blob: eb790ae00d06f82f0d9d350ccd54d75a364dfae0 [file] [log] [blame]
/* Copyright (C) 2004 by Daniel Stenberg et al
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of M.I.T. not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. M.I.T. makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
#include "ares_setup.h"
#include <assert.h>
#include <stdlib.h>
#include "ares.h"
#include "ares_private.h"
* ares_cancel() cancels all ongoing requests/resolves that might be going on
* on the given channel. It does NOT kill the channel, use ares_destroy() for
* that.
void ares_cancel(ares_channel channel)
struct query *query;
struct list_node* list_head;
struct list_node* list_node;
int i;
list_head = &(channel->all_queries);
for (list_node = list_head->next; list_node != list_head; )
query = list_node->data;
list_node = list_node->next; /* since we're deleting the query */
query->callback(query->arg, ARES_ECANCELLED, 0, NULL, 0);
#ifndef NDEBUG
/* Freeing the query should remove it from all the lists in which it sits,
* so all query lists should be empty now.
for (i = 0; i < ARES_QID_TABLE_SIZE; i++)
for (i = 0; i < ARES_TIMEOUT_TABLE_SIZE; i++)
if (!(channel->flags & ARES_FLAG_STAYOPEN))
if (channel->servers)
for (i = 0; i < channel->nservers; i++)
ares__close_sockets(channel, &channel->servers[i]);