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See Header, ignoring the template part:

ccloafer(梦游加拿大)

Header:
class CGServer : public CGObject
{
public:
template< class T > CGServer* CreateServerinNewThread(
T* p_sample, const char * st_svrname );

static bool IsRunning( const char * str_svr_name );
static void * ThreadFunc( void * para ); /* only called when server
* is created in a new thread
*/
protected:
static pthread_key_t key_ServerInstance;
static void DestroyServerInstanceKey(void * stupid_para );

template< class T > inline CGServer*
CGServer::CreateServerinNewThread( T* p_sample, const char * st_svrname )
{
.............................................
CGServer* p_thisserver = dynamic_cast<CGServer*> (new T(str_svrname ));
pthread_create (&p_thisserver->theThreadId, NULL, ThreadFunc,
reinterpret_cast <void *>(p_thisserver ) );

return p_thisserver;
}

(#3368381@0)
Last Updated: 2006-12-9
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工作学习 / 专业技术讨论 / 请教VC++ 多线程编程问题 -bobo123(bobo); 2006-12-9 {867} (#3367561@0)
在C++ 中
我定义了一个Manger 和 Worker 类
在Manager 中创建多个Worker 对象, Worker对象初始化过程中创建一个线程.
我希望每个Worker 对象线程运行代码是一样的, 既线程的代码的是Worker 类的一个成员函数,
以下是我在Worker 创建线程的一行代码
m_hPrinterEventThread = CreateThread(NULL, NULL,this->PrinterEventThread, this, NULL, 0);
其中PrinterEventThread 是Workerd的成员函数, 定义为: DWORD WINAPI PrinterEventThread(LPVOID lpVoid);
但编译通不过, 提示下列错误
error C2664: 'CreateThread' : cannot convert parameter 3 from 'DWORD (LPVOID)' to 'LPTHREAD_START_ROUTINE'
除非我把PrinterEventThread 定义为: static DWORD WINAPI PrinterEventThread(LPVOID lpVoid);
编译才能通过. 但如果这样做就意味着几个Worker 线程函数入口地址是一样, 到时会造成某一个线程的数据被另一线程所更改.

在C# 中不存在这样的问题, 所以我想VC++ 也应该有办法做到.
如果哪位知道怎么做请回应.
谢谢

VC++忘了，说的不一定适用。你可以用static把生成线程的成员函数定义成全局的，把this指针作为线程环境参数传递进去。线程里面的栈变量是不受影响的，所有数据段变量踢到类里面。 -ccloafer(梦游加拿大); 2006-12-9 {52} (#3367881@0)
我先去买菜，回来给你找找我以前的代码，不过不是VC的。

See Header, ignoring the template part: -ccloafer(梦游加拿大); 2006-12-9 {905} (#3368381@0)
Header:
class CGServer : public CGObject
{
public:
template< class T > CGServer* CreateServerinNewThread(
T* p_sample, const char * st_svrname );

static bool IsRunning( const char * str_svr_name );
static void * ThreadFunc( void * para ); /* only called when server
* is created in a new thread
*/
protected:
static pthread_key_t key_ServerInstance;
static void DestroyServerInstanceKey(void * stupid_para );

template< class T > inline CGServer*
CGServer::CreateServerinNewThread( T* p_sample, const char * st_svrname )
{
.............................................
CGServer* p_thisserver = dynamic_cast<CGServer*> (new T(str_svrname ));
pthread_create (&p_thisserver->theThreadId, NULL, ThreadFunc,
reinterpret_cast <void *>(p_thisserver ) );

return p_thisserver;
}
See Source: -ccloafer(梦游加拿大); 2006-12-9 {394} (#3368393@0)
void * CGServer::ThreadFunc( void * para )
{
CG3Server* p_thisserver;
...............................................
*p_thisserver = (CGServer*)para;
pthread_setspecific( key_ServerInstance, (void *)p_clntmap );
}
(*p_thisserver)->Initialize();
(*p_thisserver)->RunServer();
(*p_thisserver)->UnInitialize();
return NULL;
}

之所以叫Thread就是因为stack是单独的，你在thread里面分配的内存其他thread并不能看到。 -canadiantire(轮胎-pax et lux); 2006-12-9 (#3367970@0)
class 的function的第一个缺省参数是this指针，除非it is static function. So you can either change it to static or create a global function as mentioned by 梦游加拿大. Otherwise the signature of the function would not match. -kuailerensheng(happy); 2006-12-9 (#3368366@0)
谢谢以上各位的答复, 问题已经解决了. -bobo123(bobo); 2006-12-10 (#3368910@0)

@Calgary

See Header, ignoring the template part:

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