NT4/private/windows/rover/filesync/syncui/mem.h
2020-09-30 17:12:29 +02:00

87 lines
3.0 KiB
C

#ifndef _INC_MEM
#define _INC_MEM
#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 PUBLIC MemAlloc(HANDLE hheap, DWORD cb);
LPVOID PUBLIC MemReAlloc(HANDLE hheap, LPVOID pb, DWORD cb);
BOOL PUBLIC MemFree(HANDLE hheap, LPVOID pb);
DWORD PUBLIC MemSize(HANDLE hheap, LPVOID pb);
#else // DEBUG
#define MemAlloc(hheap, cb) HeapAlloc((hheap), HEAP_ZERO_MEMORY, (cb))
#define MemReAlloc(hheap, pb, cb) HeapReAlloc((hheap), HEAP_ZERO_MEMORY, (pb),(cb))
#define MemFree(hheap, pb) HeapFree((hheap), 0, (pb))
#define MemSize(hheap, pb) HeapSize((hheap), 0, (LPCVOID)(pb))
#endif // DEBUG
#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 MemAlloc(hheap, cb) Alloc(cb) /* calls to verify heap exists */
#define MemReAlloc(hheap, pb, cb) ReAlloc(pb, cb)
#define MemFree(hheap, pb) Free(pb)
#define MemSize(hheap, pb) GetSize((LPCVOID)pb)
#endif // WIN32
void PUBLIC Mem_Terminate();
extern HANDLE g_hSharedHeap;
// Shared memory allocation functions.
//
// void _huge* SharedAlloc(long cb);
// Alloc a chunk of memory, quickly, with no 64k limit on size of
// individual objects or total object size. Initialize to zero.
//
void _huge* PUBLIC SharedAlloc(long cb);
// void _huge* SharedReAlloc(void _huge* pb, long cb);
// Realloc one of above. If pb is NULL, then this function will do
// an alloc for you. Initializes new portion to zero.
//
void _huge* PUBLIC SharedReAlloc(void _huge* pb, long cb);
// BOOL SharedFree(void _huge* FAR * ppb);
// Free a chunk of memory alloced or realloced with above routines.
// Sets *ppb to zero.
//
BOOL PUBLIC SharedFree(void _huge* * ppb);
// DWORD SharedGetSize(void _huge* pb);
// Get the size of a block allocated by Alloc()
//
DWORD PUBLIC SharedGetSize(void _huge* pb);
// type _huge * SharedAllocType(type); (macro)
// Alloc some memory the size of <type> and return pointer to <type>.
//
#define SharedAllocType(type) (type _huge *)SharedAlloc(sizeof(type))
// type _huge * SharedAllocArray(type, int cNum); (macro)
// Alloc an array of data the size of <type>.
//
#define SharedAllocArray(type, cNum) (type _huge *)SharedAlloc(sizeof(type) * (cNum))
// type _huge * SharedReAllocArray(type, void _huge * pb, int cNum);
//
#define SharedReAllocArray(type, pb, cNum) (type _huge *)SharedReAlloc(pb, sizeof(type) * (cNum))
#endif // !_INC_MEM