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cxchannel_serial.cpp
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cxchannel_serial.cpp
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#include "cxchannel_serial.h"
using namespace std;
//CxChannelSerialFactory* CxChannelSerialFactory::s_instance =
// CxChannelFactoryManager::createAndRegister<CxChannelSerialFactory>();
#if defined(GM_OS_WIN)
const string CSDefaultSerialPortNames[9] = {"COM1", "COM2", "COM3", "COM4", "COM5", "COM6", "COM7", "COM8", "COM9"};
#elif defined(GM_OS_IRIX)
const string CSDefaultSerialPortNames[9] = {"/dev/ttyf1", "/dev/ttyf2", "/dev/ttyf3", "/dev/ttyf4", "/dev/ttyf5"
, "/dev/ttyf6", "/dev/ttyf7", "/dev/ttyf8", "/dev/ttyf9" };
#elif defined(GM_OS_HPUX)
const string CSDefaultSerialPortNames[9] = {"/dev/tty1p0", "/dev/tty2p0", "/dev/tty3p0", "/dev/tty4p0", "/dev/tty5p0"
, "/dev/tty6p0", "/dev/tty7p0", "/dev/tty8p0", "/dev/tty9p0" };
#elif defined(GM_OS_SOLARIS)
const string CSDefaultSerialPortNames[9] = {"/dev/ttya", "/dev/ttyb", "/dev/ttyc", "/dev/ttyd", "/dev/ttye"
, "/dev/ttyf", "/dev/ttyg", "/dev/ttyh", "/dev/ttyi" };
#elif defined(GM_OS_DIGITAL)
const string CSDefaultSerialPortNames[9] = {"/dev/tty01", "/dev/tty02", "/dev/tty03", "/dev/tty04", "/dev/tty05"
, "/dev/tty06", "/dev/tty07", "/dev/tty08", "/dev/tty09" };
#elif defined(GM_OS_FREEBSD)
const string CSDefaultSerialPortNames[9] = {"/dev/ttyd1", "/dev/ttyd2", "/dev/ttyd3", "/dev/ttyd4", "/dev/ttyd5"
, "/dev/ttyd6", "/dev/ttyd7", "/dev/ttyd8", "/dev/ttyd9" };
#else
const string CSDefaultSerialPortNames[9] = {"/dev/ttyS1", "/dev/ttyS2", "/dev/ttyS3", "/dev/ttyS4", "/dev/ttyS5"
, "/dev/ttyS6", "/dev/ttyS7", "/dev/ttyS8", "/dev/ttyS9" };
#endif
const string CSDefaultSerialPortName = CSDefaultSerialPortNames[0];
const int CIDefaultSerialBaudRate = CxChannelSerial::BaudRate_9600;
const int CIDefaultSerialFlowControl = CxChannelSerial::flowNone;
const int CIDefaultSerialParity = CxChannelSerial::parityNone;
const int CIDefaultSerialStopBits = CxChannelSerial::stopBitsOne;
const int CIDefaultSerialCharacterSize = CxChannelSerial::CharacterSizeEight;
//PortName = \\.\COM1
//BaudRate = 6
//CharacterSize = 4
//StopBits = 1
//Parity = 0
//FlowControl = 0
#include "cxthread.h"
#ifdef GM_OS_WIN
#include <io.h>
#else
#include <sys/ioctl.h>
#include <termios.h>
#endif
#include <fcntl.h>
#include <cerrno>
#include <iostream>
using std::streambuf;
using std::iostream;
using std::ios;
#ifndef MAX_INPUT
#define MAX_INPUT 255
#endif
#ifndef MAX_CANON
#define MAX_CANON MAX_INPUT
#endif
#ifdef __FreeBSD__
#undef _PC_MAX_INPUT
#undef _PC_MAX_CANON
#endif
#if defined(__QNX__)
#define CRTSCTS (IHFLOW | OHFLOW)
#endif
#if defined(_THR_UNIXWARE) || defined(__hpux) || defined(_AIX)
#include <sys/termiox.h>
#define CRTSCTS (CTSXON | RTSXOFF)
#endif
// IRIX
#ifndef CRTSCTS
#ifdef CNEW_RTSCTS
#define CRTSCTS (CNEW_RTSCTS)
#endif
#endif
#if defined(CTSXON) && defined(RTSXOFF) && !defined(CRTSCTS)
#define CRTSCTS (CTSXON | RTSXOFF)
#endif
#ifndef CRTSCTS
#define CRTSCTS 0
#endif
void CxChannelSerial::initConfig(void)
{
#ifdef GM_OS_WIN
