4.06.2013 - Version 0.3.4 - PIOBJECT() macro, ethernet improvement, documentation based on Doxygen
This commit is contained in:
143
piiodevice.h
143
piiodevice.h
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/*! \file piiodevice.h
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* \brief Abstract input/output device
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*/
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/*
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PIP - Platform Independent Primitives
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Abstract input/output device
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@@ -25,36 +28,59 @@
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// function executed from threaded read, pass ThreadedReadData, readedData, sizeOfData
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typedef bool (*ReadRetFunc)(void * , uchar * , int );
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/// events:
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/// void opened()
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/// void closed()
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///
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/// handlers:
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/// bool open()
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/// bool open(const PIString & path)
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/// bool open(const DeviceMode & type)
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/// bool open(const PIString & path, const DeviceMode & type)
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/// bool close()
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/// bool initialize()
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/// void flush()
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class PIIODevice: public PIThread {
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// events:
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// void opened()
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// void closed()
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//
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// handlers:
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// bool open()
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// bool open(const PIString & path)
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// bool open(const DeviceMode & type)
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// bool open(const PIString & path, const DeviceMode & type)
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// bool close()
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// bool initialize()
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// void flush()
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class PIP_EXPORT PIIODevice: public PIThread
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{
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PIOBJECT(PIIODevice)
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public:
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PIIODevice();
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enum DeviceMode {ReadOnly = 0x01, WriteOnly = 0x02, ReadWrite = 0x03};
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//! \brief Open modes for PIIODevice
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enum DeviceMode {
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ReadOnly /*! Device can only read */ = 0x01,
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WriteOnly /*! Device can only write */ = 0x02,
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ReadWrite /*! Device can both read and write */ = 0x03
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};
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PIIODevice(const PIString & path, DeviceMode type = ReadWrite, bool initNow = true);
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virtual ~PIIODevice() {if (opened_) {closeDevice(); if (!opened_) closed();}}
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virtual ~PIIODevice() {stop(); write_thread.stop(); if (opened_) {closeDevice(); if (!opened_) closed();}}
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//! Current open mode of device
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DeviceMode mode() const {return mode_;}
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//! Current path of device
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PIString path() const {return path_;}
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//! return \b true if mode is ReadOnly or ReadWrite
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bool isReadable() const {return (mode_ & ReadOnly);}
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//! return \b true if mode is WriteOnly or ReadWrite
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bool isWriteable() const {return (mode_ & WriteOnly);}
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bool isInitialized() const {return init_;}
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//! return \b true if device is successfully opened
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bool isOpened() const {return opened_;}
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//! return \b true if device is closed
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bool isClosed() const {return !opened_;}
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//! return \b true if device can read \b now
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bool canRead() const {return opened_ && (mode_ & ReadOnly);}
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//! return \b true if device can write \b now
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bool canWrite() const {return opened_ && (mode_ & WriteOnly);}
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@@ -74,34 +100,83 @@ public:
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int threadedReadBufferSize() const {return buffer_tr.size_s();}
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const uchar * threadedReadBuffer() const {return buffer_tr.data();}
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bool isThreadedRead() const {return isRunning();}
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void startThreadedRead() {if (!isRunning()) start();}
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void startThreadedRead(ReadRetFunc func) {ret_func_ = func; if (!isRunning()) start();}
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EVENT_HANDLER(PIIODevice, bool, open) {if (!init_) init(); opened_ = openDevice(); if (opened_) opened(); return opened_;}
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EVENT_HANDLER1(PIIODevice, bool, open, const PIString &, _path) {path_ = _path; if (!init_) init(); opened_ = openDevice(); if (opened_) opened(); return opened_;}
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EVENT_HANDLER1(PIIODevice, bool, open, const DeviceMode &, _type) {mode_ = _type; if (!init_) init(); opened_ = openDevice(); if (opened_) opened(); return opened_;}
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EVENT_HANDLER2(PIIODevice, bool, open, const PIString &, _path, const DeviceMode &, _type) {path_ = _path; mode_ = _type; if (!init_) init(); opened_ = openDevice(); if (opened_) opened(); return opened_;}
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EVENT_HANDLER(PIIODevice, bool, close) {opened_ = !closeDevice(); if (!opened_) closed(); return !opened_;}
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EVENT_HANDLER(PIIODevice, bool, initialize) {init_ = init(); return init_;}
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// Flush device
