github-code/QWidgetDemo
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

彻底改版2.0

Browse Source
This commit is contained in:
feiyangqingyun
2021-11-17 16:41:30 +08:00
parent a7f4347959
commit ebfd531a91
2622 changed files with 8915 additions and 7263 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
tool/3rd_qextserialport/3rd_qextserialport.pri Normal file
View File

@@ -0,0 +1,9 @@
HEADERS += \
$$PWD/qextserialport.h \
$$PWD/qextserialport_global.h \
$$PWD/qextserialport_p.h
SOURCES += $$PWD/qextserialport.cpp
win32:SOURCES += $$PWD/qextserialport_win.cpp
unix:SOURCES += $$PWD/qextserialport_unix.cpp

1095
tool/3rd_qextserialport/qextserialport.cpp Normal file
View File

File diff suppressed because it is too large Load Diff

234
tool/3rd_qextserialport/qextserialport.h Normal file
View File

@@ -0,0 +1,234 @@
/****************************************************************************
** Copyright (c) 2000-2003 Wayne Roth
** Copyright (c) 2004-2007 Stefan Sander
** Copyright (c) 2007 Michal Policht
** Copyright (c) 2008 Brandon Fosdick
** Copyright (c) 2009-2010 Liam Staskawicz
** Copyright (c) 2011 Debao Zhang
** All right reserved.
** Web: http://code.google.com/p/qextserialport/
**
** Permission is hereby granted, free of charge, to any person obtaining
** a copy of this software and associated documentation files (the
** "Software"), to deal in the Software without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Software, and to
** permit persons to whom the Software is furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be
** included in all copies or substantial portions of the Software.
**
** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
** NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
** LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
** OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
** WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
**
****************************************************************************/
#ifndef _QEXTSERIALPORT_H_
#define _QEXTSERIALPORT_H_
#include <QtCore/QIODevice>
#include "qextserialport_global.h"
#ifdef Q_OS_UNIX
#include <termios.h>
#endif
/*line status constants*/
// ### QESP2.0 move to enum
#define LS_CTS 0x01
#define LS_DSR 0x02
#define LS_DCD 0x04
#define LS_RI 0x08
#define LS_RTS 0x10
#define LS_DTR 0x20
#define LS_ST 0x40
#define LS_SR 0x80
/*error constants*/
// ### QESP2.0 move to enum
#define E_NO_ERROR 0
#define E_INVALID_FD 1
#define E_NO_MEMORY 2
#define E_CAUGHT_NON_BLOCKED_SIGNAL 3
#define E_PORT_TIMEOUT 4
#define E_INVALID_DEVICE 5
#define E_BREAK_CONDITION 6
#define E_FRAMING_ERROR 7
#define E_IO_ERROR 8
#define E_BUFFER_OVERRUN 9
#define E_RECEIVE_OVERFLOW 10
#define E_RECEIVE_PARITY_ERROR 11
#define E_TRANSMIT_OVERFLOW 12
#define E_READ_FAILED 13
#define E_WRITE_FAILED 14
#define E_FILE_NOT_FOUND 15
#define E_PERMISSION_DENIED 16
#define E_AGAIN 17
enum BaudRateType {
#if defined(Q_OS_UNIX) || defined(qdoc)
BAUD50 = 50, //POSIX ONLY
BAUD75 = 75, //POSIX ONLY
BAUD134 = 134, //POSIX ONLY
BAUD150 = 150, //POSIX ONLY
BAUD200 = 200, //POSIX ONLY
BAUD1800 = 1800, //POSIX ONLY
# if defined(B76800) || defined(qdoc)
BAUD76800 = 76800, //POSIX ONLY
# endif
# if (defined(B230400) && defined(B4000000)) || defined(qdoc)
BAUD230400 = 230400, //POSIX ONLY
BAUD460800 = 460800, //POSIX ONLY
BAUD500000 = 500000, //POSIX ONLY
BAUD576000 = 576000, //POSIX ONLY
BAUD921600 = 921600, //POSIX ONLY
BAUD1000000 = 1000000, //POSIX ONLY
BAUD1152000 = 1152000, //POSIX ONLY
BAUD1500000 = 1500000, //POSIX ONLY
BAUD2000000 = 2000000, //POSIX ONLY
BAUD2500000 = 2500000, //POSIX ONLY
BAUD3000000 = 3000000, //POSIX ONLY
BAUD3500000 = 3500000, //POSIX ONLY
BAUD4000000 = 4000000, //POSIX ONLY
# endif
#endif //Q_OS_UNIX
#if defined(Q_OS_WIN) || defined(qdoc)
BAUD14400 = 14400, //WINDOWS ONLY
BAUD56000 = 56000, //WINDOWS ONLY
BAUD128000 = 128000, //WINDOWS ONLY
BAUD256000 = 256000, //WINDOWS ONLY
#endif //Q_OS_WIN
BAUD110 = 110,
BAUD300 = 300,
BAUD600 = 600,
BAUD1200 = 1200,
BAUD2400 = 2400,
BAUD4800 = 4800,
BAUD9600 = 9600,
BAUD19200 = 19200,
BAUD38400 = 38400,
BAUD57600 = 57600,
BAUD115200 = 115200
};
enum DataBitsType {
DATA_5 = 5,
DATA_6 = 6,
DATA_7 = 7,
DATA_8 = 8
};
enum ParityType {
PAR_NONE,
PAR_ODD,
PAR_EVEN,
#if defined(Q_OS_WIN) || defined(qdoc)
PAR_MARK, //WINDOWS ONLY
#endif
PAR_SPACE
};
enum StopBitsType {
STOP_1,
#if defined(Q_OS_WIN) || defined(qdoc)
STOP_1_5, //WINDOWS ONLY
#endif
STOP_2
};
enum FlowType {
FLOW_OFF,
FLOW_HARDWARE,
FLOW_XONXOFF
};
/**
* structure to contain port settings
*/
struct PortSettings {
BaudRateType BaudRate;
DataBitsType DataBits;
ParityType Parity;
StopBitsType StopBits;
FlowType FlowControl;
long Timeout_Millisec;
};
class QextSerialPortPrivate;
class QEXTSERIALPORT_EXPORT QextSerialPort: public QIODevice
{
Q_OBJECT
Q_DECLARE_PRIVATE(QextSerialPort)
Q_ENUMS(QueryMode)
Q_PROPERTY(QString portName READ portName WRITE setPortName)
Q_PROPERTY(QueryMode queryMode READ queryMode WRITE setQueryMode)
public:
enum QueryMode {
Polling,
EventDriven
};
explicit QextSerialPort(QueryMode mode = EventDriven, QObject *parent = 0);
explicit QextSerialPort(const QString &name, QueryMode mode = EventDriven, QObject *parent = 0);
explicit QextSerialPort(const PortSettings &s, QueryMode mode = EventDriven, QObject *parent = 0);
QextSerialPort(const QString &name, const PortSettings &s, QueryMode mode = EventDriven, QObject *parent = 0);
~QextSerialPort();
QString portName() const;
QueryMode queryMode() const;
BaudRateType baudRate() const;
DataBitsType dataBits() const;
ParityType parity() const;
StopBitsType stopBits() const;
FlowType flowControl() const;
bool open(OpenMode mode);
bool isSequential() const;
void close();
void flush();
qint64 bytesAvailable() const;
bool canReadLine() const;
QByteArray readAll();
ulong lastError() const;
ulong lineStatus();
QString errorString();
public Q_SLOTS:
void setPortName(const QString &name);
void setQueryMode(QueryMode mode);
void setBaudRate(BaudRateType);
void setDataBits(DataBitsType);
void setParity(ParityType);
void setStopBits(StopBitsType);
void setFlowControl(FlowType);
void setTimeout(long);
void setDtr(bool set = true);
void setRts(bool set = true);
Q_SIGNALS:
void dsrChanged(bool status);
protected:
qint64 readData(char *data, qint64 maxSize);
qint64 writeData(const char *data, qint64 maxSize);
private:
Q_DISABLE_COPY(QextSerialPort)
#ifdef Q_OS_WIN
Q_PRIVATE_SLOT(d_func(), void _q_onWinEvent(HANDLE))
#endif
Q_PRIVATE_SLOT(d_func(), void _q_canRead())
QextSerialPortPrivate *const d_ptr;
};
#endif