#define ASCII_XON 0x11
#define ASCII_XOFF 0x13
DCB *attr = (DCB *) current;
DCB *orig = (DCB *) original;
GetCommState(dev, orig);
GetCommState(dev, attr);
attr->DCBlength = sizeof(DCB);
orig->DCBlength = sizeof(DCB);
// attr->BaudRate = 9600;
// attr->ByteSize = 8;
// attr->XoffLim = 512;
// attr->XonLim = 2048;
// attr->fBinary = 1;
// attr->fTXContinueOnXoff = 1;
// SetCommState(dev, attr);
COMMTIMEOUTS CommTimeouts;
CommTimeouts.ReadIntervalTimeout = 100;
CommTimeouts.ReadTotalTimeoutConstant = 0;
CommTimeouts.ReadTotalTimeoutMultiplier = 0;
CommTimeouts.WriteTotalTimeoutConstant = 0;
CommTimeouts.WriteTotalTimeoutMultiplier = 0;
::SetCommTimeouts(dev, &CommTimeouts);
#else
struct termios *attr = (struct termios *)current;
struct termios *orig = (struct termios *)original;
long ioflags = fcntl(dev, F_GETFL);
tcgetattr(dev, (struct termios *)original);
tcgetattr(dev, (struct termios *)current);
attr->c_oflag = attr->c_lflag = 0;
attr->c_cflag = CLOCAL | CREAD | HUPCL;
attr->c_iflag = IGNBRK;
memset(attr->c_cc, 0, sizeof(attr->c_cc));
attr->c_cc[VMIN] = 1;
// inherit original settings, maybe we should keep more??
cfsetispeed(attr, cfgetispeed(orig));
cfsetospeed(attr, cfgetospeed(orig));
attr->c_cflag |= orig->c_cflag & (CRTSCTS | CSIZE | PARENB | PARODD | CSTOPB);
attr->c_iflag |= orig->c_iflag & (IXON | IXANY | IXOFF);
tcsetattr(dev, TCSANOW, attr);
fcntl(dev, F_SETFL, ioflags & ~O_NDELAY);
#if defined(TIOCM_RTS) && defined(TIOCMODG)
int mcs = 0;
ioctl(dev, TIOCMODG, &mcs);
mcs |= TIOCM_RTS;
ioctl(dev, TIOCMODS, &mcs);
#endif
#ifdef _COHERENT
ioctl(dev, TIOCSRTS, 0);
#endif
#endif // WIN32
}
void CxChannelSerial::restore(void)
{
#ifdef GM_OS_WIN
memcpy(current, original, sizeof(DCB));
SetCommState(dev, (DCB *) current);
#else
memcpy(current, original, sizeof(struct termios));
tcsetattr(dev, TCSANOW, (struct termios *)current);
#endif
}
void CxChannelSerial::initSerial(void)
{
dev = INVALID_HANDLE_VALUE;
#ifdef GM_OS_WIN
current = new DCB;
original = new DCB;
#else
current = new struct termios;
original = new struct termios;
#endif
}
void CxChannelSerial::endSerial(void)
{
#ifdef GM_OS_WIN
if (dev == INVALID_HANDLE_VALUE && original)
SetCommState(dev, (DCB *) original);
if (current)
delete (DCB *) current;
if (original)
delete (DCB *) original;
#else
if(dev < 0 && original)
tcsetattr(dev, TCSANOW, (struct termios *)original);
if(current)
delete (struct termios *)current;
if(original)
delete (struct termios *)original;
#endif
CxChannelSerial::doClose();
current = NULL;
original = NULL;
}
int CxChannelSerial::setPacketInput(int size, unsigned char btimer)
{
#ifdef GM_OS_WIN
// Still to be done......
return 0;
#else
#ifdef _PC_MAX_INPUT
int max = fpathconf(dev, _PC_MAX_INPUT);
#else
int max = MAX_INPUT;
#endif
struct termios *attr = (struct termios *)current;
if(size > max)
size = max;
attr->c_cc[VEOL] = attr->c_cc[VEOL2] = 0;
attr->c_cc[VMIN] = (unsigned char)size;
attr->c_cc[VTIME] = btimer;
attr->c_lflag &= ~ICANON;
tcsetattr(dev, TCSANOW, attr);
return size;
#endif
}
int CxChannelSerial::setLineInput(char newline, char nl1)
{
#ifdef GM_OS_WIN
// Still to be done......
