| 1 | /* $Id: heap.cpp,v 1.35 2001-10-10 22:25:34 phaller Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Win32 heap API functions for OS/2
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| 5 | *
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| 6 | * Copyright 1999-2001 Sander van Leeuwen
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| 7 | *
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| 8 | * Global memory functions ported from Wine
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| 9 | * Copyright 1995 Alexandre Julliard
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| 10 | *
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| 11 | * Project Odin Software License can be found in LICENSE.TXT
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| 12 | *
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| 13 | */
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| 14 |
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| 15 | #include <os2win.h>
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| 16 | #include <stdlib.h>
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| 17 | #include <string.h>
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| 18 | #include <misc.h>
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| 19 | #define _WIN32
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| 20 | #include "os2heap.h"
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| 21 | #include <heap.h>
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| 22 | #include <odinwrap.h>
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| 23 | #include "initterm.h"
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| 24 |
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| 25 | #define DBG_LOCALLOG DBG_heap
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| 26 | #include "dbglocal.h"
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| 27 |
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| 28 | ODINDEBUGCHANNEL(KERNEL32-HEAP)
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| 29 |
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| 30 |
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| 31 | static HANDLE processheap = NULL;
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| 32 | OS2Heap *OS2ProcessHeap = NULL;
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| 33 |
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| 34 | //******************************************************************************
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| 35 | //******************************************************************************
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| 36 | ODINFUNCTIONNODBG3(LPVOID, HeapAlloc, HANDLE, hHeap, DWORD, dwFlags,
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| 37 | DWORD, dwBytes)
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| 38 | {
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| 39 | OS2Heap *curheap = OS2Heap::find(hHeap);
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| 40 | LPVOID rc;
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| 41 |
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| 42 | if(curheap == NULL)
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| 43 | return(NULL);
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| 44 |
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| 45 | rc = curheap->Alloc(dwFlags, dwBytes);
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| 46 | dprintf2(("HeapAlloc %d bytes -> %x", dwBytes, rc));
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| 47 | return rc;
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| 48 | }
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| 49 | //******************************************************************************
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| 50 | //******************************************************************************
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| 51 | ODINFUNCTIONNODBG4(LPVOID, HeapReAlloc, HANDLE, hHeap, DWORD, dwFlags, LPVOID,
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| 52 | lpMem, DWORD, dwBytes)
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| 53 | {
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| 54 | OS2Heap *curheap = OS2Heap::find(hHeap);
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| 55 |
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| 56 | dprintf2(("HeapReAlloc %x %x %x %X bytes", hHeap, dwFlags, lpMem, dwBytes));
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| 57 | if(curheap == NULL)
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| 58 | return(NULL);
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| 59 |
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| 60 | //Some apps (i.e. nt's cmd.exe) assume the returned pointer is the same as the old one!
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| 61 | if(lpMem && curheap->Size(0, lpMem) > dwBytes)
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| 62 | return lpMem;
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| 63 |
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| 64 | return(curheap->ReAlloc(dwFlags, lpMem, dwBytes));
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| 65 | }
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| 66 | //******************************************************************************
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| 67 | //******************************************************************************
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| 68 | ODINFUNCTIONNODBG3(BOOL, HeapFree, HANDLE, hHeap, DWORD, dwFlags, LPVOID, lpMem)
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| 69 | {
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| 70 | OS2Heap *curheap = OS2Heap::find(hHeap);
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| 71 |
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| 72 | dprintf2(("HeapFree %X", lpMem));
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| 73 | if(curheap == NULL)
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| 74 | return(FALSE);
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| 75 |
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| 76 | return(curheap->Free(dwFlags, lpMem));
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| 77 | }
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| 78 | //******************************************************************************
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| 79 | //******************************************************************************
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| 80 | ODINFUNCTIONNODBG3(HANDLE, HeapCreate, DWORD, flOptions, DWORD, dwInitialSize,
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| 81 | DWORD, dwMaximumSize)
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| 82 | {
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| 83 | OS2Heap *curheap;
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| 84 |
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| 85 | //Create Open32 heap for it's handle
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| 86 | dprintf2(("HeapCreate dwInitialSize %X", dwInitialSize));
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| 87 |
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| 88 | curheap = new OS2Heap(flOptions, dwInitialSize, dwMaximumSize);
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| 89 |
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| 90 | if(curheap == NULL)
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| 91 | {
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| 92 | return(NULL);
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| 93 | }
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| 94 |
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| 95 | if(curheap->getHeapHandle() == NULL)
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| 96 | {
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| 97 | delete(curheap);
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| 98 | return(NULL);
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| 99 | }
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| 100 | return(curheap->getHeapHandle());
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| 101 | }
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| 102 | //******************************************************************************
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| 103 | //******************************************************************************
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| 104 | ODINFUNCTIONNODBG1(BOOL, HeapDestroy, HANDLE, hHeap)
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| 105 | {
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| 106 | OS2Heap *curheap = OS2Heap::find(hHeap);
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| 107 |
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| 108 | dprintf2(("HeapDestroy %X", hHeap));
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| 109 | if(curheap == NULL)
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| 110 | return(FALSE);
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| 111 |
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| 112 | delete(curheap);
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| 113 | return(TRUE);
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| 114 | }
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| 115 | //******************************************************************************
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| 116 | //******************************************************************************
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| 117 | ODINFUNCTIONNODBG3(DWORD, HeapSize, HANDLE, hHeap, DWORD, arg2, PVOID, lpMem)
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| 118 | {
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| 119 | OS2Heap *curheap = OS2Heap::find(hHeap);
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| 120 |
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| 121 | dprintf2(("HeapSize %X %x %x", hHeap, arg2, lpMem));
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| 122 | if(curheap == NULL)
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| 123 | return(0);
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| 124 | return curheap->Size(arg2, lpMem);
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| 125 | }
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| 126 | //******************************************************************************
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| 127 | //TODO: Check this!!!
