1389 lines
40 KiB
C
1389 lines
40 KiB
C
/*
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* Win32 heap functions
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*
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* Copyright 1995, 1996 Alexandre Julliard
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* Copyright 1996 Huw Davies
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* Copyright 1998 Ulrich Weigand
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <assert.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <time.h>
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#ifdef HAVE_SYS_PARAM_H
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#include <sys/param.h>
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#endif
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#ifdef HAVE_SYS_SYSCTL_H
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#include <sys/sysctl.h>
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#endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#ifdef sun
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/* FIXME: Unfortunately swapctl can't be used with largefile.... */
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# undef _FILE_OFFSET_BITS
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# define _FILE_OFFSET_BITS 32
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# ifdef HAVE_SYS_RESOURCE_H
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# include <sys/resource.h>
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# endif
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# ifdef HAVE_SYS_STAT_H
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# include <sys/stat.h>
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# endif
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# include <sys/swap.h>
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#endif
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#include "windef.h"
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#include "winbase.h"
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#include "winerror.h"
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#include "winnt.h"
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#include "winternl.h"
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#include "excpt.h"
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#include "wine/exception.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(heap);
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/* address where we try to map the system heap */
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#define SYSTEM_HEAP_BASE ((void*)0x80000000)
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#define SYSTEM_HEAP_SIZE 0x1000000 /* Default heap size = 16Mb */
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static HANDLE systemHeap; /* globally shared heap */
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/***********************************************************************
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* HEAP_CreateSystemHeap
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*
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* Create the system heap.
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*/
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inline static HANDLE HEAP_CreateSystemHeap(void)
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{
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int created;
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void *base;
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HANDLE map, event;
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/* create the system heap event first */
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event = CreateEventA( NULL, TRUE, FALSE, "__wine_system_heap_event" );
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if (!(map = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, SEC_COMMIT | PAGE_READWRITE,
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0, SYSTEM_HEAP_SIZE, "__wine_system_heap" ))) return 0;
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created = (GetLastError() != ERROR_ALREADY_EXISTS);
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if (!(base = MapViewOfFileEx( map, FILE_MAP_ALL_ACCESS, 0, 0, 0, SYSTEM_HEAP_BASE )))
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{
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/* pre-defined address not available */
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ERR( "system heap base address %p not available\n", SYSTEM_HEAP_BASE );
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return 0;
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}
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if (created) /* newly created heap */
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{
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systemHeap = RtlCreateHeap( HEAP_SHARED, base, SYSTEM_HEAP_SIZE,
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SYSTEM_HEAP_SIZE, NULL, NULL );
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SetEvent( event );
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}
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else
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{
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/* wait for the heap to be initialized */
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WaitForSingleObject( event, INFINITE );
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systemHeap = (HANDLE)base;
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}
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CloseHandle( map );
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return systemHeap;
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}
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/***********************************************************************
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* HeapCreate (KERNEL32.@)
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*
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* Create a heap object.
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*
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* RETURNS
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* Handle of heap: Success
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* NULL: Failure
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*/
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HANDLE WINAPI HeapCreate(
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DWORD flags, /* [in] Heap allocation flag */
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SIZE_T initialSize, /* [in] Initial heap size */
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SIZE_T maxSize /* [in] Maximum heap size */
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) {
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HANDLE ret;
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if ( flags & HEAP_SHARED )
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{
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if (!systemHeap) HEAP_CreateSystemHeap();
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else WARN( "Shared Heap requested, returning system heap.\n" );
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ret = systemHeap;
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}
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else
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{
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ret = RtlCreateHeap( flags, NULL, maxSize, initialSize, NULL, NULL );
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if (!ret) SetLastError( ERROR_NOT_ENOUGH_MEMORY );
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}
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return ret;
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}
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/***********************************************************************
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* HeapDestroy (KERNEL32.@)
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*
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* Destroy a heap object.
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*
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* RETURNS
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* TRUE: Success
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* FALSE: Failure
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*/
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BOOL WINAPI HeapDestroy( HANDLE heap /* [in] Handle of heap */ )
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{
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if (heap == systemHeap)
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{
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WARN( "attempt to destroy system heap, returning TRUE!\n" );
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return TRUE;
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}
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if (!RtlDestroyHeap( heap )) return TRUE;
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SetLastError( ERROR_INVALID_HANDLE );
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return FALSE;
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}
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/***********************************************************************
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* HeapCompact (KERNEL32.@)
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*/
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SIZE_T WINAPI HeapCompact( HANDLE heap, DWORD flags )
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{
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return RtlCompactHeap( heap, flags );
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}
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/***********************************************************************
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* HeapValidate (KERNEL32.@)
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* Validates a specified heap.
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*
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* NOTES
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* Flags is ignored.
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*
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* RETURNS
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* TRUE: Success
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* FALSE: Failure
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*/
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BOOL WINAPI HeapValidate(
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HANDLE heap, /* [in] Handle to the heap */
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DWORD flags, /* [in] Bit flags that control access during operation */
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LPCVOID block /* [in] Optional pointer to memory block to validate */
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) {
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return RtlValidateHeap( heap, flags, block );
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}
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/***********************************************************************
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* HeapWalk (KERNEL32.@)
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* Enumerates the memory blocks in a specified heap.
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*
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* TODO
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* - handling of PROCESS_HEAP_ENTRY_MOVEABLE and
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* PROCESS_HEAP_ENTRY_DDESHARE (needs heap.c support)
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*
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* RETURNS
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* TRUE: Success
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* FALSE: Failure
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*/
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BOOL WINAPI HeapWalk(
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HANDLE heap, /* [in] Handle to heap to enumerate */
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LPPROCESS_HEAP_ENTRY entry /* [out] Pointer to structure of enumeration info */
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) {
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NTSTATUS ret = RtlWalkHeap( heap, entry );
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if (ret) SetLastError( RtlNtStatusToDosError(ret) );
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return !ret;
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}
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/***********************************************************************
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* HeapLock (KERNEL32.@)
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* Attempts to acquire the critical section object for a specified heap.
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*
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* RETURNS
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* TRUE: Success
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* FALSE: Failure
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*/
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BOOL WINAPI HeapLock(
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HANDLE heap /* [in] Handle of heap to lock for exclusive access */
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) {
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return RtlLockHeap( heap );
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}
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/***********************************************************************
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* HeapUnlock (KERNEL32.@)
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* Releases ownership of the critical section object.