return 0;
#else
struct termios *attr = (struct termios *)current;
attr->c_cc[VMIN] = attr->c_cc[VTIME] = 0;
attr->c_cc[VEOL] = newline;
attr->c_cc[VEOL2] = nl1;
attr->c_lflag |= ICANON;
tcsetattr(dev, TCSANOW, attr);
int bufsize;
#ifdef _PC_MAX_CANON
bufsize = fpathconf(dev, _PC_MAX_CANON);
#else
bufsize = MAX_CANON;
#endif
return bufsize;
#endif
}
void CxChannelSerial::flushInput(void)
{
#ifdef GM_OS_WIN
PurgeComm(dev, PURGE_RXABORT | PURGE_RXCLEAR);
#else
tcflush(dev, TCIFLUSH);
#endif
}
void CxChannelSerial::flushOutput(void)
{
#ifdef GM_OS_WIN
PurgeComm(dev, PURGE_TXABORT | PURGE_TXCLEAR);
#else
tcflush(dev, TCOFLUSH);
#endif
}
void CxChannelSerial::waitOutput(void)
{
#ifdef GM_OS_WIN
#else
tcdrain(dev);
#endif
}
CxChannelSerial &CxChannelSerial::operator=(const CxChannelSerial &ser)
{
CxChannelSerial::doClose();
if (ser.dev < 0)
return *this;
#ifdef GM_OS_WIN
HANDLE process = GetCurrentProcess();
int result = DuplicateHandle(process, ser.dev, process, &dev, DUPLICATE_SAME_ACCESS, 0, 0);
if (0 == result)
{
memcpy(current, ser.current, sizeof(DCB));
memcpy(original, ser.original, sizeof(DCB));
}
#else
dev = dup(ser.dev);
memcpy(current, ser.current, sizeof(struct termios));
memcpy(original, ser.original, sizeof(struct termios));
#endif
//needtodo
return *this;
}
void CxChannelSerial::doOpen()
{
#ifdef GM_OS_WIN
// open COMM device
// https://stackoverflow.com/questions/27909666/createfile-serial-communication-issue
// CreateFile() is successful when you use "COM1" through "COM9" for the name of the file;
// however, the message INVALID_HANDLE_VALUE is returned if you use "COM10" or greater.
// string sDev = "\\\\.\\" + _portName;
// dev = CreateFile(sDev.c_str(),
string sDev = (_portName.find("\\\\.\\") == string::npos) ? "\\\\.\\" + _portName : _portName;
dev = CreateFile(sDev.c_str(),
GENERIC_READ | GENERIC_WRITE,
0, // exclusive access
NULL, // no security attrs
OPEN_EXISTING,
FILE_FLAG_OVERLAPPED,
NULL);
if (dev == INVALID_HANDLE_VALUE)
{
cxPrompt() << "Serial Fail: CreateFile, dev= " << sDev;
return;
}
if (GetFileType(dev) != FILE_TYPE_CHAR)
{
CloseHandle(dev);
cxPrompt() << "Serial Fail: File handle is not a comm handle.";
return;
}
if (!SetupComm(dev, 4096, 4096))
{
CloseHandle(dev);
cxPrompt() << "Serial Fail: SetupComm( dev, 4096, 4096 ).";
return;
}
// purge any information in the buffer
PurgeComm(dev, PURGE_TXABORT | PURGE_RXABORT | PURGE_TXCLEAR | PURGE_RXCLEAR);
initConfig();
#else
int cflags = O_RDWR | O_NDELAY;
dev = ::open(_portName.c_str(), cflags);
if(dev <= -1)
{
cxPrompt() << 'Serial Fail: open, dev= ' << _portName;
return;
}
initConfig();
#endif
}
void CxChannelSerial::doClose()
{
if (dev != INVALID_HANDLE_VALUE)
{
#ifdef GM_OS_WIN
CloseHandle(dev);
#else
::close(dev);
#endif
dev = INVALID_HANDLE_VALUE;
}
}
bool CxChannelSerial::doSetSpeed(BaudRateEnum baudRate)
{
unsigned long rate;
switch (baudRate)
{
case BaudRate_256000:
rate = 256000;
break;
case BaudRate_128000:
rate = 128000;
break;
case BaudRate_115200:
rate = 115200;
break;
case BaudRate_57600:
rate = 57600;
break;
case BaudRate_56000:
rate = 56000;
break;
case BaudRate_38400:
rate = 38400;
break;
