windows-nt/Source/XPSP1/NT/shell/comctl32/v6/mem.h
2020-09-26 16:20:57 +08:00

69 lines
2.1 KiB
C

#ifndef _INC_MEM
#define _INC_MEM
// wrappers for private allocations, near in 16 bits
#define NearAlloc(cb) ((void*)LocalAlloc(LPTR, (cb)))
#define NearReAlloc(pb, cb) ((void*)LocalReAlloc((HLOCAL)(pb), (cb), LMEM_MOVEABLE | LMEM_ZEROINIT))
#define NearFree(pb) (LocalFree((HLOCAL)(pb)) ? FALSE : TRUE)
#define NearSize(pb) LocalSize(pb)
#ifdef WIN32
//
// These macros are used in our controls, that in 32 bits we simply call
// LocalAlloc as to have the memory associated with the process that created
// it and as such will be cleaned up if the process goes away.
//
#ifdef DEBUG
LPVOID WINAPI ControlAlloc(HANDLE hheap, DWORD cb);
LPVOID WINAPI ControlReAlloc(HANDLE hheap, LPVOID pb, DWORD cb);
BOOL WINAPI ControlFree(HANDLE hheap, LPVOID pb);
SIZE_T WINAPI ControlSize(HANDLE hheap, LPVOID pb);
#else // DEBUG
#define ControlAlloc(hheap, cb) HeapAlloc((hheap), HEAP_ZERO_MEMORY, (cb))
#define ControlReAlloc(hheap, pb, cb) HeapReAlloc((hheap), HEAP_ZERO_MEMORY, (pb),(cb))
#define ControlFree(hheap, pb) HeapFree((hheap), 0, (pb))
#define ControlSize(hheap, pb) HeapSize((hheap), 0, (LPCVOID)(pb))
#endif // DEBUG
BOOL Str_Set(LPTSTR *ppsz, LPCTSTR psz); // in the process heap
#else // WIN32
//
// In 16 bit code we need the Allocs to go from our heap code as we do not
// want to limit them to 64K of data. If we have some type of notification of
// 16 bit application termination, We may want to see if we can
// dedicate different heaps for different processes to cleanup...
//
#define ControlAlloc(hheap, cb) Alloc(cb) /* calls to verify heap exists */
#define ControlReAlloc(hheap, pb, cb) ReAlloc(pb, cb)
#define ControlFree(hheap, pb) Free(pb)
#define ControlSize(hheap, pb) GetSize((LPCVOID)pb)
#define Str_Set(p, s) Str_SetPtr(p, s) // use shared heap for win16
#endif // WIN32
#ifndef WINNT
extern HANDLE g_hSharedHeap;
HANDLE InitSharedHeap(void);
__inline HANDLE
GetSharedHeapHandle(void)
{
if (g_hSharedHeap)
{
return g_hSharedHeap;
}
else
{
return InitSharedHeap();
}
}
#endif
#endif // !_INC_MEM