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authorDaniel Stenberg <daniel@haxx.se>2003-10-07 21:54:04 +0000
committerDaniel Stenberg <daniel@haxx.se>2003-10-07 21:54:04 +0000
commit0436fbe226ca8ea71a751f4a86a228632e5cbc63 (patch)
tree5cf6478e89608a8000bd36014ba4032bcc9c0528 /ares/ares_fds.c
parent6494889e3ba6b1432258f0a8ed402723607cff21 (diff)
downloadcurl-0436fbe226ca8ea71a751f4a86a228632e5cbc63.tar.gz
ares 1.1.1 with collected applied patches
Diffstat (limited to 'ares/ares_fds.c')
-rw-r--r--ares/ares_fds.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/ares/ares_fds.c b/ares/ares_fds.c
new file mode 100644
index 000000000..d26499841
--- /dev/null
+++ b/ares/ares_fds.c
@@ -0,0 +1,58 @@
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * 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.
+ */
+
+static const char rcsid[] = "$Id$";
+
+#include <sys/types.h>
+
+#ifdef WIN32
+
+#else
+#include <sys/time.h>
+#endif
+
+#include "ares.h"
+#include "ares_private.h"
+
+int ares_fds(ares_channel channel, fd_set *read_fds, fd_set *write_fds)
+{
+ struct server_state *server;
+ int i, nfds;
+
+ /* No queries, no file descriptors. */
+ if (!channel->queries)
+ return 0;
+
+ nfds = 0;
+ for (i = 0; i < channel->nservers; i++)
+ {
+ server = &channel->servers[i];
+ if (server->udp_socket != -1)
+ {
+ FD_SET(server->udp_socket, read_fds);
+ if (server->udp_socket >= nfds)
+ nfds = server->udp_socket + 1;
+ }
+ if (server->tcp_socket != -1)
+ {
+ FD_SET(server->tcp_socket, read_fds);
+ if (server->qhead)
+ FD_SET(server->tcp_socket, write_fds);
+ if (server->tcp_socket >= nfds)
+ nfds = server->tcp_socket + 1;
+ }
+ }
+ return nfds;
+}