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*
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* RETURNS
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* TRUE: Success
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* FALSE: Failure
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*/
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BOOL WINAPI HeapUnlock(
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HANDLE heap /* [in] Handle to the heap to unlock */
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) {
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return RtlUnlockHeap( heap );
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}
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/***********************************************************************
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* GetProcessHeap (KERNEL32.@)
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*/
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HANDLE WINAPI GetProcessHeap(void)
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{
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return NtCurrentTeb()->Peb->ProcessHeap;
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}
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/***********************************************************************
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* GetProcessHeaps (KERNEL32.@)
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*/
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DWORD WINAPI GetProcessHeaps( DWORD count, HANDLE *heaps )
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{
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return RtlGetProcessHeaps( count, heaps );
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}
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/* These are needed so that we can call the functions from inside kernel itself */
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/***********************************************************************
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* HeapAlloc (KERNEL32.@)
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*/
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LPVOID WINAPI HeapAlloc( HANDLE heap, DWORD flags, SIZE_T size )
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{
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return RtlAllocateHeap( heap, flags, size );
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}
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BOOL WINAPI HeapFree( HANDLE heap, DWORD flags, LPVOID ptr )
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{
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return RtlFreeHeap( heap, flags, ptr );
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}
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LPVOID WINAPI HeapReAlloc( HANDLE heap, DWORD flags, LPVOID ptr, SIZE_T size )
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{
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return RtlReAllocateHeap( heap, flags, ptr, size );
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}
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SIZE_T WINAPI HeapSize( HANDLE heap, DWORD flags, LPVOID ptr )
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{
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return RtlSizeHeap( heap, flags, ptr );
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}
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BOOL WINAPI HeapSetInformation( HANDLE heap, HEAP_INFORMATION_CLASS infoclass, PVOID info, SIZE_T size)
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{
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FIXME("%p %d %p %ld\n", heap, infoclass, info, size );
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return TRUE;
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}
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/*
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* Win32 Global heap functions (GlobalXXX).
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* These functions included in Win32 for compatibility with 16 bit Windows
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* Especially the moveable blocks and handles are oldish.
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* But the ability to directly allocate memory with GPTR and LPTR is widely
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* used.
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*
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* The handle stuff looks horrible, but it's implemented almost like Win95
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* does it.
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*
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*/
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#define MAGIC_GLOBAL_USED 0x5342
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#define HANDLE_TO_INTERN(h) ((PGLOBAL32_INTERN)(((char *)(h))-2))
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#define INTERN_TO_HANDLE(i) ((HGLOBAL) &((i)->Pointer))
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#define POINTER_TO_HANDLE(p) (*(((const HGLOBAL *)(p))-2))
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#define ISHANDLE(h) (((ULONG_PTR)(h)&2)!=0)
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#define ISPOINTER(h) (((ULONG_PTR)(h)&2)==0)
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/* align the storage needed for the HGLOBAL on an 8byte boundary thus
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* GlobalAlloc/GlobalReAlloc'ing with GMEM_MOVEABLE of memory with
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* size = 8*k, where k=1,2,3,... alloc's exactly the given size.
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* The Minolta DiMAGE Image Viewer heavily relies on this, corrupting
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* the output jpeg's > 1 MB if not */
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#define HGLOBAL_STORAGE 8 /* sizeof(HGLOBAL)*2 */
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#include "pshpack1.h"
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typedef struct __GLOBAL32_INTERN
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{
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WORD Magic;
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LPVOID Pointer;
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BYTE Flags;
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BYTE LockCount;
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} GLOBAL32_INTERN, *PGLOBAL32_INTERN;
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#include "poppack.h"
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/***********************************************************************
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* GlobalAlloc (KERNEL32.@)
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*
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* Allocate a global memory object.
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*
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* RETURNS
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* Handle: Success
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* NULL: Failure
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*/
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HGLOBAL WINAPI GlobalAlloc(
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UINT flags, /* [in] Object allocation attributes */
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SIZE_T size /* [in] Number of bytes to allocate */
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) {
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PGLOBAL32_INTERN pintern;
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DWORD hpflags;
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LPVOID palloc;
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if(flags&GMEM_ZEROINIT)
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hpflags=HEAP_ZERO_MEMORY;
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else
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hpflags=0;
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TRACE("() flags=%04x\n", flags );
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if((flags & GMEM_MOVEABLE)==0) /* POINTER */
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{
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palloc=HeapAlloc(GetProcessHeap(), hpflags, size);
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return (HGLOBAL) palloc;
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}
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else /* HANDLE */
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{
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RtlLockHeap(GetProcessHeap());
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pintern = HeapAlloc(GetProcessHeap(), 0, sizeof(GLOBAL32_INTERN));
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if (pintern)
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{
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pintern->Magic = MAGIC_GLOBAL_USED;
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pintern->Flags = flags >> 8;
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pintern->LockCount = 0;
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if (size)
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{
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palloc = HeapAlloc(GetProcessHeap(), hpflags, size+HGLOBAL_STORAGE);
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if (!palloc)
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{
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HeapFree(GetProcessHeap(), 0, pintern);
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pintern = NULL;
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}
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else
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{
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*(HGLOBAL *)palloc = INTERN_TO_HANDLE(pintern);
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pintern->Pointer = (char *)palloc + HGLOBAL_STORAGE;
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}
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}
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else
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pintern->Pointer = NULL;
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}
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RtlUnlockHeap(GetProcessHeap());
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return pintern ? INTERN_TO_HANDLE(pintern) : 0;
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}
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}
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/***********************************************************************
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* GlobalLock (KERNEL32.@)
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*
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* Lock a global memory object and return a pointer to first byte of the memory
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*
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* PARAMS
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* hmem [I] Handle of the global memory object
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*
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* RETURNS
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* Success: Pointer to first byte of the memory block
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* Failure: NULL
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*
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* NOTES
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* When the handle is invalid, last error is set to ERROR_INVALID_HANDLE
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*
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*/
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LPVOID WINAPI GlobalLock(HGLOBAL hmem)
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{
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PGLOBAL32_INTERN pintern;
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LPVOID palloc;
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if (ISPOINTER(hmem))
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return IsBadReadPtr(hmem, 1) ? NULL : hmem;
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RtlLockHeap(GetProcessHeap());
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__TRY
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{
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pintern = HANDLE_TO_INTERN(hmem);
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if (pintern->Magic == MAGIC_GLOBAL_USED)
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{
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palloc = pintern->Pointer;
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if (!pintern->Pointer)
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SetLastError(ERROR_DISCARDED);
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else if (pintern->LockCount < GMEM_LOCKCOUNT)
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pintern->LockCount++;
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}
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else
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{
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WARN("invalid handle %p (Magic: 0x%04x)\n", hmem, pintern->Magic);
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palloc = NULL;
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SetLastError(ERROR_INVALID_HANDLE);
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}
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}
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__EXCEPT_PAGE_FAULT
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{
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WARN("(%p): Page fault occurred ! Caused by bug ?\n", hmem);
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palloc = NULL;
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SetLastError(ERROR_INVALID_HANDLE);
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}
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__ENDTRY
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RtlUnlockHeap(GetProcessHeap());
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return palloc;
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}
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|
|
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/***********************************************************************
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* GlobalUnlock (KERNEL32.@)
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*
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* Unlock a global memory object.
