826 lines
22 KiB
C
826 lines
22 KiB
C
/*
|
|
* Global heap functions
|
|
*
|
|
* Copyright 1995 Alexandre Julliard
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
|
|
#include "windows.h"
|
|
#include "global.h"
|
|
#include "toolhelp.h"
|
|
#include "selectors.h"
|
|
#include "dde_mem.h"
|
|
#include "stackframe.h"
|
|
#include "options.h"
|
|
#include "stddebug.h"
|
|
#include "debug.h"
|
|
|
|
/* Global arena block */
|
|
typedef struct
|
|
{
|
|
DWORD base; /* Base address (0 if discarded) */
|
|
DWORD size; /* Size in bytes (0 indicates a free block) */
|
|
HGLOBAL handle; /* Handle for this block */
|
|
HGLOBAL hOwner; /* Owner of this block */
|
|
BYTE lockCount; /* Count of GlobalFix() calls */
|
|
BYTE pageLockCount; /* Count of GlobalPageLock() calls */
|
|
BYTE flags; /* Allocation flags */
|
|
BYTE selCount; /* Number of selectors allocated for this block */
|
|
#ifdef CONFIG_IPC
|
|
int shmid;
|
|
#endif
|
|
} GLOBALARENA;
|
|
|
|
/* Flags definitions */
|
|
#define GA_MOVEABLE 0x02 /* same as GMEM_MOVEABLE */
|
|
#define GA_DGROUP 0x04
|
|
#define GA_DISCARDABLE 0x08
|
|
#define GA_IPCSHARE 0x10 /* same as GMEM_DDESHARE */
|
|
|
|
/* Arena array */
|
|
static GLOBALARENA *pGlobalArena = NULL;
|
|
static int globalArenaSize = 0;
|
|
|
|
#define GLOBAL_MAX_ALLOC_SIZE 0x00ff0000 /* Largest allocation is 16M - 64K */
|
|
|
|
#define GET_ARENA_PTR(handle) (pGlobalArena + ((handle) >> __AHSHIFT))
|
|
|
|
/***********************************************************************
|
|
* GLOBAL_GetArena
|
|
*
|
|
* Return the arena for a given selector, growing the arena array if needed.
|
|
*/
|
|
static GLOBALARENA *GLOBAL_GetArena( WORD sel, WORD selcount )
|
|
{
|
|
if (((sel >> __AHSHIFT) + selcount) > globalArenaSize)
|
|
{
|
|
int newsize = ((sel >> __AHSHIFT) + selcount + 0xff) & ~0xff;
|
|
GLOBALARENA *pNewArena = realloc( pGlobalArena,
|
|
newsize * sizeof(GLOBALARENA) );
|
|
if (!pNewArena) return 0;
|
|
pGlobalArena = pNewArena;
|
|
memset( pGlobalArena + globalArenaSize, 0,
|
|
(newsize - globalArenaSize) * sizeof(GLOBALARENA) );
|
|
globalArenaSize = newsize;
|
|
}
|
|
return pGlobalArena + (sel >> __AHSHIFT);
|
|
}
|
|
|
|
|
|
void debug_handles()
|
|
{
|
|
int printed=0;
|
|
int i;
|
|
for (i = globalArenaSize-1 ; i>=0 ; i--) {
|
|
if (pGlobalArena[i].size!=0 && (pGlobalArena[i].handle & 0x8000)){
|
|
printed=1;
|
|
printf("0x%08x, ",pGlobalArena[i].handle);
|
|
}
|
|
}
|
|
if (printed)
|
|
printf("\n");
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GLOBAL_CreateBlock
|
|
*
|
|
* Create a global heap block for a fixed range of linear memory.