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| 128 | //******************************************************************************
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| 129 | ODINFUNCTIONNODBG2(DWORD, HeapCompact, HANDLE, hHeap, DWORD, dwFlags)
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| 130 | {
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| 131 | dprintf(("KERNEL32: HeapCompact: Unknown API - stub\n"));
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| 132 | return(0);
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| 133 | }
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| 134 | //******************************************************************************
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| 135 | //******************************************************************************
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| 136 | ODINFUNCTIONNODBG3(BOOL, HeapValidate, HANDLE, hHeap, DWORD, dwFlags, LPCVOID, lpMem)
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| 137 | {
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| 138 | OS2Heap *curheap = OS2Heap::find(hHeap);
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| 139 |
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| 140 | dprintf2(("KERNEL32: HeapValidate %x %x %x", hHeap, dwFlags, lpMem));
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| 141 | if(curheap == NULL)
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| 142 | return FALSE;
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| 143 |
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| 144 | return curheap->Validate(dwFlags, lpMem);
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| 145 | }
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| 146 | //******************************************************************************
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| 147 | //******************************************************************************
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| 148 | ODINFUNCTIONNODBG1(BOOL, HeapUnlock, HANDLE, hHeap)
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| 149 | {
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| 150 | dprintf(("KERNEL32: HeapUnlock - stub (TRUE)\n"));
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| 151 | return(TRUE);
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| 152 | }
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| 153 | //******************************************************************************
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| 154 | //******************************************************************************
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| 155 | ODINFUNCTIONNODBG1(BOOL, HeapLock, HANDLE, hHeap)
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| 156 | {
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| 157 | dprintf(("KERNEL32: HeapLock - stub (TRUE)\n"));
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| 158 | return(TRUE);
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| 159 | }
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| 160 | //******************************************************************************
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| 161 | // LPPROCESS_HEAP_ENTRY lpEntry
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| 162 | //******************************************************************************
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| 163 | ODINFUNCTIONNODBG2(BOOL, HeapWalk, HANDLE, hHeap, LPVOID, lpEntry)
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| 164 | {
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| 165 | dprintf(("KERNEL32: HeapWalk - stub (TRUE)\n"));
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| 166 | return(TRUE);
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| 167 | }
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| 168 | //******************************************************************************
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| 169 | //******************************************************************************
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| 170 | ODINFUNCTIONNODBG0(HANDLE, GetProcessHeap)
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| 171 | {
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| 172 | HANDLE hHeap;
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| 173 |
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| 174 | // dprintf2(("KERNEL32: GetProcessHeap\n"));
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| 175 | //SvL: Only one process heap per process
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| 176 | if(processheap == NULL) {
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| 177 | OS2ProcessHeap = new OS2Heap(HEAP_GENERATE_EXCEPTIONS, 0x4000, 0);
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| 178 |
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| 179 | if(OS2ProcessHeap == NULL) {
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| 180 | return(NULL);
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| 181 | }
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| 182 | processheap = OS2ProcessHeap->getHeapHandle();
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| 183 | }
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| 184 | return(processheap);
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| 185 | }
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| 186 | #if 1
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| 187 | /*
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| 188 | * Win32 Global heap functions (GlobalXXX).
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| 189 | * These functions included in Win32 for compatibility with 16 bit Windows
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| 190 | * Especially the moveable blocks and handles are oldish.
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| 191 | * But the ability to directly allocate memory with GPTR and LPTR is widely
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| 192 | * used.
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| 193 | *
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| 194 | * The handle stuff looks horrible, but it's implemented almost like Win95
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| 195 | * does it.
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| 196 | *
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| 197 | */
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| 198 |
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| 199 | #define MAGIC_GLOBAL_USED 0x5342
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| 200 | #define GLOBAL_LOCK_MAX 0xFF
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| 201 | #define HANDLE_TO_INTERN(h) ((PGLOBAL32_INTERN)(((char *)(h))-2))
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| 202 | #define INTERN_TO_HANDLE(i) ((HGLOBAL) &((i)->Pointer))
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| 203 | #define ISHANDLE(h) (((DWORD)(h)&2)!=0)
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| 204 | #define ISPOINTER(h) (((DWORD)(h)&2)==0)
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| 205 |
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| 206 | //SvL: -2 for 8 byte alignment
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| 207 | #define POINTER_TO_HANDLE(p) (*(((HGLOBAL *)(p))-2))
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| 208 | #define HGLOBAL_SIZE 2*sizeof(HGLOBAL)
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| 209 |
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| 210 | #pragma pack(1)
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| 211 |
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| 212 | typedef struct __GLOBAL32_INTERN
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| 213 | {
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| 214 | WORD Magic;
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| 215 | LPVOID Pointer;
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| 216 | BYTE Flags;
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| 217 | BYTE LockCount;
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| 218 | } GLOBAL32_INTERN, *PGLOBAL32_INTERN;
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| 219 |
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| 220 | #pragma pack()