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*
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* PARAMS
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* hmem [I] Handle of the global memory object
|
|
*
|
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* RETURNS
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* Success: Object is still locked
|
|
* Failure: FALSE (The Object is unlocked)
|
|
*
|
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* NOTES
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* When the handle is invalid, last error is set to ERROR_INVALID_HANDLE
|
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*
|
|
*/
|
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BOOL WINAPI GlobalUnlock(HGLOBAL hmem)
|
|
{
|
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PGLOBAL32_INTERN pintern;
|
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BOOL locked;
|
|
|
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if (ISPOINTER(hmem)) return FALSE;
|
|
|
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RtlLockHeap(GetProcessHeap());
|
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__TRY
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{
|
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pintern=HANDLE_TO_INTERN(hmem);
|
|
if(pintern->Magic==MAGIC_GLOBAL_USED)
|
|
{
|
|
if(pintern->LockCount)
|
|
{
|
|
pintern->LockCount--;
|
|
locked = (pintern->LockCount != 0);
|
|
if (!locked) SetLastError(NO_ERROR);
|
|
}
|
|
else
|
|
{
|
|
WARN("%p not locked\n", hmem);
|
|
SetLastError(ERROR_NOT_LOCKED);
|
|
locked = FALSE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
WARN("invalid handle %p (Magic: 0x%04x)\n", hmem, pintern->Magic);
|
|
SetLastError(ERROR_INVALID_HANDLE);
|
|
locked=FALSE;
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
WARN("(%p): Page fault occurred ! Caused by bug ?\n", hmem);
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
locked=FALSE;
|
|
}
|
|
__ENDTRY
|
|
RtlUnlockHeap(GetProcessHeap());
|
|
return locked;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalHandle (KERNEL32.@)
|
|
*
|
|
* Get the handle associated with the pointer to a global memory block.
|
|
*
|
|
* RETURNS
|
|
* Handle: Success
|
|
* NULL: Failure
|
|
*/
|
|
HGLOBAL WINAPI GlobalHandle(
|
|
LPCVOID pmem /* [in] Pointer to global memory block */
|
|
) {
|
|
HGLOBAL handle;
|
|
PGLOBAL32_INTERN maybe_intern;
|
|
LPCVOID test;
|
|
|
|
if (!pmem)
|
|
{
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
return 0;
|
|
}
|
|
|
|
RtlLockHeap(GetProcessHeap());
|
|
__TRY
|
|
{
|
|
handle = 0;
|
|
|
|
/* note that if pmem is a pointer to a block allocated by */
|
|
/* GlobalAlloc with GMEM_MOVEABLE then magic test in HeapValidate */
|
|
/* will fail. */
|
|
if (ISPOINTER(pmem)) {
|
|
if (HeapValidate( GetProcessHeap(), 0, pmem )) {
|
|
handle = (HGLOBAL)pmem; /* valid fixed block */
|
|
break;
|
|
}
|
|
handle = POINTER_TO_HANDLE(pmem);
|
|
} else
|
|
handle = (HGLOBAL)pmem;
|
|
|
|
/* Now test handle either passed in or retrieved from pointer */
|
|
maybe_intern = HANDLE_TO_INTERN( handle );
|
|
if (maybe_intern->Magic == MAGIC_GLOBAL_USED) {
|
|
test = maybe_intern->Pointer;
|
|
if (HeapValidate( GetProcessHeap(), 0, (const char *)test - HGLOBAL_STORAGE ) && /* obj(-handle) valid arena? */
|
|
HeapValidate( GetProcessHeap(), 0, maybe_intern )) /* intern valid arena? */
|
|
break; /* valid moveable block */
|
|
}
|
|
handle = 0;
|
|
SetLastError( ERROR_INVALID_HANDLE );
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError( ERROR_INVALID_HANDLE );
|
|
handle = 0;
|
|
}
|
|
__ENDTRY
|
|
RtlUnlockHeap(GetProcessHeap());
|
|
|
|
return handle;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalReAlloc (KERNEL32.@)
|
|
*
|
|
* Change the size or attributes of a global memory object.
