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HF_JH_Y230417029/LaipuDrawing/CommPortClass.h

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红色软件上传
7 months ago
/*
Comm Base Library(WIN98/NT/2000) ver 1.1
Compile by<EFBFBD><EFBFBD> BC++ 5; C++ Builder 4, 5, 6, X; VC++ 5, 6; VC.net; GCC;
copyright(c) 2004.5 - 2005.8 llbird wushaojian@21cn.com
*/
#ifndef _CN_COMM_H_
#define _CN_COMM_H_
#pragma warning(disable: 4530)
#pragma warning(disable: 4786)
#pragma warning(disable: 4800)
//<2F><><EFBFBD>α<EFBFBD><CEB1>뾯<EFBFBD><EBBEAF>
#pragma warning(disable : 4244)
#pragma warning(disable : 4305)
#pragma warning(disable : 4996)
#pragma warning(disable : 4101)
#pragma warning(disable : 4477)
#include <assert.h>
#include <stdio.h>
#include <Windows.h>
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD>: <20>ṩ<EFBFBD><E1B9A9>ͨ<EFBFBD>õĴ<C3B5><C4B4>ڲ<EFBFBD><DAB2><EFBFBD>
/*
<EFBFBD><EFBFBD><EFBFBD>崮<EFBFBD>ڶ<EFBFBD><EFBFBD><EFBFBD>
cnComm com;
1.ʹ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD>ʼ<EFBFBD><EFBFBD>ʱ<EFBFBD>򿪴<EFBFBD><EFBFBD>ڣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ò<EFBFBD><EFBFBD><EFBFBD>
com.Open();
2.<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
com.Write(m_send);//m_sendΪ<64><CEAA><EFBFBD>͵<EFBFBD><CDB5>ַ<EFBFBD><D6B7><EFBFBD>
3.<EFBFBD><EFBFBD><EFBFBD>մ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD>Ҫ<EFBFBD>õ<EFBFBD><EFBFBD>Ի<EFBFBD><EFBFBD><EFBFBD>(<EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
Ϊ<EFBFBD><EFBFBD><EFBFBD>ڵĽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>ϢON_COM_RECEIVE
afx_msg LRESULT OnCommRecv(WPARAM wParam, LPARAM lParam);
ON_MESSAGE(ON_COM_RECEIVE,OnCommRecv)
<EFBFBD>Ի<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
com.SetWnd((*this));
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
LRESULT CSerialPortClassDlg::OnCommRecv(WPARAM wParam, LPARAM lParam)
{
<EFBFBD><EFBFBD>//<2F><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5>ַ<EFBFBD>
<EFBFBD><EFBFBD>char str[100];
<EFBFBD><EFBFBD>com.ReadString(str, 100);
}
*/
//<2F>͵<EFBFBD><CDB5><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD>Ϣ WPARAM <20>˿ں<CBBF>
#define ON_COM_RECEIVE WM_USER + 618
#define ON_COM_CTS WM_USER + 619 //LPARAM 1 valid
#define ON_COM_DSR WM_USER + 621 //LPARAM 1 valid
#define ON_COM_RING WM_USER + 623
#define ON_COM_RLSD WM_USER + 624
#define ON_COM_BREAK WM_USER + 625
#define ON_COM_TXEMPTY WM_USER + 626
#define ON_COM_ERROR WM_USER + 627 //LPARAM save Error ID
#define DEFAULT_COM_MASK_EVENT EV_RXCHAR | EV_ERR | EV_CTS | EV_DSR | EV_BREAK | EV_TXEMPTY | EV_RING | EV_RLSD
class cnComm
{
public:
//------------------------------Construction-----------------------------------
