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