72
tool/3rd_qextserialport/qextserialport_global.h Normal file
View File

@@ -0,0 +1,72 @@
/****************************************************************************
** Copyright (c) 2000-2003 Wayne Roth
** Copyright (c) 2004-2007 Stefan Sander
** Copyright (c) 2007 Michal Policht
** Copyright (c) 2008 Brandon Fosdick
** Copyright (c) 2009-2010 Liam Staskawicz
** Copyright (c) 2011 Debao Zhang
** All right reserved.
** Web: http://code.google.com/p/qextserialport/
**
** Permission is hereby granted, free of charge, to any person obtaining
** a copy of this software and associated documentation files (the
** "Software"), to deal in the Software without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Software, and to
** permit persons to whom the Software is furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be
** included in all copies or substantial portions of the Software.
**
** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
** NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
** LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
** OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
** WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
**
****************************************************************************/
#ifndef QEXTSERIALPORT_GLOBAL_H
#define QEXTSERIALPORT_GLOBAL_H
#include <QtCore/QtGlobal>
#ifdef QEXTSERIALPORT_BUILD_SHARED
# define QEXTSERIALPORT_EXPORT Q_DECL_EXPORT
#elif defined(QEXTSERIALPORT_USING_SHARED)
# define QEXTSERIALPORT_EXPORT Q_DECL_IMPORT
#else
# define QEXTSERIALPORT_EXPORT
#endif
// ### for compatible with old version. should be removed in QESP 2.0
#ifdef _TTY_NOWARN_
# define QESP_NO_WARN
#endif
#ifdef _TTY_NOWARN_PORT_
# define QESP_NO_PORTABILITY_WARN
#endif
/*if all warning messages are turned off, flag portability warnings to be turned off as well*/
#ifdef QESP_NO_WARN
# define QESP_NO_PORTABILITY_WARN
#endif
/*macros for warning and debug messages*/
#ifdef QESP_NO_PORTABILITY_WARN
# define QESP_PORTABILITY_WARNING while (false)qWarning
#else
# define QESP_PORTABILITY_WARNING qWarning
#endif /*QESP_NOWARN_PORT*/
#ifdef QESP_NO_WARN
# define QESP_WARNING while (false)qWarning
#else
# define QESP_WARNING qWarning
#endif /*QESP_NOWARN*/
#endif // QEXTSERIALPORT_GLOBAL_H

