152 lines
No EOL
3.2 KiB
Text
152 lines
No EOL
3.2 KiB
Text
/*@!Encoding:1252*/
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includes
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{
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#include "Common.cin"
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#include "TcpUdpCommon.cin"
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}
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variables
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{
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UdpSocket gSocket;
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byte gRxBuffer[8192];
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}
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word UdpOpenSocket()
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{
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char Local_IP[16];
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dword localIp;
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word localPort;
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dword i = 0;
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CHAR errorText[200];
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localIp = SetupIp(Local_IP);
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if (localIp == INVALID_IP)
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return INVALID_IP;
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// Try to open socket
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do
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{
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localPort = random(65536-10240)+10240;
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gSocket = UdpSocket::Open(localIp, localPort);
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if (gSocket.GetLastSocketError() != 0)
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{
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gSocket.GetLastSocketErrorAsString(errorText, elcount(errorText));
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writeLineEx(0, 1, "<%NODE_NAME%> Error: could not open Udp socket on %s:%d, %s (%d)!", Local_IP, localPort, errorText, gSocket.GetLastSocketError());
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}
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}
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while (gSocket.GetLastSocketError() != 0 && i++ < 9);
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if (gSocket.GetLastSocketError() != 0)
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{
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writeLineEx(0, 1, "<%NODE_NAME%> Error: could not open Udp socket!");
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return gSocket.GetLastSocketError();
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}
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else
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{
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writeLineEx(0, 1, "<%NODE_NAME%> Udp socket opened on %s:%d.", Local_IP, localPort);
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}
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return 0;
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}
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word UdpConnectTo(char Remote_IP[], word remotePort)
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{
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dword remoteIp;
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// Convert IP string to Number
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remoteIp = IpGetAddressAsNumber(Remote_IP);
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if (remoteIp == INVALID_IP)
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{
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writeLineEx(0, 1, "<%NODE_NAME%> Error: invalid server Ip address!");
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return 1;
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}
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return UdpConnectTo(remoteIp, remotePort);
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}
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word UdpConnectTo(dword remoteIp, word remotePort)
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{
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long fehler;
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// Try to open a socket
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fehler = UdpOpenSocket();
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if (fehler != 0)
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{
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gSocketState = ERROR;
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return fehler;
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}
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gRemoteIP = remoteIp;
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gRemotePort = remotePort;
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gSocketState = OK;
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return 0;
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}
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void UdpRecv()
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{
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int result;
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if (gSocketState != OK)
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{
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writeLineEx(0, 2, "UdpRecv: Socket status is not OK!");
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return;
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}
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result = gSocket.ReceiveFrom(gRxBuffer, elcount(gRxBuffer));
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if (result != 0) // Calling OnUdpReceive otherwise
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{
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gIpLastErr = gSocket.GetLastSocketError();
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if (gIpLastErr != WSA_IO_PENDING) // Calling OnUdpReceive otherwise
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{
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gSocket.GetLastSocketErrorAsString(gIpLastErrStr, elcount(gIpLastErrStr));
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writeLineEx(0, 2, "<%NODE_NAME%> UdpRecv Error (%d): %s", gIpLastErr, gIpLastErrStr);
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gSocket.Close();
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gSocketState = CLOSED;
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}
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}
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return;
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}
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void UdpSnd(byte buffer[], word length)
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{
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//char str[20*3];
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switch (gSocketState)
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{
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case CLOSED:
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UdpConnectTo(gRemoteIP, gRemotePort);
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if (gSocketState != OK)
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{
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writeLineEx(0, 2, "UdpSnd: Reconnecting failed!");
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return;
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}
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case OK:
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break;
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default:
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writeLineEx(0, 2, "UdpSnd: Socket status is not OK!");
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return;
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}
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//bin_to_strhex(buffer, str);
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//writeLineEx(0, 1, "<%NODE_NAME%> UdpSnd: %s (L<>nge: %d)", str, length);
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if (gSocket.SendTo(gRemoteIP, gRemotePort, buffer, length) != 0)
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{
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gIpLastErr = gSocket.GetLastSocketError();
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if (gIpLastErr != WSA_IO_PENDING)
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{
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gSocket.GetLastSocketErrorAsString(gIpLastErrStr, elcount(gIpLastErrStr));
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writeLineEx(0, 2, "<%NODE_NAME%> UdpSnd error (%d): %s", gIpLastErr, gIpLastErrStr);
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gSocket.Close();
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gSocketState = CLOSED;
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}
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}
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} |