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| 221 |
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| 222 | /***********************************************************************
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| 223 | * GlobalAlloc (KERNEL32.@)
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| 224 | * RETURNS
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| 225 | * Handle: Success
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| 226 | * NULL: Failure
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| 227 | */
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| 228 | HGLOBAL WINAPI GlobalAlloc(
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| 229 | UINT flags, /* [in] Object allocation attributes */
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| 230 | DWORD size /* [in] Number of bytes to allocate */
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| 231 | ) {
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| 232 | PGLOBAL32_INTERN pintern;
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| 233 | DWORD hpflags;
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| 234 | LPVOID palloc;
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| 235 |
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| 236 | if(flags&GMEM_ZEROINIT)
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| 237 | hpflags=HEAP_ZERO_MEMORY;
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| 238 | else
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| 239 | hpflags=0;
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| 240 |
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| 241 | if((flags & GMEM_MOVEABLE)==0) /* POINTER */
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| 242 | {
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| 243 | palloc=HeapAlloc(GetProcessHeap(), hpflags, size);
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| 244 | dprintf(("KERNEL32: GlobalAlloc %x %d returned %x", flags, size, palloc));
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| 245 | return (HGLOBAL) palloc;
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| 246 | }
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| 247 | else /* HANDLE */
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| 248 | {
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| 249 | /* HeapLock(heap); */
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| 250 |
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| 251 | pintern=(PGLOBAL32_INTERN)HeapAlloc(GetProcessHeap(), 0, sizeof(GLOBAL32_INTERN));
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| 252 | if (!pintern) return 0;
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| 253 | if(size)
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| 254 | {
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| 255 | //SvL: 2*sizeof for 8 byte alignment
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| 256 | if (!(palloc=HeapAlloc(GetProcessHeap(), hpflags, size+HGLOBAL_SIZE))) {
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| 257 | HeapFree(GetProcessHeap(), 0, pintern);
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| 258 | return 0;
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| 259 | }
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| 260 | *(HGLOBAL *)palloc=INTERN_TO_HANDLE(pintern);
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| 261 | //SvL: 2*sizeof for 8 byte alignment
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| 262 | pintern->Pointer=(char *) palloc+HGLOBAL_SIZE;
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| 263 | }
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| 264 | else
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| 265 | pintern->Pointer=NULL;
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| 266 | pintern->Magic=MAGIC_GLOBAL_USED;
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| 267 | pintern->Flags=flags>>8;
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| 268 | pintern->LockCount=0;
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| 269 |
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| 270 | /* HeapUnlock(heap); */
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| 271 |
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| 272 | dprintf(("KERNEL32: GlobalAlloc %x %d returned %x", flags, size, INTERN_TO_HANDLE(pintern)));
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| 273 | return INTERN_TO_HANDLE(pintern);
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| 274 | }
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| 275 | }
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| 276 | /***********************************************************************
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| 277 | * GlobalLock (KERNEL32.@)
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| 278 | * RETURNS
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| 279 | * Pointer to first byte of block
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| 280 | * NULL: Failure
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| 281 | */
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| 282 | LPVOID WINAPI GlobalLock(
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| 283 | HGLOBAL hmem /* [in] Handle of global memory object */
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| 284 | ) {
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| 285 | PGLOBAL32_INTERN pintern;
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| 286 | LPVOID palloc;
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| 287 |
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| 288 |
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| 289 | if(hmem == NULL || ISPOINTER(hmem)) {
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| 290 | dprintf(("KERNEL32: GlobalLock %x returned %x", hmem, hmem));
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| 291 | return (LPVOID) hmem;
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| 292 | }
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| 293 |
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| 294 | /* verify lpMem address */
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| 295 | if (hmem >= (HGLOBAL)ulMaxAddr || hmem < (HGLOBAL)0x10000)
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| 296 | {
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| 297 | dprintf(("GlobalLock ERROR BAD HEAP POINTER:%X\n", hmem));
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| 298 | DebugInt3();
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| 299 | return 0;
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| 300 | }
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| 301 |
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| 302 | /* HeapLock(GetProcessHeap()); */
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| 303 |
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| 304 | pintern=HANDLE_TO_INTERN(hmem);
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| 305 | if(pintern->Magic==MAGIC_GLOBAL_USED)
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| 306 | {
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| 307 | if(pintern->LockCount<GLOBAL_LOCK_MAX)
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| 308 | pintern->LockCount++;
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| 309 | palloc=pintern->Pointer;
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| 310 | }
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| 311 | else
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| 312 | {
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| 313 | dprintf(("ERROR: GlobalLock invalid handle %x", hmem));
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| 314 | palloc=(LPVOID) NULL;
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| 315 | SetLastError(ERROR_INVALID_HANDLE);
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| 316 | }
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| 317 | /* HeapUnlock(GetProcessHeap()); */;
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| 318 |
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| 319 | dprintf(("KERNEL32: GlobalLock %x returned %x", hmem, palloc));
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| 320 | return palloc;
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| 321 | }
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| 322 |