277
tool/3rd_qextserialport/qextserialport_p.h Normal file
View File

@@ -0,0 +1,277 @@
/****************************************************************************
** Copyright (c) 2000-2003 Wayne Roth
** Copyright (c) 2004-2007 Stefan Sander
** Copyright (c) 2007 Michal Policht
** Copyright (c) 2008 Brandon Fosdick
** Copyright (c) 2009-2010 Liam Staskawicz
** Copyright (c) 2011 Debao Zhang
** All right reserved.
** Web: http://code.google.com/p/qextserialport/
**
** Permission is hereby granted, free of charge, to any person obtaining
** a copy of this software and associated documentation files (the
** "Software"), to deal in the Software without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Software, and to
** permit persons to whom the Software is furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be
** included in all copies or substantial portions of the Software.
**
** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
** NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
** LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
** OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
** WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
**
****************************************************************************/
#ifndef _QEXTSERIALPORT_P_H_
#define _QEXTSERIALPORT_P_H_
//
// W A R N I N G
// -------------
//
// This file is not part of the QESP API. It exists for the convenience
// of other QESP classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qextserialport.h"
#include <QtCore/QReadWriteLock>
#ifdef Q_OS_UNIX
# include <termios.h>
#elif (defined Q_OS_WIN)
# include <QtCore/qt_windows.h>
#endif
#include <stdlib.h>
// This is QextSerialPort's read buffer, needed by posix system.
// ref: QRingBuffer & QIODevicePrivateLinearBuffer
class QextReadBuffer
{
public:
inline QextReadBuffer(size_t growth = 4096)
: len(0), first(0), buf(0), capacity(0), basicBlockSize(growth)
{
}
~QextReadBuffer()
{
delete buf;
}
inline void clear()
{
first = buf;
len = 0;
}
inline int size() const
{
return len;
}
inline bool isEmpty() const
{
return len == 0;
}
inline int read(char *target, int size)
{
int r = qMin(size, len);
if (r == 1) {
*target = *first;
--len;
++first;
} else {
memcpy(target, first, r);
len -= r;
first += r;
}
return r;
}
inline char *reserve(size_t size)
{
if ((first - buf) + len + size > capacity) {
size_t newCapacity = qMax(capacity, basicBlockSize);
while (newCapacity < len + size) {
newCapacity *= 2;
}
if (newCapacity > capacity) {
// allocate more space
char *newBuf = new char[newCapacity];
memmove(newBuf, first, len);
delete buf;
buf = newBuf;
capacity = newCapacity;
} else {
// shift any existing data to make space
memmove(buf, first, len);
}
first = buf;
}
char *writePtr = first + len;
len += (int)size;
return writePtr;
}
inline void chop(int size)
{
if (size >= len) {
clear();
} else {
len -= size;
}
}
inline void squeeze()
{
if (first != buf) {
memmove(buf, first, len);
first = buf;
}
size_t newCapacity = basicBlockSize;
while (newCapacity < size_t(len)) {
newCapacity *= 2;
}
if (newCapacity < capacity) {
char *tmp = static_cast<char *>(realloc(buf, newCapacity));
if (tmp) {
buf = tmp;
capacity = newCapacity;
}
}
}
inline QByteArray readAll()
{
char *f = first;
int l = len;
clear();
return QByteArray(f, l);
}
inline int readLine(char *target, int size)
{
int r = qMin(size, len);
char *eol = static_cast<char *>(memchr(first, '\n', r));
if (eol) {
r = 1 + (eol - first);
}
memcpy(target, first, r);
len -= r;
first += r;
return int(r);
}
inline bool canReadLine() const
{
return memchr(first, '\n', len);
}
private:
int len;
char *first;
char *buf;
size_t capacity;
size_t basicBlockSize;
};
class QWinEventNotifier;
class QReadWriteLock;
class QSocketNotifier;
class QextSerialPortPrivate
{
Q_DECLARE_PUBLIC(QextSerialPort)
public:
QextSerialPortPrivate(QextSerialPort *q);
~QextSerialPortPrivate();
enum DirtyFlagEnum {
DFE_BaudRate = 0x0001,
DFE_Parity = 0x0002,
DFE_StopBits = 0x0004,
DFE_DataBits = 0x0008,
DFE_Flow = 0x0010,
DFE_TimeOut = 0x0100,
DFE_ALL = 0x0fff,
DFE_Settings_Mask = 0x00ff //without TimeOut
};
mutable QReadWriteLock lock;
QString port;
PortSettings settings;
QextReadBuffer readBuffer;
int settingsDirtyFlags;
ulong lastErr;
QextSerialPort::QueryMode queryMode;
// platform specific members
#ifdef Q_OS_UNIX
int fd;
QSocketNotifier *readNotifier;
struct termios currentTermios;
struct termios oldTermios;
#elif (defined Q_OS_WIN)
HANDLE handle;
OVERLAPPED overlap;
COMMCONFIG commConfig;
COMMTIMEOUTS commTimeouts;
QWinEventNotifier *winEventNotifier;
DWORD eventMask;
QList<OVERLAPPED *> pendingWrites;
QReadWriteLock *bytesToWriteLock;
#endif
/*fill PortSettings*/
void setBaudRate(BaudRateType baudRate, bool update = true);
void setDataBits(DataBitsType dataBits, bool update = true);
void setParity(ParityType parity, bool update = true);
void setStopBits(StopBitsType stopbits, bool update = true);
void setFlowControl(FlowType flow, bool update = true);
void setTimeout(long millisec, bool update = true);
void setPortSettings(const PortSettings &settings, bool update = true);
void platformSpecificDestruct();
void platformSpecificInit();
void translateError(ulong error);
void updatePortSettings();
qint64 readData_sys(char *data, qint64 maxSize);
qint64 writeData_sys(const char *data, qint64 maxSize);
void setDtr_sys(bool set = true);
void setRts_sys(bool set = true);
bool open_sys(QIODevice::OpenMode mode);
bool close_sys();
bool flush_sys();
ulong lineStatus_sys();
qint64 bytesAvailable_sys() const;
#ifdef Q_OS_WIN
void _q_onWinEvent(HANDLE h);
#endif
void _q_canRead();
QextSerialPort *q_ptr;
};
#endif //_QEXTSERIALPORT_P_H_

