Revision 63:42cb563a25bc, committed 2014-05-13

Comitter:

mazgch

Date:

Tue May 13 12:31:33 2014 +0000

Parent:

60:1f65abb842be

Child:

64:ba4ea655a451

Commit message:

some progress on UDP

Changed in this revision

--- a/MDM.cpp	Tue May 13 07:13:27 2014 +0000
+++ b/MDM.cpp	Tue May 13 12:31:33 2014 +0000
@@ -3,8 +3,8 @@
 #include <string.h>
 #include "MDM.h"
 
-#define TRACE           (1/*1=off,0=trace*/)?:printf
-//#define DEBUG         // enable this for AT command debugging
+#define TRACE           (0/*1=off,0=trace*/)?:printf
+#define DEBUG         // enable this for AT command debugging
 #define PROFILE         "0"   // this is the psd profile used
 #define MAX_SIZE        256  // max expected messages
 // some helper 
@@ -121,12 +121,7 @@
                 // Socket Specific Command ---------------------------------
                 // +UUSORD: <socket>,<length>
                 } else if ((sscanf(cmd, "UUSORD: %d,%d", &a, &b) == 2) && 
-                    ISSOCKET(a) && (_sockets[a].state == SOCK_CONNECTED)) {
-                    TRACE("Socket %d: %d bytes pending\r\n", a, b);
-                    _sockets[a].pending = b;
-                // +UUSORF: <socket>,<length>
-                } else if ((sscanf(cmd, "UUSORF: %d,%d", &a, &b) == 2) && 
-                    ISSOCKET(a) && (_sockets[a].state == SOCK_CONNECTED)) {
+                    ISSOCKET(a) /*&& (_sockets[a].state == SOCK_CONNECTED)*/) {
                     TRACE("Socket %d: %d bytes pending\r\n", a, b);
                     _sockets[a].pending = b;
                 // +UUSOCL: <socket>
@@ -686,18 +681,18 @@
     return WAIT;
 }
 
-int MDMParser::socketSocket(IpProtocol ipproto)
+int MDMParser::socketSocket(IpProtocol ipproto, int port)
 {
     TRACE("socketSocket(%d)\r\n", ipproto);
-    const char* cmd;
     if(ipproto == IPPROTO_TCP) {
-        cmd = "AT+USOCR=6\r\n";
-    } else if(ipproto == IPPROTO_UDP) {
-        cmd = "AT+USOCR=17\r\n";
+        sendFormated("AT+USOCR=6\r\n");
+    } else if ((ipproto == IPPROTO_UDP) && (port == -1)){
+        sendFormated("AT+USOCR=17\r\n");
+    } else if (ipproto == IPPROTO_UDP){
+        sendFormated("AT+USOCR=17,%d\r\n", port);
     } else { // other types not supported
         return SOCKET_ERROR;
     }
-    sendFormated(cmd);
     int socket = -1;
     if (RESP_OK != waitFinalResp(_cbUSOCR, &socket))
         return SOCKET_ERROR;
@@ -785,12 +780,12 @@
 {
     TRACE("socketSendTo(%d," IPSTR "%d,,%d)\r\n", socket, IPNUM(ip),port,len);
     if(len > 0) {
-        sendFormated("AT+USOWR=%d,\"" IPSTR "\",%d,%d\r\n",socket,IPNUM(ip),port,len);
+        sendFormated("AT+USOST=%d,\"" IPSTR "\",%d,%d\r\n",socket,IPNUM(ip),port,len);
         if (RESP_PROMPT != waitFinalResp())
             return SOCKET_ERROR;
         wait_ms(50);
         send(buf, len);
-        if (RESP_OK != waitFinalResp()) 
+        if (RESP_OK != waitFinalResp())
             return SOCKET_ERROR;
     }
     return len;
@@ -873,10 +868,10 @@
     return WAIT;
 }
 
-int MDMParser::socketRecvFrom(int socket, char* buf, int len, IP* ip)
+int MDMParser::socketRecvFrom(int socket, IP* ip, int* port, char* buf, int len)
 {
     int cnt = 0;
-    TRACE("socketRecvFrom(%d,,%d" IPSTR ")\r\n", socket, len, IPNUM(*ip));
+    TRACE("socketRecvFrom(%d,,%d)\r\n", socket, len);
     if (!ISSOCKET(socket))
         return SOCKET_ERROR;
     memset(buf, '\0', len);
@@ -895,14 +890,13 @@
                 return SOCKET_ERROR;
             }
             *ip = param.ip;
-            //*port = param.port;
+            *port = param.port;
             len -= blk;
             cnt += blk;
             buf += blk;
             _sockets[socket].pending -= blk;
-        } else if ((_sockets[socket].state == SOCK_CONNECTED) && (
-                   (_sockets[socket].timeout_ms == (unsigned int)-1 /* blocking */) || 
-                   (timer.read_ms() < _sockets[socket].timeout_ms))){
+        } else if ((_sockets[socket].timeout_ms == (unsigned int)-1 /* blocking */) || 
+                   (timer.read_ms() < _sockets[socket].timeout_ms)) {
             // allow to receive unsolicited commands 
             waitFinalResp(NULL, NULL, 10);
         } else {