|
|
*/
|
|
HGLOBAL GLOBAL_CreateBlock( WORD flags, const void *ptr, DWORD size,
|
|
HGLOBAL hOwner, BOOL isCode,
|
|
BOOL is32Bit, BOOL isReadOnly,
|
|
SHMDATA *shmdata )
|
|
{
|
|
WORD sel, selcount;
|
|
GLOBALARENA *pArena;
|
|
|
|
/* Allocate the selector(s) */
|
|
|
|
sel = SELECTOR_AllocBlock( ptr, size,
|
|
isCode ? SEGMENT_CODE : SEGMENT_DATA,
|
|
is32Bit, isReadOnly );
|
|
|
|
if (!sel) return 0;
|
|
selcount = (size + 0xffff) / 0x10000;
|
|
|
|
if (!(pArena = GLOBAL_GetArena( sel, selcount )))
|
|
{
|
|
FreeSelector( sel );
|
|
return 0;
|
|
}
|
|
|
|
/* Fill the arena block */
|
|
|
|
pArena->base = (DWORD)ptr;
|
|
pArena->size = GET_SEL_LIMIT(sel) + 1;
|
|
|
|
#ifdef CONFIG_IPC
|
|
if ((flags & GMEM_DDESHARE) && Options.ipc)
|
|
{
|
|
pArena->handle = shmdata->handle;
|
|
pArena->shmid = shmdata->shmid;
|
|
shmdata->sel = sel;
|
|
}
|
|
else
|
|
{
|
|
pArena->handle = (flags & GMEM_MOVEABLE) ? sel - 1 : sel;
|
|
pArena->shmid = 0;
|
|
}
|
|
#else
|
|
pArena->handle = (flags & GMEM_MOVEABLE) ? sel - 1 : sel;
|
|
#endif
|
|
pArena->hOwner = hOwner;
|
|
pArena->lockCount = 0;
|
|
pArena->pageLockCount = 0;
|
|
pArena->flags = flags & GA_MOVEABLE;
|
|
if (flags & GMEM_DISCARDABLE) pArena->flags |= GA_DISCARDABLE;
|
|
if (flags & GMEM_DDESHARE) pArena->flags |= GA_IPCSHARE;
|
|
if (!isCode) pArena->flags |= GA_DGROUP;
|
|
pArena->selCount = selcount;
|
|
if (selcount > 1) /* clear the next arena blocks */
|
|
memset( pArena + 1, 0, (selcount - 1) * sizeof(GLOBALARENA) );
|
|
|
|
return pArena->handle;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GLOBAL_FreeBlock
|
|
*
|
|
* Free a block allocated by GLOBAL_CreateBlock, without touching
|
|
* the associated linear memory range.
|
|
*/
|
|
BOOL GLOBAL_FreeBlock( HGLOBAL handle )
|
|
{
|
|
WORD sel;
|
|
|
|
if (!handle) return TRUE;
|
|
sel = GlobalHandleToSel( handle );
|
|
if (FreeSelector( sel )) return FALSE; /* failed */
|
|
memset( GET_ARENA_PTR(sel), 0, sizeof(GLOBALARENA) );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GLOBAL_Alloc
|
|
*
|
|
* Implementation of GlobalAlloc()
|
|
*/
|
|
HGLOBAL GLOBAL_Alloc( WORD flags, DWORD size, HGLOBAL hOwner,
|
|
BOOL isCode, BOOL is32Bit, BOOL isReadOnly )
|
|
{
|
|
void *ptr;
|
|
HGLOBAL handle;
|
|
SHMDATA shmdata;
|
|
|
|
dprintf_global( stddeb, "GlobalAlloc: %ld flags=%04x\n", size, flags );
|
|
|
|
/* If size is 0, create a discarded block */
|
|
|
|
if (size == 0) return GLOBAL_CreateBlock( flags, NULL, 1, hOwner, isCode,
|
|
is32Bit, isReadOnly, NULL );
|
|
|
|
/* Fixup the size */
|
|
|
|
if (size >= GLOBAL_MAX_ALLOC_SIZE - 0x1f) return 0;
|
|
size = (size + 0x1f) & ~0x1f;
|
|
|
|
/* Allocate the linear memory */
|
|
|
|
#ifdef CONFIG_IPC
|
|
if ((flags & GMEM_DDESHARE) && Options.ipc)
|
|
ptr = DDE_malloc(flags, size, &shmdata);
|
|
else
|
|
#endif /* CONFIG_IPC */
|
|
ptr = malloc( size );
|
|
if (!ptr) return 0;
|
|
|
|
/* Allocate the selector(s) */
|
