CComAutoThreadModule Class

Article
01/08/2013

As of ATL 7.0, CComAutoThreadModule is obsolete: see ATL Module Classes for more details.

Important

This class and its members cannot be used in applications that execute in the Windows Runtime.

template< 
class ThreadAllocator= CComSimpleThreadAllocator  
> 
class CComAutoThreadModule : 
public CComModule

Parameters

ThreadAllocator
[in] The class managing thread selection. The default value is CComSimpleThreadAllocator.

Members

Methods

CreateInstance	Selects a thread and then creates an object in the associated apartment.
GetDefaultThreads	(Static) Dynamically calculates the number of threads for the module based on the number of processors.
Init	Creates the module's threads.
Lock	Increments the lock count on the module and on the current thread.
Unlock	Decrements the lock count on the module and on the current thread.

Data Members

dwThreadID	Contains the identifier of the current thread.
m_Allocator	Manages thread selection.
m_nThreads	Contains the number of threads in the module.
m_pApartments	Manages the module's apartments.

Remarks

Note

This class is obsolete, having been replaced by the CAtlAutoThreadModule and CAtlModule derived classes. The information that follows is for use with older releases of ATL.

CComAutoThreadModule derives from CComModule to implement a thread-pooled, apartment-model COM server for EXEs and Windows services. CComAutoThreadModule uses CComApartment to manage an apartment for each thread in the module.

Derive your module from CComAutoThreadModule when you want to create objects in multiple apartments. You must also include the DECLARE_CLASSFACTORY_AUTO_THREAD macro in your object's class definition to specify CComClassFactoryAutoThread as the class factory.

By default, the ATL COM AppWizard (the ATL Project Wizard in Visual Studio .NET) will derive your module from CComModule. To use CComAutoThreadModule, modify the class definition. For example:

class CMyModule : 
public CComAutoThreadModule<CComSimpleThreadAllocator>
{
public:
   LONG Unlock()
   {
      LONG l = CComAutoThreadModule<CComSimpleThreadAllocator>::Unlock();
      if (l == 0)
         PostThreadMessage(dwThreadID, WM_QUIT, 0, 0);
      return l;
   }

   DWORD dwThreadID;
};