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| 323 |
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| 324 | /***********************************************************************
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| 325 | * GlobalUnlock (KERNEL32.@)
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| 326 | * RETURNS
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| 327 | * TRUE: Object is still locked
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| 328 | * FALSE: Object is unlocked
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| 329 | */
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| 330 | BOOL WINAPI GlobalUnlock(
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| 331 | HGLOBAL hmem /* [in] Handle of global memory object */
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| 332 | ) {
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| 333 | PGLOBAL32_INTERN pintern;
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| 334 | BOOL locked;
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| 335 |
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| 336 | dprintf(("KERNEL32: GlobalUnlock %x", hmem));
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| 337 |
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| 338 | if(hmem == NULL || ISPOINTER(hmem))
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| 339 | return FALSE;
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| 340 |
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| 341 | /* verify lpMem address */
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| 342 | if (hmem >= (HGLOBAL)ulMaxAddr || hmem < (HGLOBAL)0x10000)
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| 343 | {
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| 344 | dprintf(("GlobalUnlock ERROR BAD HEAP POINTER:%X\n", hmem));
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| 345 | DebugInt3();
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| 346 | return 0;
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| 347 | }
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| 348 |
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| 349 | /* HeapLock(GetProcessHeap()); */
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| 350 | pintern=HANDLE_TO_INTERN(hmem);
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| 351 |
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| 352 | if(pintern->Magic==MAGIC_GLOBAL_USED)
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| 353 | {
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| 354 | if((pintern->LockCount<GLOBAL_LOCK_MAX)&&(pintern->LockCount>0))
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| 355 | pintern->LockCount--;
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| 356 |
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| 357 | locked = (pintern->LockCount != 0);
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| 358 | if (!locked) SetLastError(NO_ERROR);
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| 359 | }
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| 360 | else
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| 361 | {
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| 362 | dprintf(("ERROR: GlobalUnlock invalid handle %x", hmem));
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| 363 | SetLastError(ERROR_INVALID_HANDLE);
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| 364 | locked=FALSE;
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| 365 | }
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| 366 | /* HeapUnlock(GetProcessHeap()); */
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| 367 | return locked;
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| 368 | }
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| 369 |
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| 370 |
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| 371 | /***********************************************************************
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| 372 | * GlobalHandle (KERNEL32.@)
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| 373 | * Returns the handle associated with the specified pointer.
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| 374 | *
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| 375 | * RETURNS
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| 376 | * Handle: Success
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| 377 | * NULL: Failure
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| 378 | */
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| 379 | HGLOBAL WINAPI GlobalHandle(
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| 380 | LPCVOID pmem /* [in] Pointer to global memory block */
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| 381 | ) {
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| 382 | HGLOBAL handle;
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| 383 | PGLOBAL32_INTERN maybe_intern;
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| 384 | LPCVOID test;
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| 385 |
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| 386 | dprintf(("KERNEL32: GlobalHandle %x", pmem));
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| 387 |
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| 388 | if (!pmem)
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| 389 | {
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| 390 | SetLastError( ERROR_INVALID_PARAMETER );
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| 391 | return 0;
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| 392 | }
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| 393 |
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| 394 | #ifdef __WIN32OS2__
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| 395 | handle = 0;
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| 396 |
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| 397 | /* note that if pmem is a pointer to a a block allocated by */
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| 398 | /* GlobalAlloc with GMEM_MOVEABLE then magic test in HeapValidate */
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| 399 | /* will fail. */
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| 400 | if (ISPOINTER(pmem)) {
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| 401 | if (HeapValidate( GetProcessHeap(), 0, pmem )) {
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| 402 | handle = (HGLOBAL)pmem; /* valid fixed block */
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| 403 | return handle;
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| 404 | }
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| 405 | handle = POINTER_TO_HANDLE(pmem);
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| 406 | } else
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| 407 | handle = (HGLOBAL)pmem;
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| 408 |
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| 409 | /* Now test handle either passed in or retrieved from pointer */
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| 410 | maybe_intern = HANDLE_TO_INTERN( handle );
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| 411 | if(IsBadReadPtr(maybe_intern, sizeof(GLOBAL32_INTERN))) {
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| 412 | SetLastError( ERROR_INVALID_HANDLE );
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| 413 | return 0;
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| 414 | }
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| 415 |
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| 416 | if (maybe_intern->Magic == MAGIC_GLOBAL_USED) {
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| 417 | test = maybe_intern->Pointer;
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| 418 | //SvL: -2 for 8 byte alignment
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| 419 | if (HeapValidate( GetProcessHeap(), 0, ((HGLOBAL *)test)-2 ) && /* obj(-handle) valid arena? */
|
|---|
| 420 | HeapValidate( GetProcessHeap(), 0, maybe_intern )) /* intern valid arena? */
|
|---|
| 421 | {
|
|---|
| 422 | return handle;
|
|---|
| 423 | }
|
|---|
| 424 | }
|
|---|
| 425 | handle = 0;
|
|---|
| 426 | SetLastError( ERROR_INVALID_HANDLE );
|
|---|
| 427 | #else
|
|---|
| 428 | __TRY
|
|---|
| 429 | {
|
|---|
| 430 | handle = 0;
|
|---|
| 431 |
|
|---|
| 432 | /* note that if pmem is a pointer to a a block allocated by */
|
|---|