559
tool/3rd_qextserialport/qextserialport_unix.cpp Normal file
View File

@@ -0,0 +1,559 @@
/****************************************************************************
** Copyright (c) 2000-2003 Wayne Roth
** Copyright (c) 2004-2007 Stefan Sander
** Copyright (c) 2007 Michal Policht
** Copyright (c) 2008 Brandon Fosdick
** Copyright (c) 2009-2010 Liam Staskawicz
** Copyright (c) 2011 Debao Zhang
** All right reserved.
** Web: http://code.google.com/p/qextserialport/
**
** Permission is hereby granted, free of charge, to any person obtaining
** a copy of this software and associated documentation files (the
** "Software"), to deal in the Software without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Software, and to
** permit persons to whom the Software is furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be
** included in all copies or substantial portions of the Software.
**
** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
** NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
** LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
** OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
** WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
**
****************************************************************************/
#include "qextserialport.h"
#include "qextserialport_p.h"
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <sys/select.h>
#include <QtCore/QMutexLocker>
#include <QtCore/QDebug>
#include <QtCore/QSocketNotifier>
void QextSerialPortPrivate::platformSpecificInit()
{
fd = 0;
readNotifier = 0;
}
/*!
Standard destructor.
*/
void QextSerialPortPrivate::platformSpecificDestruct()
{
}
static QString fullPortName(const QString &name)
{
if (name.startsWith(QLatin1Char('/'))) {
return name;
}
return QLatin1String("/dev/") + name;
}
bool QextSerialPortPrivate::open_sys(QIODevice::OpenMode mode)
{
Q_Q(QextSerialPort);
//note: linux 2.6.21 seems to ignore O_NDELAY flag
if ((fd = ::open(fullPortName(port).toLatin1() , O_RDWR | O_NOCTTY | O_NDELAY)) != -1) {
/*In the Private class, We can not call QIODevice::open()*/
q->setOpenMode(mode); // Flag the port as opened
::tcgetattr(fd, &oldTermios); // Save the old termios
currentTermios = oldTermios; // Make a working copy
::cfmakeraw(&currentTermios); // Enable raw access
/*set up other port settings*/
currentTermios.c_cflag |= CREAD | CLOCAL;
currentTermios.c_lflag &= (~(ICANON | ECHO | ECHOE | ECHOK | ECHONL | ISIG));
currentTermios.c_iflag &= (~(INPCK | IGNPAR | PARMRK | ISTRIP | ICRNL | IXANY));
currentTermios.c_oflag &= (~OPOST);
currentTermios.c_cc[VMIN] = 0;
#ifdef _POSIX_VDISABLE // Is a disable character available on this system?
// Some systems allow for per-device disable-characters, so get the
// proper value for the configured device
const long vdisable = ::fpathconf(fd, _PC_VDISABLE);
currentTermios.c_cc[VINTR] = vdisable;
currentTermios.c_cc[VQUIT] = vdisable;
currentTermios.c_cc[VSTART] = vdisable;
currentTermios.c_cc[VSTOP] = vdisable;
currentTermios.c_cc[VSUSP] = vdisable;
#endif //_POSIX_VDISABLE
settingsDirtyFlags = DFE_ALL;
updatePortSettings();
if (queryMode == QextSerialPort::EventDriven) {
readNotifier = new QSocketNotifier(fd, QSocketNotifier::Read, q);
q->connect(readNotifier, SIGNAL(activated(int)), q, SLOT(_q_canRead()));
}
return true;
} else {
translateError(errno);
return false;
}
}
bool QextSerialPortPrivate::close_sys()
{
// Force a flush and then restore the original termios
flush_sys();
// Using both TCSAFLUSH and TCSANOW here discards any pending input
::tcsetattr(fd, TCSAFLUSH | TCSANOW, &oldTermios); // Restore termios
::close(fd);
if (readNotifier) {
delete readNotifier;
readNotifier = 0;
}
return true;
}
bool QextSerialPortPrivate::flush_sys()
{
::tcdrain(fd);
return true;
}
qint64 QextSerialPortPrivate::bytesAvailable_sys() const
{
int bytesQueued;
if (::ioctl(fd, FIONREAD, &bytesQueued) == -1) {
return (qint64) - 1;
}
return bytesQueued;
}
/*!
Translates a system-specific error code to a QextSerialPort error code. Used internally.
*/
void QextSerialPortPrivate::translateError(ulong error)
{
switch (error) {
case EBADF:
case ENOTTY:
lastErr = E_INVALID_FD;
break;
case EINTR:
lastErr = E_CAUGHT_NON_BLOCKED_SIGNAL;
break;
case ENOMEM:
lastErr = E_NO_MEMORY;
break;
case EACCES:
lastErr = E_PERMISSION_DENIED;
break;
case EAGAIN:
lastErr = E_AGAIN;
break;
}
}
void QextSerialPortPrivate::setDtr_sys(bool set)
{
int status;
::ioctl(fd, TIOCMGET, &status);
if (set) {
status |= TIOCM_DTR;
} else {
status &= ~TIOCM_DTR;
}
::ioctl(fd, TIOCMSET, &status);
}
void QextSerialPortPrivate::setRts_sys(bool set)
{
int status;
::ioctl(fd, TIOCMGET, &status);
if (set) {
status |= TIOCM_RTS;
} else {
status &= ~TIOCM_RTS;
}
::ioctl(fd, TIOCMSET, &status);
}
unsigned long QextSerialPortPrivate::lineStatus_sys()
{
unsigned long Status = 0, Temp = 0;
::ioctl(fd, TIOCMGET, &Temp);
if (Temp & TIOCM_CTS) {
Status |= LS_CTS;
}
if (Temp & TIOCM_DSR) {
Status |= LS_DSR;
}
if (Temp & TIOCM_RI) {
Status |= LS_RI;
}
if (Temp & TIOCM_CD) {
Status |= LS_DCD;
}
if (Temp & TIOCM_DTR) {
Status |= LS_DTR;
}
if (Temp & TIOCM_RTS) {
Status |= LS_RTS;
}
if (Temp & TIOCM_ST) {
Status |= LS_ST;
}
if (Temp & TIOCM_SR) {
Status |= LS_SR;
}
return Status;
}
/*!
Reads a block of data from the serial port. This function will read at most maxSize bytes from
the serial port and place them in the buffer pointed to by data. Return value is the number of
bytes actually read, or -1 on error.
\warning before calling this function ensure that serial port associated with this class
is currently open (use isOpen() function to check if port is open).
*/
qint64 QextSerialPortPrivate::readData_sys(char *data, qint64 maxSize)
{
int retVal = ::read(fd, data, maxSize);
if (retVal == -1) {
lastErr = E_READ_FAILED;