|
|
|
handle = GLOBAL_CreateBlock( flags, ptr, size, hOwner,
|
|
isCode, is32Bit, isReadOnly, &shmdata);
|
|
if (!handle)
|
|
{
|
|
free( ptr );
|
|
return 0;
|
|
}
|
|
|
|
if (flags & GMEM_ZEROINIT) memset( ptr, 0, size );
|
|
return handle;
|
|
}
|
|
|
|
|
|
#ifdef CONFIG_IPC
|
|
/***********************************************************************
|
|
* GLOBAL_FindArena
|
|
*
|
|
* Find the arena for a given handle
|
|
* (when handle is not serial - e.g. DDE)
|
|
*/
|
|
static GLOBALARENA *GLOBAL_FindArena( HGLOBAL handle)
|
|
{
|
|
int i;
|
|
for (i = globalArenaSize-1 ; i>=0 ; i--) {
|
|
if (pGlobalArena[i].size!=0 && pGlobalArena[i].handle == handle)
|
|
return ( &pGlobalArena[i] );
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* DDE_GlobalHandleToSel
|
|
*/
|
|
|
|
WORD DDE_GlobalHandleToSel( HGLOBAL handle )
|
|
{
|
|
GLOBALARENA *pArena;
|
|
SEGPTR segptr;
|
|
|
|
pArena= GLOBAL_FindArena(handle);
|
|
if (pArena) {
|
|
int ArenaIdx = pArena - pGlobalArena;
|
|
|
|
/* See if synchronized to the shared memory */
|
|
return DDE_SyncHandle(handle, ( ArenaIdx << __AHSHIFT) | 7);
|
|
}
|
|
|
|
/* attach the block */
|
|
DDE_AttachHandle(handle, &segptr);
|
|
|
|
return SELECTOROF( segptr );
|
|
}
|
|
#endif /* CONFIG_IPC */
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalAlloc (KERNEL.15)
|
|
*/
|
|
HGLOBAL GlobalAlloc( WORD flags, DWORD size )
|
|
{
|
|
HANDLE owner = GetCurrentPDB();
|
|
|
|
if (flags & GMEM_DDESHARE)
|
|
owner = GetExePtr(owner); /* Make it a module handle */
|
|
return GLOBAL_Alloc( flags, size, owner, FALSE, FALSE, FALSE );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalReAlloc (KERNEL.16)
|
|
*/
|
|
HGLOBAL GlobalReAlloc( HGLOBAL handle, DWORD size, WORD flags )
|
|
{
|
|
WORD selcount;
|
|
DWORD oldsize;
|
|
void *ptr;
|
|
GLOBALARENA *pArena, *pNewArena;
|
|
WORD sel = GlobalHandleToSel( handle );
|
|
|
|
dprintf_global( stddeb, "GlobalReAlloc: %04x %ld flags=%04x\n",
|
|
handle, size, flags );
|
|
if (!handle) return 0;
|
|
|
|
#ifdef CONFIG_IPC
|
|
if (Options.ipc && (flags & GMEM_DDESHARE || is_dde_handle(handle))) {
|
|
fprintf(stdnimp,
|
|
"GlobalReAlloc: shared memory reallocating unimplemented\n");
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_IPC */
|
|
|
|
pArena = GET_ARENA_PTR( handle );
|
|
|
|
/* Discard the block if requested */
|
|
|
|
if ((size == 0) && (flags & GMEM_MOVEABLE) && !(flags & GMEM_MODIFY))
|
|
{
|
|
if (!(pArena->flags & GA_MOVEABLE) ||
|
|
!(pArena->flags & GA_DISCARDABLE) ||
|
|
(pArena->lockCount > 0) || (pArena->pageLockCount > 0)) return 0;
|
|
free( (void *)pArena->base );
|
|
pArena->base = 0;
|
|
/* Note: we rely on the fact that SELECTOR_ReallocBlock won't */
|
|
/* change the selector if we are shrinking the block */
|
|
SELECTOR_ReallocBlock( sel, 0, 1, SEGMENT_DATA, 0, 0 );
|
|
return handle;
|
|
}
|
|
|
|
/* Fixup the size */
|
|
|
|
if (size > GLOBAL_MAX_ALLOC_SIZE - 0x20) return 0;