| 433 | /* GlobalAlloc with GMEM_MOVEABLE then magic test in HeapValidate */
|
|---|
| 434 | /* will fail. */
|
|---|
| 435 | if (ISPOINTER(pmem)) {
|
|---|
| 436 | if (HeapValidate( GetProcessHeap(), 0, pmem )) {
|
|---|
| 437 | handle = (HGLOBAL)pmem; /* valid fixed block */
|
|---|
| 438 | break;
|
|---|
| 439 | }
|
|---|
| 440 | handle = POINTER_TO_HANDLE(pmem);
|
|---|
| 441 | } else
|
|---|
| 442 | handle = (HGLOBAL)pmem;
|
|---|
| 443 |
|
|---|
| 444 | /* Now test handle either passed in or retrieved from pointer */
|
|---|
| 445 | maybe_intern = HANDLE_TO_INTERN( handle );
|
|---|
| 446 | if (maybe_intern->Magic == MAGIC_GLOBAL_USED) {
|
|---|
| 447 | test = maybe_intern->Pointer;
|
|---|
| 448 | if (HeapValidate( GetProcessHeap(), 0, ((HGLOBAL *)test)-1 ) && /* obj(-handle) valid arena? */
|
|---|
| 449 | HeapValidate( GetProcessHeap(), 0, maybe_intern )) /* intern valid arena? */
|
|---|
| 450 | break; /* valid moveable block */
|
|---|
| 451 | }
|
|---|
| 452 | handle = 0;
|
|---|
| 453 | SetLastError( ERROR_INVALID_HANDLE );
|
|---|
| 454 | }
|
|---|
| 455 | __EXCEPT(page_fault)
|
|---|
| 456 | {
|
|---|
| 457 | SetLastError( ERROR_INVALID_HANDLE );
|
|---|
| 458 | return 0;
|
|---|
| 459 | }
|
|---|
| 460 | __ENDTRY
|
|---|
| 461 | #endif
|
|---|
| 462 | return handle;
|
|---|
| 463 | }
|
|---|
| 464 |
|
|---|
| 465 |
|
|---|
| 466 | /***********************************************************************
|
|---|
| 467 | * GlobalReAlloc (KERNEL32.@)
|
|---|
| 468 | * RETURNS
|
|---|
| 469 | * Handle: Success
|
|---|
| 470 | * NULL: Failure
|
|---|
| 471 | */
|
|---|
| 472 | HGLOBAL WINAPI GlobalReAlloc(
|
|---|
| 473 | HGLOBAL hmem, /* [in] Handle of global memory object */
|
|---|
| 474 | DWORD size, /* [in] New size of block */
|
|---|
| 475 | UINT flags /* [in] How to reallocate object */
|
|---|
| 476 | ) {
|
|---|
| 477 | LPVOID palloc;
|
|---|
| 478 | HGLOBAL hnew;
|
|---|
| 479 | PGLOBAL32_INTERN pintern;
|
|---|
| 480 | DWORD heap_flags = (flags & GMEM_ZEROINIT) ? HEAP_ZERO_MEMORY : 0;
|
|---|
| 481 |
|
|---|
| 482 | #ifdef __WIN32OS2__
|
|---|
| 483 | hmem = GlobalHandle((LPCVOID)hmem);
|
|---|
| 484 | #endif
|
|---|
| 485 |
|
|---|
| 486 | hnew = 0;
|
|---|
| 487 | /* HeapLock(heap); */
|
|---|
| 488 | if(flags & GMEM_MODIFY) /* modify flags */
|
|---|
| 489 | {
|
|---|
| 490 | if( ISPOINTER(hmem) && (flags & GMEM_MOVEABLE))
|
|---|
| 491 | {
|
|---|
| 492 | /* make a fixed block moveable
|
|---|
| 493 | * actually only NT is able to do this. But it's soo simple
|
|---|
| 494 | */
|
|---|
| 495 | if (hmem == 0)
|
|---|
| 496 | {
|
|---|
| 497 | dprintf(("ERROR: GlobalReAlloc32 with null handle!\n"));
|
|---|
| 498 | SetLastError( ERROR_NOACCESS );
|
|---|
| 499 | return 0;
|
|---|
| 500 | }
|
|---|
| 501 | size=HeapSize(GetProcessHeap(), 0, (LPVOID) hmem);
|
|---|
| 502 | hnew=GlobalAlloc( flags, size);
|
|---|
| 503 | palloc=GlobalLock(hnew);
|
|---|
| 504 | memcpy(palloc, (LPVOID) hmem, size);
|
|---|
| 505 | GlobalUnlock(hnew);
|
|---|
| 506 | GlobalFree(hmem);
|
|---|
| 507 | }
|
|---|
| 508 | else if( ISPOINTER(hmem) &&(flags & GMEM_DISCARDABLE))
|
|---|
| 509 | {
|
|---|
| 510 | /* change the flags to make our block "discardable" */
|
|---|
| 511 | pintern=HANDLE_TO_INTERN(hmem);
|
|---|
| 512 | pintern->Flags = pintern->Flags | (GMEM_DISCARDABLE >> 8);
|
|---|
| 513 | hnew=hmem;
|
|---|
| 514 | }
|
|---|
| 515 | else
|
|---|
| 516 | {
|
|---|
| 517 | SetLastError(ERROR_INVALID_PARAMETER);
|
|---|
| 518 | hnew = 0;
|
|---|
| 519 | }
|
|---|
| 520 | }
|
|---|
| 521 | else
|
|---|
| 522 | {
|
|---|
| 523 | if(ISPOINTER(hmem))
|
|---|
| 524 | {
|
|---|
| 525 | /* reallocate fixed memory */
|
|---|
| 526 | hnew=(HGLOBAL)HeapReAlloc(GetProcessHeap(), heap_flags, (LPVOID) hmem, size);
|
|---|
| 527 | }
|
|---|
| 528 | else
|
|---|
| 529 | {
|
|---|
| 530 | /* reallocate a moveable block */
|
|---|
| 531 | pintern=HANDLE_TO_INTERN(hmem);
|
|---|
| 532 |
|
|---|
| 533 | #if 0
|
|---|
| 534 | /* Apparently Windows doesn't care whether the handle is locked at this point */
|
|---|
| 535 | /* See also the same comment in GlobalFree() */
|
|---|
| 536 | if(pintern->LockCount>1) {
|
|---|
| 537 | ERR("handle 0x%08lx is still locked, cannot realloc!\n",(DWORD)hmem);
|
|---|
| 538 | SetLastError(ERROR_INVALID_HANDLE);
|
|---|
| 539 | } else
|
|---|
| 540 | #endif
|
|---|
| 541 | if(size!=0)
|
|---|
| 542 | {
|
|---|
| 543 | hnew=hmem;
|
|---|
| 544 | if(pintern->Pointer)
|
|---|
| 545 | {
|
|---|
| 546 | if((palloc = HeapReAlloc(GetProcessHeap(), heap_flags,
|
|---|
| 547 | (char *) pintern->Pointer-HGLOBAL_SIZE,
|
|---|
| 548 | size+HGLOBAL_SIZE)) == NULL)
|
|---|
| 549 | return 0; /* Block still valid */
|
|---|
| 550 | pintern->Pointer=(char *) palloc+HGLOBAL_SIZE;
|
|---|
| 551 | }
|
|---|
| 552 | else
|
|---|
| 553 | {
|
|---|
| 554 | if((palloc=HeapAlloc(GetProcessHeap(), heap_flags, size+HGLOBAL_SIZE))
|
|---|
| 555 | == NULL)
|
|---|
| 556 | return 0;
|
|---|
| 557 | *(HGLOBAL *)palloc=hmem;
|
|---|
| 558 | pintern->Pointer=(char *) palloc+HGLOBAL_SIZE;
|
|---|
| 559 | }
|
|---|
| 560 | }
|
|---|
| 561 | else
|
|---|
| 562 | {
|
|---|
| 563 | if(pintern->Pointer)
|
|---|
| 564 | {
|
|---|
| 565 | HeapFree(GetProcessHeap(), 0, (char *) pintern->Pointer-HGLOBAL_SIZE);
|
|---|
| 566 | pintern->Pointer=NULL;
|
|---|
| 567 | }
|
|---|
| 568 | }
|
|---|
| 569 | }
|
|---|
| 570 | }
|
|---|
| 571 | /* HeapUnlock(heap); */
|
|---|
| 572 | return hnew;
|
|---|
| 573 | }
|
|---|
| 574 |
|
|---|
| 575 |
|
|---|
| 576 | /***********************************************************************
|
|---|
| 577 | * GlobalFree (KERNEL32.@)
|
|---|
| 578 | * RETURNS
|
|---|
| 579 | * NULL: Success
|
|---|
| 580 | * Handle: Failure
|
|---|
| 581 | */
|
|---|
| 582 | HGLOBAL WINAPI GlobalFree(
|
|---|
| 583 | HGLOBAL hmem /* [in] Handle of global memory object */
|
|---|
| 584 | ) {
|
|---|
| 585 | PGLOBAL32_INTERN pintern;
|
|---|
| 586 | HGLOBAL hreturned = 0;
|
|---|
| 587 |
|
|---|
| 588 | dprintf(("KERNEL32: GlobalFree %x", hmem));
|
|---|
| 589 |
|
|---|
| 590 | /* verify lpMem address */
|
|---|
| 591 | if (hmem >= (HGLOBAL)ulMaxAddr || hmem < (HGLOBAL)0x10000)
|
|---|
| 592 | {
|
|---|
| 593 | dprintf(("GlobalFree ERROR BAD HEAP POINTER:%X\n", hmem));
|
|---|
| 594 | // DebugInt3();
|
|---|
| 595 | return 0;
|
|---|
| 596 | }
|
|---|
| 597 |
|
|---|
| 598 | if(ISPOINTER(hmem)) /* POINTER */
|
|---|
| 599 | {
|
|---|
| 600 | if(!HeapFree(GetProcessHeap(), 0, (LPVOID) hmem)) hmem = 0;
|
|---|
| 601 | }
|
|---|
| 602 | else /* HANDLE */
|
|---|
| 603 | {
|
|---|
| 604 | /* HeapLock(heap); */
|
|---|
| 605 | pintern=HANDLE_TO_INTERN(hmem);
|
|---|
| 606 |
|
|---|
| 607 | if(pintern->Magic==MAGIC_GLOBAL_USED)
|
|---|
| 608 | {
|
|---|
| 609 |
|
|---|
| 610 | /* WIN98 does not make this test. That is you can free a */
|
|---|
| 611 | /* block you have not unlocked. Go figure!! */
|
|---|
| 612 | /* if(pintern->LockCount!=0) */
|
|---|
| 613 | /* SetLastError(ERROR_INVALID_HANDLE); */
|
|---|
| 614 |
|
|---|
| 615 | if(pintern->Pointer)
|
|---|
| 616 | if(!HeapFree(GetProcessHeap(), 0, (char *)(pintern->Pointer)-HGLOBAL_SIZE))
|
|---|
| 617 | hreturned=hmem;
|
|---|
| 618 | if(!HeapFree(GetProcessHeap(), 0, pintern))
|
|---|
| 619 | hreturned=hmem;
|
|---|
| 620 | }
|
|---|
| 621 | /* HeapUnlock(heap); */
|
|---|
| 622 | }
|
|---|
| 623 | return hreturned;
|
|---|
| 624 | }
|
|---|
| 625 |
|
|---|
| 626 |
|
|---|
| 627 | /***********************************************************************
|
|---|
| 628 | * GlobalSize (KERNEL32.@)
|
|---|
| 629 | * RETURNS
|
|---|
| 630 | * Size in bytes of the global memory object
|
|---|
| 631 | * 0: Failure
|
|---|
| 632 | */
|
|---|
| 633 | DWORD WINAPI GlobalSize(
|
|---|
| 634 | HGLOBAL hmem /* [in] Handle of global memory object */
|
|---|
| 635 | ) {
|
|---|
| 636 | DWORD retval;
|
|---|
| 637 | PGLOBAL32_INTERN pintern;
|
|---|
| 638 |
|
|---|
| 639 | dprintf(("KERNEL32: GlobalSize %x", hmem));
|
|---|
| 640 |
|
|---|
| 641 | if(ISPOINTER(hmem))
|
|---|
| 642 | {
|
|---|
| 643 | retval=HeapSize(GetProcessHeap(), 0, (LPVOID) hmem);
|
|---|
| 644 | }
|
|---|
| 645 | else
|
|---|
| 646 | {
|
|---|
| 647 | /* HeapLock(heap); */
|
|---|
| 648 | pintern=HANDLE_TO_INTERN(hmem);
|
|---|
| 649 |
|
|---|
| 650 | if(pintern->Magic==MAGIC_GLOBAL_USED)
|
|---|
| 651 | {
|
|---|
| 652 | if (!pintern->Pointer) /* handle case of GlobalAlloc( ??,0) */
|
|---|
| 653 | return 0;
|
|---|
| 654 | retval=HeapSize(GetProcessHeap(), 0,
|
|---|
| 655 | (char *)(pintern->Pointer)-HGLOBAL_SIZE)-HGLOBAL_SIZE;
|
|---|
| 656 | //SvL: ???