//<2F><>1<EFBFBD><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>Ƿ<EFBFBD><C7B7>ڴ򿪴<DAB4><F2BFAAB4><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̣߳<DFB3> <20><>2<EFBFBD><32><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ΪIO<49><4F>ʽ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD>0<EFBFBD><30>/ <20>첽<EFBFBD>ص<EFBFBD><D8B5><EFBFBD>ʽ<EFBFBD><CABD>Ĭ<EFBFBD>ϣ<EFBFBD>
cnComm(bool fAutoBeginThread = true, DWORD dwIOMode = FILE_FLAG_OVERLAPPED): _dwIOMode(dwIOMode), _fAutoBeginThread(fAutoBeginThread)
{
Init();
}
virtual ~cnComm()
{
Close();
UnInit();
}
//----------------------------------Attributes----------------------------------
//<2F>жϴ<D0B6><CFB4><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>
inline bool IsOpen()
{
return _hCommHandle != INVALID_HANDLE_VALUE;
}
//<2F>жϴ<D0B6><CFB4><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>
operator bool()
{
return _hCommHandle != INVALID_HANDLE_VALUE;
}
//<2F><><EFBFBD>ô<EFBFBD><C3B4>ھ<EFBFBD><DABE><EFBFBD>
inline HANDLE GetHandle()
{
return _hCommHandle;
}
//<2F><><EFBFBD>ô<EFBFBD><C3B4>ھ<EFBFBD><DABE><EFBFBD>
operator HANDLE()
{
return _hCommHandle;
}
//<2F><><EFBFBD>ô<EFBFBD><C3B4>ڲ<EFBFBD><DAB2><EFBFBD> DCB
DCB *GetState()
{
return IsOpen() && ::GetCommState(_hCommHandle, &_DCB) == TRUE ?
&_DCB: NULL;
}
//<2F><><EFBFBD>ô<EFBFBD><C3B4>ڲ<EFBFBD><DAB2><EFBFBD> DCB
bool SetState(DCB *pdcb = NULL)
{
return IsOpen() ? ::SetCommState(_hCommHandle, pdcb == NULL ? &_DCB:pdcb) == TRUE: false;
}
//<2F><><EFBFBD>ô<EFBFBD><C3B4>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD>ֹͣλ<D6B9><CEBB><EFBFBD><EFBFBD> ֧<><D6A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD> "9600, 8, n, 1"
bool SetState(char *szSetStr)
{
if (IsOpen())
{
if (::GetCommState(_hCommHandle, &_DCB) != TRUE)
return false;
if (::BuildCommDCB(szSetStr, &_DCB) != TRUE)
return false;
return ::SetCommState(_hCommHandle, &_DCB) == TRUE;
}
return false;
}
//<2F><><EFBFBD>ô<EFBFBD><C3B4>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD>ֹͣλ<D6B9><CEBB><EFBFBD><EFBFBD>
bool SetState(DWORD dwBaudRate, DWORD dwByteSize = 8, DWORD dwParity = NOPARITY, DWORD dwStopBits = ONESTOPBIT)
{
if (IsOpen())
{
if (::GetCommState(_hCommHandle, &_DCB) != TRUE)
return false;
_DCB.BaudRate = dwBaudRate;
_DCB.ByteSize = (unsigned char)dwByteSize;
_DCB.Parity = (unsigned char)dwParity;
_DCB.StopBits = (unsigned char)dwStopBits;
return ::SetCommState(_hCommHandle, &_DCB) == TRUE;
}
return false;
}
//<2F><><EFBFBD>ó<EFBFBD>ʱ<EFBFBD>ṹ
LPCOMMTIMEOUTS GetTimeouts(void)
{
return IsOpen() && ::GetCommTimeouts(_hCommHandle, &_CO) == TRUE ? &_CO: NULL;
}
//<2F><><EFBFBD>ó<EFBFBD>ʱ
bool SetTimeouts(LPCOMMTIMEOUTS lpCO)
{
return IsOpen() ? ::SetCommTimeouts(_hCommHandle, lpCO) == TRUE:false;
}
//<2F><><EFBFBD>ô<EFBFBD><C3B4>ڵ<EFBFBD>I/O<><4F><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С
bool SetBufferSize(DWORD dwInputSize, DWORD dwOutputSize)
{
return IsOpen() ? ::SetupComm(_hCommHandle, dwInputSize, dwOutputSize)== TRUE: false;
}
