nim_duilib/examples/proto_debuger/serial_port.cpp

#include "serial_port.h"



#include <stdio.h>
#include <string.h>

#include <WinSock2.h>
#include <windows.h>
#include<iostream>
using namespace std;

SerialPort::SerialPort()
{

}

SerialPort::~SerialPort()
{

}

bool SerialPort::open(const char* portname,
	int baudrate,
	char parity,
	char databit,
	char stopbit,
	char synchronizeflag)
{
	this->synchronizeflag = synchronizeflag;
	HANDLE hCom = NULL;
	if (this->synchronizeflag)
	{
		//ͬ<><CDAC><EFBFBD><EFBFBD>ʽ
		hCom = CreateFileA(portname, //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
			GENERIC_READ | GENERIC_WRITE, //֧<>ֶ<EFBFBD>д
			0, //<2F><>ռ<EFBFBD><D5BC>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>֧<EFBFBD>ֹ<EFBFBD><D6B9><EFBFBD>
			NULL,//<2F><>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD>ָ<EFBFBD>룬Ĭ<EBA3AC><C4AC>ֵΪNULL
			OPEN_EXISTING, //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĴ<D0B5><C4B4><EFBFBD><EFBFBD>ļ<EFBFBD>
			0, //0<><30>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD>FILE_FLAG_OVERLAPPED<45><44><EFBFBD>첽<EFBFBD><ECB2BD>ʽ
			NULL);//<2F><><EFBFBD>ڸ<EFBFBD><DAB8><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD><C4AC>ֵΪNULL<4C><4C><EFBFBD>Դ<EFBFBD><D4B4>ڶ<EFBFBD><DAB6>Ըò<D4B8><C3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ΪNULL
	}
	else
	{
		//<2F>첽<EFBFBD><ECB2BD>ʽ
		hCom = CreateFileA(portname, //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
			GENERIC_READ | GENERIC_WRITE, //֧<>ֶ<EFBFBD>д
			0, //<2F><>ռ<EFBFBD><D5BC>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>֧<EFBFBD>ֹ<EFBFBD><D6B9><EFBFBD>
			NULL,//<2F><>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD>ָ<EFBFBD>룬Ĭ<EBA3AC><C4AC>ֵΪNULL
			OPEN_EXISTING, //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĴ<D0B5><C4B4><EFBFBD><EFBFBD>ļ<EFBFBD>
			FILE_FLAG_OVERLAPPED, //0<><30>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD>FILE_FLAG_OVERLAPPED<45><44><EFBFBD>첽<EFBFBD><ECB2BD>ʽ
			NULL);//<2F><><EFBFBD>ڸ<EFBFBD><DAB8><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD><C4AC>ֵΪNULL<4C><4C><EFBFBD>Դ<EFBFBD><D4B4>ڶ<EFBFBD><DAB6>Ըò<D4B8><C3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ΪNULL
	}

	if (hCom == (HANDLE)-1)
	{
		return false;
	}

	//<2F><><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С 
	if (!SetupComm(hCom, 1024, 1024))
	{
		return false;
	}

	// <20><><EFBFBD>ò<EFBFBD><C3B2><EFBFBD> 
	DCB p;
	memset(&p, 0, sizeof(p));
	p.DCBlength = sizeof(p);
	p.BaudRate = baudrate; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	p.ByteSize = databit; // <20><><EFBFBD><EFBFBD>λ

	switch (parity) //У<><D0A3>λ
	{
	case 0:
		p.Parity = NOPARITY; //<2F><>У<EFBFBD><D0A3>
		break;
	case 1:
		p.Parity = ODDPARITY; //<2F><>У<EFBFBD><D0A3>
		break;
	case 2:
		p.Parity = EVENPARITY; //żУ<C5BC><D0A3>
		break;
	case 3:
		p.Parity = MARKPARITY; //<2F><><EFBFBD><EFBFBD>У<EFBFBD><D0A3>
		break;
	}

	switch (stopbit) //ֹͣλ
	{
	case 1:
		p.StopBits = ONESTOPBIT; //1λֹͣλ
		break;
	case 2:
		p.StopBits = TWOSTOPBITS; //2λֹͣλ
		break;
	case 3:
		p.StopBits = ONE5STOPBITS; //1.5λֹͣλ
		break;
	}

	if (!SetCommState(hCom, &p))
	{
		// <20><><EFBFBD>ò<EFBFBD><C3B2><EFBFBD>ʧ<EFBFBD><CAA7>
		return false;
	}

