接前一篇数据的接收与处理,源码篇
2007-09-12 21:57
375 查看
1. 建一个数据处理线程类.CDataThread
#pragma once
class CDataThread
...{
public:
CDataThread(void);
~CDataThread(void);
public:
void InitData(CWnd *pOwner ,int iDataLen ) ;
BOOL StartMonitoring() ;
BOOL RestartMonitoring() ;
BOOL StopMonitoring() ;
protected:
static UINT DataThread( LPVOID pParam) ;
BOOL GetData(int *pData , int iLen ) ;//取出数据
CWinThread* m_Thread ;
HANDLE m_hStopEvent ;
CWnd *m_pOwner ;
int *m_pData ;
int m_iDataLen ;
int m_iCurReadPos ;
int m_iCurWritePos;
public:
BOOL KillMonitoring(void) ;
public:
void AddData( int iData ) ;
};
#include "StdAfx.h"
#include ".datathread.h"
CDataThread::CDataThread(void)
...{
m_hStopEvent = NULL ;
m_iCurReadPos = 0 ;
m_iCurWritePos= 0 ;
m_pData = NULL ;
m_Thread = NULL ;
m_pOwner = NULL ;
}
CDataThread::~CDataThread(void)
...{
if ( m_pData != NULL )
...{
delete [] m_pData ;
m_pData = NULL ;
}
}
void CDataThread::InitData(CWnd * pOwner , int iDataLen )
...{
if ( m_hStopEvent != NULL )
...{
ResetEvent(m_hStopEvent ) ;
}
m_hStopEvent = CreateEvent(NULL , TRUE , FALSE , NULL ) ;
m_pOwner = pOwner ;
m_iDataLen = iDataLen ;
if ( m_pData != NULL )
...{
delete [] m_pData ;
m_pData = NULL ;
}
m_pData = new int[iDataLen] ;
}
UINT CDataThread::DataThread(LPVOID pParam )
...{
CDataThread *pThread = (CDataThread*)pParam ;
DWORD Event = 0xffffffff ;
int data[10] ;
memset(&data , 0 , sizeof(int) *10 ) ;
BOOL bRunning = TRUE ;
while ( bRunning )
...{
Event = WaitForSingleObject(pThread->m_hStopEvent , 1 ) ;
switch(Event)
...{
case WAIT_OBJECT_0:
bRunning = FALSE ;
break ;
case WAIT_TIMEOUT:
//写读的数据
if( pThread->GetData(data , 10 ) == TRUE )
...{
TRACE("得到10个数据 ") ;
}
break ;
}
}
return 0 ;
}
BOOL CDataThread::RestartMonitoring()
...{
TRACE("Thread resumed " ) ;
m_Thread->SuspendThread() ;
return TRUE ;
}
BOOL CDataThread::StartMonitoring()
...{
if ( ! ( m_Thread = AfxBeginThread(DataThread , this)))
return FALSE ;
TRACE("Thread started ") ;
return TRUE ;
}
BOOL CDataThread::KillMonitoring()
...{
SetEvent(m_hStopEvent) ;
return 0 ;
}
void CDataThread::AddData(int iData )
...{
if ( m_pData == NULL ) return ;
if ( m_iCurWritePos < m_iDataLen )
...{
m_pData[m_iCurWritePos] = iData ;
m_iCurWritePos++ ;
if ( m_iCurWritePos == m_iDataLen )
...{
m_iCurWritePos = 0 ;
}
}
}
BOOL CDataThread::GetData(int *pGetData , int iLen )
...{
if ( m_iCurReadPos > m_iCurWritePos )
...{
m_iCurReadPos = m_iCurWritePos ;
}
if ( m_iCurWritePos - m_iCurReadPos < iLen ) return FALSE ;
memcpy(pGetData , &m_pData[m_iCurReadPos] , sizeof(int) * iLen ) ;
m_iCurReadPos += iLen ;
if ( m_iCurReadPos >= m_iDataLen )
...{
m_iCurReadPos = 0 ;
}
return TRUE ;
}
2.建立一个对话框程序进行测试,用定时器模拟加数据.1毫秒加一个点,比如程序中加入一个数10,达到10个数取一次点,就像从串口取十个数据,然后取出绘制一样.