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD>Ĵ<EFBFBD><C4B4>ھ<EFBFBD><DABE><EFBFBD>
inline void SetWnd(HWND hWnd)
{
assert(::IsWindow(hWnd));
_hNotifyWnd = hWnd;
}
//<2F>趨<EFBFBD><E8B6A8><EFBFBD><EFBFBD>֪ͨ, <20><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>Сֵ
inline void SetNotifyNum(DWORD dwNum)
{
_dwNotifyNum = dwNum;
}
//<2F>߳<EFBFBD><DFB3>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>
inline bool IsThreadRunning()
{
return _hThreadHandle != NULL;
}
//<2F><><EFBFBD><EFBFBD><EFBFBD>߳̾<DFB3><CCBE><EFBFBD>
inline HANDLE GetThread()
{
return _hThreadHandle;
}
//<2F><><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ӵ<EFBFBD><D3B5>¼<EFBFBD><C2BC><EFBFBD> <20><><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч
void SetMaskEvent(DWORD dwEvent = DEFAULT_COM_MASK_EVENT)
{
_dwMaskEvent = dwEvent;
}
//<2F><><EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>
int GetInputSize()
{
COMSTAT Stat;
DWORD dwError;
return ::ClearCommError(_hCommHandle, &dwError, &Stat) == TRUE ? Stat.cbInQue : (DWORD) - 1L;
}
//----------------------------------Operations----------------------------------
//<2F>򿪴<EFBFBD><F2BFAAB4><EFBFBD> ȱʡ 9600, 8, n, 1
bool Open(DWORD dwPort)
{
return Open(dwPort, 9600);
}
//<2F>򿪴<EFBFBD><F2BFAAB4><EFBFBD> ȱʡ baud_rate, 8, n, 1
bool Open(DWORD dwPort, DWORD dwBaudRate)
{
if (dwPort < 1 || dwPort > 1024)
return false;
BindCommPort(dwPort);
if (!OpenCommPort())
return false;
if (!SetupPort())
return false;
return SetState(dwBaudRate);
}
//<2F>򿪴<EFBFBD><F2BFAAB4><EFBFBD>, ʹ<><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"9600, 8, n, 1"<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><C3B4><EFBFBD>
bool Open(DWORD dwPort, char *szSetStr)
{
if (dwPort < 1 || dwPort > 1024)
return false;
BindCommPort(dwPort);
if (!OpenCommPort())
return false;
if (!SetupPort())
return false;
return SetState(szSetStr);
}
//<2F><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD> dwBufferLength<74><68><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD> Buffer <20><><EFBFBD><EFBFBD>ʵ<EFBFBD>ʶ<EFBFBD><CAB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD> <20>ɶ<EFBFBD><C9B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
DWORD Read(LPVOID Buffer, DWORD dwBufferLength, DWORD dwWaitTime = 10)
{
if (!IsOpen())
return 0;
COMSTAT Stat;
DWORD dwError;
if (::ClearCommError(_hCommHandle, &dwError, &Stat) && dwError > 0)
{
::PurgeComm(_hCommHandle,PURGE_RXABORT | PURGE_RXCLEAR);
return 0;
}
if (!Stat.cbInQue)
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
return 0;
unsigned long uReadLength = 0;
dwBufferLength = dwBufferLength > Stat.cbInQue ? Stat.cbInQue :dwBufferLength;
if (!::ReadFile(_hCommHandle, Buffer, dwBufferLength, &uReadLength,&_ReadOverlapped))
{
if (::GetLastError() == ERROR_IO_PENDING)
{
WaitForSingleObject(_ReadOverlapped.hEvent, dwWaitTime);
