ATL 引用计数线程模型
2012-09-07 11:28 Clingingboy 阅读(806) 评论(0) 编辑 收藏 举报
只为记录
- CComSingleThreadModel Provides methods for incrementing and decrementing a variable. Does not provide a critical section.
- CComMultiThreadModel Provides thread-safe methods for incrementing and decrementing a variable. Provides a critical section.
- CComMultiThreadModelNoCS Provides thread-safe methods for incrementing and decrementing a variable. Does not provide a critical sectio
- CComObjectThreadModel Determines the appropriate threading-model class for a single object class.
- CComGlobalsThreadModel Determines the appropriate threading-model class for an object that is globally available.
class CComMultiThreadModelNoCS
{
public:
static ULONG WINAPI Increment(_Inout_ LPLONG p) throw()
{
return InterlockedIncrement(p);
}
static ULONG WINAPI Decrement(_Inout_ LPLONG p) throw()
{
return InterlockedDecrement(p);
}
typedef CComFakeCriticalSection AutoCriticalSection;
typedef CComFakeCriticalSection AutoDeleteCriticalSection;
typedef CComFakeCriticalSection CriticalSection;
typedef CComMultiThreadModelNoCS ThreadModelNoCS;
};
class CComMultiThreadModel
{
public:
static ULONG WINAPI Increment(_Inout_ LPLONG p) throw()
{
return InterlockedIncrement(p);
}
static ULONG WINAPI Decrement(_Inout_ LPLONG p) throw()
{
return InterlockedDecrement(p);
}
typedef CComAutoCriticalSection AutoCriticalSection;
typedef CComAutoDeleteCriticalSection AutoDeleteCriticalSection;
typedef CComCriticalSection CriticalSection;
typedef CComMultiThreadModelNoCS ThreadModelNoCS;
};
class CComSingleThreadModel
{
public:
static ULONG WINAPI Increment(_Inout_ LPLONG p) throw()
{
return ++(*p);
}
static ULONG WINAPI Decrement(_Inout_ LPLONG p) throw()
{
return --(*p);
}
typedef CComFakeCriticalSection AutoCriticalSection;
typedef CComFakeCriticalSection AutoDeleteCriticalSection;
typedef CComFakeCriticalSection CriticalSection;
typedef CComSingleThreadModel ThreadModelNoCS;
};