Ilya I
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.
drv/at/ATIf.h@0:e614f7875b60, 2010-06-12 (annotated)
- Committer:
- iva2k
- Date:
- Sat Jun 12 06:01:50 2010 +0000
- Revision:
- 0:e614f7875b60
Who changed what in which revision?
| User | Revision | Line number | New 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 ATIF_H |
| iva2k | 0:e614f7875b60 | 25 | #define ATIF_H |
| iva2k | 0:e614f7875b60 | 26 | |
| iva2k | 0:e614f7875b60 | 27 | #include "netCfg.h" |
| iva2k | 0:e614f7875b60 | 28 | |
| iva2k | 0:e614f7875b60 | 29 | #include "mbed.h" |
| iva2k | 0:e614f7875b60 | 30 | #include "drv/serial/buf/SerialBuf.h" |
| iva2k | 0:e614f7875b60 | 31 | #include <list> |
| iva2k | 0:e614f7875b60 | 32 | using std::list; |
| iva2k | 0:e614f7875b60 | 33 | |
| iva2k | 0:e614f7875b60 | 34 | //class Serial; //Pb w forward decl |
| iva2k | 0:e614f7875b60 | 35 | |
| iva2k | 0:e614f7875b60 | 36 | enum ATErr |
| iva2k | 0:e614f7875b60 | 37 | { |
| iva2k | 0:e614f7875b60 | 38 | __AT_MIN = -0xFFFF, |
| iva2k | 0:e614f7875b60 | 39 | AT_CLOSED, |
| iva2k | 0:e614f7875b60 | 40 | AT_NOANSWER, |
| iva2k | 0:e614f7875b60 | 41 | AT_ERROR, |
| iva2k | 0:e614f7875b60 | 42 | AT_TIMEOUT, |
| iva2k | 0:e614f7875b60 | 43 | AT_BUSY, |
| iva2k | 0:e614f7875b60 | 44 | AT_PARSE, |
| iva2k | 0:e614f7875b60 | 45 | AT_INCOMPLETE, |
| iva2k | 0:e614f7875b60 | 46 | AT_OK = 0 |
| iva2k | 0:e614f7875b60 | 47 | }; |
| iva2k | 0:e614f7875b60 | 48 | |
| iva2k | 0:e614f7875b60 | 49 | class ATIf : public SerialBuf |
| iva2k | 0:e614f7875b60 | 50 | { |
| iva2k | 0:e614f7875b60 | 51 | public: |
| iva2k | 0:e614f7875b60 | 52 | |
| iva2k | 0:e614f7875b60 | 53 | ATIf(); |
| iva2k | 0:e614f7875b60 | 54 | virtual ~ATIf(); |
| iva2k | 0:e614f7875b60 | 55 | |
| iva2k | 0:e614f7875b60 | 56 | template<class T> |
| iva2k | 0:e614f7875b60 | 57 | //void attachSignal( const char* sigName, T* pItem, bool (T::*pMethod)(ATIf*, bool, bool*) ); //Attach Signal ("Unsollicited response code" in Telit_AT_Reference_Guide.pdf) to an handler fn |
| iva2k | 0:e614f7875b60 | 58 | //Linker bug : Must be defined here :( |
| iva2k | 0:e614f7875b60 | 59 | void attachSignal( const char* sigName, T* pItem, bool (T::*pMethod)(ATIf*, bool, bool*) ) //Attach Signal ("Unsollicited response code" in Telit_AT_Reference_Guide.pdf) to an handler fn |
| iva2k | 0:e614f7875b60 | 60 | { |
| iva2k | 0:e614f7875b60 | 61 | ATSigHandler sig(sigName, (ATSigHandler::CDummy*)pItem, (bool (ATSigHandler::CDummy::*)(ATIf*, bool, bool*))pMethod); |
| iva2k | 0:e614f7875b60 | 62 | m_signals.push_back(sig); |
| iva2k | 0:e614f7875b60 | 63 | } |
| iva2k | 0:e614f7875b60 | 64 | void detachSignal( const char* sigName ); |
| iva2k | 0:e614f7875b60 | 65 | |
| iva2k | 0:e614f7875b60 | 66 | ATErr open(Serial* pSerial); //Deactivate echo, etc |
| iva2k | 0:e614f7875b60 | 67 | #if NET_USB_SERIAL |
| iva2k | 0:e614f7875b60 | 68 | ATErr open(UsbSerial* pUsbSerial); //Deactivate echo, etc |
| iva2k | 0:e614f7875b60 | 69 | #endif |
| iva2k | 0:e614f7875b60 | 70 | ATErr close(); //Release port |
| iva2k | 0:e614f7875b60 | 71 | |
| iva2k | 0:e614f7875b60 | 72 | int printf(const char* format, ... ); |
| iva2k | 0:e614f7875b60 | 73 | int scanf(const char* format, ... ); |
| iva2k | 0:e614f7875b60 | 74 | void setTimeout(int timeout); //used by scanf |
| iva2k | 0:e614f7875b60 | 75 | void setLineMode(bool lineMode); //Switch btw line & raw fns |
| iva2k | 0:e614f7875b60 | 76 | void setSignals(bool signalsEnable); |
