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Function RTSetFlsSlots

Function RTSetFlsSlots changes the number of available FLS slots:

DWORD RTSetFlsSlots(DWORD Slots, LPVOID * MainTlsArray, LPVOID * CBArray, DWORD * IDXArray);

Parameters

Slots

New number of available FLS slots. This value must be in the range 16 .. 256.

MainTlsArray

TLS data array to use for the main thread of the application. This array must have at least Slots entries. It is used to call function RTSetTlsSlots.

CBArray

Data array to store Callbacks registered through function FlsAlloc. This array must have at least Slots entries.

IDXArray

Data array to store TLS indexes Callbacks reguested through function FlsAlloc. This array must have at least Slots entries.

return value

Number of allocated FLS slots after the call.

This function must be called before any threads have been created. The default number of available FLS slots is 16. This function also increases the number of TLS slots by calling function RTSetTlsSlots(Slots, MainTlsArray).

This function cannot be used to decrease the number of FLS slots. If Slots specifies a value less than the current limit, the function has no effect and the old limit is returned.

Example:

#include <windows.h> 
#include <rttarget.h> 

#define NEEDED_FLS_SLOTS 32 

LPVOID MainTlsArray[NEEDED_FLS_SLOTS]; 
LPVOID CBArray[NEEDED_FLS_SLOTS]; 
DWORD  IDXArray[NEEDED_FLS_SLOTS]; 

int main(void) 
{ 
   if (RTSetFlsSlots(NEEDED_FLS_SLOTS, MainTlsArray, CBAerray, IDXArray) < NEEDED_FLS_SLOTS) 
      printf("failed to increase FLS slots!\n"); 
   ... 
}

Function RTSetTlsSlots

Function RTCallDebugger