
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isc__taskmgr_destroy(taskmgrp);
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}
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/*
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* 4. Finish destruction of the netmgr, and wait until all
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* references have been released.
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*/
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if (netmgrp != NULL) {
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isc__netmgr_destroy(netmgrp);
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}
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/*
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* 5. Clean up the remaining managers.
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*/
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if (timermgrp != NULL) {
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INSIST(*timermgrp != NULL);
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isc__timermgr_destroy(timermgrp);
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}
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}
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