WebcamHandler.h

00001 
00002 /*
00003 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
00004  
00005 Permission is hereby granted, free of charge, to any person obtaining a copy
00006 of this software and associated documentation files (the "Software"), to deal
00007 in the Software without restriction, including without limitation the rights
00008 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00009 copies of the Software, and to permit persons to whom the Software is
00010 furnished to do so, subject to the following conditions:
00011  
00012 The above copyright notice and this permission notice shall be included in
00013 all copies or substantial portions of the Software.
00014  
00015 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00016 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00017 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00018 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00019 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00020 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00021 THE SOFTWARE.
00022 */
00023 
00024 #ifndef WEBCAM_HANDLER_H
00025 #define WEBCAM_HANDLER_H
00026 
00027 #include "../HTTPRequestHandler.h"
00028 #include "mbed.h"
00029 
00030 struct stimage {
00031     uint8_t* buf;
00032     int len;
00033 };
00034 
00035 class WebcamHandler : public HTTPRequestHandler
00036 {
00037 public:
00038   WebcamHandler(const char* rootPath, const char* path, TCPSocket* pTCPSocket);
00039   virtual ~WebcamHandler(){}
00040   static void setImage(uint8_t* buf, int len, int cam = 0);
00041   static bool busy() { return m_busy; }
00042 //protected:
00043   static inline HTTPRequestHandler* inst(const char* rootPath, const char* path, TCPSocket* pTCPSocket) { return new WebcamHandler(rootPath, path, pTCPSocket); } //if we ever could do static virtual functions, this would be one
00044 
00045   virtual void doGet();
00046   virtual void doPost(){}
00047   virtual void doHead(){}
00048   
00049   virtual void onReadable(){} //Data has been read
00050   virtual void onWriteable(); //Data has been written & buf is free
00051   virtual void onClose(); //Connection is closing
00052   
00053 private:
00054   int m_pos;
00055   char* m_buf;
00056   int m_buf_len;
00057   static struct stimage m_image[2];
00058   static bool m_busy;
00059   static char* m_image_buf;
00060   static int m_image_buf_len;
00061 };
00062 
00063 #endif