}
return retVal;
}
/*!
Writes a block of data to the serial port. This function will write maxSize bytes
from the buffer pointed to by data to the serial port. Return value is the number
of bytes actually written, or -1 on error.
\warning before calling this function ensure that serial port associated with this class
is currently open (use isOpen() function to check if port is open).
*/
qint64 QextSerialPortPrivate::writeData_sys(const char *data, qint64 maxSize)
{
int retVal = ::write(fd, data, maxSize);
if (retVal == -1) {
lastErr = E_WRITE_FAILED;
}
return (qint64)retVal;
}
static void setBaudRate2Termios(termios *config, int baudRate)
{
#ifdef CBAUD
config->c_cflag &= (~CBAUD);
config->c_cflag |= baudRate;
#else
::cfsetispeed(config, baudRate);
::cfsetospeed(config, baudRate);
#endif
}
/*
All the platform settings was performed in this function.
*/
void QextSerialPortPrivate::updatePortSettings()
{
if (!q_func()->isOpen() || !settingsDirtyFlags) {
return;
}
if (settingsDirtyFlags & DFE_BaudRate) {
switch (settings.BaudRate) {
case BAUD50:
setBaudRate2Termios(&currentTermios, B50);
break;
case BAUD75:
setBaudRate2Termios(&currentTermios, B75);
break;
case BAUD110:
setBaudRate2Termios(&currentTermios, B110);
break;
case BAUD134:
setBaudRate2Termios(&currentTermios, B134);
break;
case BAUD150:
setBaudRate2Termios(&currentTermios, B150);
break;
case BAUD200:
setBaudRate2Termios(&currentTermios, B200);
break;
case BAUD300:
setBaudRate2Termios(&currentTermios, B300);
break;
case BAUD600:
setBaudRate2Termios(&currentTermios, B600);
break;
case BAUD1200:
setBaudRate2Termios(&currentTermios, B1200);
break;
case BAUD1800:
setBaudRate2Termios(&currentTermios, B1800);
break;
case BAUD2400:
setBaudRate2Termios(&currentTermios, B2400);
break;
case BAUD4800:
setBaudRate2Termios(&currentTermios, B4800);
break;
case BAUD9600:
setBaudRate2Termios(&currentTermios, B9600);
break;
case BAUD19200:
setBaudRate2Termios(&currentTermios, B19200);
break;
case BAUD38400:
setBaudRate2Termios(&currentTermios, B38400);
break;
case BAUD57600:
setBaudRate2Termios(&currentTermios, B57600);
break;
#ifdef B76800
case BAUD76800:
setBaudRate2Termios(&currentTermios, B76800);
break;
#endif
case BAUD115200:
setBaudRate2Termios(&currentTermios, B115200);
break;
#if defined(B230400) && defined(B4000000)
case BAUD230400:
setBaudRate2Termios(&currentTermios, B230400);
break;
case BAUD460800:
setBaudRate2Termios(&currentTermios, B460800);
break;
case BAUD500000:
setBaudRate2Termios(&currentTermios, B500000);
break;
case BAUD576000:
setBaudRate2Termios(&currentTermios, B576000);
break;
case BAUD921600:
setBaudRate2Termios(&currentTermios, B921600);
break;
case BAUD1000000:
setBaudRate2Termios(&currentTermios, B1000000);
break;
case BAUD1152000:
setBaudRate2Termios(&currentTermios, B1152000);
break;
case BAUD1500000:
setBaudRate2Termios(&currentTermios, B1500000);
break;
case BAUD2000000:
setBaudRate2Termios(&currentTermios, B2000000);
break;
case BAUD2500000:
setBaudRate2Termios(&currentTermios, B2500000);
break;
case BAUD3000000:
setBaudRate2Termios(&currentTermios, B3000000);
break;
case BAUD3500000:
setBaudRate2Termios(&currentTermios, B3500000);
break;
case BAUD4000000:
setBaudRate2Termios(&currentTermios, B4000000);
break;
#endif
#ifdef Q_OS_MAC
default:
setBaudRate2Termios(&currentTermios, settings.BaudRate);
break;
#endif
}
}
if (settingsDirtyFlags & DFE_Parity) {
switch (settings.Parity) {
case PAR_SPACE:
/*space parity not directly supported - add an extra data bit to simulate it*/
settingsDirtyFlags |= DFE_DataBits;
break;
case PAR_NONE:
currentTermios.c_cflag &= (~PARENB);
break;
case PAR_EVEN:
currentTermios.c_cflag &= (~PARODD);
currentTermios.c_cflag |= PARENB;
break;
case PAR_ODD:
currentTermios.c_cflag |= (PARENB | PARODD);
break;
}
}
/*must after Parity settings*/
if (settingsDirtyFlags & DFE_DataBits) {
if (settings.Parity != PAR_SPACE) {
currentTermios.c_cflag &= (~CSIZE);
switch (settings.DataBits) {
case DATA_5:
currentTermios.c_cflag |= CS5;
break;
case DATA_6:
currentTermios.c_cflag |= CS6;
break;
case DATA_7:
currentTermios.c_cflag |= CS7;
break;
case DATA_8:
currentTermios.c_cflag |= CS8;
break;
}
} else {
/*space parity not directly supported - add an extra data bit to simulate it*/
currentTermios.c_cflag &= ~(PARENB | CSIZE);
switch (settings.DataBits) {
case DATA_5:
currentTermios.c_cflag |= CS6;
break;
case DATA_6:
currentTermios.c_cflag |= CS7;
break;
case DATA_7:
currentTermios.c_cflag |= CS8;
break;
case DATA_8:
/*this will never happen, put here to Suppress an warning*/
break;
}
}
}
if (settingsDirtyFlags & DFE_StopBits) {
switch (settings.StopBits) {
case STOP_1:
currentTermios.c_cflag &= (~CSTOPB);
break;
case STOP_2:
currentTermios.c_cflag |= CSTOPB;
break;
}
}
if (settingsDirtyFlags & DFE_Flow) {
switch (settings.FlowControl) {
case FLOW_OFF:
currentTermios.c_cflag &= (~CRTSCTS);
currentTermios.c_iflag &= (~(IXON | IXOFF | IXANY));
break;
case FLOW_XONXOFF:
/*software (XON/XOFF) flow control*/
currentTermios.c_cflag &= (~CRTSCTS);
currentTermios.c_iflag |= (IXON | IXOFF | IXANY);
break;
case FLOW_HARDWARE:
currentTermios.c_cflag |= CRTSCTS;
currentTermios.c_iflag &= (~(IXON | IXOFF | IXANY));
break;
}
}
/*if any thing in currentTermios changed, flush*/
if (settingsDirtyFlags & DFE_Settings_Mask) {
::tcsetattr(fd, TCSAFLUSH, &currentTermios);
}
if (settingsDirtyFlags & DFE_TimeOut) {
int millisec = settings.Timeout_Millisec;
if (millisec == -1) {
::fcntl(fd, F_SETFL, O_NDELAY);
} else {
//O_SYNC should enable blocking ::write()
//however this seems not working on Linux 2.6.21 (works on OpenBSD 4.2)
::fcntl(fd, F_SETFL, O_SYNC);
}
::tcgetattr(fd, &currentTermios);
currentTermios.c_cc[VTIME] = millisec / 100;
::tcsetattr(fd, TCSAFLUSH, &currentTermios);
}
settingsDirtyFlags = 0;
}