--- a/MDM.h	Tue May 13 07:13:27 2014 +0000
+++ b/MDM.h	Tue May 13 12:31:33 2014 +0000
@@ -146,11 +146,12 @@
     //! Socket error return codes
     #define SOCKET_ERROR -1
     
-    /** Create a socket for a ip protocol
+    /** Create a socket for a ip protocol (and optionaly bind)
         \param ipproto the protocol (UDP or TCP) 
+        \param port in case of UDP, this optional port where it is bind
         \return the socket handle if successful or SOCKET_ERROR on failure 
     */
-    int socketSocket(IpProtocol ipproto);
+    int socketSocket(IpProtocol ipproto, int port = -1);
     
     /** make a socket connection
         \param socket the socket handle
@@ -207,12 +208,13 @@
     
     /** Read from this socket
         \param socket the socket handle
+        \param ip the ip of host where the data originates from
+        \param port the port where the data originates from
         \param buf the buffer to read into
         \param len the size of the buffer to read into
-        \param ip the ip of host where the data originates from
         \return the number of bytes read or SOCKET_ERROR on failure 
     */
-    int socketRecvFrom(int socket, char* buf, int len, IP* ip);
+    int socketRecvFrom(int socket, IP* ip, int* port, char* buf, int len);
     
     /** Close a connectied socket (that was connected with #socketConnect)
         \param socket the socket handle

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/Endpoint.h	Tue May 13 12:31:33 2014 +0000
@@ -0,0 +1,65 @@
+/* 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.
+ */
+#ifndef ENDPOINT_H
+#define ENDPOINT_H
+
+#include "MDM.h"
+
+class UDPSocket;
+
+class Endpoint {
+    friend class UDPSocket;
+public:
+    Endpoint(void)  { 
+        _ip[0] = '\0'; 
+        _port = 0; 
+        _mdm = NULL; 
+    }
+    
+    void reset_address(void) { 
+        _ip[0] = '\0'; 
+        _port = 0; 
+    }
+    
+    int  set_address(const char* host, const int port) {
+        _ip[0] = '\0';
+        _port = 0;
+        if (_mdm == NULL)
+            _mdm = MDMParser::getInstance();
+        if (_mdm == NULL)
+            return -1;
+        // resove the host name (eventually does a dns lookup)
+        MDMParser::IP ip = _mdm->gethostbyname(host);
+        if (ip == NOIP)
+            return -1;
+        sprintf(_ip, IPSTR, IPNUM(ip));
+        _port = port;
+        return 0;
+    }
+    
+    char* get_address(void)     {   return _ip; }
+    
+    int get_port(void)          {   return _port; }
+    
+protected:
+    MDMParser* _mdm;
+    char _ip[17];
+    int _port;
+};
+
+#endif

--- a/Socket/TCPSocketConnection.h	Tue May 13 07:13:27 2014 +0000
+++ b/Socket/TCPSocketConnection.h	Tue May 13 12:31:33 2014 +0000
@@ -21,7 +21,8 @@
     */
     int connect(const char* host, const int port)
     {
-        _mdm = MDMParser::getInstance();
+        if (_mdm == NULL)
+            _mdm = MDMParser::getInstance();
         if (_mdm == NULL)
             return -1;
             

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/UDPSocket.h	Tue May 13 12:31:33 2014 +0000
@@ -0,0 +1,79 @@
+/* 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.
+ */
+
+#ifndef UDPSOCKET_H
+#define UDPSOCKET_H
+
+#include "Socket/Socket.h"
+#include "Socket/Endpoint.h"
+
+/**
+UDP Socket
+*/
+class UDPSocket : public Socket {
+
+public:
+    int init(void) 
+    {
+        if (_mdm == NULL)
+            _mdm = MDMParser::getInstance();
+        if (_mdm == NULL)
+            return -1;
+        return 0;
+    }
+    
+    int bind(int port) {
+        if (_socket < 0) {
+            _socket = _mdm->socketSocket(MDMParser::IPPROTO_UDP, port);
+            if (_socket < 0) {
+                return -1;
+            }
+        }
+        _mdm->socketSetBlocking(_socket, _timeout); 
+        return 0;
+    }
+    
+    int join_multicast_group(const char* address)   { return -1; }
+    
+    int set_broadcasting(bool broadcast=true)       { return -1; }
+    
+    int sendTo(Endpoint &remote, char *packet, int length)
+    {
+        char* str = remote.get_address();
+        int port = remote.get_port();
+        MDMParser::IP ip = _mdm->gethostbyname(str);
+        if (ip == NOIP)
+            return -1;
+        return _mdm->socketSendTo(_socket, ip, port, packet, length); 
+    }
+    
+    int receiveFrom(Endpoint &remote, char *buffer, int length)
+    { 
+        MDMParser::IP ip;
+        int port;
+        int ret = _mdm->socketRecvFrom(_socket, &ip, &port, buffer, length); 
+        if (ret >= 0) {
+            char str[17];
+            sprintf(str, IPSTR, IPNUM(ip));
+            remote.set_address(str, port);
+        }
+        return ret;
+    }
+};
+
+#endif