Changes between Initial Version and Version 1 of Docs/Prog/Manual/ApplicationLibraries/lib825ev/Comm/CCommClient

Timestamp:

04/09/18 14:13:59 (7 years ago)

Author:

Don Wilson

Comment:

--

Docs/Prog/Manual/ApplicationLibraries/lib825ev/Comm/CCommClient

@@ +1 @@
+[[TOC]]
+
+= CCommClient =
+
+CCommClient is a C++ class that is provided to simplify 825 TCP/IP client communications. CCommClient is inherited from the CComm base class.
+
+=== Constructor ===
+
+=== Member Functions ===
+
+
+==== Description ====
+
+
+
+
+==== Example ====
+
+{{{
+   if(commTypeSelection == CLIENT)
+   {
+      string svrIP = "192.168.1.25";
+      int svrPort = 8001;
+      CCommClient *pClient = new CCommClient(svrIP, svrPort);
+      pComm = pClient;
+   }
+   pComm->Open();
+
+   pComm->AddRcvEvent(CHR_STX, CHR_ETX, CommEventDataMsg, 0, NULL);
+
+}
+
+void StopCommunications(void)
+{ 
+   if(pComm != NULL)
+   {
+       pComm->Close();
+       delete pComm;
+       pComm = NULL;
+   }
+}
+
+COMM_EVENT(DataMsg)
+{
+   uint8* buf = pConnection->GetRcvBuffer();
+   buf[pConnection->GetRcvPos() - 1] = '\0';
+
+   printf("rcvd [%s]\r\n", buf);
+
+   if(buf[1] == 'T') // Received <STX>T<ETX> return timeval
+   {
+       time_t tmval;
+       time(&tmval);  // Get timeval
+
+       char response[12];
+       sprintf(response, "%d\n", tmval);
+       // pConnection isn't important in the case of serial port, but if TCP/IP server it is important to send
+       // the response to the connection that the message was received from.
+       pComm->Send(pConnection, response, strlen(response);
+    }
+
+
+   return 0;
+}
+
+
+}}}