Diff: Socket/UDPSocket.cpp

Revision:

0:f2039204c8f6

Child:

2:eb83da9deb2d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/UDPSocket.cpp	Mon Jun 02 23:34:10 2014 +0000
@@ -0,0 +1,154 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+/* Copyright (C) 2014 Wiznet, MIT License
+ *  port to the Wiznet Module WizFi250
+ */
+
+#include "UDPSocket.h"
+
+#include <string>
+#include <algorithm>
+
+UDPSocket::UDPSocket()
+{
+    endpoint_connected = false;
+}
+
+int UDPSocket::init(void)
+{
+    _server = false;
+    return 0;
+}
+
+// Server initialization
+int UDPSocket::bind(int port)
+{
+    _port = port;
+    _server = true;
+    return 0;
+}
+
+int UDPSocket::sendTo(Endpoint &remote, char *packet, int length)
+{
+    Timer tmr;
+    int idx = 0;
+
+    if (_cid < 0 && _wizfi250->isAssociated())
+    {
+        if (_server)
+        {
+            _cid = _wizfi250->listen(WizFi250::PROTO_UDP, _port);
+        }
+        else
+        {
+            _cid = _wizfi250->open(WizFi250::PROTO_UDP, remote.get_address(), remote.get_port(), _port);
+        }
+        if (_cid < 0)   return -1;
+    }
+
+    tmr.start();
+
+    while ((tmr.read_ms() < _timeout) || _blocking)
+    {
+        if(_server)
+        {
+            idx += _wizfi250->sendto(_cid, packet, length, remote.get_address(), remote.get_port());
+        }
+        else
+        {
+            idx += _wizfi250->send(_cid, packet, length);
+        }
+        if (idx < 0)
+        {
+            if (!_wizfi250->isConnected(_cid)) _cid = -1;
+        }
+
+        if (idx == length)
+            return idx;
+    }
+    return (idx == 0) ? -1 : idx;
+}
+
+
+int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length)
+{
+    Timer tmr;
+    int idx = 0;
+    int time = -1;
+    char ip[16];
+    int port;
+
+    if(_cid < 0 && _wizfi250->isAssociated())
+    {
+        // Socket open
+        if (_server) {
+            _cid = _wizfi250->listen(WizFi250::PROTO_UDP, _port);
+            DBG("TEST CID : %d",_cid);
+        }
+        else
+        {
+            _cid = _wizfi250->open(WizFi250::PROTO_UDP, remote.get_address(), remote.get_port(), _port);
+        }
+        if (_cid < 0)   return -1;
+    }
+
+    if (_blocking)
+    {
+        tmr.start();
+        while (time < _timeout + 20)
+        {
+            if(_wizfi250->readable(_cid))
+            {
+                break;
+            }
+            time = tmr.read_ms();
+        }
+        if (time >= _timeout + 20)
+        {
+            return -1;
+        }
+    }
+
+    tmr.reset();
+    time = -1;
+    tmr.start();
+
+    while (time < _timeout)
+    {
+        if(_server)
+        {
+            idx += _wizfi250->recvfrom(_cid, &buffer[idx], length - idx, ip, &port);
+        }
+        else
+        {
+            idx += _wizfi250->recv(_cid, &buffer[idx], length - idx);
+        }
+
+        if (idx == length)
+            break;
+
+        time = tmr.read_ms();
+    }
+
+    if (_server)
+    {
+        remote.set_address(ip, port);
+    }
+
+    return (idx==0) ? -1 : idx;
+}