case BaudRate_19200:
rate = 19200;
break;
case BaudRate_14400:
rate = 14400;
break;
case BaudRate_9600:
rate = 9600;
break;
case BaudRate_4800:
rate = 4800;
break;
case BaudRate_2400:
rate = 2400;
break;
case BaudRate_1200:
rate = 1200;
break;
case BaudRate_600:
rate = 600;
break;
case BaudRate_300:
rate = 300;
break;
case BaudRate_110:
rate = 110;
break;
default:
return false;
}
#ifdef GM_OS_WIN
DCB *dcb = (DCB *) current;
dcb->DCBlength = sizeof(DCB);
dcb->BaudRate = rate;
SetCommState(dev, dcb);
#else
struct termios *attr = (struct termios *)current;
cfsetispeed(attr, rate);
cfsetospeed(attr, rate);
tcsetattr(dev, TCSANOW, attr);
#endif
return true;
}
bool CxChannelSerial::doSetFlowControl(Flow flow)
{
#ifdef GM_OS_WIN
DCB *attr = (DCB *) current;
switch (flow)
{
case flowSoft:
attr->fInX = attr->fOutX = 1;
break;
case flowBoth:
attr->fInX = attr->fOutX = 1;
case flowHard:
attr->fOutxCtsFlow = 1;
attr->fRtsControl = RTS_CONTROL_HANDSHAKE;
break;
case flowNone:
break;
default:
return false;
}
attr->XonChar = ASCII_XON;
attr->XoffChar = ASCII_XOFF;
attr->XonLim = 100;
attr->XoffLim = 100;
SetCommState(dev, attr);
#else
struct termios *attr = (struct termios *)current;
attr->c_cflag &= ~CRTSCTS;
attr->c_iflag &= ~(IXON | IXANY | IXOFF);
switch(flow) {
case flowSoft:
attr->c_iflag |= (IXON | IXANY | IXOFF);
break;
case flowBoth:
attr->c_iflag |= (IXON | IXANY | IXOFF);
case flowHard:
attr->c_cflag |= CRTSCTS;
break;
case flowNone:
break;
default:
return false;
}
tcsetattr(dev, TCSANOW, attr);
#endif
return true;
}
bool CxChannelSerial::doSetStopBits(StopBits bits)
{
#ifdef GM_OS_WIN
DCB *attr = (DCB *) current;
switch (bits)
{
case stopBitsOne:
attr->StopBits = ONESTOPBIT;
break;
case stopBuitOne5:
attr->StopBits = ONE5STOPBITS;
break;
case StopBitsTwo:
attr->StopBits = TWOSTOPBITS;
break;
default:
return false;
}
SetCommState(dev, attr);
#else
struct termios *attr = (struct termios *) current;
switch (bits)
{
case stopBitsOne:
case stopBuitOne5:
attr->c_cflag &= ~CSTOPB;
break;
case 2:
attr->c_cflag |= CSTOPB;
break;
default:
return false;
}
tcsetattr(dev, TCSANOW, attr);
#endif
return true;
}
bool CxChannelSerial::doSetCharBits(CharacterSize bits)
{
#ifdef GM_OS_WIN
DCB *attr = (DCB *) current;
switch (bits)
{
case CharacterSizeFive:
attr->ByteSize = 5;
break;
case CharacterSizeSix:
attr->ByteSize = 6;
break;
case CharacterSizeSeven:
attr->ByteSize = 7;
break;
case CharacterSizeEight:
attr->ByteSize = 8;
break;
default:
return false;
}
SetCommState(dev, attr);
#else
struct termios *attr = (struct termios *)current;
attr->c_cflag &= ~CSIZE;
switch(bits) {
case CharacterSizeFive:
attr->c_cflag |= CS5;
break;
case CharacterSizeSix:
attr->c_cflag |= CS6;
break;
case CharacterSizeSeven:
attr->c_cflag |= CS7;
break;
case CharacterSizeEight:
attr->c_cflag |= CS8;
break;
default:
return false;
}
tcsetattr(dev, TCSANOW, attr);
#endif
return true;
}
bool CxChannelSerial::doSetParity(Parity parity)
{
#ifdef GM_OS_WIN
DCB *attr = (DCB *) current;
switch (parity)
{
case parityEven:
attr->Parity = EVENPARITY;
break;
case parityOdd:
attr->Parity = ODDPARITY;
break;
case parityNone:
attr->Parity = NOPARITY;
