Moved 16-bit global heap, DOS memory and selector functions to

dlls/kernel.
This commit is contained in:
Alexandre Julliard 2003-09-18 20:58:41 +00:00
parent e69ef68fc2
commit ec39821750
7 changed files with 1236 additions and 1119 deletions

View file

@ -27,12 +27,14 @@ C_SRCS = \
computername.c \
console.c \
debugger.c \
dosmem.c \
editline.c \
except.c \
fiber.c \
file.c \
file16.c \
format_msg.c \
global16.c \
heap.c \
instr.c \
kernel_main.c \
@ -48,6 +50,7 @@ C_SRCS = \
relay16.c \
resource.c \
resource16.c \
selector.c \
snoop16.c \
stress.c \
string.c \

1046
dlls/kernel/global16.c Normal file

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@ -27,6 +27,17 @@
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <time.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_SYSCTL_H
#include <sys/sysctl.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "windef.h"
#include "winbase.h"
@ -957,3 +968,177 @@ void WINAPI FreeMappedBuffer( CONTEXT86 *context )
GlobalFree((HGLOBAL)buffer[0]);
}
}
/***********************************************************************
* 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 lpmem
) {
static MEMORYSTATUS cached_memstatus;
static int cache_lastchecked = 0;
SYSTEM_INFO si;
#ifdef linux
FILE *f;
#endif
#if defined(__FreeBSD__) || defined(__NetBSD__)
int *tmp;
int size_sys;
int mib[2] = { CTL_HW };
#endif
if (time(NULL)==cache_lastchecked) {
memcpy(lpmem,&cached_memstatus,sizeof(MEMORYSTATUS));
return;
}
cache_lastchecked = time(NULL);
lpmem->dwMemoryLoad = 0;
lpmem->dwTotalPhys = 16*1024*1024;
lpmem->dwAvailPhys = 16*1024*1024;
lpmem->dwTotalPageFile = 16*1024*1024;
lpmem->dwAvailPageFile = 16*1024*1024;
#ifdef linux
f = fopen( "/proc/meminfo", "r" );
if (f)
{
char buffer[256];
int total, used, free, shared, buffers, cached;
lpmem->dwLength = sizeof(MEMORYSTATUS);
lpmem->dwTotalPhys = lpmem->dwAvailPhys = 0;
lpmem->dwTotalPageFile = lpmem->dwAvailPageFile = 0;
while (fgets( buffer, sizeof(buffer), f ))
{
/* old style /proc/meminfo ... */
if (sscanf( buffer, "Mem: %d %d %d %d %d %d", &total, &used, &free, &shared, &buffers, &cached ))
{
lpmem->dwTotalPhys += total;
lpmem->dwAvailPhys += free + buffers + cached;
}
if (sscanf( buffer, "Swap: %d %d %d", &total, &used, &free ))
{
lpmem->dwTotalPageFile += total;
lpmem->dwAvailPageFile += free;
}
/* new style /proc/meminfo ... */
if (sscanf(buffer, "MemTotal: %d", &total))
lpmem->dwTotalPhys = total*1024;
if (sscanf(buffer, "MemFree: %d", &free))
lpmem->dwAvailPhys = free*1024;
if (sscanf(buffer, "SwapTotal: %d", &total))
lpmem->dwTotalPageFile = total*1024;
if (sscanf(buffer, "SwapFree: %d", &free))
lpmem->dwAvailPageFile = free*1024;
if (sscanf(buffer, "Buffers: %d", &buffers))
lpmem->dwAvailPhys += buffers*1024;
if (sscanf(buffer, "Cached: %d", &cached))
lpmem->dwAvailPhys += cached*1024;
}
fclose( f );
if (lpmem->dwTotalPhys)
{
DWORD TotalPhysical = lpmem->dwTotalPhys+lpmem->dwTotalPageFile;
DWORD AvailPhysical = lpmem->dwAvailPhys+lpmem->dwAvailPageFile;
lpmem->dwMemoryLoad = (TotalPhysical-AvailPhysical)
/ (TotalPhysical / 100);
}
}
#elif defined(__FreeBSD__) || defined(__NetBSD__)
mib[1] = HW_PHYSMEM;
sysctl(mib, 2, NULL, &size_sys, NULL, 0);
tmp = malloc(size_sys * sizeof(int));
