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:
Mon Jun 14 03:24:33 2010 +0000
Revision:
1:3ee499525aa5
Parent:
0:e614f7875b60

        

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 #ifndef URL_H
iva2k 0:e614f7875b60 25 #define URL_H
iva2k 0:e614f7875b60 26
iva2k 0:e614f7875b60 27 #include "if/net/ipaddr.h"
iva2k 0:e614f7875b60 28
iva2k 0:e614f7875b60 29 #include <string>
iva2k 0:e614f7875b60 30 using std::string;
iva2k 0:e614f7875b60 31
iva2k 0:e614f7875b60 32 #include "mbed.h"
iva2k 0:e614f7875b60 33
iva2k 0:e614f7875b60 34 #ifdef __cplusplus
iva2k 0:e614f7875b60 35 extern "C" {
iva2k 0:e614f7875b60 36 #endif
iva2k 0:e614f7875b60 37
iva2k 0:e614f7875b60 38 char *url_encode(char *str);
iva2k 0:e614f7875b60 39 char *url_decode(char *str);
iva2k 0:e614f7875b60 40
iva2k 0:e614f7875b60 41 #ifdef __cplusplus
iva2k 0:e614f7875b60 42 }
iva2k 0:e614f7875b60 43 #endif
iva2k 0:e614f7875b60 44
iva2k 0:e614f7875b60 45 class Url
iva2k 0:e614f7875b60 46 {
iva2k 0:e614f7875b60 47 public:
iva2k 0:e614f7875b60 48 static string encode(const string& url)
iva2k 0:e614f7875b60 49 {
iva2k 0:e614f7875b60 50 char* c_res = url_encode( (char*) url.c_str() );
iva2k 0:e614f7875b60 51 string res(c_res);
iva2k 0:e614f7875b60 52 free(c_res); //Alloc'ed in url_encode()
iva2k 0:e614f7875b60 53 return res;
iva2k 0:e614f7875b60 54 }
iva2k 0:e614f7875b60 55
iva2k 0:e614f7875b60 56 static string decode(const string& url)
iva2k 0:e614f7875b60 57 {
iva2k 0:e614f7875b60 58 char* c_res = url_decode( (char*) url.c_str() );
iva2k 0:e614f7875b60 59 string res(c_res);
iva2k 0:e614f7875b60 60 free(c_res); //Alloc'ed in url_decode()
iva2k 0:e614f7875b60 61 return res;
iva2k 0:e614f7875b60 62 }
iva2k 0:e614f7875b60 63
iva2k 0:e614f7875b60 64 Url();
iva2k 0:e614f7875b60 65
iva2k 0:e614f7875b60 66 string getProtocol();
iva2k 0:e614f7875b60 67 string getHost();
iva2k 0:e614f7875b60 68 bool getHostIp(IpAddr* ip); //If host is in IP form, return true & proper object by ptr
iva2k 0:e614f7875b60 69 uint16_t getPort();
iva2k 0:e614f7875b60 70 string getPath();
iva2k 0:e614f7875b60 71
iva2k 0:e614f7875b60 72 void setProtocol(string protocol);
iva2k 0:e614f7875b60 73 void setHost(string host);
iva2k 0:e614f7875b60 74 void setPort(uint16_t port);
iva2k 0:e614f7875b60 75 void setPath(string path);
iva2k 0:e614f7875b60 76
iva2k 0:e614f7875b60 77 void fromString(string str);
iva2k 0:e614f7875b60 78 string toString();
iva2k 0:e614f7875b60 79
iva2k 0:e614f7875b60 80 private:
iva2k 0:e614f7875b60 81 string m_protocol;
iva2k 0:e614f7875b60 82 string m_host;
iva2k 0:e614f7875b60 83 uint16_t m_port;
iva2k 0:e614f7875b60 84 string m_path;
iva2k 0:e614f7875b60 85
iva2k 0:e614f7875b60 86 };
iva2k 0:e614f7875b60 87
iva2k 0:e614f7875b60 88 #endif /* LWIP_UTILS_H */