WIZ820io(W5200) network interface、EthernetNetIf compatible.
example
#include "WIZ820ioNetIf.h" #include "HTTPClient.h" #include "HTTPServer.h" #if defined(TARGET_KL25Z) WIZ820ioNetIf eth(PTD2,PTD3,PTD1,PTD0,PTD5); #endif HTTPClient http; HTTPStream stream; void callback(HTTPResult r){ printf("callback %d %s\n", r, HTTPClient::ResultStr(r)); } int main() { int err = eth.setup(); if (err < 0) { printf("setup error %d\n", err); exit(-1); } HTTPServer svr; svr.addHandler<SimpleHandler>("/"); svr.bind(80); const char* uri = "http://va009039-mbed.appspot.com/kl25z/"; http.get(uri, &stream, callback); uint8_t buf[256]; int total = 0; stream.readNext(buf, sizeof(buf)); while(1) { if(stream.readable()) { int len = stream.readLen(); total += len; printf("%d %d\n", total, len); stream.readNext(buf, sizeof(buf)); } Net::poll(); } }
NetServices/services/http/client/data/HTTPStream.h@1:22b9052d864d, 2013-03-24 (annotated)
- Committer:
- va009039
- Date:
- Sun Mar 24 11:25:31 2013 +0000
- Revision:
- 1:22b9052d864d
WIZ820io(W8200) ethernet interface, EthernetNetIf compatible.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
va009039 | 1:22b9052d864d | 1 | |
va009039 | 1:22b9052d864d | 2 | /* |
va009039 | 1:22b9052d864d | 3 | Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) |
va009039 | 1:22b9052d864d | 4 | |
va009039 | 1:22b9052d864d | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy |
va009039 | 1:22b9052d864d | 6 | of this software and associated documentation files (the "Software"), to deal |
va009039 | 1:22b9052d864d | 7 | in the Software without restriction, including without limitation the rights |
va009039 | 1:22b9052d864d | 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
va009039 | 1:22b9052d864d | 9 | copies of the Software, and to permit persons to whom the Software is |
va009039 | 1:22b9052d864d | 10 | furnished to do so, subject to the following conditions: |
va009039 | 1:22b9052d864d | 11 | |
va009039 | 1:22b9052d864d | 12 | The above copyright notice and this permission notice shall be included in |
va009039 | 1:22b9052d864d | 13 | all copies or substantial portions of the Software. |
va009039 | 1:22b9052d864d | 14 | |
va009039 | 1:22b9052d864d | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
va009039 | 1:22b9052d864d | 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
va009039 | 1:22b9052d864d | 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
va009039 | 1:22b9052d864d | 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
va009039 | 1:22b9052d864d | 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
va009039 | 1:22b9052d864d | 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
va009039 | 1:22b9052d864d | 21 | THE SOFTWARE. |
va009039 | 1:22b9052d864d | 22 | */ |
va009039 | 1:22b9052d864d | 23 | |
va009039 | 1:22b9052d864d | 24 | #ifndef HTTP_STREAM_H |
va009039 | 1:22b9052d864d | 25 | #define HTTP_STREAM_H |
va009039 | 1:22b9052d864d | 26 | |
va009039 | 1:22b9052d864d | 27 | #include "../HTTPData.h" |
va009039 | 1:22b9052d864d | 28 | #include "mbed.h" |
va009039 | 1:22b9052d864d | 29 | |
va009039 | 1:22b9052d864d | 30 | /** \file |
va009039 | 1:22b9052d864d | 31 | HTTP Stream data source/sink header file |
va009039 | 1:22b9052d864d | 32 | */ |
va009039 | 1:22b9052d864d | 33 | |
va009039 | 1:22b9052d864d | 34 | typedef uint8_t byte; |
va009039 | 1:22b9052d864d | 35 | |
va009039 | 1:22b9052d864d | 36 | ///HTTP Client Streaming tool |
va009039 | 1:22b9052d864d | 37 | /** |
va009039 | 1:22b9052d864d | 38 | This class allows you to stream data from the web using a persisting HTTP connection. |
va009039 | 1:22b9052d864d | 39 | To use it properly you must use a non-blocking HTTPClient method. |
va009039 | 1:22b9052d864d | 40 | */ |
va009039 | 1:22b9052d864d | 41 | class HTTPStream : public HTTPData //Streaming buf |
va009039 | 1:22b9052d864d | 42 | { |
va009039 | 1:22b9052d864d | 43 | public: |
va009039 | 1:22b9052d864d | 44 | ///Instantiates the object |
va009039 | 1:22b9052d864d | 45 | HTTPStream(); |
va009039 | 1:22b9052d864d | 46 | virtual ~HTTPStream(); |
va009039 | 1:22b9052d864d | 47 | |
va009039 | 1:22b9052d864d | 48 | ///Starts to read into buffer |
va009039 | 1:22b9052d864d | 49 | /** |
va009039 | 1:22b9052d864d | 50 | Passes a buffer of address @a buf and size @a size to the instance. |
va009039 | 1:22b9052d864d | 51 | When it receives data it will be stored in this buffer. |
va009039 | 1:22b9052d864d | 52 | When the buffer is full it throttles the client until this function is called again. |
va009039 | 1:22b9052d864d | 53 | */ |
va009039 | 1:22b9052d864d | 54 | void readNext(byte* buf, int size); |
va009039 | 1:22b9052d864d | 55 | |
va009039 | 1:22b9052d864d | 56 | ///Returns whether there is data available to read |
va009039 | 1:22b9052d864d | 57 | bool readable(); |
va009039 | 1:22b9052d864d | 58 | |
va009039 | 1:22b9052d864d | 59 | ///Returns the actual length of the payload written in the buffer |
va009039 | 1:22b9052d864d | 60 | int readLen(); |
va009039 | 1:22b9052d864d | 61 | |
va009039 | 1:22b9052d864d | 62 | virtual void clear(); |
va009039 | 1:22b9052d864d | 63 | |
va009039 | 1:22b9052d864d | 64 | protected: |
va009039 | 1:22b9052d864d | 65 | virtual int read(char* buf, int len); |
va009039 | 1:22b9052d864d | 66 | virtual int write(const char* buf, int len); |
va009039 | 1:22b9052d864d | 67 | |
va009039 | 1:22b9052d864d | 68 | virtual string getDataType(); //Internet media type for Content-Type header |
va009039 | 1:22b9052d864d | 69 | virtual void setDataType(const string& type); //Internet media type from Content-Type header |
va009039 | 1:22b9052d864d | 70 | |
va009039 | 1:22b9052d864d | 71 | virtual bool getIsChunked(); //For Transfer-Encoding header |
va009039 | 1:22b9052d864d | 72 | virtual void setIsChunked(bool chunked); //From Transfer-Encoding header |
va009039 | 1:22b9052d864d | 73 | |
va009039 | 1:22b9052d864d | 74 | virtual int getDataLen(); //For Content-Length header |
va009039 | 1:22b9052d864d | 75 | virtual void setDataLen(int len); //From Content-Length header, or if the transfer is chunked, next chunk length |
va009039 | 1:22b9052d864d | 76 | |
va009039 | 1:22b9052d864d | 77 | private: |
va009039 | 1:22b9052d864d | 78 | byte* m_buf; |
va009039 | 1:22b9052d864d | 79 | int m_size; //Capacity |
va009039 | 1:22b9052d864d | 80 | int m_len; //Length |
va009039 | 1:22b9052d864d | 81 | }; |
va009039 | 1:22b9052d864d | 82 | |
va009039 | 1:22b9052d864d | 83 | #endif |