65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
/* $Id$ */
|
|
|
|
/* 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 "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_ETIMEOUT, 0, NULL, 0);
|
|
ares__free_query(query);
|
|
}
|
|
#ifndef NDEBUG
|
|
/* Freeing the query should remove it from all the lists in which it sits,
|
|
* so all query lists should be empty now.
|
|
*/
|
|
assert(ares__is_list_empty(&(channel->all_queries)));
|
|
for (i = 0; i < ARES_QID_TABLE_SIZE; i++)
|
|
{
|
|
assert(ares__is_list_empty(&(channel->queries_by_qid[i])));
|
|
}
|
|
for (i = 0; i < ARES_TIMEOUT_TABLE_SIZE; i++)
|
|
{
|
|
assert(ares__is_list_empty(&(channel->queries_by_timeout[i])));
|
|
}
|
|
#endif
|
|
if (!(channel->flags & ARES_FLAG_STAYOPEN))
|
|
{
|
|
if (channel->servers)
|
|
{
|
|
for (i = 0; i < channel->nservers; i++)
|
|
ares__close_sockets(channel, &channel->servers[i]);
|
|
}
|
|
}
|
|
}
|