// <20><><EFBFBD><EFBFBD><EFBFBD>첽I/O
if (!::GetOverlappedResult(_hCommHandle, &_ReadOverlapped,&uReadLength, false))
{
if (::GetLastError() != ERROR_IO_INCOMPLETE)
uReadLength = 0;
}
}
else
uReadLength = 0;
}
return uReadLength;
}
//<2F><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD> dwBufferLength - 1 <20><><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD> szBuffer <20><><EFBFBD><EFBFBD>ANSI C ģʽ<C4A3>ַ<EFBFBD><D6B7><EFBFBD>ָ<EFBFBD><D6B8> <20>ʺ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ַ<EFBFBD>ͨѶ
char *ReadString(char *szBuffer, DWORD dwBufferLength, DWORD dwWaitTime =20)
{
unsigned long uReadLength = Read(szBuffer, dwBufferLength - 1,dwWaitTime);
szBuffer[uReadLength] = '\0';
return szBuffer;
}
//д<><D0B4><EFBFBD><EFBFBD> <20><>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> "abcd" or "\x0\x1\x2"
DWORD Write(LPVOID Buffer, DWORD dwBufferLength)
{
if (!IsOpen())
return 0;
DWORD dwError;
if (::ClearCommError(_hCommHandle, &dwError, NULL) && dwError > 0)
::PurgeComm(_hCommHandle, PURGE_TXABORT | PURGE_TXCLEAR);
unsigned long uWriteLength = 0;
if (!::WriteFile(_hCommHandle, Buffer, dwBufferLength, &uWriteLength,&_WriteOverlapped))
if (::GetLastError() != ERROR_IO_PENDING)
uWriteLength = 0;
return uWriteLength;
}
//д<><D0B4><EFBFBD><EFBFBD> дANSI C ģʽ<C4A3>ַ<EFBFBD><D6B7><EFBFBD>ָ<EFBFBD><D6B8>
DWORD Write(const char *szBuffer)
{
assert(szBuffer);
return Write((void*)szBuffer, strlen(szBuffer));
}
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ͬ<><CDAC>Ӧ<EFBFBD><D3A6>
DWORD ReadSync(LPVOID Buffer, DWORD dwBufferLength)
{
if (!IsOpen())
return 0;
DWORD dwError;
if (::ClearCommError(_hCommHandle, &dwError, NULL) && dwError > 0)
{
::PurgeComm(_hCommHandle,PURGE_RXABORT | PURGE_RXCLEAR);
return 0;
}
DWORD uReadLength = 0;
::ReadFile(_hCommHandle, Buffer, dwBufferLength, &uReadLength, NULL);
return uReadLength;
}
//д<><D0B4><EFBFBD><EFBFBD> ͬ<><CDAC>Ӧ<EFBFBD><D3A6>
DWORD WriteSync(LPVOID Buffer, DWORD dwBufferLength)
{
if (!IsOpen())
return 0;
DWORD dwError;
if (::ClearCommError(_hCommHandle, &dwError, NULL) && dwError > 0)
::PurgeComm(_hCommHandle, PURGE_TXABORT | PURGE_TXCLEAR);
unsigned long uWriteLength = 0;
::WriteFile(_hCommHandle, Buffer, dwBufferLength, &uWriteLength, NULL);
return uWriteLength;
}
//д<><D0B4><EFBFBD><EFBFBD> szBuffer <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
DWORD Write(char *szBuffer, DWORD dwBufferLength, char *szFormat, ...)
{
if (!IsOpen())
return 0;
va_list va;
va_start(va, szFormat);
_vsnprintf(szBuffer, dwBufferLength, szFormat, va);
va_end(va);
return Write(szBuffer);
}
//д<><D0B4><EFBFBD><EFBFBD> szBuffer <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>黺<EFBFBD><E9BBBA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> С<><D0A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
DWORD Write(char *szBuffer, char *szFormat, ...)