|
|
if (size == 0) size = 0x20;
|
|
else size = (size + 0x1f) & ~0x1f;
|
|
|
|
/* Change the flags */
|
|
|
|
if (flags & GMEM_MODIFY)
|
|
{
|
|
/* Change the flags, leaving GA_DGROUP alone */
|
|
pArena->flags = (pArena->flags & GA_DGROUP) | (flags & GA_MOVEABLE);
|
|
if (flags & GMEM_DISCARDABLE) pArena->flags |= GA_DISCARDABLE;
|
|
return handle;
|
|
}
|
|
|
|
/* Reallocate the linear memory */
|
|
|
|
ptr = (void *)pArena->base;
|
|
oldsize = pArena->size;
|
|
dprintf_global(stddeb,"oldsize %08lx\n",oldsize);
|
|
if (ptr && (size == oldsize)) return handle; /* Nothing to do */
|
|
|
|
ptr = realloc( ptr, size );
|
|
if (!ptr)
|
|
{
|
|
FreeSelector( sel );
|
|
memset( pArena, 0, sizeof(GLOBALARENA) );
|
|
return 0;
|
|
}
|
|
|
|
/* Reallocate the selector(s) */
|
|
|
|
sel = SELECTOR_ReallocBlock( sel, ptr, size, SEGMENT_DATA, 0, 0 );
|
|
if (!sel)
|
|
{
|
|
free( ptr );
|
|
memset( pArena, 0, sizeof(GLOBALARENA) );
|
|
return 0;
|
|
}
|
|
selcount = (size + 0xffff) / 0x10000;
|
|
|
|
if (!(pNewArena = GLOBAL_GetArena( sel, selcount )))
|
|
{
|
|
free( ptr );
|
|
FreeSelector( sel );
|
|
return 0;
|
|
}
|
|
|
|
/* Fill the new arena block */
|
|
|
|
if (pNewArena != pArena) memcpy( pNewArena, pArena, sizeof(GLOBALARENA) );
|
|
pNewArena->base = (DWORD)ptr;
|
|
pNewArena->size = GET_SEL_LIMIT(sel) + 1;
|
|
pNewArena->selCount = selcount;
|
|
pNewArena->handle = (pNewArena->flags & GA_MOVEABLE) ? sel - 1 : sel;
|
|
|
|
if (selcount > 1) /* clear the next arena blocks */
|
|
memset( pNewArena + 1, 0, (selcount - 1) * sizeof(GLOBALARENA) );
|
|
|
|
if ((oldsize < size) && (flags & GMEM_ZEROINIT))
|
|
memset( (char *)ptr + oldsize, 0, size - oldsize );
|
|
return pNewArena->handle;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalFree (KERNEL.17)
|
|
*/
|
|
HGLOBAL GlobalFree( HGLOBAL handle )
|
|
{
|
|
void *ptr = GlobalLock( handle );
|
|
|
|
dprintf_global( stddeb, "GlobalFree: %04x\n", handle );
|
|
if (!GLOBAL_FreeBlock( handle )) return handle; /* failed */
|
|
#ifdef CONFIG_IPC
|
|
if (is_dde_handle(handle)) return DDE_GlobalFree(handle);
|
|
#endif /* CONFIG_IPC */
|
|
if (ptr) free( ptr );
|
|
return 0;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* WIN16_GlobalLock (KERNEL.18)
|
|
*
|
|
* This is the GlobalLock() function used by 16-bit code.
|
|
*/
|
|
SEGPTR WIN16_GlobalLock( HGLOBAL handle )
|
|
{
|
|
dprintf_global( stddeb, "WIN16_GlobalLock(%04x) -> %08lx\n",
|
|
handle, MAKELONG( 0, GlobalHandleToSel(handle)) );
|
|
if (!handle) return 0;
|
|
|
|
#ifdef CONFIG_IPC
|
|
if (is_dde_handle(handle))
|
|
return (SEGPTR)MAKELONG( 0, DDE_GlobalHandleToSel(handle) );
|
|
#endif /* CONFIG_IPC */
|
|
|
|
if (!GET_ARENA_PTR(handle)->base) return (SEGPTR)0;
|
|
return (SEGPTR)MAKELONG( 0, GlobalHandleToSel(handle) );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalLock (KERNEL.18)
|
|
*
|
|
* This is the GlobalLock() function used by 32-bit code.
