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author | Remko Tronçon <git@el-tramo.be> | 2010-03-28 15:46:49 (GMT) |
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committer | Remko Tronçon <git@el-tramo.be> | 2010-03-28 15:46:49 (GMT) |
commit | f53a1ef582494458301b97bf6e546be52d7ff7e8 (patch) | |
tree | 7571b5cbcbd8a8f1dd1c966c9045b6cb69f0e295 /3rdParty/CAres/src/ares_getsock.c | |
parent | 638345680d72ca6acaf123f2c8c1c391f696e371 (diff) | |
download | swift-contrib-f53a1ef582494458301b97bf6e546be52d7ff7e8.zip swift-contrib-f53a1ef582494458301b97bf6e546be52d7ff7e8.tar.bz2 |
Moving submodule contents back.
Diffstat (limited to '3rdParty/CAres/src/ares_getsock.c')
-rw-r--r-- | 3rdParty/CAres/src/ares_getsock.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/3rdParty/CAres/src/ares_getsock.c b/3rdParty/CAres/src/ares_getsock.c new file mode 100644 index 0000000..a25b83a --- /dev/null +++ b/3rdParty/CAres/src/ares_getsock.c @@ -0,0 +1,75 @@ +/* $Id: ares_getsock.c,v 1.8 2009-11-02 11:55:53 yangtse Exp $ */ + +/* Copyright (C) 2005 - 2007, Daniel Stenberg + * + * 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" + +#ifdef HAVE_SYS_TIME_H +#include <sys/time.h> +#endif + +#include "ares.h" +#include "ares_private.h" + +int ares_getsock(ares_channel channel, + int *s, + int numsocks) /* size of the 'socks' array */ +{ + struct server_state *server; + int i; + int sockindex=0; + int bitmap = 0; + unsigned int setbits = 0xffffffff; + + ares_socket_t *socks = (ares_socket_t *)s; + + /* Are there any active queries? */ + int active_queries = !ares__is_list_empty(&(channel->all_queries)); + + for (i = 0; + (i < channel->nservers) && (sockindex < ARES_GETSOCK_MAXNUM); + i++) + { + server = &channel->servers[i]; + /* We only need to register interest in UDP sockets if we have + * outstanding queries. + */ + if (active_queries && server->udp_socket != ARES_SOCKET_BAD) + { + if(sockindex >= numsocks) + break; + socks[sockindex] = server->udp_socket; + bitmap |= ARES_GETSOCK_READABLE(setbits, sockindex); + sockindex++; + } + /* We always register for TCP events, because we want to know + * when the other side closes the connection, so we don't waste + * time trying to use a broken connection. + */ + if (server->tcp_socket != ARES_SOCKET_BAD) + { + if(sockindex >= numsocks) + break; + socks[sockindex] = server->tcp_socket; + bitmap |= ARES_GETSOCK_READABLE(setbits, sockindex); + + if (server->qhead && active_queries) + /* then the tcp socket is also writable! */ + bitmap |= ARES_GETSOCK_WRITABLE(setbits, sockindex); + + sockindex++; + } + } + return bitmap; +} |