482
tool/3rd_qextserialport/qextserialport_win.cpp Normal file
View File

@@ -0,0 +1,482 @@
/****************************************************************************
** Copyright (c) 2000-2003 Wayne Roth
** Copyright (c) 2004-2007 Stefan Sander
** Copyright (c) 2007 Michal Policht
** Copyright (c) 2008 Brandon Fosdick
** Copyright (c) 2009-2010 Liam Staskawicz
** Copyright (c) 2011 Debao Zhang
** All right reserved.
** Web: http://code.google.com/p/qextserialport/
**
** Permission is hereby granted, free of charge, to any person obtaining
** a copy of this software and associated documentation files (the
** "Software"), to deal in the Software without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Software, and to
** permit persons to whom the Software is furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be
** included in all copies or substantial portions of the Software.
**
** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
** NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
** LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
** OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
** WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
**
****************************************************************************/
#include "qextserialport.h"
#include "qextserialport_p.h"
#include <QtCore/QThread>
#include <QtCore/QReadWriteLock>
#include <QtCore/QMutexLocker>
#include <QtCore/QDebug>
#include <QtCore/QMetaType>
#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
#include <QtCore/QWinEventNotifier>
#else
#include <QtCore/private/qwineventnotifier_p.h>
#endif
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
#include <QtCore5Compat/QRegExp>
#else
#include <QtCore/QRegExp>
#endif
void QextSerialPortPrivate::platformSpecificInit()
{
handle = INVALID_HANDLE_VALUE;
ZeroMemory(&overlap, sizeof(OVERLAPPED));
overlap.hEvent = CreateEvent(NULL, true, false, NULL);
winEventNotifier = 0;
bytesToWriteLock = new QReadWriteLock;
}
void QextSerialPortPrivate::platformSpecificDestruct()
{
CloseHandle(overlap.hEvent);
delete bytesToWriteLock;
}
/*!
\internal
COM ports greater than 9 need \\.\ prepended
This is only need when open the port.
*/
static QString fullPortNameWin(const QString &name)
{
QRegExp rx(QLatin1String("^COM(\\d+)"));
QString fullName(name);
if (rx.indexIn(fullName) >= 0) {
fullName.prepend(QLatin1String("\\\\.\\"));
}
return fullName;
}
bool QextSerialPortPrivate::open_sys(QIODevice::OpenMode mode)
{
Q_Q(QextSerialPort);
DWORD confSize = sizeof(COMMCONFIG);
commConfig.dwSize = confSize;
DWORD dwFlagsAndAttributes = 0;
if (queryMode == QextSerialPort::EventDriven) {
dwFlagsAndAttributes += FILE_FLAG_OVERLAPPED;
}
/*open the port*/
handle = CreateFileW((wchar_t *)fullPortNameWin(port).utf16(), GENERIC_READ | GENERIC_WRITE,
0, NULL, OPEN_EXISTING, dwFlagsAndAttributes, NULL);
if (handle != INVALID_HANDLE_VALUE) {
q->setOpenMode(mode);
/*configure port settings*/
GetCommConfig(handle, &commConfig, &confSize);
GetCommState(handle, &(commConfig.dcb));
/*set up parameters*/
commConfig.dcb.fBinary = TRUE;
commConfig.dcb.fInX = FALSE;
commConfig.dcb.fOutX = FALSE;
commConfig.dcb.fAbortOnError = FALSE;
commConfig.dcb.fNull = FALSE;
/* Dtr default to true. See Issue 122*/
commConfig.dcb.fDtrControl = TRUE;
/*flush all settings*/
settingsDirtyFlags = DFE_ALL;
updatePortSettings();
//init event driven approach
if (queryMode == QextSerialPort::EventDriven) {
if (!SetCommMask(handle, EV_TXEMPTY | EV_RXCHAR | EV_DSR)) {
QESP_WARNING() << "failed to set Comm Mask. Error code:" << GetLastError();
return false;
}
winEventNotifier = new QWinEventNotifier(overlap.hEvent, q);
qRegisterMetaType<HANDLE>("HANDLE");
q->connect(winEventNotifier, SIGNAL(activated(HANDLE)), q, SLOT(_q_onWinEvent(HANDLE)), Qt::DirectConnection);
WaitCommEvent(handle, &eventMask, &overlap);
}
return true;
}
return false;
}
bool QextSerialPortPrivate::close_sys()
{
flush_sys();
CancelIo(handle);
if (CloseHandle(handle)) {