|
|
*/
|
|
LPVOID GlobalLock( HGLOBAL handle )
|
|
{
|
|
if (!handle) return 0;
|
|
#ifdef CONFIG_IPC
|
|
if (is_dde_handle(handle)) return DDE_AttachHandle(handle, NULL);
|
|
#endif
|
|
return (LPSTR)GET_ARENA_PTR(handle)->base;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalUnlock (KERNEL.19)
|
|
*/
|
|
BOOL GlobalUnlock( HGLOBAL handle )
|
|
{
|
|
dprintf_global( stddeb, "GlobalUnlock: %04x\n", handle );
|
|
return 0;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalSize (KERNEL.20)
|
|
*/
|
|
DWORD GlobalSize( HGLOBAL handle )
|
|
{
|
|
dprintf_global( stddeb, "GlobalSize: %04x\n", handle );
|
|
if (!handle) return 0;
|
|
return GET_ARENA_PTR(handle)->size;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalHandle (KERNEL.21)
|
|
*/
|
|
DWORD GlobalHandle( WORD sel )
|
|
{
|
|
dprintf_global( stddeb, "GlobalHandle: %04x\n", sel );
|
|
return MAKELONG( GET_ARENA_PTR(sel)->handle, GlobalHandleToSel(sel) );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalFlags (KERNEL.22)
|
|
*/
|
|
WORD GlobalFlags( HGLOBAL handle )
|
|
{
|
|
GLOBALARENA *pArena;
|
|
|
|
dprintf_global( stddeb, "GlobalFlags: %04x\n", handle );
|
|
pArena = GET_ARENA_PTR(handle);
|
|
return pArena->lockCount |
|
|
((pArena->flags & GA_DISCARDABLE) ? GMEM_DISCARDABLE : 0) |
|
|
((pArena->base == 0) ? GMEM_DISCARDED : 0);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LockSegment (KERNEL.23)
|
|
*/
|
|
HGLOBAL LockSegment( HGLOBAL handle )
|
|
{
|
|
dprintf_global( stddeb, "LockSegment: %04x\n", handle );
|
|
if (handle == (HGLOBAL)-1) handle = CURRENT_DS;
|
|
GET_ARENA_PTR(handle)->lockCount++;
|
|
return handle;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* UnlockSegment (KERNEL.24)
|
|
*/
|
|
void UnlockSegment( HGLOBAL handle )
|
|
{
|
|
dprintf_global( stddeb, "UnlockSegment: %04x\n", handle );
|
|
if (handle == (HGLOBAL)-1) handle = CURRENT_DS;
|
|
GET_ARENA_PTR(handle)->lockCount--;
|
|
/* FIXME: this ought to return the lock count in CX (go figure...) */
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalCompact (KERNEL.25)
|
|
*/
|
|
DWORD GlobalCompact( DWORD desired )
|
|
{
|
|
return GLOBAL_MAX_ALLOC_SIZE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalFreeAll (KERNEL.26)
|
|
*/
|
|
void GlobalFreeAll( HANDLE owner )
|
|
{
|
|
DWORD i;
|
|
GLOBALARENA *pArena;
|
|
|
|
pArena = pGlobalArena;
|
|
for (i = 0; i < globalArenaSize; i++, pArena++)
|
|
{
|
|
if ((pArena->size != 0) && (pArena->hOwner == owner))
|
|
GlobalFree( pArena->handle );
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalWire (KERNEL.111)
|
|
*/
|
|
SEGPTR GlobalWire( HGLOBAL handle )
|
|
{
|
|
return WIN16_GlobalLock( handle );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalUnWire (KERNEL.112)
|
|
*/
|
|
BOOL GlobalUnWire( HGLOBAL handle )
|
|
{
|
|
return GlobalUnlock( handle );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalDOSAlloc (KERNEL.184)
|
|
*/
|
|
DWORD GlobalDOSAlloc( DWORD size )
|
|
{
|
|
WORD sel = GlobalAlloc( GMEM_FIXED, size );
|
|
if (!sel) return 0;
|
|
return MAKELONG( sel, sel /* this one ought to be a real-mode segment */ );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalDOSFree (KERNEL.185)
|
|
*/
|
|
WORD GlobalDOSFree( WORD sel )
|
|
{
|
|
return GlobalFree( GlobalHandle(sel) ) ? sel : 0;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetSwapAreaSize (KERNEL.106)