|
|
*
|
|
* RETURNS
|
|
* Handle: Success
|
|
* NULL: Failure
|
|
*/
|
|
HGLOBAL WINAPI GlobalReAlloc(
|
|
HGLOBAL hmem, /* [in] Handle of global memory object */
|
|
SIZE_T size, /* [in] New size of block */
|
|
UINT flags /* [in] How to reallocate object */
|
|
) {
|
|
LPVOID palloc;
|
|
HGLOBAL hnew;
|
|
PGLOBAL32_INTERN pintern;
|
|
DWORD heap_flags = (flags & GMEM_ZEROINIT) ? HEAP_ZERO_MEMORY : 0;
|
|
|
|
hnew = 0;
|
|
RtlLockHeap(GetProcessHeap());
|
|
if(flags & GMEM_MODIFY) /* modify flags */
|
|
{
|
|
if( ISPOINTER(hmem) && (flags & GMEM_MOVEABLE))
|
|
{
|
|
/* make a fixed block moveable
|
|
* actually only NT is able to do this. But it's soo simple
|
|
*/
|
|
if (hmem == 0)
|
|
{
|
|
WARN("GlobalReAlloc with null handle!\n");
|
|
SetLastError( ERROR_NOACCESS );
|
|
hnew = 0;
|
|
}
|
|
else
|
|
{
|
|
size = HeapSize(GetProcessHeap(), 0, (LPVOID)hmem);
|
|
hnew = GlobalAlloc(flags, size);
|
|
palloc = GlobalLock(hnew);
|
|
memcpy(palloc, (LPVOID)hmem, size);
|
|
GlobalUnlock(hnew);
|
|
GlobalFree(hmem);
|
|
}
|
|
}
|
|
else if( ISPOINTER(hmem) &&(flags & GMEM_DISCARDABLE))
|
|
{
|
|
/* change the flags to make our block "discardable" */
|
|
pintern=HANDLE_TO_INTERN(hmem);
|
|
pintern->Flags = pintern->Flags | (GMEM_DISCARDABLE >> 8);
|
|
hnew=hmem;
|
|
}
|
|
else
|
|
{
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
hnew = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(ISPOINTER(hmem))
|
|
{
|
|
/* reallocate fixed memory */
|
|
hnew=HeapReAlloc(GetProcessHeap(), heap_flags, hmem, size);
|
|
}
|
|
else
|
|
{
|
|
/* reallocate a moveable block */
|
|
pintern=HANDLE_TO_INTERN(hmem);
|
|
|
|
#if 0
|
|
/* Apparently Windows doesn't care whether the handle is locked at this point */
|
|
/* See also the same comment in GlobalFree() */
|
|
if(pintern->LockCount>1) {
|
|
ERR("handle 0x%08lx is still locked, cannot realloc!\n",(DWORD)hmem);
|
|
SetLastError(ERROR_INVALID_HANDLE);
|
|
} else
|
|
#endif
|
|
if(size!=0)
|
|
{
|
|
hnew=hmem;
|
|
if(pintern->Pointer)
|
|
{
|
|
if((palloc = HeapReAlloc(GetProcessHeap(), heap_flags,
|
|
(char *) pintern->Pointer-HGLOBAL_STORAGE,
|
|
size+HGLOBAL_STORAGE)) == NULL)
|
|
hnew = 0; /* Block still valid */
|
|
else
|
|
pintern->Pointer = (char *)palloc+HGLOBAL_STORAGE;
|
|
}
|
|
else
|
|
{
|
|
if((palloc=HeapAlloc(GetProcessHeap(), heap_flags, size+HGLOBAL_STORAGE))
|
|
== NULL)
|
|
hnew = 0;
|
|
else
|
|
{
|
|
*(HGLOBAL *)palloc = hmem;
|
|
pintern->Pointer = (char *)palloc + HGLOBAL_STORAGE;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (pintern->LockCount == 0)
|
|
{
|
|
if(pintern->Pointer)
|
|
{
|
|
HeapFree(GetProcessHeap(), 0, (char *) pintern->Pointer-HGLOBAL_STORAGE);
|
|
pintern->Pointer = NULL;
|
|
}
|
|
hnew = hmem;
|
|
}
|
|
else
|
|
WARN("not freeing memory associated with locked handle\n");
|
|
}
|
|
}
|
|
}
|
|
RtlUnlockHeap(GetProcessHeap());
|
|
return hnew;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalFree (KERNEL32.@)
|
|
*
|
|
* Free a global memory object.
|
|
*
|
|
* PARAMS
|
|
* hmem [I] Handle of the global memory object
|
|
*
|
|
* RETURNS
|
|
* Success: NULL
|
|
* Failure: The provided handle
|
|
*
|
|
* NOTES
|
|
* When the handle is invalid, last error is set to ERROR_INVALID_HANDLE
|
|
*
|
|
*/
|
|
HGLOBAL WINAPI GlobalFree(HGLOBAL hmem)
|
|
{
|
|
PGLOBAL32_INTERN pintern;
|
|
HGLOBAL hreturned;
|
|
|
|
RtlLockHeap(GetProcessHeap());
|
|
__TRY
|
|
{
|
|
hreturned = 0;
|
|
if(ISPOINTER(hmem)) /* POINTER */
|
|
{
|
|
if(!HeapFree(GetProcessHeap(), 0, (LPVOID) hmem)) hmem = 0;
|
|
}
|
|
else /* HANDLE */
|
|
{
|
|
pintern=HANDLE_TO_INTERN(hmem);
|
|
|
|
if(pintern->Magic==MAGIC_GLOBAL_USED)
|
|
{
|
|
pintern->Magic = 0xdead;
|
|
|
|
/* WIN98 does not make this test. That is you can free a */
|
|
/* block you have not unlocked. Go figure!! */
|
|
/* if(pintern->LockCount!=0) */
|
|
/* SetLastError(ERROR_INVALID_HANDLE); */
|
|
|
|
if(pintern->Pointer)
|
|
if(!HeapFree(GetProcessHeap(), 0, (char *)(pintern->Pointer)-HGLOBAL_STORAGE))
|
|
hreturned=hmem;
|
|
if(!HeapFree(GetProcessHeap(), 0, pintern))
|
|
hreturned=hmem;
|
|
}
|
|
else
|
|
{
|
|
WARN("invalid handle %p (Magic: 0x%04x)\n", hmem, pintern->Magic);
|
|
SetLastError(ERROR_INVALID_HANDLE);
|
|
hreturned = hmem;
|
|
}
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
ERR("(%p): Page fault occurred ! Caused by bug ?\n", hmem);
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
hreturned = hmem;
|
|
}
|
|
__ENDTRY
|
|
RtlUnlockHeap(GetProcessHeap());
|
|
return hreturned;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalSize (KERNEL32.@)
|
|
*
|
|
* Get the size of a global memory object.