// TestMultiThreadDlg.h : 头文件
//
#pragma once
#include "DataThread.h"
// CTestMultiThreadDlg 对话框
class CTestMultiThreadDlg : public CDialog
...{
// 构造
public:
CTestMultiThreadDlg(CWnd* pParent = NULL); // 标准构造函数
// 对话框数据
enum ...{ IDD = IDD_TESTMULTITHREAD_DIALOG };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
// 实现
protected:
HICON m_hIcon;
// 生成的消息映射函数
virtual BOOL OnInitDialog();
afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
afx_msg void OnPaint();
afx_msg HCURSOR OnQueryDragIcon();
DECLARE_MESSAGE_MAP()
public:
CDataThread DataThread ;
virtual BOOL DestroyWindow();
afx_msg void OnBnClickedButton1();
afx_msg void OnTimer(UINT nIDEvent);
};
// TestMultiThreadDlg.cpp : 实现文件
//
#include "stdafx.h"
#include "TestMultiThread.h"
#include "TestMultiThreadDlg.h"
#include ". estmultithreaddlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// 用于应用程序“关于”菜单项的 CAboutDlg 对话框
class CAboutDlg : public CDialog
...{
public:
CAboutDlg();
// 对话框数据
enum ...{ IDD = IDD_ABOUTBOX };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
// 实现
protected:
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
...{
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
...{
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()
// CTestMultiThreadDlg 对话框
CTestMultiThreadDlg::CTestMultiThreadDlg(CWnd* pParent /**//*=NULL*/)
: CDialog(CTestMultiThreadDlg::IDD, pParent)
...{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CTestMultiThreadDlg::DoDataExchange(CDataExchange* pDX)
...{
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CTestMultiThreadDlg, CDialog)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
//}}AFX_MSG_MAP
ON_BN_CLICKED(IDC_BUTTON1, OnBnClickedButton1)
ON_WM_TIMER()
END_MESSAGE_MAP()
// CTestMultiThreadDlg 消息处理程序
BOOL CTestMultiThreadDlg::OnInitDialog()
...{
CDialog::OnInitDialog();
// 将“关于...”菜单项添加到系统菜单中。
// IDM_ABOUTBOX 必须在系统命令范围内。
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
...{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
...{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
// 执行此操作
SetIcon(m_hIcon, TRUE); // 设置大图标
SetIcon(m_hIcon, FALSE); // 设置小图标
// TODO: 在此添加额外的初始化代码
return TRUE; // 除非设置了控件的焦点，否则返回 TRUE
}
void CTestMultiThreadDlg::OnSysCommand(UINT nID, LPARAM lParam)
...{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
...{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
...{
CDialog::OnSysCommand(nID, lParam);
}
}
// 如果向对话框添加最小化按钮，则需要下面的代码
// 来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
// 这将由框架自动完成。
void CTestMultiThreadDlg::OnPaint()
...{
if (IsIconic())
...{
CPaintDC dc(this); // 用于绘制的设备上下文
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
// 使图标在工作矩形中居中
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// 绘制图标
dc.DrawIcon(x, y, m_hIcon);
}
else
...{
CDialog::OnPaint();
}
}
//当用户拖动最小化窗口时系统调用此函数取得光标显示。
HCURSOR CTestMultiThreadDlg::OnQueryDragIcon()
...{
return static_cast<HCURSOR>(m_hIcon);
}
BOOL CTestMultiThreadDlg::DestroyWindow()
...{
// TODO: 在此添加专用代码和/或调用基类
KillTimer(1) ;