break;
default:
return false;
}
SetCommState(dev, attr);
#else
struct termios *attr = (struct termios *)current;
attr->c_cflag &= ~(PARENB | PARODD);
switch(parity) {
case parityEven:
attr->c_cflag |= PARENB;
break;
case parityOdd:
attr->c_cflag |= (PARENB | PARODD);
break;
case parityNone:
break;
default:
return false;
}
tcsetattr(dev, TCSANOW, attr);
#endif
return true;
}
void CxChannelSerial::sendBreak(void)
{
#ifdef GM_OS_WIN
SetCommBreak(dev);
CxThread::sleep(100L);
ClearCommBreak(dev);
#else
tcsendbreak(dev, 0);
#endif
}
void CxChannelSerial::toggleDTR(timems_t millisec)
{
#ifdef GM_OS_WIN
EscapeCommFunction(dev, CLRDTR);
if (millisec)
{
CxThread::sleep(millisec);
EscapeCommFunction(dev, SETDTR);
}
#else
struct termios tty, old;
tcgetattr(dev, &tty);
tcgetattr(dev, &old);
cfsetospeed(&tty, B0);
cfsetispeed(&tty, B0);
tcsetattr(dev, TCSANOW, &tty);
if(millisec) {
CxThread::sleep(millisec);
tcsetattr(dev, TCSANOW, &old);
}
#endif
}
bool CxChannelSerial::isPending(Pending pending, timems_t timeout)
{
#ifdef GM_OS_WIN
unsigned long dwError;
COMSTAT cs;
ClearCommError(dev, &dwError, &cs);
if (timeout == 0 || ((pending == pendingInput) && (0 != cs.cbInQue)) ||
((pending == pendingOutput) && (0 != cs.cbOutQue)) || (pending == pendingError))
{
switch (pending)
{
case pendingInput:
return (0 != cs.cbInQue);
case pendingOutput:
return (0 != cs.cbOutQue);
case pendingError:
return false;
}
}
else
{
OVERLAPPED ol;
DWORD dwMask;
DWORD dwEvents = 0;
BOOL suc;
memset(&ol, 0, sizeof(OVERLAPPED));
ol.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
if (pending == pendingInput)
dwMask = EV_RXCHAR;
else if (pending == pendingOutput)
dwMask = EV_TXEMPTY;
else // on error
dwMask = EV_ERR;
SetCommMask(dev, dwMask);
// let's wait for event or timeout
if ((suc = WaitCommEvent(dev, &dwEvents, &ol)) == FALSE)
{
if (GetLastError() == ERROR_IO_PENDING)
{
DWORD transferred;
dwError = WaitForSingleObject(ol.hEvent, timeout);
if (dwError != WAIT_OBJECT_0)
SetCommMask(dev, 0);
suc = GetOverlappedResult(dev, &ol, &transferred, TRUE);
if (suc)
suc = (dwEvents & dwMask) ? TRUE : FALSE;
}
else
ClearCommError(dev, &dwError, &cs);
}
if (ol.hEvent != INVALID_HANDLE_VALUE)
CloseHandle(ol.hEvent);
if (suc == FALSE)
return false;
return true;
}
#else
int status = 0;
#ifdef HAVE_POLL
struct pollfd pfd;
pfd.fd = dev;
pfd.revents = 0;
switch(pending) {
case pendingInput:
pfd.events = POLLIN;
break;
case pendingOutput:
pfd.events = POLLOUT;
break;
case pendingError:
pfd.events = POLLERR | POLLHUP;
break;
}
status = 0;
while(status < 1) {
if(timeout == TIMEOUT_INF)
status = poll(&pfd, 1, -1);
else
status = poll(&pfd, 1, timeout);
if(status < 1) {
if(status == -1 && errno == EINTR)
continue;
return false;
}
}
if(pfd.revents & pfd.events)
return true;
#else
struct timeval tv;
fd_set grp;
struct timeval *tvp = &tv;
if(timeout == CxGlobal::inf)
tvp = NULL;
else {
tv.tv_usec = (timeout % 1000) * 1000;
tv.tv_sec = timeout / 1000;
}
FD_ZERO(&grp);
FD_SET(dev, &grp);
switch(pending) {
case pendingInput:
status = select(dev + 1, &grp, NULL, NULL, tvp);
break;
case pendingOutput:
status = select(dev + 1, NULL, &grp, NULL, tvp);