|
|
*
|
|
* PARAMS
|
|
* hmem [I] Handle of the global memory object
|
|
*
|
|
* RETURNS
|
|
* Failure: 0
|
|
* Success: Size in Bytes of the global memory object
|
|
*
|
|
* NOTES
|
|
* When the handle is invalid, last error is set to ERROR_INVALID_HANDLE
|
|
*
|
|
*/
|
|
SIZE_T WINAPI GlobalSize(HGLOBAL hmem)
|
|
{
|
|
DWORD retval;
|
|
PGLOBAL32_INTERN pintern;
|
|
|
|
if (!hmem) return 0;
|
|
|
|
if(ISPOINTER(hmem))
|
|
{
|
|
retval=HeapSize(GetProcessHeap(), 0, (LPVOID) hmem);
|
|
}
|
|
else
|
|
{
|
|
RtlLockHeap(GetProcessHeap());
|
|
pintern=HANDLE_TO_INTERN(hmem);
|
|
|
|
if(pintern->Magic==MAGIC_GLOBAL_USED)
|
|
{
|
|
if (!pintern->Pointer) /* handle case of GlobalAlloc( ??,0) */
|
|
retval = 0;
|
|
else
|
|
{
|
|
retval = HeapSize(GetProcessHeap(), 0,
|
|
(char *)(pintern->Pointer) - HGLOBAL_STORAGE );
|
|
if (retval != (DWORD)-1) retval -= HGLOBAL_STORAGE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
WARN("invalid handle %p (Magic: 0x%04x)\n", hmem, pintern->Magic);
|
|
SetLastError(ERROR_INVALID_HANDLE);
|
|
retval=0;
|
|
}
|
|
RtlUnlockHeap(GetProcessHeap());
|
|
}
|
|
/* HeapSize returns 0xffffffff on failure */
|
|
if (retval == 0xffffffff) retval = 0;
|
|
return retval;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalWire (KERNEL32.@)
|
|
*/
|
|
LPVOID WINAPI GlobalWire(HGLOBAL hmem)
|
|
{
|
|
return GlobalLock( hmem );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalUnWire (KERNEL32.@)
|
|
*/
|
|
BOOL WINAPI GlobalUnWire(HGLOBAL hmem)
|
|
{
|
|
return GlobalUnlock( hmem);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalFix (KERNEL32.@)
|
|
*/
|
|
VOID WINAPI GlobalFix(HGLOBAL hmem)
|
|
{
|
|
GlobalLock( hmem );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalUnfix (KERNEL32.@)
|
|
*/
|
|
VOID WINAPI GlobalUnfix(HGLOBAL hmem)
|
|
{
|
|
GlobalUnlock( hmem);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalFlags (KERNEL32.@)
|
|
*
|
|
* Get information about a global memory object.
|
|
*
|
|
* PARAMS
|
|
* hmem [I] Handle of the global memory object
|
|
*
|
|
* RETURNS
|
|
* Failure: GMEM_INVALID_HANDLE, when the provided handle is invalid
|
|
* Success: Value specifying allocation flags and lock count
|
|
*
|
|
*/
|
|
UINT WINAPI GlobalFlags(HGLOBAL hmem)
|
|
{
|
|
DWORD retval;
|
|
PGLOBAL32_INTERN pintern;
|
|
|
|
if(ISPOINTER(hmem))
|
|
{
|
|
retval=0;
|
|
}
|
|
else
|
|
{
|
|
RtlLockHeap(GetProcessHeap());
|
|
pintern=HANDLE_TO_INTERN(hmem);
|
|
if(pintern->Magic==MAGIC_GLOBAL_USED)
|
|
{
|
|
retval=pintern->LockCount + (pintern->Flags<<8);
|
|
if(pintern->Pointer==0)
|
|
retval|= GMEM_DISCARDED;
|
|
}
|
|
else
|
|
{
|
|
WARN("invalid handle %p (Magic: 0x%04x)\n", hmem, pintern->Magic);
|
|
SetLastError(ERROR_INVALID_HANDLE);
|
|
retval = GMEM_INVALID_HANDLE;
|
|
}
|
|
RtlUnlockHeap(GetProcessHeap());
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalCompact (KERNEL32.@)
|
|
*/
|
|
SIZE_T WINAPI GlobalCompact( DWORD minfree )
|
|
{
|
|
return 0; /* GlobalCompact does nothing in Win32 */
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LocalAlloc (KERNEL32.@)
|
|
*
|
|
* Allocate a local memory object.
|
|
*
|
|
* RETURNS
|
|
* Handle: Success
|
|
* NULL: Failure
|
|
*
|
|
* NOTES
|
|
* Windows memory management does not provide a separate local heap
|
|
* and global heap.
|
|
*/
|
|
HLOCAL WINAPI LocalAlloc(
|
|
UINT flags, /* [in] Allocation attributes */
|
|
SIZE_T size /* [in] Number of bytes to allocate */
|
|
) {
|
|
return (HLOCAL)GlobalAlloc( flags, size );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LocalCompact (KERNEL32.@)
|
|
*/
|
|
SIZE_T WINAPI LocalCompact( UINT minfree )
|
|
{
|
|
return 0; /* LocalCompact does nothing in Win32 */
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LocalFlags (KERNEL32.@)
|
|
*
|
|
* Get information about a local memory object.
|
|
*
|
|
* RETURNS
|
|
* Value specifying allocation flags and lock count.
|
|
* LMEM_INVALID_HANDLE: Failure
|
|
*
|
|
* NOTES
|
|
* Windows memory management does not provide a separate local heap
|
|
* and global heap.
|
|
*/
|
|
UINT WINAPI LocalFlags(
|
|
HLOCAL handle /* [in] Handle of memory object */
|
|
) {
|
|
return GlobalFlags( (HGLOBAL)handle );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LocalFree (KERNEL32.@)
|
|
*
|
|
* Free a local memory object.
|
|
*
|
|
* RETURNS
|
|
* NULL: Success
|
|
* Handle: Failure
|
|
*
|
|
* NOTES
|
|
* Windows memory management does not provide a separate local heap
|
|
* and global heap.
|
|
*/
|
|
HLOCAL WINAPI LocalFree(
|
|
HLOCAL handle /* [in] Handle of memory object */
|
|
) {
|
|
return (HLOCAL)GlobalFree( (HGLOBAL)handle );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LocalHandle (KERNEL32.@)
|
|
*
|
|
* Get the handle associated with the pointer to a local memory block.
|
|
*
|
|
* RETURNS
|
|
* Handle: Success
|
|
* NULL: Failure
|
|
*
|
|
* NOTES
|
|
* Windows memory management does not provide a separate local heap
|
|
* and global heap.
|
|
*/
|
|
HLOCAL WINAPI LocalHandle(
|
|
LPCVOID ptr /* [in] Address of local memory block */
|
|
) {
|
|
return (HLOCAL)GlobalHandle( ptr );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LocalLock (KERNEL32.@)
|
|
* Locks a local memory object and returns pointer to the first byte
|
|
* of the memory block.