DataThread.KillMonitoring() ;
return CDialog::DestroyWindow();
}
void CTestMultiThreadDlg::OnBnClickedButton1()
...{
// TODO: 在此添加控件通知处理程序代码
DataThread.InitData(this, 10000) ;
DataThread.StartMonitoring() ;
SetTimer(1,10 , NULL ) ;
}
void CTestMultiThreadDlg::OnTimer(UINT nIDEvent)
...{
// TODO: 在此添加消息处理程序代码和/或调用默认值
DataThread.AddData(10) ;
CDialog::OnTimer(nIDEvent);
}
#pragma once
class CDataThread
...{
public:
CDataThread(void);
~CDataThread(void);
public:
void InitData(CWnd *pOwner ,int iDataLen ) ;
BOOL StartMonitoring() ;
BOOL RestartMonitoring() ;
BOOL StopMonitoring() ;
protected:
static UINT DataThread( LPVOID pParam) ;
BOOL GetData(int *pData , int iLen ) ;//取出数据
CWinThread* m_Thread ;
HANDLE m_hStopEvent ;
CWnd *m_pOwner ;
int *m_pData ;
int m_iDataLen ;
int m_iCurReadPos ;
int m_iCurWritePos;
public:
BOOL KillMonitoring(void) ;
public:
void AddData( int iData ) ;
};
#include "StdAfx.h"
#include ".datathread.h"
CDataThread::CDataThread(void)
...{
m_hStopEvent = NULL ;
m_iCurReadPos = 0 ;
m_iCurWritePos= 0 ;
m_pData = NULL ;
m_Thread = NULL ;
m_pOwner = NULL ;
}
CDataThread::~CDataThread(void)
...{
if ( m_pData != NULL )
...{
delete [] m_pData ;
m_pData = NULL ;
}
}
void CDataThread::InitData(CWnd * pOwner , int iDataLen )
...{
if ( m_hStopEvent != NULL )
...{
ResetEvent(m_hStopEvent ) ;
}
m_hStopEvent = CreateEvent(NULL , TRUE , FALSE , NULL ) ;
m_pOwner = pOwner ;
m_iDataLen = iDataLen ;
if ( m_pData != NULL )
...{
delete [] m_pData ;
m_pData = NULL ;
}
m_pData = new int[iDataLen] ;
}
UINT CDataThread::DataThread(LPVOID pParam )
...{
CDataThread *pThread = (CDataThread*)pParam ;
DWORD Event = 0xffffffff ;
int data[10] ;
memset(&data , 0 , sizeof(int) *10 ) ;
BOOL bRunning = TRUE ;
while ( bRunning )
...{
Event = WaitForSingleObject(pThread->m_hStopEvent , 1 ) ;
switch(Event)
...{
case WAIT_OBJECT_0:
bRunning = FALSE ;
break ;
case WAIT_TIMEOUT:
//写读的数据
if( pThread->GetData(data , 10 ) == TRUE )
...{
TRACE("得到10个数据 ") ;
}
break ;
}
}
return 0 ;
}
BOOL CDataThread::RestartMonitoring()
...{
TRACE("Thread resumed " ) ;
m_Thread->SuspendThread() ;
return TRUE ;
}
BOOL CDataThread::StartMonitoring()
...{
if ( ! ( m_Thread = AfxBeginThread(DataThread , this)))
return FALSE ;
TRACE("Thread started ") ;
return TRUE ;
}
BOOL CDataThread::KillMonitoring()
...{
SetEvent(m_hStopEvent) ;
return 0 ;
}
void CDataThread::AddData(int iData )
...{
if ( m_pData == NULL ) return ;
if ( m_iCurWritePos < m_iDataLen )
...{
m_pData[m_iCurWritePos] = iData ;
m_iCurWritePos++ ;
if ( m_iCurWritePos == m_iDataLen )
...{
m_iCurWritePos = 0 ;
}
}
}
BOOL CDataThread::GetData(int *pGetData , int iLen )
...{
if ( m_iCurReadPos > m_iCurWritePos )
...{
m_iCurReadPos = m_iCurWritePos ;
}
if ( m_iCurWritePos - m_iCurReadPos < iLen ) return FALSE ;
memcpy(pGetData , &m_pData[m_iCurReadPos] , sizeof(int) * iLen ) ;
m_iCurReadPos += iLen ;
if ( m_iCurReadPos >= m_iDataLen )
...{
m_iCurReadPos = 0 ;
}
return TRUE ;
}
2.建立一个对话框程序进行测试,用定时器模拟加数据.1毫秒加一个点,比如程序中加入一个数10,达到10个数取一次点,就像从串口取十个数据,然后取出绘制一样.