{
if (!IsOpen())
return 0;
va_list va;
va_start(va, szFormat);
vsprintf(szBuffer, szFormat, va);
va_end(va);
return Write(szBuffer);
}
//<2F>رմ<D8B1><D5B4><EFBFBD> ͬʱҲ<CAB1>رչ<D8B1><D5B9><EFBFBD><EFBFBD>߳<EFBFBD>
virtual void Close()
{
if (IsOpen())
{
PurgeComm(_hCommHandle, PURGE_TXABORT | PURGE_TXCLEAR);
EndThread();
::CloseHandle(_hCommHandle);
_hCommHandle = INVALID_HANDLE_VALUE;
}
}
//DTR <20><>ƽ<EFBFBD><C6BD><EFBFBD><EFBFBD>
bool SetDTR(bool OnOrOff)
{
return IsOpen() ? EscapeCommFunction(_hCommHandle, OnOrOff ? SETDTR :CLRDTR): false;
}
//RTS <20><>ƽ<EFBFBD><C6BD><EFBFBD><EFBFBD>
bool SetRTS(bool OnOrOff)
{
return IsOpen() ? EscapeCommFunction(_hCommHandle, OnOrOff ? SETRTS :CLRRTS): false;
}
//
bool SetBreak(bool OnOrOff)
{
return IsOpen() ? EscapeCommFunction(_hCommHandle, OnOrOff ? SETBREAK: CLRBREAK): false;
}
//<2F><><EFBFBD><EFBFBD><EFBFBD>߳̿<DFB3><CCBF><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>
bool BeginThread()
{
if (!IsThreadRunning())
{
_fRunFlag = true;
_hThreadHandle = NULL;
DWORD id;
_hThreadHandle = ::CreateThread(NULL, 0, CommThreadProc, this, 0,&id);
return (_hThreadHandle != NULL);
}
return false;
}
//<2F><>ͣ<EFBFBD><CDA3><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>
inline bool SuspendThread()
{
return IsThreadRunning() ? ::SuspendThread(_hThreadHandle) !=0xFFFFFFFF: false;
}
//<2F>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>
inline bool ResumeThread()
{
return IsThreadRunning() ? ::ResumeThread(_hThreadHandle) !=0xFFFFFFFF: false;
}
//<2F><>ֹ<EFBFBD>߳<EFBFBD>
bool EndThread(DWORD dwWaitTime = 100)
{
if (IsThreadRunning())
{
_fRunFlag = false;
::SetCommMask(_hCommHandle, 0);
::SetEvent(_WaitOverlapped.hEvent);
if (::WaitForSingleObject(_hThreadHandle, dwWaitTime) !=WAIT_OBJECT_0)
if (!::TerminateThread(_hThreadHandle, 0))
return false;
::CloseHandle(_hThreadHandle);
::ResetEvent(_WaitOverlapped.hEvent);
_hThreadHandle = NULL;
return true;
}
return false;
}
protected:
volatile DWORD _dwPort; //<2F><><EFBFBD>ں<EFBFBD>
volatile HANDLE _hCommHandle; //<2F><><EFBFBD>ھ<EFBFBD><DABE><EFBFBD>
char _szCommStr[20]; //<2F><><EFBFBD><EFBFBD>COM1<4D><31><EFBFBD>Ƶ<EFBFBD><C6B5>ַ<EFBFBD><D6B7><EFBFBD>
DCB _DCB; //<2F><><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD>ֹͣλ<D6B9><CEBB><EFBFBD><EFBFBD>
COMMTIMEOUTS _CO; //<2F><>ʱ<EFBFBD>ṹ
DWORD _dwIOMode; // 0 ͬ<><CDAC> Ĭ<><C4AC> FILE_FLAG_OVERLAPPED<45>ص<EFBFBD>I/O<>첽
OVERLAPPED _ReadOverlapped, _WriteOverlapped; // <20>ص<EFBFBD>I/O
volatile HANDLE _hThreadHandle; //<2F><><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>
volatile HWND _hNotifyWnd; // ֪ͨ<CDA8><D6AA><EFBFBD><EFBFBD>
volatile DWORD _dwNotifyNum; //<2F><><EFBFBD>ܶ<EFBFBD><DCB6><EFBFBD><EFBFBD>ֽ<EFBFBD>(>=_dwNotifyNum)<29><><EFBFBD><EFBFBD>֪ͨ<CDA8><D6AA>Ϣ
