36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
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/*++
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Copyright (c) 1995 Microsoft Corporation
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Module Name:
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inc\worker.h
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Abstract:
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Header for worker threads for the router process
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Revision History:
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Gurdeep Singh Pall 7/28/95 Created
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--*/
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//* Typedef for the worker function passed in QueueWorkItem API
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//
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typedef VOID (* WORKERFUNCTION) (PVOID) ;
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DWORD QueueWorkItem (WORKERFUNCTION functionptr, PVOID context) ;
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// The following defines are included here as a hint on how the worker thread pool is managed:
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// The minimum number of threads is Number of processors + 1
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// The maximum number of threads is MAX_WORKER_THREADS
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// If work queue exceeds MAX_WORK_ITEM_THRESHOLD and we have not hit the max thread limit then another thread is created
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// If work queue falls below MIN_WORK_ITEM_THRESHOLD and there are more than minimum threads then threads are killed.
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//
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// Note: changing these flags will not change anything.
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//
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#define MAX_WORKER_THREADS 10 // max number of threads at any time
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#define MAX_WORK_ITEM_THRESHOLD 30 // backlog work item count at which another thread is kicked off
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#define MIN_WORK_ITEM_THRESHOLD 2 // work item count at which extra threads are killed
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