Nelson Neves
Simple code to demonstrate how to map an RPC global function that receives 3 parameters via REST HTTP Get request. Note: Demo program to be used on the GeekSessionLab Talk (November 2011). http://devrendezvous.com/?lang=en
Dependencies: EthernetNetIf mbed HTTPServer
Diff: main.cpp
- Revision:
- 0:3abfd4f28df8
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Oct 27 23:11:50 2011 +0000
@@ -0,0 +1,153 @@
+/* //---------------------------------------------------------------------------------------------
+// RPC DemoCmd
+http://192.168.1.100/rpc/democmd/run%201000%20100%201
+http://192.168.1.100/rpc/democmd/run 1000 100 1
+
+//---------------------------------------------------------------------------------------------
+// resources
+//---------------------------------------------------------------------------------------------
+http://mbed.org/handbook/C-Data-Types
+http://mbed.org/cookbook/RPC-Interface-Library
+http://mbed.org/cookbook/HTTP-Server
+http://mbed.org/cookbook/Ethernet
+http://mbed.org/handbook/Ticker
+//--------------------------------------------------------------------------------------------- */
+#include "mbed.h"
+#include "EthernetNetIf.h"
+#include "HTTPServer.h"
+#include "RPCFunction.h"
+//---------------------------------------------------------------------------------------------
+DigitalOut myled(LED1);
+Serial pc(USBTX, USBRX); // tx, rx
+//---------------------------------------------------------------------------------------------
+#define internaldebug // send debug messages to USB Serial port (9600,1,N)
+//#define dhcpenable // auto-setup IP Address from DHCP router
+//---------------------------------------------------------------------------------------------
+// Timer Interrupt - NetPool
+//---------------------------------------------------------------------------------------------
+Ticker netpool;
+//---------------------------------------------------------------------------------------------
+// Ethernet Object Setup
+//---------------------------------------------------------------------------------------------
+#ifdef dhcpenable
+ EthernetNetIf eth;
+#else
+ EthernetNetIf eth(
+ IpAddr(192,168,1,100), //IP Address
+ IpAddr(255,255,255,0), //Network Mask
+ IpAddr(192,168,1,254), //Gateway
+ IpAddr(192,168,1,254) //DNS
+ );
+#endif
+//---------------------------------------------------------------------------------------------
+// HTTP Server
+//---------------------------------------------------------------------------------------------
+HTTPServer httpserver;
+LocalFileSystem fs("webfs");
+
+//---------------------------------------------------------------------------------------------
+
+//---------------------------------------------------------------------------------------------
+// ISR -> Pool Ethernet - will be triggered by netpool ticker
+//---------------------------------------------------------------------------------------------
+void netpoolupdate()
+{
+ Net::poll();
+}
+//---------------------------------------------------------------------------------------------
+
+//---------------------------------------------------------------------------------------------
+// RPC TList Commands (Task/Job List)
+//---------------------------------------------------------------------------------------------
+void rpc_democmd(char *input, char *output)
+{
+ int iarg1 = 0;
+ int iarg2 = 0;
+ int iarg3 = 0;
+
+ sscanf(input, "%i %i %i", &iarg1, &iarg2, &iarg3);
+
+ #ifdef internaldebug
+ printf("Calling RCP Function DemoCmd.\r\n");
+ printf("INPUT: %s.\r\n", input);
+ printf("OUTPUT: %s.\r\n", output);
+ printf("ARG1: %d\r\n", iarg1);
+ printf("ARG2: %d\r\n", iarg2);
+ printf("ARG3: %d\r\n", iarg3);
+ #endif
+
+ sprintf(output, "<html><body>RCP Demo Cmd Completed!</body></html>");
+}
+//---------------------------------------------------------------------------------------------
+
+
+//---------------------------------------------------------------------------------------------
+// MAIN
+//---------------------------------------------------------------------------------------------
+int main()
+{
+ // Set Serial Port Transfer Rate
+ pc.baud(115200);
+
+ //--------------------------------------------------------
+ // Setting Ethernet
+ //--------------------------------------------------------
+ #ifdef internaldebug
+ printf("\r\nSetting up Ethernet interface!\r\n");
+ #endif
+ // Create return object for error check
+ EthernetErr ethErr = eth.setup();
+ if(ethErr)
+ {
+ #ifdef internaldebug
+ printf("\r\nError %d in Ethernet setup.\r\n", ethErr);
+ #endif
+ return -1;
+ }
+ #ifdef internaldebug
+ printf("\r\nEthernet setup completed with success!\r\n");
+ #endif
+ //--------------------------------------------------------
+
+ //--------------------------------------------------------
+ // adding RPC functions
+ //--------------------------------------------------------
+ RPCFunction RPCdemocmd(&rpc_democmd, "democmd");
+ //--------------------------------------------------------
+
+ //--------------------------------------------------------
+ // adding Handlers
+ //--------------------------------------------------------
+ FSHandler::mount("/webfs", "/"); //Mount /webfs path on web root path
+
+ httpserver.addHandler<RPCHandler>("/rpc");
+ httpserver.addHandler<FSHandler>("/"); //Default handler
+ //--------------------------------------------------------
+
+ //--------------------------------------------------------
+ // bind http server to port 80 (Listen)
+ //--------------------------------------------------------
+ httpserver.bind(80);
+ #ifdef internaldebug
+ printf("Listening on port 80!\r\n");
+ #endif
+ //--------------------------------------------------------
+
+ //--------------------------------------------------------
+ // ISR -> attach timer interrupt to update Net::Pool();
+ //--------------------------------------------------------
+ netpool.attach(&netpoolupdate, 0.1);
+ //--------------------------------------------------------
+
+ //--------------------------------------------------------
+ // main loop
+ //--------------------------------------------------------
+ while(1)
+ {
+ myled = 1;
+ wait(0.5);
+ myled = 0;
+ wait(0.5);
+ }
+}
+//---------------------------------------------------------------------------------------------
\ No newline at end of file