	//<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>,<2C><>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	//<2F>ܳ<EFBFBD>ʱ<EFBFBD><CAB1>ʱ<EFBFBD><CAB1>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>䳣<EFBFBD><E4B3A3>
	COMMTIMEOUTS TimeOuts;
	TimeOuts.ReadIntervalTimeout = 1000; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ
	TimeOuts.ReadTotalTimeoutMultiplier = 500; //<2F><>ʱ<EFBFBD><CAB1>ϵ<EFBFBD><CFB5>
	TimeOuts.ReadTotalTimeoutConstant = 5000; //<2F><>ʱ<EFBFBD>䳣<EFBFBD><E4B3A3>
	TimeOuts.WriteTotalTimeoutMultiplier = 500; // дʱ<D0B4><CAB1>ϵ<EFBFBD><CFB5>
	TimeOuts.WriteTotalTimeoutConstant = 2000; //дʱ<D0B4>䳣<EFBFBD><E4B3A3>
	SetCommTimeouts(hCom, &TimeOuts);

	PurgeComm(hCom, PURGE_TXCLEAR | PURGE_RXCLEAR);//<2F><><EFBFBD>մ<EFBFBD><D5B4>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD><EFBFBD>

	memcpy(pHandle, &hCom, sizeof(hCom));// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

	return true;
}

void SerialPort::close()
{
	HANDLE hCom = *(HANDLE*)pHandle;
	CloseHandle(hCom);
}

int SerialPort::send(string dat)
{
	HANDLE hCom = *(HANDLE*)pHandle;

	if (this->synchronizeflag)
	{
		// ͬ<><CDAC><EFBFBD><EFBFBD>ʽ
		DWORD dwBytesWrite = dat.length(); //<2F>ɹ<EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>
		BOOL bWriteStat = WriteFile(hCom, //<2F><><EFBFBD>ھ<EFBFBD><DABE><EFBFBD>
			(char*)dat.c_str(), //<2F><><EFBFBD><EFBFBD><EFBFBD>׵<EFBFBD>ַ
			dwBytesWrite, //Ҫ<><D2AA><EFBFBD>͵<EFBFBD><CDB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>
			&dwBytesWrite, //DWORD*<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>շ<EFBFBD><D5B7>سɹ<D8B3><C9B9><EFBFBD><EFBFBD>͵<EFBFBD><CDB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>
			NULL); //NULLΪͬ<CEAA><CDAC><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>OVERLAPPED*Ϊ<>첽<EFBFBD><ECB2BD><EFBFBD><EFBFBD>
		if (!bWriteStat)
		{
			return 0;
		}
		return dwBytesWrite;
	}
	else
	{
		//<2F>첽<EFBFBD><ECB2BD>ʽ
		DWORD dwBytesWrite = dat.length(); //<2F>ɹ<EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>
		DWORD dwErrorFlags; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־
		COMSTAT comStat; //ͨѶ״̬
		OVERLAPPED m_osWrite; //<2F>첽<EFBFBD><ECB2BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṹ<EFBFBD><E1B9B9>

		//<2F><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>OVERLAPPED<45><44><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD>ϵͳҪ<CDB3><D2AA><EFBFBD><EFBFBD>ô<EFBFBD><C3B4>
		memset(&m_osWrite, 0, sizeof(m_osWrite));
		m_osWrite.hEvent = CreateEvent(NULL, TRUE, FALSE, L"WriteEvent");

		ClearCommError(hCom, &dwErrorFlags, &comStat); //<2F><><EFBFBD><EFBFBD>ͨѶ<CDA8><D1B6><EFBFBD>󣬻<EFBFBD><F3A3ACBB><EFBFBD><EFBFBD>豸<EFBFBD><E8B1B8>ǰ״̬
		BOOL bWriteStat = WriteFile(hCom, //<2F><><EFBFBD>ھ<EFBFBD><DABE><EFBFBD>
			(char*)dat.c_str(), //<2F><><EFBFBD><EFBFBD><EFBFBD>׵<EFBFBD>ַ
			dwBytesWrite, //Ҫ<><D2AA><EFBFBD>͵<EFBFBD><CDB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>
			&dwBytesWrite, //DWORD*<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>շ<EFBFBD><D5B7>سɹ<D8B3><C9B9><EFBFBD><EFBFBD>͵<EFBFBD><CDB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>
			&m_osWrite); //NULLΪͬ<CEAA><CDAC><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>OVERLAPPED*Ϊ<>첽<EFBFBD><ECB2BD><EFBFBD><EFBFBD>
		if (!bWriteStat)
		{
			if (GetLastError() == ERROR_IO_PENDING) //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>
			{
				WaitForSingleObject(m_osWrite.hEvent, 1000); //<2F>ȴ<EFBFBD>д<EFBFBD><D0B4><EFBFBD>¼<EFBFBD>1<EFBFBD><31><EFBFBD><EFBFBD>
			}
			else
			{
				ClearCommError(hCom, &dwErrorFlags, &comStat); //<2F><><EFBFBD><EFBFBD>ͨѶ<CDA8><D1B6><EFBFBD><EFBFBD>
				CloseHandle(m_osWrite.hEvent); //<2F>رղ<D8B1><D5B2>ͷ<EFBFBD>hEvent<6E>ڴ<EFBFBD>
				return 0;
			}
		}
		return dwBytesWrite;
	}
}