// TestMultiThreadDlg.h : 头文件
//
#pragma once
#include "DataThread.h"
// CTestMultiThreadDlg 对话框
class CTestMultiThreadDlg : public CDialog
...{
// 构造
public:
CTestMultiThreadDlg(CWnd* pParent = NULL); // 标准构造函数
// 对话框数据
enum ...{ IDD = IDD_TESTMULTITHREAD_DIALOG };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
// 实现
protected:
HICON m_hIcon;
// 生成的消息映射函数
virtual BOOL OnInitDialog();
afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
afx_msg void OnPaint();
afx_msg HCURSOR OnQueryDragIcon();
DECLARE_MESSAGE_MAP()
public:
CDataThread DataThread ;
virtual BOOL DestroyWindow();
afx_msg void OnBnClickedButton1();
afx_msg void OnTimer(UINT nIDEvent);
};
// TestMultiThreadDlg.cpp : 实现文件
//
#include "stdafx.h"
#include "TestMultiThread.h"
#include "TestMultiThreadDlg.h"
#include ". estmultithreaddlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// 用于应用程序“关于”菜单项的 CAboutDlg 对话框
class CAboutDlg : public CDialog
...{
public:
CAboutDlg();
// 对话框数据
enum ...{ IDD = IDD_ABOUTBOX };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
// 实现
protected:
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
...{
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
...{
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()
// CTestMultiThreadDlg 对话框
CTestMultiThreadDlg::CTestMultiThreadDlg(CWnd* pParent /**//*=NULL*/)
: CDialog(CTestMultiThreadDlg::IDD, pParent)
...{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CTestMultiThreadDlg::DoDataExchange(CDataExchange* pDX)
...{
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CTestMultiThreadDlg, CDialog)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
//}}AFX_MSG_MAP
ON_BN_CLICKED(IDC_BUTTON1, OnBnClickedButton1)
ON_WM_TIMER()
END_MESSAGE_MAP()
// CTestMultiThreadDlg 消息处理程序
BOOL CTestMultiThreadDlg::OnInitDialog()
...{
CDialog::OnInitDialog();
// 将“关于...”菜单项添加到系统菜单中。
// IDM_ABOUTBOX 必须在系统命令范围内。
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
...{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
...{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
// 执行此操作
SetIcon(m_hIcon, TRUE); // 设置大图标
SetIcon(m_hIcon, FALSE); // 设置小图标
// TODO: 在此添加额外的初始化代码
return TRUE; // 除非设置了控件的焦点，否则返回 TRUE
}
void CTestMultiThreadDlg::OnSysCommand(UINT nID, LPARAM lParam)
...{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
...{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
...{
CDialog::OnSysCommand(nID, lParam);
}
}
// 如果向对话框添加最小化按钮，则需要下面的代码
// 来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
// 这将由框架自动完成。
void CTestMultiThreadDlg::OnPaint()
...{
if (IsIconic())
...{
CPaintDC dc(this); // 用于绘制的设备上下文
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
// 使图标在工作矩形中居中
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// 绘制图标
dc.DrawIcon(x, y, m_hIcon);
}
else
...{
CDialog::OnPaint();
}
}
//当用户拖动最小化窗口时系统调用此函数取得光标显示。
HCURSOR CTestMultiThreadDlg::OnQueryDragIcon()
...{
return static_cast<HCURSOR>(m_hIcon);
}
BOOL CTestMultiThreadDlg::DestroyWindow()
...{
// TODO: 在此添加专用代码和/或调用基类
KillTimer(1) ;
DataThread.KillMonitoring() ;
return CDialog::DestroyWindow();
}
void CTestMultiThreadDlg::OnBnClickedButton1()
...{
// TODO: 在此添加控件通知处理程序代码
DataThread.InitData(this, 10000) ;
DataThread.StartMonitoring() ;
SetTimer(1,10 , NULL ) ;
}
void CTestMultiThreadDlg::OnTimer(UINT nIDEvent)
...{
// TODO: 在此添加消息处理程序代码和/或调用默认值
DataThread.AddData(10) ;
CDialog::OnTimer(nIDEvent);
}
内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理 
相关文章推荐
- 在Django中使用JavaScript代替模板接收并处理数据
- 数据接收中粘包及半包的处理
- STM32中断数据回调函数接收处理
- 数据接收中粘包及半包的处理
- 数据接收中粘包及半包的处理
- Socket接收数据时，断包，延迟的情况的处理方法
- C# winform端 通过HttpWebRequest进行post和get请求，数据格式为json，后台java端接收，其中有关传输特殊字符(\t,\r,',\n,n)等处理
- Winform开发框架之读卡器和条码扫描枪的数据接收处理
- 接收到数据后的处理
- 网卡只发送不接收数据的快捷处理
- 网络数据流接收处理过程分析
- Linux 三层、四层接收数据处理函数相关的链表
- 数据接收中粘包及半包的处理
- vlc学习计划（5）--网络数据流接收处理过程分析
- springMVC无法接收date类型数据的全局处理方
- SpringMVC @RequestBody接收Json对象字符串 @ResponseBody处理json数据类型
- 数据接收中粘包及半包的处理
- 串口处理数据（接收、解析、回复、框架）
- 串口通信——接收串口数据并处理（C语言）
- 串口通讯系列五之串口数据接收处理