|
|---|
| 657 | if (retval == 0xffffffff-HGLOBAL_SIZE) retval = 0;
|
|---|
| 658 | }
|
|---|
| 659 | else
|
|---|
| 660 | {
|
|---|
| 661 | dprintf(("ERROR: GlobalSize invalid handle %x", hmem));
|
|---|
| 662 | retval=0;
|
|---|
| 663 | }
|
|---|
| 664 | /* HeapUnlock(heap); */
|
|---|
| 665 | }
|
|---|
| 666 | /* HeapSize returns 0xffffffff on failure */
|
|---|
| 667 | if (retval == 0xffffffff) retval = 0;
|
|---|
| 668 | dprintf(("KERNEL32: GlobalSize %x = %d", hmem, retval));
|
|---|
| 669 | return retval;
|
|---|
| 670 | }
|
|---|
| 671 |
|
|---|
| 672 |
|
|---|
| 673 | /***********************************************************************
|
|---|
| 674 | * GlobalWire (KERNEL32.@)
|
|---|
| 675 | */
|
|---|
| 676 | LPVOID WINAPI GlobalWire(HGLOBAL hmem)
|
|---|
| 677 | {
|
|---|
| 678 | return GlobalLock( hmem );
|
|---|
| 679 | }
|
|---|
| 680 |
|
|---|
| 681 |
|
|---|
| 682 | /***********************************************************************
|
|---|
| 683 | * GlobalUnWire (KERNEL32.@)
|
|---|
| 684 | */
|
|---|
| 685 | BOOL WINAPI GlobalUnWire(HGLOBAL hmem)
|
|---|
| 686 | {
|
|---|
| 687 | return GlobalUnlock( hmem);
|
|---|
| 688 | }
|
|---|
| 689 |
|
|---|
| 690 |
|
|---|
| 691 | /***********************************************************************
|
|---|
| 692 | * GlobalFix (KERNEL32.@)
|
|---|
| 693 | */
|
|---|
| 694 | VOID WINAPI GlobalFix(HGLOBAL hmem)
|
|---|
| 695 | {
|
|---|
| 696 | GlobalLock( hmem );
|
|---|
| 697 | }
|
|---|
| 698 |
|
|---|
| 699 |
|
|---|
| 700 | /***********************************************************************
|
|---|
| 701 | * GlobalUnfix (KERNEL32.@)
|
|---|
| 702 | */
|
|---|
| 703 | VOID WINAPI GlobalUnfix(HGLOBAL hmem)
|
|---|
| 704 | {
|
|---|
| 705 | GlobalUnlock( hmem);
|
|---|
| 706 | }
|
|---|
| 707 |
|
|---|
| 708 |
|
|---|
| 709 | /***********************************************************************
|
|---|
| 710 | * GlobalFlags (KERNEL32.@)
|
|---|
| 711 | * Returns information about the specified global memory object
|
|---|
| 712 | *
|
|---|
| 713 | * NOTES
|
|---|
| 714 | * Should this return GMEM_INVALID_HANDLE on invalid handle?
|
|---|
| 715 | *
|
|---|
| 716 | * RETURNS
|
|---|
| 717 | * Value specifying allocation flags and lock count
|
|---|
| 718 | * GMEM_INVALID_HANDLE: Failure
|
|---|
| 719 | */
|
|---|
| 720 | UINT WINAPI GlobalFlags(
|
|---|
| 721 | HGLOBAL hmem /* [in] Handle to global memory object */
|
|---|
| 722 | ) {
|
|---|
| 723 | DWORD retval;
|
|---|
| 724 | PGLOBAL32_INTERN pintern;
|
|---|
| 725 |
|
|---|
| 726 | dprintf(("KERNEL32: GlobalFlags %x", hmem));
|
|---|
| 727 |
|
|---|
| 728 | if(ISPOINTER(hmem))
|
|---|
| 729 | {
|
|---|
| 730 | retval=0;
|
|---|
| 731 | }
|
|---|
| 732 | else
|
|---|
| 733 | {
|
|---|
| 734 | /* HeapLock(GetProcessHeap()); */
|
|---|
| 735 | pintern=HANDLE_TO_INTERN(hmem);
|
|---|
| 736 | if(pintern->Magic==MAGIC_GLOBAL_USED)
|
|---|
| 737 | {
|
|---|
| 738 | retval=pintern->LockCount + (pintern->Flags<<8);
|
|---|
| 739 | if(pintern->Pointer==0)
|
|---|
| 740 | retval|= GMEM_DISCARDED;
|
|---|
| 741 | }
|
|---|
| 742 | else
|
|---|
| 743 | {
|
|---|
| 744 | dprintf(("ERROR: GlobalFlags invalid handle %x", hmem));
|
|---|
| 745 | retval=0;
|
|---|
| 746 | }
|
|---|
| 747 | /* HeapUnlock(GetProcessHeap()); */
|
|---|
| 748 | }
|
|---|
| 749 | return retval;
|
|---|
| 750 | }
|
|---|
| 751 |
|
|---|
| 752 |
|
|---|
| 753 | /***********************************************************************
|
|---|
| 754 | * GlobalCompact (KERNEL32.@)
|
|---|
| 755 | */
|
|---|
| 756 | DWORD WINAPI GlobalCompact( DWORD minfree )
|
|---|
| 757 | {
|
|---|
| 758 | dprintf(("KERNEL32: GlobalCompact %d OBSOLETE", minfree));
|
|---|
| 759 |
|
|---|
| 760 | return 0; /* GlobalCompact does nothing in Win32 */
|
|---|
| 761 | }
|
|---|
| 762 | #else
|
|---|
| 763 | //******************************************************************************
|
|---|
| 764 | #ifdef DEBUG
|
|---|
| 765 | static ULONG totalGlobalAlloc = 0;
|
|---|
| 766 | #endif
|
|---|
| 767 | //******************************************************************************
|
|---|
| 768 | HGLOBAL WIN32API GlobalAlloc(UINT fuFlags, DWORD dwBytes)
|
|---|
| 769 | {
|
|---|
| 770 | HGLOBAL ret;
|
|---|
| 771 |
|
|---|
| 772 | ret = O32_GlobalAlloc(fuFlags, dwBytes);
|
|---|
| 773 | #ifdef DEBUG
|
|---|
| 774 | totalGlobalAlloc += dwBytes;
|
|---|
| 775 | #endif
|
|---|
| 776 | dprintf(("KERNEL32: GlobalAlloc %x %d returned %x (total %x)", fuFlags, dwBytes, ret, totalGlobalAlloc));
|
|---|
| 777 | return ret;
|
|---|
| 778 | }
|
|---|
| 779 | //******************************************************************************
|
|---|
| 780 | //******************************************************************************
|
|---|
| 781 | HGLOBAL WIN32API GlobalFree( HGLOBAL arg1)
|
|---|
| 782 | {
|
|---|
| 783 | HGLOBAL ret;
|
|---|
| 784 |
|
|---|
| 785 | #ifdef DEBUG
|
|---|
| 786 | totalGlobalAlloc -= O32_GlobalSize(arg1);
|
|---|
| 787 | #endif
|
|---|
| 788 | ret = O32_GlobalFree(arg1);
|
|---|
| 789 | dprintf(("KERNEL32: GlobalFree %x returned %x (lasterr=%x) total %x", arg1, ret, GetLastError(), totalGlobalAlloc));
|
|---|
| 790 | return ret;
|
|---|
| 791 | }
|
|---|
| 792 | //******************************************************************************
|
|---|
| 793 | //******************************************************************************
|
|---|
| 794 | HGLOBAL WIN32API GlobalHandle( LPCVOID lpMem)
|
|---|
| 795 | {
|
|---|
| 796 | dprintf(("KERNEL32: GlobalHandle %x", lpMem));
|
|---|
| 797 |
|
|---|
| 798 | return O32_GlobalHandle((LPVOID)lpMem);
|
|---|
| 799 | }
|
|---|
| 800 | //******************************************************************************
|
|---|
| 801 | //******************************************************************************
|
|---|
| 802 | UINT WIN32API GlobalFlags(HGLOBAL hMem)
|
|---|
| 803 | {
|
|---|
| 804 | dprintf(("KERNEL32: GlobalFlags %x", hMem));
|
|---|
| 805 |
|
