PFN_FreeHeapMem (Compact 2013)

10/16/2014

This function is a custom deallocator function for heaps.

Syntax

typedef BOOL (*PFN_FreeHeapMem)(
  LPVOID pAddr,
  DWORD cbSize, 
  DWORD fdwAction, 
  DWORD dwUserData
);

Parameters

• pAddr
  [in] Memory address to be freed; always page-aligned.

• cbSize
  [in] Size to be freed or 0 if MEM_RELEASE is specified.

• fdwAction
  Value that specifies the action.

  The following table shows values for this parameter.

  Value	Description
  MEM_DECOMMIT	Decommit memory of size cbSize from pAddr.
  MEM_RELEASE	Release the whole memory reservation. cbSize will be 0.

• dwUserData
  [in] A DWORD associated with the memory reservation.

Return Value

A nonzero value indicates success. Zero indicates failure.

Requirements

See Also

Reference

Kernel Functions Available to the OAL
PFN_AllocHeapMem