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/*
License...
*/
#ifndef SERIALPORTENGINE_P_WIN_H
#define SERIALPORTENGINE_P_WIN_H
#include "serialport.h"
#include "serialportengine_p.h"
#include <qt_windows.h>
#if defined (Q_OS_WINCE)
# include <QtCore/qmutex.h>
# include <QtCore/qthread.h>
# include <QtCore/qtimer.h>
#else
# include <QtCore/private/qwineventnotifier_p.h>
#endif
QT_BEGIN_NAMESPACE
#if defined (Q_OS_WINCE)
class WinCeWaitCommEventBreaker : public QThread
{
Q_OBJECT
public:
WinCeWaitCommEventBreaker(HANDLE descriptor, int timeout, QObject *parent = 0)
: QThread(parent), m_descriptor(descriptor),
m_timeout(timeout), m_worked(false) {
start();
}
virtual ~WinCeWaitCommEventBreaker() {
stop();
wait();
}
void stop() { exit(0); }
bool isWorked() const { return m_worked; }
protected:
void run() {
QTimer timer;
QObject::connect(&timer, SIGNAL(timeout()), this, SLOT(procTimeout()), Qt::DirectConnection);
timer.start(m_timeout);
exec();
m_worked = true;
}
private slots:
void procTimeout() {
::SetCommMask(m_descriptor, 0);
stop();
}
private:
HANDLE m_descriptor;
int m_timeout;
volatile bool m_worked;
};
#endif
#if defined (Q_OS_WINCE)
class WinSerialPortEngine : public QThread, public SerialPortEngine
#else
class WinSerialPortEngine : public QWinEventNotifier, public SerialPortEngine
#endif
{
Q_OBJECT
public:
WinSerialPortEngine(SerialPortPrivate *parent);
virtual ~WinSerialPortEngine();
virtual bool open(const QString &location, QIODevice::OpenMode mode);
virtual void close(const QString &location);
virtual SerialPort::Lines lines() const;
virtual bool setDtr(bool set);
virtual bool setRts(bool set);
virtual bool flush();
virtual bool reset();
virtual bool sendBreak(int duration);
virtual bool setBreak(bool set);
virtual qint64 bytesAvailable() const;
virtual qint64 bytesToWrite() const;
virtual qint64 read(char *data, qint64 len);
virtual qint64 write(const char *data, qint64 len);
virtual bool select(int timeout,
bool checkRead, bool checkWrite,
bool *selectForRead, bool *selectForWrite);
virtual QString toSystemLocation(const QString &port) const;
virtual QString fromSystemLocation(const QString &location) const;
virtual bool setRate(qint32 rate, SerialPort::Directions dir);
virtual bool setDataBits(SerialPort::DataBits dataBits);
virtual bool setParity(SerialPort::Parity parity);
virtual bool setStopBits(SerialPort::StopBits stopBits);
virtual bool setFlowControl(SerialPort::FlowControl flowControl);
virtual bool setDataErrorPolicy(SerialPort::DataErrorPolicy policy);
virtual bool isReadNotificationEnabled() const;
virtual void setReadNotificationEnabled(bool enable);
virtual bool isWriteNotificationEnabled() const;
virtual void setWriteNotificationEnabled(bool enable);
virtual bool processIOErrors();
#if defined (Q_OS_WINCE)
virtual void lockNotification(NotificationLockerType type, bool uselocker);
virtual void unlockNotification(NotificationLockerType type);
#endif
protected:
virtual void detectDefaultSettings();
#if defined (Q_OS_WINCE)
virtual void run();
#else
virtual bool event(QEvent *e);
#endif
private:
DCB m_currDCB;
DCB m_oldDCB;
COMMTIMEOUTS m_currCommTimeouts;
COMMTIMEOUTS m_oldCommTimeouts;
HANDLE m_descriptor;
bool m_flagErrorFromCommEvent;
DWORD m_currentMask;
DWORD m_setMask;
#if defined (Q_OS_WINCE)
QMutex m_readNotificationMutex;
QMutex m_writeNotificationMutex;
QMutex m_errorNotificationMutex;
QMutex m_settingsChangeMutex;
QMutex m_setCommMaskMutex;
volatile bool m_running;
#else
OVERLAPPED m_ovRead;
OVERLAPPED m_ovWrite;
OVERLAPPED m_ovSelect;
OVERLAPPED m_ov;
bool createEvents(bool rx, bool tx);
void closeEvents();
void setMaskAndActivateEvent();
#endif
bool updateDcb();
bool updateCommTimeouts();
};
QT_END_NAMESPACE
#endif // SERIALPORTENGINE_P_WIN_H
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