|---|
| 806 | return O32_GlobalFlags(hMem);
|
|---|
| 807 | }
|
|---|
| 808 | //******************************************************************************
|
|---|
| 809 | //******************************************************************************
|
|---|
| 810 | DWORD WIN32API GlobalCompact(DWORD dwMinFree)
|
|---|
| 811 | {
|
|---|
| 812 | dprintf(("KERNEL32: GlobalCompact, OBSOLETE - stub\n"));
|
|---|
| 813 |
|
|---|
| 814 | return(0);
|
|---|
| 815 | }
|
|---|
| 816 | //******************************************************************************
|
|---|
| 817 | //******************************************************************************
|
|---|
| 818 | PVOID WIN32API GlobalLock(HGLOBAL hMem)
|
|---|
| 819 | {
|
|---|
| 820 | PVOID ret;
|
|---|
| 821 |
|
|---|
| 822 | ret = O32_GlobalLock(hMem);
|
|---|
| 823 | dprintf(("KERNEL32: GlobalLock %x returned %x", hMem, ret));
|
|---|
| 824 | return ret;
|
|---|
| 825 | }
|
|---|
| 826 | //******************************************************************************
|
|---|
| 827 | //******************************************************************************
|
|---|
| 828 | HGLOBAL WIN32API GlobalReAlloc(HGLOBAL arg1, DWORD arg2, UINT arg3)
|
|---|
| 829 | {
|
|---|
| 830 | dprintf(("KERNEL32: GlobalReAlloc %x %x %d", arg1, arg2, arg3));
|
|---|
| 831 |
|
|---|
| 832 | return O32_GlobalReAlloc(arg1, arg2, arg3);
|
|---|
| 833 | }
|
|---|
| 834 | //******************************************************************************
|
|---|
| 835 | //******************************************************************************
|
|---|
| 836 | DWORD WIN32API GlobalSize(HGLOBAL arg1)
|
|---|
| 837 | {
|
|---|
| 838 | dprintf(("KERNEL32: GlobalSize\n"));
|
|---|
| 839 |
|
|---|
| 840 | return O32_GlobalSize(arg1);
|
|---|
| 841 | }
|
|---|
| 842 | //******************************************************************************
|
|---|
| 843 | //******************************************************************************
|
|---|
| 844 | BOOL WIN32API GlobalUnlock(HGLOBAL arg1)
|
|---|
| 845 | {
|
|---|
| 846 | dprintf(("KERNEL32: GlobalUnlock\n"));
|
|---|
| 847 |
|
|---|
| 848 | return O32_GlobalUnlock(arg1);
|
|---|
| 849 | }
|
|---|
| 850 | /***********************************************************************
|
|---|
| 851 | * GlobalWire
|
|---|
| 852 | *
|
|---|
| 853 | * The GlobalWire function is obsolete. It is provided only for compatibility
|
|---|
| 854 | * with 16-bit versions of Windows. Applications that need to lock a global
|
|---|
| 855 | * memory object should use the GlobalLock and GlobalUnlock functions.
|
|---|
| 856 | *
|
|---|
| 857 | */
|
|---|
| 858 | LPVOID WIN32API GlobalWire(HGLOBAL hmem)
|
|---|
| 859 | {
|
|---|
| 860 | return GlobalLock( hmem );
|
|---|
| 861 | }
|
|---|
| 862 | /***********************************************************************
|
|---|
| 863 | * GlobalUnWire
|
|---|
| 864 | *
|
|---|
| 865 | * The GlobalUnWire function is obsolete. It is provided only for compatibility
|
|---|
| 866 | * with 16-bit versions of Windows. Applications that need to lock a global
|
|---|
| 867 | * memory object should use the GlobalLock and GlobalUnlock functions.
|
|---|
| 868 | *
|
|---|
| 869 | */
|
|---|
| 870 | BOOL WIN32API GlobalUnWire(HGLOBAL hmem)
|
|---|
| 871 | {
|
|---|
| 872 | return GlobalUnlock( hmem);
|
|---|
| 873 | }
|
|---|
| 874 | //******************************************************************************
|
|---|
| 875 | //******************************************************************************
|
|---|
| 876 | HGLOBAL WIN32API GlobalDiscard(HGLOBAL hGlobal)
|
|---|
| 877 | {
|
|---|
| 878 | dprintf(("KERNEL32: GlobalDiscard %x", hGlobal));
|
|---|
| 879 |
|
|---|
| 880 | return O32_GlobalDiscard(hGlobal);
|
|---|
| 881 | }
|
|---|
| 882 | /***********************************************************************
|
|---|
| 883 | * GlobalFix (KERNEL32.@)
|
|---|
| 884 | */
|
|---|
| 885 | VOID WINAPI GlobalFix(HGLOBAL hmem)
|
|---|
| 886 | {
|
|---|
| 887 | GlobalLock( hmem );
|
|---|
| 888 | }
|
|---|
| 889 | /***********************************************************************
|
|---|
| 890 | * GlobalUnfix (KERNEL32.@)
|
|---|
| 891 | */
|
|---|
| 892 | VOID WINAPI GlobalUnfix(HGLOBAL hmem)
|
|---|
| 893 | {
|
|---|
| 894 | GlobalUnlock( hmem);
|
|---|
| 895 | }
|
|---|
| 896 | #endif
|
|---|
| 897 | //******************************************************************************
|
|---|
| 898 | //******************************************************************************
|
|---|
| 899 | HLOCAL WIN32API LocalAlloc(UINT fuFlags, DWORD cbBytes)
|
|---|
| 900 | {
|
|---|
| 901 | HLOCAL hLocal;
|
|---|
| 902 |
|
|---|
| 903 | // Check flags
|
|---|
| 904 | if(fuFlags & (~(LMEM_MOVEABLE | LMEM_DISCARDABLE | LMEM_NOCOMPACT |
|
|---|
| 905 | LMEM_NODISCARD | LMEM_ZEROINIT)))
|
|---|
| 906 | {
|
|---|
| 907 | dprintf(("LocalAlloc %x %x: INVALID flags!", fuFlags, cbBytes));
|
|---|
| 908 | SetLastError(ERROR_INVALID_PARAMETER);
|
|---|
| 909 | return 0;
|
|---|
| 910 | }
|
|---|
| 911 | // Note: local & global flags are the same (the ones used here), so no need for conversion
|
|---|
| 912 | hLocal = GlobalAlloc(fuFlags, cbBytes);
|
|---|
| 913 | dprintf(("KERNEL32: LocalAlloc flags %X, size %d returned %X", fuFlags, cbBytes, hLocal));
|
|---|
| 914 | return hLocal;
|
|---|
| 915 | }
|
|---|
| 916 | //******************************************************************************
|
|---|
| 917 | //******************************************************************************
|
|---|
| 918 | UINT WIN32API LocalFlags(HLOCAL hMem)
|
|---|
| 919 | {
|
|---|
| 920 | UINT ret, retG;
|
|---|
| 921 | dprintf(("KERNEL32: LocalFlags %X\n", hMem));
|
|---|
| 922 |
|
|---|
| 923 | retG = GlobalFlags(hMem);
|
|---|
| 924 |
|
|---|
| 925 | if(retG == GMEM_INVALID_HANDLE)
|
|---|
| 926 | {
|
|---|
| 927 | return LMEM_INVALID_HANDLE;
|
|---|
| 928 | }
|
|---|
| 929 | // Low byte holds lock count.