string SerialPort::receive()
{
	HANDLE hCom = *(HANDLE*)pHandle;
	string rec_str = "";
	char buf[1024];
	if (this->synchronizeflag)
	{
		//ͬ<><CDAC><EFBFBD><EFBFBD>ʽ
		DWORD wCount = 1024; //<2F>ɹ<EFBFBD><C9B9><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>
		BOOL bReadStat = ReadFile(hCom, //<2F><><EFBFBD>ھ<EFBFBD><DABE><EFBFBD>
			buf, //<2F><><EFBFBD><EFBFBD><EFBFBD>׵<EFBFBD>ַ
			wCount, //Ҫ<><D2AA>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>
			&wCount, //DWORD*,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>շ<EFBFBD><D5B7>سɹ<D8B3><C9B9><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>
			NULL); //NULLΪͬ<CEAA><CDAC><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>OVERLAPPED*Ϊ<>첽<EFBFBD><ECB2BD><EFBFBD><EFBFBD>
		for (int i = 0; i < 1024; i++)
		{
			if (buf[i] != -52)
				rec_str += buf[i];
			else
				break;
		}
		return rec_str;
	}
	else
	{
		//<2F>첽<EFBFBD><ECB2BD>ʽ
		DWORD wCount = 1024; //<2F>ɹ<EFBFBD><C9B9><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>
		DWORD dwErrorFlags; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־
		COMSTAT comStat; //ͨѶ״̬
		OVERLAPPED m_osRead; //<2F>첽<EFBFBD><ECB2BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṹ<EFBFBD><E1B9B9>

		//<2F><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>OVERLAPPED<45><44><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD>ϵͳҪ<CDB3><D2AA><EFBFBD><EFBFBD>ô<EFBFBD><C3B4>
		memset(&m_osRead, 0, sizeof(m_osRead));
		m_osRead.hEvent = CreateEvent(NULL, TRUE, FALSE, L"ReadEvent");

		ClearCommError(hCom, &dwErrorFlags, &comStat); //<2F><><EFBFBD><EFBFBD>ͨѶ<CDA8><D1B6><EFBFBD>󣬻<EFBFBD><F3A3ACBB><EFBFBD><EFBFBD>豸<EFBFBD><E8B1B8>ǰ״̬
		if (!comStat.cbInQue)return 0; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뻺<EFBFBD><EBBBBA><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>Ϊ0<CEAA><30><EFBFBD>򷵻<EFBFBD>false
		//std::cout << comStat.cbInQue << std::endl;
		BOOL bReadStat = ReadFile(hCom, //<2F><><EFBFBD>ھ<EFBFBD><DABE><EFBFBD>
			buf, //<2F><><EFBFBD><EFBFBD><EFBFBD>׵<EFBFBD>ַ
			wCount, //Ҫ<><D2AA>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>
			&wCount, //DWORD*,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>շ<EFBFBD><D5B7>سɹ<D8B3><C9B9><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>
			&m_osRead); //NULLΪͬ<CEAA><CDAC><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>OVERLAPPED*Ϊ<>첽<EFBFBD><ECB2BD><EFBFBD><EFBFBD>
		if (!bReadStat)
		{
			if (GetLastError() == ERROR_IO_PENDING) //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڶ<EFBFBD>ȡ<EFBFBD><C8A1>
			{
				//GetOverlappedResult<6C><74><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ΪTRUE
				//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һֱ<D2BB>ȴ<EFBFBD><C8B4><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɻ<EFBFBD><C9BB><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
				GetOverlappedResult(hCom, &m_osRead, &wCount, TRUE);
			}
			else
			{
				ClearCommError(hCom, &dwErrorFlags, &comStat); //<2F><><EFBFBD><EFBFBD>ͨѶ<CDA8><D1B6><EFBFBD><EFBFBD>
				CloseHandle(m_osRead.hEvent); //<2F>رղ<D8B1><D5B2>ͷ<EFBFBD>hEvent<6E><74><EFBFBD>ڴ<EFBFBD>
				return 0;
			}
		}
		for (int i = 0; i < 1024; i++)
		{
			if (buf[i] != -52)
				rec_str += buf[i];
			else
				break;
		}
		return rec_str;
	}
}