|
|
*
|
|
* RETURNS
|
|
* Pointer: Success
|
|
* NULL: Failure
|
|
*
|
|
* NOTES
|
|
* Windows memory management does not provide a separate local heap
|
|
* and global heap.
|
|
*/
|
|
LPVOID WINAPI LocalLock(
|
|
HLOCAL handle /* [in] Address of local memory object */
|
|
) {
|
|
return GlobalLock( (HGLOBAL)handle );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LocalReAlloc (KERNEL32.@)
|
|
*
|
|
* Change the size or attributes of a local memory object.
|
|
*
|
|
* RETURNS
|
|
* Handle: Success
|
|
* NULL: Failure
|
|
*
|
|
* NOTES
|
|
* Windows memory management does not provide a separate local heap
|
|
* and global heap.
|
|
*/
|
|
HLOCAL WINAPI LocalReAlloc(
|
|
HLOCAL handle, /* [in] Handle of memory object */
|
|
SIZE_T size, /* [in] New size of block */
|
|
UINT flags /* [in] How to reallocate object */
|
|
) {
|
|
return (HLOCAL)GlobalReAlloc( (HGLOBAL)handle, size, flags );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LocalShrink (KERNEL32.@)
|
|
*/
|
|
SIZE_T WINAPI LocalShrink( HGLOBAL handle, UINT newsize )
|
|
{
|
|
return 0; /* LocalShrink does nothing in Win32 */
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LocalSize (KERNEL32.@)
|
|
*
|
|
* Get the size of a local memory object.
|
|
*
|
|
* RETURNS
|
|
* Size: Success
|
|
* 0: Failure
|
|
*
|
|
* NOTES
|
|
* Windows memory management does not provide a separate local heap
|
|
* and global heap.
|
|
*/
|
|
SIZE_T WINAPI LocalSize(
|
|
HLOCAL handle /* [in] Handle of memory object */
|
|
) {
|
|
return GlobalSize( (HGLOBAL)handle );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LocalUnlock (KERNEL32.@)
|
|
*
|
|
* Unlock a local memory object.
|
|
*
|
|
* RETURNS
|
|
* TRUE: Object is still locked
|
|
* FALSE: Object is unlocked
|
|
*
|
|
* NOTES
|
|
* Windows memory management does not provide a separate local heap
|
|
* and global heap.
|
|
*/
|
|
BOOL WINAPI LocalUnlock(
|
|
HLOCAL handle /* [in] Handle of memory object */
|
|
) {
|
|
return GlobalUnlock( (HGLOBAL)handle );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* AllocMappedBuffer (KERNEL32.38)
|
|
*
|
|
* This is an undocumented KERNEL32 function that
|
|
* SMapLS's a GlobalAlloc'ed buffer.
|
|
*
|
|
* RETURNS
|
|
* EDI register: pointer to buffer
|
|
*
|
|
* NOTES
|
|
* The buffer is preceded by 8 bytes:
|
|
* ...
|
|
* edi+0 buffer
|
|
* edi-4 SEGPTR to buffer
|
|
* edi-8 some magic Win95 needs for SUnMapLS
|
|
* (we use it for the memory handle)
|
|
*
|
|
* The SEGPTR is used by the caller!
|
|
*/
|
|
void WINAPI __regs_AllocMappedBuffer(
|
|
CONTEXT86 *context /* [in] EDI register: size of buffer to allocate */
|
|
) {
|
|
HGLOBAL handle = GlobalAlloc(0, context->Edi + 8);
|
|
DWORD *buffer = (DWORD *)GlobalLock(handle);
|
|
DWORD ptr = 0;
|
|
|
|
if (buffer)
|
|
if (!(ptr = MapLS(buffer + 2)))
|
|
{
|
|
GlobalUnlock(handle);
|
|
GlobalFree(handle);
|
|
}
|
|
|
|
if (!ptr)
|
|
context->Eax = context->Edi = 0;
|
|
else
|
|
{
|
|
buffer[0] = (DWORD)handle;
|
|
buffer[1] = ptr;
|
|
|
|
context->Eax = (DWORD) ptr;
|
|
context->Edi = (DWORD)(buffer + 2);
|
|
}
|
|
}
|
|
#ifdef DEFINE_REGS_ENTRYPOINT
|
|
DEFINE_REGS_ENTRYPOINT( AllocMappedBuffer, 0, 0 );
|
|
#endif
|
|
|
|
/**********************************************************************
|
|
* FreeMappedBuffer (KERNEL32.39)
|
|
*
|
|
* Free a buffer allocated by AllocMappedBuffer
|
|
*
|
|
* RETURNS
|
|
* Nothing.