| iva2k | 0:e614f7875b60 | 77 | ATErr flushBuffer(); //Discard input buffer |
| iva2k | 0:e614f7875b60 | 78 | ATErr flushLine(int timeout); //Discard input buffer until CRLF is encountered |
| iva2k | 0:e614f7875b60 | 79 | |
| iva2k | 0:e614f7875b60 | 80 | protected: |
| iva2k | 0:e614f7875b60 | 81 | virtual bool onRead(); //Inherited from SerialBuf, return true if data is incomplete |
| iva2k | 0:e614f7875b60 | 82 | ATErr rawOpen(Serial* pSerial, int baudrate); //Simple open function for similar non-conforming protocols |
| iva2k | 0:e614f7875b60 | 83 | |
| iva2k | 0:e614f7875b60 | 84 | public: |
| iva2k | 0:e614f7875b60 | 85 | /* ATErr command(const char* cmd, char* result, int resultLen, int timeout); */ //Kinda useless |
| iva2k | 0:e614f7875b60 | 86 | ATErr write(const char* cmd, bool lineMode = false); |
| iva2k | 0:e614f7875b60 | 87 | ATErr read(char* result, int resultMaxLen, int timeout, bool lineMode = false, int resultMinLen = 0); |
| iva2k | 0:e614f7875b60 | 88 | bool isOpen(); |
| iva2k | 0:e614f7875b60 | 89 | ATErr checkOK(); //Helper fn to quickly check that OK has been returned |
| iva2k | 0:e614f7875b60 | 90 | |
| iva2k | 0:e614f7875b60 | 91 | private: |
| iva2k | 0:e614f7875b60 | 92 | int readLine(char* line, int maxLen, int timeout); //Read a single line from serial port |
| iva2k | 0:e614f7875b60 | 93 | int writeLine(const char* line); //Write a single line to serial port |
| iva2k | 0:e614f7875b60 | 94 | |
| iva2k | 0:e614f7875b60 | 95 | int readRaw(char* str, int maxLen, int timeout = 0, int minLen = 0); //Read from serial port in buf |
| iva2k | 0:e614f7875b60 | 96 | int writeRaw(const char* str); //Write directly to serial port |
| iva2k | 0:e614f7875b60 | 97 | |
| iva2k | 0:e614f7875b60 | 98 | volatile int m_readTimeout; |
| iva2k | 0:e614f7875b60 | 99 | volatile bool m_lineMode; |
| iva2k | 0:e614f7875b60 | 100 | bool m_signalsEnable; |
| iva2k | 0:e614f7875b60 | 101 | bool m_isOpen; |
| iva2k | 0:e614f7875b60 | 102 | |
| iva2k | 0:e614f7875b60 | 103 | char* m_tmpBuf; |
| iva2k | 0:e614f7875b60 | 104 | |
| iva2k | 0:e614f7875b60 | 105 | class ATSigHandler |
| iva2k | 0:e614f7875b60 | 106 | { |
| iva2k | 0:e614f7875b60 | 107 | class CDummy; |
| iva2k | 0:e614f7875b60 | 108 | public: |
| iva2k | 0:e614f7875b60 | 109 | ATSigHandler(const char* name, CDummy* cbObj, bool (CDummy::*cbMeth)(ATIf* pIf, bool beg, bool* pMoreData)) : m_cbObj(cbObj), m_cbMeth(cbMeth), m_name(name) |
| iva2k | 0:e614f7875b60 | 110 | {} |
| iva2k | 0:e614f7875b60 | 111 | protected: |
| iva2k | 0:e614f7875b60 | 112 | CDummy* m_cbObj; |
| iva2k | 0:e614f7875b60 | 113 | bool (CDummy::*m_cbMeth)(ATIf* pIf, bool beg, bool* pMoreData); //*pMoreData set to true if needs to read next line, beg = true if beginning of new code |
| iva2k | 0:e614f7875b60 | 114 | const char* m_name; |
| iva2k | 0:e614f7875b60 | 115 | |
| iva2k | 0:e614f7875b60 | 116 | friend class ATIf; |
| iva2k | 0:e614f7875b60 | 117 | }; |
| iva2k | 0:e614f7875b60 | 118 | |
| iva2k | 0:e614f7875b60 | 119 | volatile ATSigHandler* m_pCurrentSignal; //Signal that asked more data |
| iva2k | 0:e614f7875b60 | 120 | |
| iva2k | 0:e614f7875b60 | 121 | bool handleSignal(); //Returns true if signal has been handled |
| iva2k | 0:e614f7875b60 | 122 | list<ATSigHandler> m_signals; |
| iva2k | 0:e614f7875b60 | 123 | |
| iva2k | 0:e614f7875b60 | 124 | }; |
| iva2k | 0:e614f7875b60 | 125 | |
| iva2k | 0:e614f7875b60 | 126 | #endif |