sysctl(mib, 2, tmp, &size_sys, NULL, 0);
if (tmp && *tmp)
{
lpmem->dwTotalPhys = *tmp;
free(tmp);
mib[1] = HW_USERMEM;
sysctl(mib, 2, NULL, &size_sys, NULL, 0);
tmp = malloc(size_sys * sizeof(int));
sysctl(mib, 2, tmp, &size_sys, NULL, 0);
if (tmp && *tmp)
{
lpmem->dwAvailPhys = *tmp;
lpmem->dwTotalPageFile = *tmp;
lpmem->dwAvailPageFile = *tmp;
lpmem->dwMemoryLoad = lpmem->dwTotalPhys - lpmem->dwAvailPhys;
} else
{
lpmem->dwAvailPhys = lpmem->dwTotalPhys;
lpmem->dwTotalPageFile = lpmem->dwTotalPhys;
lpmem->dwAvailPageFile = lpmem->dwTotalPhys;
lpmem->dwMemoryLoad = 0;
}
free(tmp);
}
#endif
/* Some applications (e.g. QuickTime 6) crash if we tell them there
* is more than 2GB of physical memory.
*/
if (lpmem->dwTotalPhys>2U*1024*1024*1024)
{
lpmem->dwTotalPhys=2U*1024*1024*1024;
lpmem->dwAvailPhys=2U*1024*1024*1024;
}
/* FIXME: should do something for other systems */
GetSystemInfo(&si);
lpmem->dwTotalVirtual = (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 */
lpmem->dwAvailVirtual = lpmem->dwTotalVirtual-64*1024;
memcpy(&cached_memstatus,lpmem,sizeof(MEMORYSTATUS));
/* it appears some memory display programs want to divide by these values */
if(lpmem->dwTotalPageFile==0)
lpmem->dwTotalPageFile++;
if(lpmem->dwAvailPageFile==0)
lpmem->dwAvailPageFile++;
TRACE("<-- LPMEMORYSTATUS: dwLength %ld, dwMemoryLoad %ld, dwTotalPhys %ld, dwAvailPhys %ld,"
" dwTotalPageFile %ld, dwAvailPageFile %ld, dwTotalVirtual %ld, dwAvailVirtual %ld\n",
lpmem->dwLength, lpmem->dwMemoryLoad, lpmem->dwTotalPhys, lpmem->dwAvailPhys,
lpmem->dwTotalPageFile, lpmem->dwAvailPageFile, lpmem->dwTotalVirtual,
lpmem->dwAvailVirtual);
}
/***********************************************************************
* GlobalMemoryStatusEx (KERNEL32.@)
* A version of GlobalMemoryStatus that can deal with memory over 4GB
*
* RETURNS
* None
*/
BOOL WINAPI GlobalMemoryStatusEx( LPMEMORYSTATUSEX lpBuffer )
{
MEMORYSTATUS memstatus;
/* Because GlobalMemoryStatusEx is identical to GlobalMemoryStatus save
for one extra field in the struct, and the lack of a bug, we simply
call GlobalMemoryStatus and copy the values across. */
FIXME("we should emulate the 4GB bug here, as per MSDN\n");
GlobalMemoryStatus(&memstatus);
lpBuffer->dwMemoryLoad = memstatus.dwMemoryLoad;
lpBuffer->ullTotalPhys = memstatus.dwTotalPhys;
lpBuffer->ullAvailPhys = memstatus.dwAvailPhys;
lpBuffer->ullTotalPageFile = memstatus.dwTotalPageFile;
lpBuffer->ullAvailPageFile = memstatus.dwAvailPageFile;
lpBuffer->ullTotalVirtual = memstatus.dwTotalVirtual;
lpBuffer->ullAvailVirtual = memstatus.dwAvailVirtual;
/* 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 :(
*/
lpBuffer->ullAvailExtendedVirtual = 0;
return 1;
}

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@ -21,14 +21,12 @@ C_SRCS = \
$(TOPOBJDIR)/memory/environ.c \
$(TOPOBJDIR)/memory/global.c \
$(TOPOBJDIR)/memory/heap.c \
$(TOPOBJDIR)/memory/selector.c \
$(TOPOBJDIR)/memory/string.c \
$(TOPOBJDIR)/memory/virtual.c \
$(TOPOBJDIR)/misc/cpu.c \
$(TOPOBJDIR)/misc/options.c \
$(TOPOBJDIR)/misc/registry.c \
$(TOPOBJDIR)/misc/version.c \
$(TOPOBJDIR)/msdos/dosmem.c \
$(TOPOBJDIR)/msdos/dpmi.c \
$(TOPOBJDIR)/relay32/builtin32.c \
$(TOPOBJDIR)/relay32/relay386.c \

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