include/heap.h

   1 /*
   2  * Win32 heap definitions
   3  *
   4  * Copyright 1996 Alexandre Julliard
   5  */
   6
   7 #ifndef __WINE_HEAP_H
   8 #define __WINE_HEAP_H
   9
  10 #include "winbase.h"
  11
  12 extern HANDLE SystemHeap;
  13 extern HANDLE SegptrHeap;
  14 extern CRITICAL_SECTION *HEAP_SystemLock;
  15
  16 extern int HEAP_IsInsideHeap( HANDLE heap, DWORD flags, LPCVOID ptr );
  17 extern SEGPTR HEAP_GetSegptr( HANDLE heap, DWORD flags, LPCVOID ptr );
  18 extern LPVOID HEAP_xalloc( HANDLE heap, DWORD flags, DWORD size );
  19 extern LPSTR HEAP_strdupA( HANDLE heap, DWORD flags, LPCSTR str );
  20 extern LPWSTR HEAP_strdupW( HANDLE heap, DWORD flags, LPCWSTR str );
  21 extern LPWSTR HEAP_strdupAtoW( HANDLE heap, DWORD flags, LPCSTR str );
  22 extern LPSTR HEAP_strdupWtoA( HANDLE heap, DWORD flags, LPCWSTR str );
  23
  24 /* SEGPTR helper macros */
  25
  26 #define SEGPTR_ALLOC(size) \
  27          (HeapAlloc( SegptrHeap, 0, (size) ))
  28 #define SEGPTR_NEW(type) \
  29          ((type *)HeapAlloc( SegptrHeap, 0, sizeof(type) ))
  30 #define SEGPTR_STRDUP(str) \
  31          (HIWORD(str) ? HEAP_strdupA( SegptrHeap, 0, (str) ) : (LPSTR)(str))
  32 #define SEGPTR_STRDUP_WtoA(str) \
  33          (HIWORD(str) ? HEAP_strdupWtoA( SegptrHeap, 0, (str) ) : (LPSTR)(str))
  34         /* define an inline function, a macro won't do */
  35 static __inline__ SEGPTR WINE_UNUSED SEGPTR_Get(LPCVOID ptr) {
  36          return (HIWORD(ptr) ? HEAP_GetSegptr( SegptrHeap, 0, ptr ) : (SEGPTR)ptr);
  37 }
  38 #define SEGPTR_GET(ptr) SEGPTR_Get(ptr)
  39 #define SEGPTR_FREE(ptr) \
  40          (HIWORD(ptr) ? HeapFree( SegptrHeap, 0, (ptr) ) : 0)
  41
  42 /* System heap locking macros */
  43
  44 #define SYSTEM_LOCK()       (EnterCriticalSection(HEAP_SystemLock))
  45 #define SYSTEM_UNLOCK()     (LeaveCriticalSection(HEAP_SystemLock))
  46 /* Use this one only when you own the lock! */
  47 #define SYSTEM_LOCK_COUNT() (HEAP_SystemLock->RecursionCount)
  48
  49
  50 typedef struct
  51 {
  52     LPVOID lpData;
  53     DWORD cbData;
  54     BYTE cbOverhead;
  55     BYTE iRegionIndex;
  56     WORD wFlags;
  57     union {
  58         struct {
  59             HANDLE hMem;
  60             DWORD dwReserved[3];
  61         } Block;
  62         struct {
  63             DWORD dwCommittedSize;
  64             DWORD dwUnCommittedSize;
  65             LPVOID lpFirstBlock;
  66             LPVOID lpLastBlock;
  67         } Region;
  68     } Foo;
  69 } PROCESS_HEAP_ENTRY, *LPPROCESS_HEAP_ENTRY;
  70
  71 #endif  /* __WINE_HEAP_H */