VC定时执行任务

标签：boost 定时器

flyfish  2015-1-19

SetTimer

使用timeSetEvent

头文件支持

#include <MMSystem.h>
#pragma comment(lib, "winmm.lib")

static void CALLBACK Function(UINT wTimerID,UINT nMsg,DWORD dwUser,DWORD dw1,DWORD dw2);

void ClassName::Function(UINT wTimerID,UINT nMsg,DWORD dwUser,DWORD dw1,DWORD dw2)
{
ClassName* pDlg=(ClassName*)dwUser;
}

int nTimeID=timeSetEvent(100,100,Function,(DWORD)this,TIME_PERIODIC);

释放定时器资源 

 timeKillEvent(nTimeID);

MMRESULT timeSetEvent(
  UINT           uDelay,     
  UINT           uResolution,
  LPTIMECALLBACK lpTimeProc, 
  DWORD_PTR      dwUser,     
  UINT           fuEvent     
);

头文件支持
#include <boost/asio.hpp>
#include <boost/bind.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>

类中的函数声明
void BoostOnTimer(const boost::system::error_code& /*e*/,
boost::asio::deadline_timer* t,UINT nElapse);
void BoostSetTimer(UINT nElapse );

类中的函数实现
void ClassName::BoostOnTimer(const boost::system::error_code& /*e*/,
	boost::asio::deadline_timer* t,UINT nElapse)

{
	
//任务执行

//终止条件 
	
t->expires_at(t->expires_at() + boost::posix_time::milliseconds(nElapse));
	
t->async_wait(boost::bind(&ClassName::BoostOnTimer,this,boost::asio::placeholders::error, t,nElapse));

}




void ClassName::BoostSetTimer(UINT nElapse )//毫秒

{
	
boost::asio::io_service io;
	
boost::asio::deadline_timer t(io, boost::posix_time::milliseconds(nElapse));
	
t.async_wait(boost::bind(&ClassName::BoostOnTimer,this,boost::asio::placeholders::error, &t, nElapse));
	
io.run();

}		


调用方式 BoostSetTimer(3000);

VC定时执行任务

标签：boost 定时器

原文地址：http://blog.csdn.net/flyfish1986/article/details/42873297