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EVENT_VHANDLER(PIIODevice, void, flush) {;}
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EVENT(PIIODevice, opened)
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EVENT(PIIODevice, closed)
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bool isThreadedWrite() const {return write_thread.isRunning();}
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void startThreadedWrite() {if (!write_thread.isRunning()) write_thread.startOnce();}
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void stopThreadedWrite() {write_thread.stop();}
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void clearThreadedWriteQueue() {write_thread.lock(); write_queue.clear(); write_thread.unlock();}
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// Read from device to "read_to" maximum "max_size" bytes, return readed bytes count
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virtual int read(void * read_to, int max_size) {piCout << "[PIIODevice] \"read\" not implemented!" << endl; return -2;}
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virtual int read(void * read_to, int max_size) {piCout << "[PIIODevice] \"read\" not implemented!"; return -2;}
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// Write to device "data" maximum "max_size" bytes, return written bytes count
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virtual int write(const void * data, int max_size) {piCout << "[PIIODevice] \"write\" not implemented!" << endl; return -2;}
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virtual int write(const void * data, int max_size) {piCout << "[PIIODevice] \"write\" not implemented!"; return -2;}
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// Read from device maximum "max_size" bytes and return them as PIByteArray
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PIByteArray read(int max_size) {buffer_in.resize(max_size); int ret = read(buffer_in.data(), max_size); if (ret < 0) return PIByteArray(); return buffer_in.resized(ret);}
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int write(const PIByteArray & data) {return write(data.data(), data.size_s());}
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ullong writeThreaded(const void * data, int max_size) {return writeThreaded(PIByteArray(data, uint(max_size)));}
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ullong writeThreaded(const PIByteArray & data);
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EVENT_HANDLER(bool, open) {if (!init_) init(); opened_ = openDevice(); if (opened_) opened(); return opened_;}
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EVENT_HANDLER1(bool, open, const PIString &, _path) {path_ = _path; if (!init_) init(); opened_ = openDevice(); if (opened_) opened(); return opened_;}
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EVENT_HANDLER1(bool, open, const DeviceMode &, _type) {mode_ = _type; if (!init_) init(); opened_ = openDevice(); if (opened_) opened(); return opened_;}
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EVENT_HANDLER2(bool, open, const PIString &, _path, const DeviceMode &, _type) {path_ = _path; mode_ = _type; if (!init_) init(); opened_ = openDevice(); if (opened_) opened(); return opened_;}
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EVENT_HANDLER(bool, close) {opened_ = !closeDevice(); if (!opened_) closed(); return !opened_;}
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EVENT_HANDLER(bool, initialize) {init_ = init(); return init_;}
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EVENT_VHANDLER(void, flush) {;}
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EVENT(opened)
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EVENT(closed)
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EVENT2(threadedReadEvent, uchar * , readed, int, size)
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EVENT2(threadedWriteEvent, ullong, id, int, written_size)
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//! \handlers
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//! \{
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//! \fn bool open()
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//! \brief Open device
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//! \fn bool open(const PIString & path)
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//! \brief Open device with path "path"
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//! \fn bool open(const DeviceMode & mode)
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//! \brief Open device with mode "mode"
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//! \fn bool open(const PIString & path, const DeviceMode & mode)
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//! \brief Open device with path "path" and mode "mode"
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//! \}
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//! \vhandlers
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//! \{
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//! \fn void flush()
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//! \brief Immediate write all buffers
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//! \}
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//! \events
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//! \{
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//! \fn void opened()
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//! \brief Raise if succesfull open
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//! \fn void closed()
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//! \brief Raise if succesfull close
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//! \fn void threadedReadEvent(uchar * readed, int size)
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//! \brief Raise if read thread succesfull read some data
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//! \fn void threadedWriteEvent(ullong id, int written_size)
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//! \brief Raise if write thread succesfull write some data of queue item with id "id"
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//! \}
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protected:
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// Function executed before first openDevice() or from constructor
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@@ -124,14 +199,18 @@ protected:
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void * ret_data_;
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private:
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EVENT_HANDLER2(PIIODevice, void, check_start, void * , data, int, delim);
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EVENT_HANDLER2(void, check_start, void * , data, int, delim);
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EVENT_HANDLER(void, write_func);
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void begin();
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void run();
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void end() {terminate();}
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PITimer timer;
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PIThread write_thread;
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PIByteArray buffer_in, buffer_tr;
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PIQueue<PIPair<PIByteArray, ullong> > write_queue;
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ullong tri;
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int readed_;
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};
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