90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
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/*
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* services/outbound_list.c - keep list of outbound serviced queries.
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*
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* Copyright (c) 2007, NLnet Labs. All rights reserved.
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*
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* This software is open source.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of the NLNET LABS nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \file
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*
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* This file contains functions to help a module keep track of the
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* queries it has outstanding to authoritative servers.
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*/
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#include "config.h"
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#include <sys/time.h>
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#include "services/outbound_list.h"
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#include "services/outside_network.h"
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void
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outbound_list_init(struct outbound_list* list)
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{
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list->first = NULL;
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}
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void
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outbound_list_clear(struct outbound_list* list)
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{
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struct outbound_entry *p, *np;
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p = list->first;
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while(p) {
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np = p->next;
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outnet_serviced_query_stop(p->qsent, p);
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/* in region, no free needed */
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p = np;
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}
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outbound_list_init(list);
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}
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void
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outbound_list_insert(struct outbound_list* list, struct outbound_entry* e)
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{
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if(list->first)
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list->first->prev = e;
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e->next = list->first;
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e->prev = NULL;
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list->first = e;
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}
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void
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outbound_list_remove(struct outbound_list* list, struct outbound_entry* e)
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{
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if(!e)
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return;
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outnet_serviced_query_stop(e->qsent, e);
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if(e->next)
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e->next->prev = e->prev;
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if(e->prev)
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e->prev->next = e->next;
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else list->first = e->next;
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/* in region, no free needed */
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}
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