|
|
*/
|
|
LONG SetSwapAreaSize( WORD size )
|
|
{
|
|
dprintf_global(stdnimp, "STUB: SetSwapAreaSize(%d)\n", size );
|
|
return MAKELONG( size, 0xffff );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalLRUOldest (KERNEL.163)
|
|
*/
|
|
HGLOBAL GlobalLRUOldest( HGLOBAL handle )
|
|
{
|
|
dprintf_global( stddeb, "GlobalLRUOldest: %04x\n", handle );
|
|
if (handle == (HGLOBAL)-1) handle = CURRENT_DS;
|
|
return handle;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalLRUNewest (KERNEL.164)
|
|
*/
|
|
HGLOBAL GlobalLRUNewest( HGLOBAL handle )
|
|
{
|
|
dprintf_global( stddeb, "GlobalLRUNewest: %04x\n", handle );
|
|
if (handle == (HGLOBAL)-1) handle = CURRENT_DS;
|
|
return handle;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetFreeSpace (KERNEL.169)
|
|
*/
|
|
DWORD GetFreeSpace( UINT wFlags )
|
|
{
|
|
return GLOBAL_MAX_ALLOC_SIZE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalPageLock (KERNEL.191)
|
|
*/
|
|
WORD GlobalPageLock( HGLOBAL handle )
|
|
{
|
|
dprintf_global( stddeb, "GlobalPageLock: %04x\n", handle );
|
|
return ++(GET_ARENA_PTR(handle)->pageLockCount);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalPageUnlock (KERNEL.192)
|
|
*/
|
|
WORD GlobalPageUnlock( HGLOBAL handle )
|
|
{
|
|
dprintf_global( stddeb, "GlobalPageUnlock: %04x\n", handle );
|
|
return --(GET_ARENA_PTR(handle)->pageLockCount);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalFix (KERNEL.197)
|
|
*/
|
|
void GlobalFix( HGLOBAL handle )
|
|
{
|
|
dprintf_global( stddeb, "GlobalFix: %04x\n", handle );
|
|
GET_ARENA_PTR(handle)->lockCount++;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalUnfix (KERNEL.198)
|
|
*/
|
|
void GlobalUnfix( HGLOBAL handle )
|
|
{
|
|
dprintf_global( stddeb, "GlobalUnfix: %04x\n", handle );
|
|
GET_ARENA_PTR(handle)->lockCount--;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* FarSetOwner (KERNEL.403)
|
|
*/
|
|
void FarSetOwner( HANDLE handle, WORD hOwner )
|
|
{
|
|
GET_ARENA_PTR(handle)->hOwner = hOwner;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* FarGetOwner (KERNEL.404)
|
|
*/
|
|
WORD FarGetOwner( HANDLE handle )
|
|
{
|
|
return GET_ARENA_PTR(handle)->hOwner;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalHandleToSel (TOOLHELP.50)
|
|
*/
|
|
WORD GlobalHandleToSel( HGLOBAL handle )
|
|
{
|
|
dprintf_toolhelp( stddeb, "GlobalHandleToSel: %04x\n", handle );
|
|
if (!handle) return 0;
|
|
#ifdef CONFIG_IPC
|
|
if (is_dde_handle(handle)) return DDE_GlobalHandleToSel(handle);
|
|
#endif
|
|
if (!(handle & 7))
|
|
{
|
|
fprintf( stderr, "Program attempted invalid selector conversion\n" );
|
|
return handle - 1;
|
|
}
|
|
return handle | 7;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalFirst (TOOLHELP.51)
|
|
*/
|
|
BOOL GlobalFirst( GLOBALENTRY *pGlobal, WORD wFlags )
|
|
{
|
|
if (wFlags == GLOBAL_LRU) return FALSE;
|
|
pGlobal->dwNext = 0;
|
|
return GlobalNext( pGlobal, wFlags );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalNext (TOOLHELP.52)
|
|
*/
|
|
BOOL GlobalNext( GLOBALENTRY *pGlobal, WORD wFlags)
|
|
{
|
|
GLOBALARENA *pArena;
|
|
|
|
if (pGlobal->dwNext >= globalArenaSize) return FALSE;
|
|
pArena = pGlobalArena + pGlobal->dwNext;
|
|
if (wFlags == GLOBAL_FREE) /* only free blocks */
|
|
{
|
|