volatile DWORD _dwMaskEvent; //<2F><><EFBFBD>ӵ<EFBFBD><D3B5>¼<EFBFBD>
volatile bool _fRunFlag; //<2F>߳<EFBFBD><DFB3><EFBFBD><EFBFBD><EFBFBD>ѭ<EFBFBD><D1AD><EFBFBD><EFBFBD>־
bool _fAutoBeginThread; //Open() <20>Զ<EFBFBD> BeginThread();
OVERLAPPED _WaitOverlapped; //WaitCommEvent use
//<2F><>ʼ<EFBFBD><CABC>
void Init()
{
memset(_szCommStr, 0, 20);
memset(&_DCB, 0, sizeof(_DCB));
_DCB.DCBlength = sizeof(_DCB);
_hCommHandle = INVALID_HANDLE_VALUE;
memset(&_ReadOverlapped, 0, sizeof(_ReadOverlapped));
memset(&_WriteOverlapped, 0, sizeof(_WriteOverlapped));
_ReadOverlapped.hEvent = ::CreateEvent(NULL, true, false, NULL);
assert(_ReadOverlapped.hEvent != INVALID_HANDLE_VALUE);
_WriteOverlapped.hEvent = ::CreateEvent(NULL, true, false, NULL);
assert(_WriteOverlapped.hEvent != INVALID_HANDLE_VALUE);
_hNotifyWnd = NULL;
_dwNotifyNum = 0;
_dwMaskEvent = DEFAULT_COM_MASK_EVENT;
_hThreadHandle = NULL;
memset(&_WaitOverlapped, 0, sizeof(_WaitOverlapped));
_WaitOverlapped.hEvent = ::CreateEvent(NULL, true, false, NULL);
assert(_WaitOverlapped.hEvent != INVALID_HANDLE_VALUE);
}
//<2F><><EFBFBD><EFBFBD>
void UnInit()
{
if (_ReadOverlapped.hEvent != INVALID_HANDLE_VALUE)
CloseHandle(_ReadOverlapped.hEvent);
if (_WriteOverlapped.hEvent != INVALID_HANDLE_VALUE)
CloseHandle(_WriteOverlapped.hEvent);
if (_WaitOverlapped.hEvent != INVALID_HANDLE_VALUE)
CloseHandle(_WaitOverlapped.hEvent);
}
//<2F>󶨴<EFBFBD><F3B6A8B4><EFBFBD>
void BindCommPort(DWORD dwPort)
{
assert(dwPort >= 1 && dwPort <= 1024);
char p[5];
_dwPort = dwPort;
strcpy(_szCommStr, "\\\\.\\COM");
ltoa(_dwPort, p, 10);
strcat(_szCommStr, p);
}
//<2F>򿪴<EFBFBD><F2BFAAB4><EFBFBD>
virtual bool OpenCommPort()
{
if (IsOpen())
Close();
_hCommHandle = ::CreateFile(_szCommStr, GENERIC_READ | GENERIC_WRITE, 0, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | _dwIOMode,NULL);
if (_fAutoBeginThread)
{
if (IsOpen() && BeginThread())
return true;
else
{
Close(); //<2F><><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>ʧ<EFBFBD><CAA7>
return false;
}
}
return IsOpen();
}
//<2F><><EFBFBD>ô<EFBFBD><C3B4><EFBFBD>
virtual bool SetupPort()
{
if (!IsOpen())
return false;
if (!::SetupComm(_hCommHandle, 4096, 4096))
return false;
if (!::GetCommTimeouts(_hCommHandle, &_CO))
return false;
_CO.ReadIntervalTimeout = 0;
_CO.ReadTotalTimeoutMultiplier = 1;
_CO.ReadTotalTimeoutConstant = 1000;
_CO.WriteTotalTimeoutMultiplier = 1;
_CO.WriteTotalTimeoutConstant = 1000;
if (!::SetCommTimeouts(_hCommHandle, &_CO))
return false;
if (!::PurgeComm(_hCommHandle, PURGE_TXABORT | PURGE_RXABORT |PURGE_TXCLEAR | PURGE_RXCLEAR))
return false;
return true;
}
//---------------------------------------threads callback-----------------------------------
