Worker Archetype

Article
2013-01-30

Classes that conform to the worker archetype provide the code to process work items queued on a thread pool.

Implementation

To implement a class conforming to this archetype, the class must provide the following features:

Method	Description
Initialize	Called to initialize the worker object before any requests are passed to Execute.
Execute	Called to process a work item.
Terminate	Called to uninitialize the worker object after all requests have been passed to Execute.

Typedef	Description
RequestType	A typedef for the type of work item that can be processed by the worker class.

A typical worker class looks like this:

class CMyWorker
{
public:
   typedef MyRequestType RequestType;

   BOOL Initialize(void* pvWorkerParam);

   void Execute(MyRequestType request, void* pvWorkerParam, OVERLAPPED* pOverlapped);

   void Terminate(void* pvWorkerParam);
};

Existing Implementations

These classes conform to this archetype:

Class	Description
CNonStatelessWorker	Receives requests from the thread pool and passes them on to a worker object that is created and destroyed for each request.

Use

These template parameters expect the class to conform to this archetype:

Parameter name	Used by
Worker	CThreadPool
Worker	CNonStatelessWorker

Requirements

Header: atlutil.h

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Worker Archetype

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