handle = INVALID_HANDLE_VALUE;
}
if (winEventNotifier) {
winEventNotifier->setEnabled(false);
winEventNotifier->deleteLater();
winEventNotifier = 0;
}
foreach (OVERLAPPED *o, pendingWrites) {
CloseHandle(o->hEvent);
delete o;
}
pendingWrites.clear();
return true;
}
bool QextSerialPortPrivate::flush_sys()
{
FlushFileBuffers(handle);
return true;
}
qint64 QextSerialPortPrivate::bytesAvailable_sys() const
{
DWORD Errors;
COMSTAT Status;
if (ClearCommError(handle, &Errors, &Status)) {
return Status.cbInQue;
}
return (qint64) - 1;
}
/*
Translates a system-specific error code to a QextSerialPort error code. Used internally.
*/
void QextSerialPortPrivate::translateError(ulong error)
{
if (error & CE_BREAK) {
lastErr = E_BREAK_CONDITION;
} else if (error & CE_FRAME) {
lastErr = E_FRAMING_ERROR;
} else if (error & CE_IOE) {
lastErr = E_IO_ERROR;
} else if (error & CE_MODE) {
lastErr = E_INVALID_FD;
} else if (error & CE_OVERRUN) {
lastErr = E_BUFFER_OVERRUN;
} else if (error & CE_RXPARITY) {
lastErr = E_RECEIVE_PARITY_ERROR;
} else if (error & CE_RXOVER) {
lastErr = E_RECEIVE_OVERFLOW;
} else if (error & CE_TXFULL) {
lastErr = E_TRANSMIT_OVERFLOW;
}
}
/*
Reads a block of data from the serial port. This function will read at most maxlen bytes from
the serial port and place them in the buffer pointed to by data. Return value is the number of
bytes actually read, or -1 on error.
\warning before calling this function ensure that serial port associated with this class
is currently open (use isOpen() function to check if port is open).
*/
qint64 QextSerialPortPrivate::readData_sys(char *data, qint64 maxSize)
{
DWORD bytesRead = 0;
bool failed = false;
if (queryMode == QextSerialPort::EventDriven) {
OVERLAPPED overlapRead;
ZeroMemory(&overlapRead, sizeof(OVERLAPPED));
if (!ReadFile(handle, (void *)data, (DWORD)maxSize, &bytesRead, &overlapRead)) {
if (GetLastError() == ERROR_IO_PENDING) {
GetOverlappedResult(handle, &overlapRead, &bytesRead, true);
} else {
failed = true;
}
}
} else if (!ReadFile(handle, (void *)data, (DWORD)maxSize, &bytesRead, NULL)) {
failed = true;
}
if (!failed) {
return (qint64)bytesRead;
}
lastErr = E_READ_FAILED;
return -1;
}
/*
Writes a block of data to the serial port. This function will write len bytes
from the buffer pointed to by data to the serial port. Return value is the number
of bytes actually written, or -1 on error.
\warning before calling this function ensure that serial port associated with this class
is currently open (use isOpen() function to check if port is open).
*/
qint64 QextSerialPortPrivate::writeData_sys(const char *data, qint64 maxSize)
{
DWORD bytesWritten = 0;
bool failed = false;
if (queryMode == QextSerialPort::EventDriven) {
OVERLAPPED *newOverlapWrite = new OVERLAPPED;
ZeroMemory(newOverlapWrite, sizeof(OVERLAPPED));
newOverlapWrite->hEvent = CreateEvent(NULL, true, false, NULL);
if (WriteFile(handle, (void *)data, (DWORD)maxSize, &bytesWritten, newOverlapWrite)) {
CloseHandle(newOverlapWrite->hEvent);
delete newOverlapWrite;
} else if (GetLastError() == ERROR_IO_PENDING) {
// writing asynchronously...not an error
QWriteLocker writelocker(bytesToWriteLock);
pendingWrites.append(newOverlapWrite);
} else {
QESP_WARNING() << "QextSerialPort write error:" << GetLastError();
failed = true;
if (!CancelIo(newOverlapWrite->hEvent)) {
QESP_WARNING("QextSerialPort: couldn't cancel IO");
}
if (!CloseHandle(newOverlapWrite->hEvent)) {
QESP_WARNING("QextSerialPort: couldn't close OVERLAPPED handle");
}
delete newOverlapWrite;
}
} else if (!WriteFile(handle, (void *)data, (DWORD)maxSize, &bytesWritten, NULL)) {
failed = true;
}
if (!failed) {
return (qint64)bytesWritten;
}
lastErr = E_WRITE_FAILED;
return -1;
}
void QextSerialPortPrivate::setDtr_sys(bool set)
{
EscapeCommFunction(handle, set ? SETDTR : CLRDTR);
}
void QextSerialPortPrivate::setRts_sys(bool set)
{
EscapeCommFunction(handle, set ? SETRTS : CLRRTS);
}
ulong QextSerialPortPrivate::lineStatus_sys(void)
{