int i;
|
|
for (i = pGlobal->dwNext; i < globalArenaSize; i++, pArena++)
|
|
if (pArena->size == 0) break; /* block is free */
|
|
if (i >= globalArenaSize) return FALSE;
|
|
pGlobal->dwNext = i;
|
|
}
|
|
|
|
pGlobal->dwAddress = pArena->base;
|
|
pGlobal->dwBlockSize = pArena->size;
|
|
pGlobal->hBlock = pArena->handle;
|
|
pGlobal->wcLock = pArena->lockCount;
|
|
pGlobal->wcPageLock = pArena->pageLockCount;
|
|
pGlobal->wFlags = (GetCurrentPDB() == pArena->hOwner);
|
|
pGlobal->wHeapPresent = FALSE;
|
|
pGlobal->hOwner = pArena->hOwner;
|
|
pGlobal->wType = GT_UNKNOWN;
|
|
pGlobal->wData = 0;
|
|
pGlobal->dwNext++;
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalInfo (TOOLHELP.53)
|
|
*/
|
|
BOOL GlobalInfo( GLOBALINFO *pInfo )
|
|
{
|
|
int i;
|
|
GLOBALARENA *pArena;
|
|
|
|
pInfo->wcItems = globalArenaSize;
|
|
pInfo->wcItemsFree = 0;
|
|
pInfo->wcItemsLRU = 0;
|
|
for (i = 0, pArena = pGlobalArena; i < globalArenaSize; i++, pArena++)
|
|
if (pArena->size == 0) pInfo->wcItemsFree++;
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalEntryHandle (TOOLHELP.54)
|
|
*/
|
|
BOOL GlobalEntryHandle( GLOBALENTRY *pGlobal, HGLOBAL hItem )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GlobalEntryModule (TOOLHELP.55)
|
|
*/
|
|
BOOL GlobalEntryModule( GLOBALENTRY *pGlobal, HMODULE hModule, WORD wSeg )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* MemManInfo (TOOLHELP.72)
|
|
*/
|
|
BOOL MemManInfo( MEMMANINFO *pInfo )
|
|
{
|
|
#ifdef linux
|
|
/* FIXME: does not take into account the dwSize member
|
|
* could be corrupting memory therefore
|
|
*/
|
|
/* shamefully stolen from free */
|
|
DWORD availmem = 0;
|
|
DWORD totalmem = 0;
|
|
FILE *meminfo;
|
|
char buf[80];
|
|
int col[5];
|
|
int n;
|
|
|
|
if ((meminfo = fopen("/proc/meminfo", "r")) < 0) {
|
|
perror("wine: open");
|
|
return FALSE;
|
|
}
|
|
|
|
fgets(buf, 80, meminfo); /* read first line */
|
|
while ( fgets(buf, 80, meminfo) ) {
|
|
n = sscanf( buf, "%*s %d %d %d %d %d", &col[0], &col[1], &col[2], &col[3], &col[4]);
|
|
if ( n < 1 ) continue; /* escape the loop at the top */
|
|
totalmem += col[0];
|
|
availmem += col[2] + col[4];
|
|
}
|
|
|
|
fprintf(stderr,"MemManInfo called with dwSize = %ld\n",pInfo->dwSize);
|
|
if (pInfo->dwSize) {
|
|
pInfo->wPageSize = getpagesize();
|
|
pInfo->dwLargestFreeBlock = availmem;
|
|
pInfo->dwTotalLinearSpace = totalmem / pInfo->wPageSize;
|
|
pInfo->dwMaxPagesAvailable = pInfo->dwLargestFreeBlock / pInfo->wPageSize;
|
|
pInfo->dwMaxPagesLockable = pInfo->dwMaxPagesLockable;
|
|
/* FIXME: the next three are not quite correct */
|
|
pInfo->dwTotalUnlockedPages = pInfo->dwMaxPagesAvailable;
|
|
pInfo->dwFreePages = pInfo->dwMaxPagesAvailable;
|
|
pInfo->dwTotalPages = pInfo->dwMaxPagesAvailable;
|
|
/* FIXME: the three above are not quite correct */
|
|
pInfo->dwFreeLinearSpace = pInfo->dwMaxPagesAvailable;
|
|
pInfo->dwSwapFilePages = 0L;
|
|
}
|
|
return TRUE;
|
|
#else
|
|
return TRUE;
|
|
#endif
|
|
}
|
|
|
|
/***********************************************************************
|
|
* GlobalAlloc32
|
|
* implements GlobalAlloc (KERNEL32.316)
|
|
* LocalAlloc (KERNEL32.372)
|
|
*/
|
|
void *GlobalAlloc32(int flags,int size)
|
|
{
|
|
dprintf_global(stddeb,"GlobalAlloc32(%x,%x)\n",flags,size);
|
|
return malloc(size);
|
|
}
|