FlsCallback callback function
An application-defined function. If the FLS slot is in use, FlsCallback is called on fiber deletion, thread exit, and when an FLS index is freed. Specify this function when calling the FlsAlloc function. The PFLS_CALLBACK_FUNCTION type defines a pointer to this callback function. FlsCallback is a placeholder for the application-defined function name.
Syntax
VOID WINAPI FlsCallback( _In_ PVOID lpFlsData );
Parameters
- lpFlsData [in]
-
The value stored in the FLS slot for the calling fiber.
Return value
This function does not return a value.
Remarks
Each FLS index has an associated FlsCallback function. The callback function can be used for any purpose, but it is intended to be used primarily to free memory.
Requirements
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Minimum supported client |
Windows Vista [desktop apps | Windows Store apps] |
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Minimum supported server |
Windows Server 2003 [desktop apps | Windows Store apps] |
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Header |
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See also