|
|
*/
|
|
void WINAPI __regs_FreeMappedBuffer(
|
|
CONTEXT86 *context /* [in] EDI register: pointer to buffer */
|
|
) {
|
|
if (context->Edi)
|
|
{
|
|
DWORD *buffer = (DWORD *)context->Edi - 2;
|
|
|
|
UnMapLS(buffer[1]);
|
|
|
|
GlobalUnlock((HGLOBAL)buffer[0]);
|
|
GlobalFree((HGLOBAL)buffer[0]);
|
|
}
|
|
}
|
|
#ifdef DEFINE_REGS_ENTRYPOINT
|
|
DEFINE_REGS_ENTRYPOINT( FreeMappedBuffer, 0, 0 );
|
|
#endif
|
|
|
|
/***********************************************************************
|
|
* GlobalMemoryStatusEx (KERNEL32.@)
|
|
* A version of GlobalMemoryStatus that can deal with memory over 4GB
|
|
*
|
|
* RETURNS
|
|
* TRUE
|
|
*/
|
|
BOOL WINAPI GlobalMemoryStatusEx( LPMEMORYSTATUSEX lpmemex )
|
|
{
|
|
static MEMORYSTATUSEX cached_memstatus;
|
|
static int cache_lastchecked = 0;
|
|
SYSTEM_INFO si;
|
|
#ifdef linux
|
|
FILE *f;
|
|
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__)
|
|
unsigned long val;
|
|
int size_sys, mib[2];
|
|
#elif defined(__APPLE__)
|
|
unsigned int val;
|
|
int mib[2];
|
|
size_t size_sys;
|
|
#elif defined(sun)
|
|
unsigned long pagesize,maxpages,freepages,swapspace,swapfree;
|
|
struct anoninfo swapinf;
|
|
int rval;
|
|
#endif
|
|
|
|
if (time(NULL)==cache_lastchecked) {
|
|
memcpy(lpmemex,&cached_memstatus,sizeof(*lpmemex));
|
|
return TRUE;
|
|
}
|
|
cache_lastchecked = time(NULL);
|
|
|
|
lpmemex->dwLength = sizeof(*lpmemex);
|
|
lpmemex->dwMemoryLoad = 0;
|
|
lpmemex->ullTotalPhys = 16*1024*1024;
|
|
lpmemex->ullAvailPhys = 16*1024*1024;
|
|
lpmemex->ullTotalPageFile = 16*1024*1024;
|
|
lpmemex->ullAvailPageFile = 16*1024*1024;
|
|
|
|
#ifdef linux
|
|
f = fopen( "/proc/meminfo", "r" );
|
|
if (f)
|
|
{
|
|
char buffer[256];
|
|
unsigned long total, used, free, shared, buffers, cached;
|
|
|
|
lpmemex->ullTotalPhys = lpmemex->ullAvailPhys = 0;
|
|
lpmemex->ullTotalPageFile = lpmemex->ullAvailPageFile = 0;
|
|
while (fgets( buffer, sizeof(buffer), f ))
|
|
{
|
|
/* old style /proc/meminfo ... */
|
|
if (sscanf( buffer, "Mem: %lu %lu %lu %lu %lu %lu",
|
|
&total, &used, &free, &shared, &buffers, &cached ))
|
|
{
|
|
lpmemex->ullTotalPhys += total;
|
|
lpmemex->ullAvailPhys += free + buffers + cached;
|
|
}
|
|
if (sscanf( buffer, "Swap: %lu %lu %lu", &total, &used, &free ))
|
|
{
|
|
lpmemex->ullTotalPageFile += total;
|
|
lpmemex->ullAvailPageFile += free;
|
|
}
|
|
|
|
/* new style /proc/meminfo ... */
|
|
if (sscanf(buffer, "MemTotal: %lu", &total))
|
|
lpmemex->ullTotalPhys = total*1024;
|
|
if (sscanf(buffer, "MemFree: %lu", &free))
|
|
lpmemex->ullAvailPhys = free*1024;
|
|
if (sscanf(buffer, "SwapTotal: %lu", &total))
|
|
lpmemex->ullTotalPageFile = total*1024;
|
|
if (sscanf(buffer, "SwapFree: %lu", &free))
|
|
lpmemex->ullAvailPageFile = free*1024;
|
|
if (sscanf(buffer, "Buffers: %lu", &buffers))
|
|
lpmemex->ullAvailPhys += buffers*1024;
|
|
if (sscanf(buffer, "Cached: %lu", &cached))
|
|
lpmemex->ullAvailPhys += cached*1024;
|
|
}
|
|
fclose( f );
|
|
|
|
if (lpmemex->ullTotalPhys)
|
|
{
|
|
DWORDLONG TotalPhysical = lpmemex->ullTotalPhys+lpmemex->ullTotalPageFile;
|
|
DWORDLONG AvailPhysical = lpmemex->ullAvailPhys+lpmemex->ullAvailPageFile;
|
|
lpmemex->dwMemoryLoad = (TotalPhysical-AvailPhysical)
|
|
/ (TotalPhysical / 100);
|
|
}
|
|
}
|
|
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__APPLE__)
|
|
mib[0] = CTL_HW;
|
|
mib[1] = HW_PHYSMEM;
|
|
size_sys = sizeof(val);
|
|
sysctl(mib, 2, &val, &size_sys, NULL, 0);
|
|
if (val) lpmemex->ullTotalPhys = val;
|
|
mib[1] = HW_USERMEM;
|
|
size_sys = sizeof(val);
|
|
sysctl(mib, 2, &val, &size_sys, NULL, 0);
|
|
if (!val) val = lpmemex->ullTotalPhys;
|
|
lpmemex->ullAvailPhys = val;
|
|
lpmemex->ullTotalPageFile = val;
|
|
lpmemex->ullAvailPageFile = val;
|
|
lpmemex->dwMemoryLoad = lpmemex->ullTotalPhys - lpmemex->ullAvailPhys;
|
|
#elif defined ( sun )
|
|
pagesize=sysconf(_SC_PAGESIZE);
|
|
maxpages=sysconf(_SC_PHYS_PAGES);
|
|
freepages=sysconf(_SC_AVPHYS_PAGES);
|
|
rval=swapctl(SC_AINFO, &swapinf);
|
|
if(rval >-1)
|
|
{
|
|
swapspace=swapinf.ani_max*pagesize;
|
|
swapfree=swapinf.ani_free*pagesize;
|
|
}else
|
|
{
|
|
|
|
WARN("Swap size cannot be determined , assuming equal to physical memory\n");
|
|
swapspace=maxpages*pagesize;
|
|
swapfree=maxpages*pagesize;
|
|
}
|
|
lpmemex->ullTotalPhys=pagesize*maxpages;
|
|
lpmemex->ullAvailPhys = pagesize*freepages;
|
|
lpmemex->ullTotalPageFile = swapspace;
|
|
lpmemex->ullAvailPageFile = swapfree;
|
|
lpmemex->dwMemoryLoad = lpmemex->ullTotalPhys - lpmemex->ullAvailPhys;
|
|
#endif
|
|
|
|
/* Project2k refuses to start if it sees less than 1Mb of free swap */
|
|
if (lpmemex->ullTotalPageFile < lpmemex->ullTotalPhys)
|
|
lpmemex->ullTotalPageFile = lpmemex->ullTotalPhys;
|
|
if (lpmemex->ullAvailPageFile < lpmemex->ullAvailPhys)
|
|
lpmemex->ullAvailPageFile = lpmemex->ullAvailPhys;
|
|
|
|
/* FIXME: should do something for other systems */
|
|
GetSystemInfo(&si);
|
|
lpmemex->ullTotalVirtual = (char*)si.lpMaximumApplicationAddress-(char*)si.lpMinimumApplicationAddress;
|
|
/* FIXME: we should track down all the already allocated VM pages and substract them, for now arbitrarily remove 64KB so that it matches NT */
|
|
lpmemex->ullAvailVirtual = lpmemex->ullTotalVirtual-64*1024;
|
|
|
|
/* MSDN says about AvailExtendedVirtual: Size of unreserved and uncommitted
|
|
memory in the extended portion of the virtual address space of the calling
|
|
process, in bytes.
