Example program with HTTPServer and sensor data streaming over TCPSockets, using Donatien Garnier's Net APIs and services code on top of LWIP. Files StreamServer.h and .cpp encapsulate streaming over TCPSockets. Broadcast is done by sendToAll(), and all incoming data is echoed back to the client. Echo code can be replaced with some remote control of the streaming interface. See main() that shows how to periodically send some data to all subscribed clients. To subscribe, a client should open a socket at <mbed_ip> port 123. I used few lines in TCL code to set up a quick sink for the data. HTTP files are served on port 80 concurrently to the streaming.

Dependencies:   mbed

Committer:
iva2k
Date:
Sat Jun 12 06:01:50 2010 +0000
Revision:
0:e614f7875b60
Child:
1:3ee499525aa5

        

Who changed what in which revision?

UserRevisionLine numberNew contents of line
iva2k 0:e614f7875b60 1
iva2k 0:e614f7875b60 2 /*
iva2k 0:e614f7875b60 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
iva2k 0:e614f7875b60 4
iva2k 0:e614f7875b60 5 Permission is hereby granted, free of charge, to any person obtaining a copy
iva2k 0:e614f7875b60 6 of this software and associated documentation files (the "Software"), to deal
iva2k 0:e614f7875b60 7 in the Software without restriction, including without limitation the rights
iva2k 0:e614f7875b60 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
iva2k 0:e614f7875b60 9 copies of the Software, and to permit persons to whom the Software is
iva2k 0:e614f7875b60 10 furnished to do so, subject to the following conditions:
iva2k 0:e614f7875b60 11
iva2k 0:e614f7875b60 12 The above copyright notice and this permission notice shall be included in
iva2k 0:e614f7875b60 13 all copies or substantial portions of the Software.
iva2k 0:e614f7875b60 14
iva2k 0:e614f7875b60 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
iva2k 0:e614f7875b60 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
iva2k 0:e614f7875b60 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
iva2k 0:e614f7875b60 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
iva2k 0:e614f7875b60 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
iva2k 0:e614f7875b60 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
iva2k 0:e614f7875b60 21 THE SOFTWARE.
iva2k 0:e614f7875b60 22 */
iva2k 0:e614f7875b60 23
iva2k 0:e614f7875b60 24 //#ifdef DBG_H
iva2k 0:e614f7875b60 25 //#define DBG_H
iva2k 0:e614f7875b60 26
iva2k 0:e614f7875b60 27 #ifdef __LWIP_DEBUG
iva2k 0:e614f7875b60 28 #define __DEBUG
iva2k 0:e614f7875b60 29 #endif
iva2k 0:e614f7875b60 30
iva2k 0:e614f7875b60 31 #ifdef __DEBUG
iva2k 0:e614f7875b60 32
iva2k 0:e614f7875b60 33 #ifndef __DEBUGSTREAM
iva2k 0:e614f7875b60 34 #define __DEBUGSTREAM
iva2k 0:e614f7875b60 35
iva2k 0:e614f7875b60 36
iva2k 0:e614f7875b60 37 class DebugStream
iva2k 0:e614f7875b60 38 {
iva2k 0:e614f7875b60 39 public:
iva2k 0:e614f7875b60 40 static void debug(const char* format, ...);
iva2k 0:e614f7875b60 41 static void release();
iva2k 0:e614f7875b60 42 private:
iva2k 0:e614f7875b60 43
iva2k 0:e614f7875b60 44 };
iva2k 0:e614f7875b60 45
iva2k 0:e614f7875b60 46 #undef DBG
iva2k 0:e614f7875b60 47 #undef DBG_END
iva2k 0:e614f7875b60 48 #define DBG DebugStream::debug
iva2k 0:e614f7875b60 49 #define DBG_END DebugStream::release
iva2k 0:e614f7875b60 50 #endif
iva2k 0:e614f7875b60 51
iva2k 0:e614f7875b60 52 #else
iva2k 0:e614f7875b60 53 #undef DBG
iva2k 0:e614f7875b60 54 #undef DBG_END
iva2k 0:e614f7875b60 55 #define DBG(...)
iva2k 0:e614f7875b60 56 #define DBG_END()
iva2k 0:e614f7875b60 57 #endif
iva2k 0:e614f7875b60 58
iva2k 0:e614f7875b60 59 #ifdef __LWIP_DEBUG
iva2k 0:e614f7875b60 60 #ifndef __SNPRINTF
iva2k 0:e614f7875b60 61 #define __SNPRINTF
iva2k 0:e614f7875b60 62 #include "mbed.h"
iva2k 0:e614f7875b60 63
iva2k 0:e614f7875b60 64 //int snprintf(char *str, int size, const char *format, ...);
iva2k 0:e614f7875b60 65 #endif
iva2k 0:e614f7875b60 66 #endif
iva2k 0:e614f7875b60 67
iva2k 0:e614f7875b60 68 #ifdef __LWIP_DEBUG
iva2k 0:e614f7875b60 69 #undef __DEBUG
iva2k 0:e614f7875b60 70 #endif
iva2k 0:e614f7875b60 71
iva2k 0:e614f7875b60 72 //#endif
iva2k 0:e614f7875b60 73