break;
case pendingError:
status = select(dev + 1, NULL, NULL, &grp, tvp);
break;
}
if(status < 1)
return false;
if(FD_ISSET(dev, &grp))
return true;
#endif
#endif // WIN32
return false;
}
CxChannelSerial::CxChannelSerial()
{
initSerial();
_portName = CSDefaultSerialPortName;
_baudRateEnum = CIDefaultSerialBaudRate;
_flowControlEnum = CIDefaultSerialFlowControl;
_parityEnum = CIDefaultSerialParity;
_stopBitsEnum = CIDefaultSerialStopBits;
_characterSizeEnum = CIDefaultSerialCharacterSize;
_receiver = NULL;
_receiverStatus = ThreadStatus_Creating;
#ifdef GM_OS_WIN
memset(&_overLapped, 0, sizeof(OVERLAPPED));
#endif
}
CxChannelSerial::~CxChannelSerial()
{
close();
endSerial();
}
void CxChannelSerial::toContext(CxISetSkv &context) const
{
CxChannelBase::toContext(context);
context.setValue(CS_EntryPortName, _portName);
context.setValue(CS_EntryBaudRate, _baudRateEnum);
context.setValue(CS_EntryCharacterSize, _characterSizeEnum);
context.setValue(CS_EntryStopBits, _stopBitsEnum);
context.setValue(CS_EntryParity, _parityEnum);
context.setValue(CS_EntryFlowControl, _flowControlEnum);
}
void CxChannelSerial::fromContext(const CxIGetSkv &context)
{
CxChannelBase::fromContext(context);
setPortName(context.getValue(CS_EntryPortName, CSDefaultSerialPortName));
setBaudRate(BaudRateEnum(context.getValue(CS_EntryBaudRate, CIDefaultSerialBaudRate)));
setCharacterSize(CharacterSize(context.getValue(CS_EntryCharacterSize, CIDefaultSerialCharacterSize)));
setStopBits(StopBits(context.getValue(CS_EntryStopBits, CIDefaultSerialStopBits)));
setParity(Parity(context.getValue(CS_EntryParity, CIDefaultSerialParity)));
setFlowControl(Flow(context.getValue(CS_EntryFlowControl, CIDefaultSerialFlowControl)));
}
void CxChannelSerial::toReport(std::vector<std::string> &sReports) const
{
sReports.push_back(CS_EntryPortName + "=" + _portName);
sReports.push_back(CS_EntryBaudRate + "=" + CxString::toString(_baudRateEnum));
sReports.push_back(CS_EntryCharacterSize + "=" + CxString::toString(_characterSizeEnum));
sReports.push_back(CS_EntryStopBits + "=" + CxString::toString(_stopBitsEnum));
sReports.push_back(CS_EntryParity + "=" + CxString::toString(_parityEnum));
sReports.push_back(CS_EntryFlowControl + "=" + CxString::toString(_flowControlEnum));
}
void CxChannelSerial::toDescribe(CxDescribeUnit &describeUnit) const
{
CxDescribeString *oEntryPortNameDescribe = describeUnit.createAndRegister<CxDescribeString>(CS_EntryPortName);
oEntryPortNameDescribe->initValue(_portName);
CxDescribeEnum *oEntryBaudRateDescribe = describeUnit.createAndRegister<CxDescribeEnum>(CS_EntryBaudRate);
oEntryBaudRateDescribe->initValue(_baudRateEnum);
oEntryBaudRateDescribe->setEnumCopeFromZero(10);
CxDescribeEnum *oEntryDataBitsDescribe = describeUnit.createAndRegister<CxDescribeEnum>(CS_EntryCharacterSize);
oEntryDataBitsDescribe->initValue(_characterSizeEnum);
oEntryDataBitsDescribe->setEnumCopeFromZero(3);
CxDescribeEnum *oEntryStopBitsDescribe = describeUnit.createAndRegister<CxDescribeEnum>(CS_EntryStopBits);
oEntryStopBitsDescribe->initValue(_stopBitsEnum);
oEntryStopBitsDescribe->setEnumCopeFromZero(1);