unsigned long Status = 0, Temp = 0;
GetCommModemStatus(handle, &Temp);
if (Temp & MS_CTS_ON) {
Status |= LS_CTS;
}
if (Temp & MS_DSR_ON) {
Status |= LS_DSR;
}
if (Temp & MS_RING_ON) {
Status |= LS_RI;
}
if (Temp & MS_RLSD_ON) {
Status |= LS_DCD;
}
return Status;
}
/*
Triggered when there's activity on our HANDLE.
*/
void QextSerialPortPrivate::_q_onWinEvent(HANDLE h)
{
Q_Q(QextSerialPort);
if (h == overlap.hEvent) {
if (eventMask & EV_RXCHAR) {
if (q->sender() != q && bytesAvailable_sys() > 0) {
_q_canRead();
}
}
if (eventMask & EV_TXEMPTY) {
/*
A write completed. Run through the list of OVERLAPPED writes, and if
they completed successfully, take them off the list and delete them.
Otherwise, leave them on there so they can finish.
*/
qint64 totalBytesWritten = 0;
QList<OVERLAPPED *> overlapsToDelete;
foreach (OVERLAPPED *o, pendingWrites) {
DWORD numBytes = 0;
if (GetOverlappedResult(handle, o, &numBytes, false)) {
overlapsToDelete.append(o);
totalBytesWritten += numBytes;
} else if (GetLastError() != ERROR_IO_INCOMPLETE) {
overlapsToDelete.append(o);
QESP_WARNING() << "CommEvent overlapped write error:" << GetLastError();
}
}
if (q->sender() != q && totalBytesWritten > 0) {
QWriteLocker writelocker(bytesToWriteLock);
Q_EMIT q->bytesWritten(totalBytesWritten);
}
foreach (OVERLAPPED *o, overlapsToDelete) {
OVERLAPPED *toDelete = pendingWrites.takeAt(pendingWrites.indexOf(o));
CloseHandle(toDelete->hEvent);
delete toDelete;
}
}
if (eventMask & EV_DSR) {
if (lineStatus_sys() & LS_DSR) {
Q_EMIT q->dsrChanged(true);
} else {
Q_EMIT q->dsrChanged(false);
}
}
}
WaitCommEvent(handle, &eventMask, &overlap);
}
void QextSerialPortPrivate::updatePortSettings()
{
if (!q_ptr->isOpen() || !settingsDirtyFlags) {
return;
}
//fill struct : COMMCONFIG
if (settingsDirtyFlags & DFE_BaudRate) {
commConfig.dcb.BaudRate = settings.BaudRate;
}
if (settingsDirtyFlags & DFE_Parity) {
commConfig.dcb.Parity = (BYTE)settings.Parity;
commConfig.dcb.fParity = (settings.Parity == PAR_NONE) ? FALSE : TRUE;
}
if (settingsDirtyFlags & DFE_DataBits) {
commConfig.dcb.ByteSize = (BYTE)settings.DataBits;
}
if (settingsDirtyFlags & DFE_StopBits) {
switch (settings.StopBits) {
case STOP_1:
commConfig.dcb.StopBits = ONESTOPBIT;
break;
case STOP_1_5:
commConfig.dcb.StopBits = ONE5STOPBITS;
break;
case STOP_2:
commConfig.dcb.StopBits = TWOSTOPBITS;
break;
}
}
if (settingsDirtyFlags & DFE_Flow) {
switch (settings.FlowControl) {
/*no flow control*/
case FLOW_OFF:
commConfig.dcb.fOutxCtsFlow = FALSE;
commConfig.dcb.fRtsControl = RTS_CONTROL_DISABLE;
commConfig.dcb.fInX = FALSE;
commConfig.dcb.fOutX = FALSE;
break;
/*software (XON/XOFF) flow control*/
case FLOW_XONXOFF:
commConfig.dcb.fOutxCtsFlow = FALSE;
commConfig.dcb.fRtsControl = RTS_CONTROL_DISABLE;
commConfig.dcb.fInX = TRUE;
commConfig.dcb.fOutX = TRUE;
break;
/*hardware flow control*/
case FLOW_HARDWARE:
commConfig.dcb.fOutxCtsFlow = TRUE;
commConfig.dcb.fRtsControl = RTS_CONTROL_HANDSHAKE;
commConfig.dcb.fInX = FALSE;
commConfig.dcb.fOutX = FALSE;
break;
}
}
//fill struct : COMMTIMEOUTS
if (settingsDirtyFlags & DFE_TimeOut) {
if (queryMode != QextSerialPort::EventDriven) {
int millisec = settings.Timeout_Millisec;
if (millisec == -1) {
commTimeouts.ReadIntervalTimeout = MAXDWORD;
commTimeouts.ReadTotalTimeoutConstant = 0;
} else {
commTimeouts.ReadIntervalTimeout = millisec;
commTimeouts.ReadTotalTimeoutConstant = millisec;
}
commTimeouts.ReadTotalTimeoutMultiplier = 0;
commTimeouts.WriteTotalTimeoutMultiplier = millisec;
commTimeouts.WriteTotalTimeoutConstant = 0;
} else {
commTimeouts.ReadIntervalTimeout = MAXDWORD;
commTimeouts.ReadTotalTimeoutMultiplier = 0;
commTimeouts.ReadTotalTimeoutConstant = 0;
commTimeouts.WriteTotalTimeoutMultiplier = 0;
commTimeouts.WriteTotalTimeoutConstant = 0;
}
}
if (settingsDirtyFlags & DFE_Settings_Mask) {
SetCommConfig(handle, &commConfig, sizeof(COMMCONFIG));
}
if ((settingsDirtyFlags & DFE_TimeOut)) {
SetCommTimeouts(handle, &commTimeouts);
}
settingsDirtyFlags = 0;
}