//<2F>߳<EFBFBD><DFB3>յ<EFBFBD><D5B5><EFBFBD>Ϣ<EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD>, <20>細<EFBFBD>ھ<EFBFBD><DABE><EFBFBD><EFBFBD><EFBFBD>Ч, <20>ͳ<EFBFBD><CDB3><EFBFBD>Ϣ, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD><DAB1>ţ<EFBFBD> <20><>Ϊ<EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>չ
virtual void OnReceive() //EV_RXCHAR
{
if (::IsWindow(_hNotifyWnd))
::PostMessage(_hNotifyWnd, ON_COM_RECEIVE, WPARAM(_dwPort), LPARAM (0));
}
virtual void OnDSR()
{
if (::IsWindow(_hNotifyWnd))
{
DWORD Status;
if (GetCommModemStatus(_hCommHandle, &Status))
::PostMessage(_hNotifyWnd, ON_COM_DSR, WPARAM(_dwPort),LPARAM((Status &MS_DSR_ON) ? 1 : 0));
}
}
virtual void OnCTS()
{
if (::IsWindow(_hNotifyWnd))
{
DWORD Status;
if (GetCommModemStatus(_hCommHandle, &Status))
::PostMessage(_hNotifyWnd, ON_COM_CTS, WPARAM(_dwPort), LPARAM( (Status &MS_CTS_ON) ? 1 : 0));
}
}
virtual void OnBreak()
{
if (::IsWindow(_hNotifyWnd))
{
::PostMessage(_hNotifyWnd, ON_COM_BREAK, WPARAM(_dwPort), LPARAM(0));
}
}
virtual void OnTXEmpty()
{
if (::IsWindow(_hNotifyWnd))
::PostMessage(_hNotifyWnd, ON_COM_TXEMPTY, WPARAM(_dwPort), LPARAM (0));
}
virtual void OnError()
{
DWORD dwError;
::ClearCommError(_hCommHandle, &dwError, NULL);
if (::IsWindow(_hNotifyWnd))
::PostMessage(_hNotifyWnd, ON_COM_ERROR, WPARAM(_dwPort), LPARAM (dwError));
}
virtual void OnRing()
{
if (::IsWindow(_hNotifyWnd))
::PostMessage(_hNotifyWnd, ON_COM_RING, WPARAM(_dwPort), LPARAM(0));
}
virtual void OnRLSD()
{
if (::IsWindow(_hNotifyWnd))
::PostMessage(_hNotifyWnd, ON_COM_RLSD, WPARAM(_dwPort), LPARAM(0));
}
virtual DWORD ThreadFunc()
{
if (!::SetCommMask(_hCommHandle, _dwMaskEvent))
{
char szBuffer[256];
_snprintf(szBuffer, 255,
"%s(%d) : COM%d Call WINAPI SetCommMask(%x, %x) Fail, thread work invalid! GetLastError() = %d;", __FILE__, __LINE__, _dwPort, _hCommHandle, _dwMaskEvent, GetLastError());
MessageBox(NULL, szBuffer, "Class cnComm", MB_OK);
return 1;
}
COMSTAT Stat;
DWORD dwError;
for (DWORD dwLength, dwMask = 0; _fRunFlag && IsOpen(); dwMask = 0)
{
if (!::WaitCommEvent(_hCommHandle, &dwMask, &_WaitOverlapped))
{
if (::GetLastError() == ERROR_IO_PENDING)
// asynchronous
::GetOverlappedResult(_hCommHandle, &_WaitOverlapped,&dwLength, TRUE);
else
continue;
}
if (dwMask == 0)
continue;
switch (dwMask)
{
case EV_RXCHAR:
::ClearCommError(_hCommHandle, &dwError, &Stat);
if (Stat.cbInQue >= _dwNotifyNum)
OnReceive();
break;
case EV_TXEMPTY:
OnTXEmpty();
break;
case EV_CTS:
OnCTS();
break;
case EV_DSR:
OnDSR();
break;
case EV_RING:
OnRing();
break;
case EV_RLSD:
OnRLSD();
break;
case EV_BREAK:
OnBreak();
break;
case EV_ERR:
OnError();
break;
} //case
} //for
return 0;
}
private:
//the function protected
cnComm(const cnComm &);
cnComm &operator = (const cnComm &);
//base function for thread
static DWORD WINAPI CommThreadProc(LPVOID lpPara)
{
return ((cnComm*)lpPara)->ThreadFunc();
}
};
#endif //_CN_COMM_H_