多线程例子和游戏日志记录例子

#include "stdafx.h"
#include 
#include 
#include //获得时间
#include //va_start
#include //用 _mkdir()创建一个文件夹（目录） 
#include //access

#include //MultiByteToWideChar
#pragma comment(lib, "shlwapi.lib")

#include  
#include  
//#include  //多线程相关操作头文件，可移植众多平台linux下

#define FILE_NAME "D:\\Server1\\Serverserver2\\serverServer4\\server.log"
#define NUM_THREADS 5 //线程数

///////////////////////////////////////////////////////////////////////
//基本功能性模块定义
///////////////////////////////////////////////////////////////////////

//共享锁
#if defined(_WIN32)
class MyLock
{
	CRITICAL_SECTION m_Lock ;
public :
	MyLock( ){ InitializeCriticalSection(&m_Lock); } ;
	~MyLock( ){ DeleteCriticalSection(&m_Lock); } ;
	VOID	Lock( ){ EnterCriticalSection(&m_Lock); } ;
	VOID	Unlock( ){ LeaveCriticalSection(&m_Lock); } ;
};
#elif defined(__LINUX__)
class MyLock
{
	pthread_mutex_t 	m_Mutex; 
public :
	MyLock( ){ pthread_mutex_init( &m_Mutex , NULL );} ;
	~MyLock( ){ pthread_mutex_destroy( &m_Mutex) ; } ;
	VOID	Lock( ){ pthread_mutex_lock(&m_Mutex); } ;
	VOID	Unlock( ){ pthread_mutex_unlock(&m_Mutex); } ;
};
#endif

MyLock g_log_lock ;

static int count = 0;
unsigned int __stdcall  WriteLog(void *pM)
{
	char *filename = FILE_NAME;
	char *msg = "\r\n(###) main..." ;
	g_log_lock.Lock();
	switch (count)
	{
	case 0:
		Sleep(6000);
		break;
	case 1:
		Sleep(1000);
		break;
	case 2:
		Sleep(10000);
		break;
	case 3:
		Sleep(8000);
		break;
	case 4:
		Sleep(3000);
		break;	
	}
	char info[2048];
	memset(info, 0, sizeof(info));
	va_list argptr;

	va_start(argptr, msg);
	vsprintf(info,msg,argptr);
	va_end(argptr);

	time_t timep;
	struct tm *p;
	time(&timep);
	char now[30];
	//p = gmtime(&timep);
	p = localtime(&timep);
	strftime(now,64,"%Y-%m-%d %H:%M:%S",p); 
	strcat( info, now ) ;

	WCHAR wszClassName[256];
	memset(wszClassName,0,sizeof(wszClassName));
	MultiByteToWideChar(CP_ACP,0,filename,strlen(filename)+1,wszClassName,
		sizeof(wszClassName)/sizeof(wszClassName[0]));

	FILE* fp = fopen( filename, "ab+" ) ;
	//if是多余的，因为上一个函数已经做过处理。可以直接写文件
	if (!fp)
	{
		//创建文件
		if(_mkdir(filename)==0) 
		{
			FILE* fp = fopen( filename, "ab" ) ;
			fwrite(info, strlen(info), 1, fp ) ;
			fclose(fp) ;
		}
	}
	else
	{
		fwrite(info, strlen(info), 1, fp ) ;
		fclose(fp) ;
	}
	 printf("线程ID号为%4d的子线程报数%d\n", GetCurrentThreadId(),count++);
	g_log_lock.Unlock();
	return 0;
}

void WriteFile(char *fileName)
{
	char *tag;
	for(tag=fileName;*tag;tag++)
	{
		if (*tag=='\\')
		{
			char buf[1000],path[1000];
			strcpy(buf,fileName);
			buf[strlen(fileName)-strlen(tag)+1]=NULL;
			strcpy(path,buf);
			if (access(path,6)==-1)
			{
				mkdir(path);
			}
		}
	}
	FILE* fp = fopen( fileName, "ab+" ) ;	
	if (!fp)
	{
		//创建文件
		if(_mkdir(fileName)==0);
	}
}

void crete_thred()
{
	HANDLE handle[NUM_THREADS];  
	for (int i=0;i

//经典线程同步互斥问题
#include "stdafx.h"
#include 
#include 
#include 
long g_nNum;
unsigned int __stdcall Fun(void *pPM);
const int THREAD_NUM = 10;
//信号量与关键段
HANDLE            g_hThreadParameter;
CRITICAL_SECTION  g_csThreadCode;
int _tmain(int argc, _TCHAR* argv[])
{
printf("     经典线程同步 信号量Semaphore\n");
//printf(" -- by MoreWindows( http://blog.csdn.net/MoreWindows ) --\n\n");

//初始化信号量和关键段
g_hThreadParameter = CreateSemaphore(NULL, 0, 1, NULL);//当前0个资源，最大允许1个同时访问
InitializeCriticalSection(&g_csThreadCode);

HANDLE  handle[THREAD_NUM];	
g_nNum = 0;
int i = 0;
while (i < THREAD_NUM) 
{
handle[i] = (HANDLE)_beginthreadex(NULL, 0, Fun, &i, 0, NULL);
WaitForSingleObject(g_hThreadParameter, INFINITE);//等待信号量>0
++i;
}
WaitForMultipleObjects(THREAD_NUM, handle, TRUE, INFINITE);

//销毁信号量和关键段
DeleteCriticalSection(&g_csThreadCode);
CloseHandle(g_hThreadParameter);
for (i = 0; i < THREAD_NUM; i++)
CloseHandle(handle[i]);
return 0;
}
unsigned int __stdcall Fun(void *pPM)
{
int nThreadNum = *(int *)pPM;
ReleaseSemaphore(g_hThreadParameter, 1, NULL);//信号量++

Sleep(50);//some work should to do

EnterCriticalSection(&g_csThreadCode);
++g_nNum;
Sleep(0);//some work should to do
printf("线程编号为%d  全局资源值为%d\n", nThreadNum, g_nNum);
LeaveCriticalSection(&g_csThreadCode);
getchar();
return 0;
}

 #include "stdafx.h"
 #include 
 #include 
 #include 
 
//子线程函数
unsigned int __stdcall ThreadFun(PVOID pM)
{
	int count = 0;
	while(GetCurrentThreadId()%20==0)
	{
		printf("111线程ID号为%4d的子线程\n", GetCurrentThreadId());
		Sleep(2000);
		count++;
		if (count==5)
		{
			Sleep(10000);
			break;
		}
	}
	if (count==0)
	{
		printf("222线程ID号为%4d的子线程\n", GetCurrentThreadId());
	}
	return 0;
}