From ce4cd55e32c249c590c5153ae74999c218dace45 Mon Sep 17 00:00:00 2001
From: patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>
Date: Fri, 12 Dec 2008 18:57:05 +0000
Subject: Name changes for ZDS archiver

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1453 42af7a65-404d-4744-a932-0658087f49c3
---
 nuttx/net/uip/uip_udppoll.c | 127 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 127 insertions(+)
 create mode 100644 nuttx/net/uip/uip_udppoll.c

(limited to 'nuttx/net/uip/uip_udppoll.c')

diff --git a/nuttx/net/uip/uip_udppoll.c b/nuttx/net/uip/uip_udppoll.c
new file mode 100644
index 000000000..f64b53403
--- /dev/null
+++ b/nuttx/net/uip/uip_udppoll.c
@@ -0,0 +1,127 @@
+/****************************************************************************
+ * net/uip/uip_udppoll.c
+ * Poll for the availability of UDP TX data
+ *
+ *   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Adapted for NuttX from logic in uIP which also has a BSD-like license:
+ *
+ *   Original author Adam Dunkels <adam@dunkels.com>
+ *   Copyright () 2001-2003, Adam Dunkels.
+ *   All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#if defined(CONFIG_NET) && defined(CONFIG_NET_UDP)
+
+#include <sys/types.h>
+#include <debug.h>
+
+#include <net/uip/uipopt.h>
+#include <net/uip/uip.h>
+#include <net/uip/uip-arch.h>
+
+#include "uip_internal.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: uip_udppoll
+ *
+ * Description:
+ *   Poll a UDP "connection" structure for availability of TX data
+ *
+ * Parameters:
+ *   dev - The device driver structure to use in the send operation
+ *   conn - The UDP "connection" to poll for TX data
+ *
+ * Return:
+ *   None
+ *
+ * Assumptions:
+ *   Called from the interrupt level or with interrupts disabled.
+ *
+ ****************************************************************************/
+
+void uip_udppoll(struct uip_driver_s *dev, struct uip_udp_conn *conn)
+{
+  /* Verify that the UDP connection is valid */
+
+  if (conn->lport != 0)
+    {
+      /* Setup for the application callback */
+
+      dev->d_appdata = &dev->d_buf[UIP_LLH_LEN + UIP_IPUDPH_LEN];
+      dev->d_snddata = &dev->d_buf[UIP_LLH_LEN + UIP_IPUDPH_LEN];
+
+      dev->d_len     = 0;
+      dev->d_sndlen  = 0;
+
+      /* Perform the application callback */
+
+      uip_udpcallback(dev, conn, UIP_POLL);
+
+      /* If the application has data to send, setup the UDP/IP header */
+
+      if (dev->d_sndlen > 0)
+        {
+          uip_udpsend(dev, conn);
+          return;
+        }
+    }
+
+  /* Make sure that d_len is zero meaning that there is nothing to be sent */
+
+  dev->d_len   = 0;
+}
+
+#endif /* CONFIG_NET && CONFIG_NET_UDP */
-- 
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