|
|
However, I don't know what this means, so set it to zero :(
|
|
*/
|
|
lpmemex->ullAvailExtendedVirtual = 0;
|
|
|
|
memcpy(&cached_memstatus,lpmemex,sizeof(*lpmemex));
|
|
|
|
TRACE("<-- LPMEMORYSTATUSEX: dwLength %d, dwMemoryLoad %d, ullTotalPhys %s, ullAvailPhys %s,"
|
|
" ullTotalPageFile %s, ullAvailPageFile %s, ullTotalVirtual %s, ullAvailVirtual %s\n",
|
|
lpmemex->dwLength, lpmemex->dwMemoryLoad, wine_dbgstr_longlong(lpmemex->ullTotalPhys),
|
|
wine_dbgstr_longlong(lpmemex->ullAvailPhys), wine_dbgstr_longlong(lpmemex->ullTotalPageFile),
|
|
wine_dbgstr_longlong(lpmemex->ullAvailPageFile), wine_dbgstr_longlong(lpmemex->ullTotalVirtual),
|
|
wine_dbgstr_longlong(lpmemex->ullAvailVirtual) );
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* GlobalMemoryStatus (KERNEL32.@)
|
|
* Provides information about the status of the memory, so apps can tell
|
|
* roughly how much they are able to allocate
|
|
*
|
|
* RETURNS
|
|
* None
|
|
*/
|
|
VOID WINAPI GlobalMemoryStatus( LPMEMORYSTATUS lpBuffer )
|
|
{
|
|
MEMORYSTATUSEX memstatus;
|
|
OSVERSIONINFOW osver;
|
|
|
|
/* Because GlobalMemoryStatus is identical to GlobalMemoryStatusEX save
|
|
for one extra field in the struct, and the lack of a bug, we simply
|
|
call GlobalMemoryStatusEx and copy the values across. */
|
|
GlobalMemoryStatusEx(&memstatus);
|
|
|
|
lpBuffer->dwLength = sizeof(*lpBuffer);
|
|
lpBuffer->dwMemoryLoad = memstatus.dwMemoryLoad;
|
|
|
|
/* Windows 2000 and later report -1 when values are greater than 4 Gb.
|
|
* NT reports values modulo 4 Gb.
|
|
* Values between 2 Gb and 4 Gb are rounded down to 2 Gb.
|
|
*/
|
|
|
|
osver.dwOSVersionInfoSize = sizeof(osver);
|
|
GetVersionExW(&osver);
|
|
|
|
if ( osver.dwMajorVersion >= 5 )
|
|
{
|
|
lpBuffer->dwTotalPhys = (memstatus.ullTotalPhys > MAXDWORD) ? MAXDWORD :
|
|
(memstatus.ullTotalPhys > MAXLONG) ? MAXLONG : memstatus.ullTotalPhys;
|
|
lpBuffer->dwAvailPhys = (memstatus.ullAvailPhys > MAXDWORD) ? MAXDWORD :
|
|
(memstatus.ullAvailPhys > MAXLONG) ? MAXLONG : memstatus.ullAvailPhys;
|
|
lpBuffer->dwTotalPageFile = (memstatus.ullTotalPageFile > MAXDWORD) ? MAXDWORD :
|
|
(memstatus.ullTotalPageFile > MAXLONG) ? MAXLONG : memstatus.ullTotalPageFile;
|
|
lpBuffer->dwAvailPageFile = (memstatus.ullAvailPageFile > MAXDWORD) ? MAXDWORD :
|
|
(memstatus.ullAvailPageFile > MAXLONG) ? MAXLONG : memstatus.ullAvailPageFile;
|
|
lpBuffer->dwTotalVirtual = (memstatus.ullTotalVirtual > MAXDWORD) ? MAXDWORD :
|
|
(memstatus.ullTotalVirtual > MAXLONG) ? MAXLONG : memstatus.ullTotalVirtual;
|
|
lpBuffer->dwAvailVirtual = (memstatus.ullAvailVirtual > MAXDWORD) ? MAXDWORD :
|
|
(memstatus.ullAvailVirtual > MAXLONG) ? MAXLONG : memstatus.ullAvailVirtual;
|
|
}
|
|
else /* duplicate NT bug */
|
|
{
|
|
lpBuffer->dwTotalPhys = (memstatus.ullTotalPhys > MAXDWORD) ? memstatus.ullTotalPhys :
|
|
(memstatus.ullTotalPhys > MAXLONG) ? MAXLONG : memstatus.ullTotalPhys;
|
|
lpBuffer->dwAvailPhys = (memstatus.ullAvailPhys > MAXDWORD) ? memstatus.ullAvailPhys :
|
|
(memstatus.ullAvailPhys > MAXLONG) ? MAXLONG : memstatus.ullAvailPhys;
|
|
lpBuffer->dwTotalPageFile = (memstatus.ullTotalPageFile > MAXDWORD) ? memstatus.ullTotalPageFile :
|
|
(memstatus.ullTotalPageFile > MAXLONG) ? MAXLONG : memstatus.ullTotalPageFile;
|
|
lpBuffer->dwAvailPageFile = (memstatus.ullAvailPageFile > MAXDWORD) ? memstatus.ullAvailPageFile :
|
|
(memstatus.ullAvailPageFile > MAXLONG) ? MAXLONG : memstatus.ullAvailPageFile;
|
|
lpBuffer->dwTotalVirtual = (memstatus.ullTotalVirtual > MAXDWORD) ? memstatus.ullTotalVirtual :
|
|
(memstatus.ullTotalVirtual > MAXLONG) ? MAXLONG : memstatus.ullTotalVirtual;
|
|
lpBuffer->dwAvailVirtual = (memstatus.ullAvailVirtual > MAXDWORD) ? memstatus.ullAvailVirtual :
|
|
(memstatus.ullAvailVirtual > MAXLONG) ? MAXLONG : memstatus.ullAvailVirtual;
|
|
}
|
|
|
|
/* work around for broken photoshop 4 installer */
|
|
if ( lpBuffer->dwAvailPhys + lpBuffer->dwAvailPageFile >= 2U*1024*1024*1024)
|
|
lpBuffer->dwAvailPageFile = 2U*1024*1024*1024 - lpBuffer->dwAvailPhys - 1;
|
|
}
|