|
|---|
| 930 | // Hi byte of low word contains some flags.
|
|---|
| 931 | ret = retG & 0xff; // Keep lock count.
|
|---|
| 932 | if (retG & GMEM_DISCARDABLE) ret |= LMEM_DISCARDABLE;
|
|---|
| 933 | if (retG & GMEM_DISCARDED) ret |= LMEM_DISCARDED;
|
|---|
| 934 |
|
|---|
| 935 | return ret;
|
|---|
| 936 | }
|
|---|
| 937 | //******************************************************************************
|
|---|
| 938 | //******************************************************************************
|
|---|
| 939 | HLOCAL WIN32API LocalFree(HLOCAL hMem)
|
|---|
| 940 | {
|
|---|
| 941 | dprintf(("KERNEL32: LocalFree %X", hMem));
|
|---|
| 942 |
|
|---|
| 943 | return GlobalFree(hMem);
|
|---|
| 944 | }
|
|---|
| 945 | //******************************************************************************
|
|---|
| 946 | //******************************************************************************
|
|---|
| 947 | HLOCAL WIN32API LocalHandle(PCVOID lpMem)
|
|---|
| 948 | {
|
|---|
| 949 | dprintf(("KERNEL32: LocalHandle %x", lpMem));
|
|---|
| 950 |
|
|---|
| 951 | return GlobalHandle(lpMem);
|
|---|
| 952 | }
|
|---|
| 953 | //******************************************************************************
|
|---|
| 954 | //******************************************************************************
|
|---|
| 955 | BOOL WIN32API LocalUnlock(HLOCAL hMem)
|
|---|
| 956 | {
|
|---|
| 957 | dprintf(("KERNEL32: LocalUnlock %X", hMem));
|
|---|
| 958 |
|
|---|
| 959 | return GlobalUnlock(hMem);
|
|---|
| 960 | }
|
|---|
| 961 | //******************************************************************************
|
|---|
| 962 | //TODO: cbBytes==0 && fuFlags & LMEM_MOVEABLE not handled!!
|
|---|
| 963 | //******************************************************************************
|
|---|
| 964 | HLOCAL WIN32API LocalReAlloc(HLOCAL hMem, DWORD cbBytes, UINT fuFlags)
|
|---|
| 965 | {
|
|---|
| 966 | HLOCAL hLocalNew, hLocalOld;
|
|---|
| 967 | LPVOID lpMem, lpMemOld;
|
|---|
| 968 | DWORD cbOldSize;
|
|---|
| 969 |
|
|---|
| 970 | dprintf(("KERNEL32: LocalReAlloc %X %d %X\n", hMem, cbBytes, fuFlags));
|
|---|
| 971 |
|
|---|
| 972 | // Check flags
|
|---|
| 973 | if(fuFlags & (~(LMEM_MOVEABLE | LMEM_DISCARDABLE | LMEM_NOCOMPACT |
|
|---|
| 974 | LMEM_MODIFY | LMEM_ZEROINIT)))
|
|---|
| 975 | {
|
|---|
| 976 | dprintf(("LocalAlloc %x %x: INVALID flags!", fuFlags, cbBytes));
|
|---|
| 977 | SetLastError(ERROR_INVALID_PARAMETER);
|
|---|
| 978 | return 0;
|
|---|
| 979 | }
|
|---|
| 980 |
|
|---|
| 981 | //SvL: 8-8-'98: Notepad bugfix (assumes address is identical when new size < old size)
|
|---|
| 982 | cbOldSize = LocalSize(hMem);
|
|---|
| 983 | if(cbOldSize > cbBytes)
|
|---|
| 984 | return hMem;
|
|---|
| 985 |
|
|---|
| 986 | return GlobalReAlloc(hMem, cbBytes, fuFlags);
|
|---|
| 987 | }
|
|---|
| 988 | //******************************************************************************
|
|---|
| 989 | //******************************************************************************
|
|---|
| 990 | UINT WIN32API LocalSize(HLOCAL hMem)
|
|---|
| 991 | {
|
|---|
| 992 | dprintf(("KERNEL32: LocalSize %X", hMem));
|
|---|
| 993 |
|
|---|
| 994 | return GlobalSize(hMem);
|
|---|
| 995 | }
|
|---|
| 996 | //******************************************************************************
|
|---|
| 997 | //******************************************************************************
|
|---|
| 998 | PVOID WIN32API LocalLock(HLOCAL hMem)
|
|---|
| 999 | {
|
|---|
| 1000 | dprintf(("KERNEL32: LocalLock %X\n", hMem));
|
|---|
| 1001 |
|
|---|
| 1002 | return GlobalLock(hMem);
|
|---|
| 1003 | }
|
|---|
| 1004 | //******************************************************************************
|
|---|
| 1005 | //* this function is here for completeness, some stupid software requires it.
|
|---|
| 1006 | //******************************************************************************
|
|---|
| 1007 | UINT WIN32API LocalShrink(HLOCAL hMem, UINT cbNewSize)
|
|---|
| 1008 | {
|
|---|
| 1009 | dprintf(("KERNEL32: LocalShrink %X, %08xh - OBSOLETE", hMem, cbNewSize));
|
|---|
| 1010 |
|
|---|
| 1011 | return cbNewSize;
|
|---|
| 1012 | }
|
|---|
| 1013 | //******************************************************************************
|
|---|
| 1014 | //* this function is here for completeness, mIRC/32 requires it.
|
|---|
| 1015 | //******************************************************************************
|
|---|
| 1016 | UINT WIN32API LocalCompact(UINT cbNewSize)
|
|---|
| 1017 | {
|
|---|
| 1018 | dprintf(("KERNEL32: LocalCompact %08xh - OBSOLETE", cbNewSize));
|
|---|
| 1019 |
|
|---|
| 1020 | return cbNewSize;
|
|---|
| 1021 | }
|
|---|
| 1022 | //******************************************************************************
|
|---|
| 1023 | //******************************************************************************
|
|---|
