* resolv/resolv.h (RES_SNGLKUP): Define.
[glibc.git] / resolv / gai_cancel.c
blob19a0a9bb87a8601c92bd6b1788b5b049a96c9f81
1 /* Copyright (C) 2001, 2006 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #include <netdb.h>
21 #include <pthread.h>
23 #include <gai_misc.h>
26 int
27 gai_cancel (struct gaicb *gaicbp)
29 int result = 0;
30 int status;
32 /* Request the mutex. */
33 pthread_mutex_lock (&__gai_requests_mutex);
35 /* Find the request among those queued but not yet running. */
36 status = __gai_remove_request (gaicbp);
37 if (status == 0)
38 result = EAI_CANCELED;
39 else if (status > 0)
40 result = EAI_NOTCANCELED;
41 else
42 result = EAI_ALLDONE;
44 /* Release the mutex. */
45 pthread_mutex_unlock (&__gai_requests_mutex);
47 return result;