CxDescribeEnum *oEntryParityDescribe = describeUnit.createAndRegister<CxDescribeEnum>(CS_EntryParity);
oEntryParityDescribe->initValue(_parityEnum);
oEntryParityDescribe->setEnumCopeFromZero(2);
CxDescribeEnum *oEntryFlowDescribe = describeUnit.createAndRegister<CxDescribeEnum>(CS_EntryFlowControl);
oEntryFlowDescribe->initValue(_flowControlEnum);
oEntryFlowDescribe->setEnumCopeFromZero(3);
}
bool CxChannelSerial::isSameChannelImpl(const std::map<std::string, std::string> ¶ms) const
{
std::string sDefault = "-1";
std::string sPortName = CxContainer::value(params, CS_EntryPortName);
int iBaudRate = CxString::fromString(CxContainer::value(params, CS_EntryBaudRate, sDefault), ci_int_minus_one);
int iDataBits = CxString::fromString(CxContainer::value(params, CS_EntryCharacterSize, sDefault), ci_int_minus_one);
int iStopBits = CxString::fromString(CxContainer::value(params, CS_EntryStopBits, sDefault), ci_int_minus_one);
int iParity = CxString::fromString(CxContainer::value(params, CS_EntryParity, sDefault), ci_int_minus_one);
int iFlow = CxString::fromString(CxContainer::value(params, CS_EntryFlowControl, sDefault), ci_int_minus_one);
return sPortName == _portName
&& iBaudRate == _baudRateEnum
&& iDataBits == _characterSizeEnum
&& iStopBits == _stopBitsEnum
&& iParity == _parityEnum
&& iFlow == _flowControlEnum;
}
void CxChannelSerial::stopAndDeleteRecieverThread()
{
if (!_receiver) return;
_receiverStatus = ThreadStatus_Stop;
_receiver->waitExit();
delete _receiver;
_receiver = NULL;
}
int CxChannelSerial::writeDataImpl(const char *pData, int iLength, void *oTarget)
{
#ifdef GM_OS_WIN
unsigned long retSize = 0;
try
{
if (::WriteFile(dev, pData, iLength, &retSize, &_overLapped) == FALSE)
{
if (GetLastError() == ERROR_IO_PENDING)
{
WaitForSingleObject(_overLapped.hEvent, INFINITE);
GetOverlappedResult(dev, &_overLapped, &retSize, TRUE);
}
else
{
COMSTAT comStat;
unsigned long dwError = 0;
// Clear the com port of any error condition prior to read
::ClearCommError(dev, &dwError, &comStat);
threadEventNotify(this, ChannelEvent_Send_Error);
}
}
}
catch (...)
{
}
return retSize;
#else
ssize_t r = ::write(dev, pData, iLength);
if (r < 1 || r > iLength)
{
if (r != EAGAIN)
{
threadEventNotify(this, ChannelEvent_Send_Error);
}
}
return r;
#endif
}
void CxChannelSerial::openChannelImpl()
{
if (!getConnectedImpl())
{
doOpen();
if (getConnectedImpl())
{
if (doSetSpeed((BaudRateEnum) _baudRateEnum)
&& doSetFlowControl((Flow) _flowControlEnum)
&& doSetParity((Parity) _parityEnum)
&& doSetStopBits((StopBits) _stopBitsEnum)
&& doSetCharBits((CharacterSize) _characterSizeEnum))
{
//createAndStartReceiverThread
stopAndDeleteRecieverThread();
_receiver = new ReceiverThread();
_receiver->setStatus(&_receiverStatus);
_receiver->setChannel(this);
_receiverStatus = ThreadStatus_Start;
_receiver->start();
//createAndStartSenderThread
#ifdef GM_OS_WIN
COMSTAT comStat;
unsigned long dwError = 0;
// Clear the com port of any error condition prior to read
::ClearCommError(dev, &dwError, &comStat);
memset(&_overLapped, 0, sizeof(OVERLAPPED));
_overLapped.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
#endif
}
else
{
doClose();
}
}