FlsGetValue function (fibersapi.h)

Retrieves the value in the calling fiber's fiber local storage (FLS) slot for the specified FLS index. Each fiber has its own slot for each FLS index.

Syntax

PVOID FlsGetValue(
  [in] DWORD dwFlsIndex
);

Parameters

[in] dwFlsIndex

The FLS index that was allocated by the FlsAlloc function.

Return value

If the function succeeds, the return value is the value stored in the calling fiber's FLS slot associated with the specified index.

If the function fails, the return value is NULL. To get extended error information, call GetLastError.

Remarks

FLS indexes are typically allocated by the FlsAlloc function during process or DLL initialization. After an FLS index is allocated, each fiber of the process can use it to access its own FLS slot for that index. A fiber specifies an FLS index in a call to FlsSetValue to store a value in its slot. The thread specifies the same index in a subsequent call to FlsSetValue to retrieve the stored value.

Requirements

See also

Fibers

FlsAlloc

FlsSetValue

Process and Thread Functions