From 0436fbe226ca8ea71a751f4a86a228632e5cbc63 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Tue, 7 Oct 2003 21:54:04 +0000
Subject: ares 1.1.1 with collected applied patches

---
 ares/ares_timeout.c | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 ares/ares_timeout.c

(limited to 'ares/ares_timeout.c')

diff --git a/ares/ares_timeout.c b/ares/ares_timeout.c
new file mode 100644
index 000000000..3cb86f44a
--- /dev/null
+++ b/ares/ares_timeout.c
@@ -0,0 +1,67 @@
+/* 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 <time.h>
+#include "ares.h"
+#include "ares_private.h"
+
+struct timeval *ares_timeout(ares_channel channel, struct timeval *maxtv,
+			     struct timeval *tvbuf)
+{
+  struct query *query;
+  time_t now;
+  int offset, min_offset;
+
+  /* No queries, no timeout (and no fetch of the current time). */
+  if (!channel->queries)
+    return maxtv;
+
+  /* Find the minimum timeout for the current set of queries. */
+  time(&now);
+  min_offset = -1;
+  for (query = channel->queries; query; query = query->next)
+    {
+      if (query->timeout == 0)
+	continue;
+      offset = query->timeout - now;
+      if (offset < 0)
+	offset = 0;
+      if (min_offset == -1 || offset < min_offset)
+	min_offset = offset;
+    }
+
+  /* If we found a minimum timeout and it's sooner than the one
+   * specified in maxtv (if any), return it.  Otherwise go with
+   * maxtv.
+   */
+  if (min_offset != -1 && (!maxtv || min_offset <= maxtv->tv_sec))
+    {
+      tvbuf->tv_sec = min_offset;
+      tvbuf->tv_usec = 0;
+      return tvbuf;
+    }
+  else
+    return maxtv;
+}
-- 
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