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/*
* Helper functions for ntdll
*
* Copyright 2000 Juergen Schmied
* Copyright 2010 Marcus Meissner
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <time.h>
#include <math.h>
#ifdef HAVE_SYS_UTSNAME_H
#include <sys/utsname.h>
#endif
#include "wine/library.h"
#include "wine/debug.h"
#include "ntdll_misc.h"
#if defined(__GNUC__) && defined(__i386__)
#define DO_FPU(x,y) __asm__ __volatile__( x " %0;fwait" : "=m" (y) : )
#define POP_FPU(x) DO_FPU("fstpl",x)
#endif
LPCSTR debugstr_ObjectAttributes(const OBJECT_ATTRIBUTES *oa)
{
if (!oa) return "<null>";
return wine_dbg_sprintf( "{name=%s, attr=0x%08x, hRoot=%p, sd=%p}\n",
debugstr_us(oa->ObjectName), oa->Attributes,
oa->RootDirectory, oa->SecurityDescriptor );
}
LPCSTR debugstr_us( const UNICODE_STRING *us )
{
if (!us) return "<null>";
return debugstr_wn(us->Buffer, us->Length / sizeof(WCHAR));
}
/*********************************************************************
* wine_get_version (NTDLL.@)
*/
const char * CDECL NTDLL_wine_get_version(void)
{
return wine_get_version();
}
/*********************************************************************
* wine_get_build_id (NTDLL.@)
*/
const char * CDECL NTDLL_wine_get_build_id(void)
{
return wine_get_build_id();
}
/*********************************************************************
* wine_get_host_version (NTDLL.@)
*/
void CDECL NTDLL_wine_get_host_version( const char **sysname, const char **release )
{
#ifdef HAVE_SYS_UTSNAME_H
static struct utsname buf;
static BOOL init_done;
if (!init_done)
{
uname( &buf );
init_done = TRUE;
}
if (sysname) *sysname = buf.sysname;
if (release) *release = buf.release;
#else
if (sysname) *sysname = "";
if (release) *release = "";
#endif
}
/*********************************************************************
* abs (NTDLL.@)
*/
int CDECL NTDLL_abs( int i )
{
return abs( i );
}
/*********************************************************************
* labs (NTDLL.@)
*/
LONG CDECL NTDLL_labs( LONG i )
{
return labs( i );
}
/*********************************************************************
* atan (NTDLL.@)
*/
double CDECL NTDLL_atan( double d )
{
return atan( d );
}
/*********************************************************************
* ceil (NTDLL.@)
*/
double CDECL NTDLL_ceil( double d )
{
return ceil( d );
}
/*********************************************************************
* cos (NTDLL.@)
*/
double CDECL NTDLL_cos( double d )
{
return cos( d );
}
/*********************************************************************
* fabs (NTDLL.@)
*/
double CDECL NTDLL_fabs( double d )
{
return fabs( d );
}
/*********************************************************************
* floor (NTDLL.@)
*/
double CDECL NTDLL_floor( double d )
{
return floor( d );
}
/*********************************************************************
* log (NTDLL.@)
*/
double CDECL NTDLL_log( double d )
{
return log( d );
}
/*********************************************************************
* pow (NTDLL.@)
*/
double CDECL NTDLL_pow( double x, double y )
{
return pow( x, y );
}
/*********************************************************************
* sin (NTDLL.@)
*/
double CDECL NTDLL_sin( double d )
{
return sin( d );
}
/*********************************************************************
* sqrt (NTDLL.@)
*/
double CDECL NTDLL_sqrt( double d )
{
return sqrt( d );
}
/*********************************************************************
* tan (NTDLL.@)
*/
double CDECL NTDLL_tan( double d )
{
return tan( d );
}
#if defined(__GNUC__) && defined(__i386__)
#define FPU_DOUBLE(var) double var; \
__asm__ __volatile__( "fstpl %0;fwait" : "=m" (var) : )
#define FPU_DOUBLES(var1,var2) double var1,var2; \
__asm__ __volatile__( "fstpl %0;fwait" : "=m" (var2) : ); \
__asm__ __volatile__( "fstpl %0;fwait" : "=m" (var1) : )
/*********************************************************************
* _CIcos (NTDLL.@)
*/
double CDECL NTDLL__CIcos(void)
{
FPU_DOUBLE(x);
return NTDLL_cos(x);
}
/*********************************************************************
* _CIlog (NTDLL.@)
*/
double CDECL NTDLL__CIlog(void)
{
FPU_DOUBLE(x);
return NTDLL_log(x);
}
/*********************************************************************
* _CIpow (NTDLL.@)
*/
double CDECL NTDLL__CIpow(void)
{
FPU_DOUBLES(x,y);
return NTDLL_pow(x,y);
}
/*********************************************************************
* _CIsin (NTDLL.@)
*/
double CDECL NTDLL__CIsin(void)
{
FPU_DOUBLE(x);
return NTDLL_sin(x);
}
/*********************************************************************
* _CIsqrt (NTDLL.@)
*/
double CDECL NTDLL__CIsqrt(void)
{
FPU_DOUBLE(x);
return NTDLL_sqrt(x);
}
/*********************************************************************
* _ftol (NTDLL.@)
*/
LONGLONG CDECL NTDLL__ftol(void)
{
FPU_DOUBLE(x);
return (LONGLONG)x;
}
#endif /* defined(__GNUC__) && defined(__i386__) */
static void
NTDLL_mergesort( void *arr, void *barr, size_t elemsize, int(__cdecl *compar)(const void *, const void *),
size_t left, size_t right )
{
if(right>left) {
size_t i, j, k, m;
m=left+(right-left)/2;
NTDLL_mergesort( arr, barr, elemsize, compar, left, m);
NTDLL_mergesort( arr, barr, elemsize, compar, m+1, right);
#define X(a,i) ((char*)a+elemsize*(i))
for (k=left, i=left, j=m+1; i<=m && j<=right; k++) {
if (compar(X(arr, i), X(arr,j)) <= 0) {
memcpy(X(barr,k), X(arr, i), elemsize);
i++;
} else {
memcpy(X(barr,k), X(arr, j), elemsize);
j++;
}
}
if (i<=m)
memcpy(X(barr,k), X(arr,i), (m-i+1)*elemsize);
else
memcpy(X(barr,k), X(arr,j), (right-j+1)*elemsize);
memcpy(X(arr, left), X(barr, left), (right-left+1)*elemsize);
}
#undef X
}
/*********************************************************************
* qsort (NTDLL.@)
*/
void __cdecl NTDLL_qsort( void *base, size_t nmemb, size_t size,
int(__cdecl *compar)(const void *, const void *) )
{
void *secondarr;
if (nmemb < 2 || size == 0) return;
secondarr = RtlAllocateHeap (GetProcessHeap(), 0, nmemb*size);
NTDLL_mergesort( base, secondarr, size, compar, 0, nmemb-1 );
RtlFreeHeap (GetProcessHeap(),0, secondarr);
}
/*********************************************************************
* bsearch (NTDLL.@)
*/
void * __cdecl
NTDLL_bsearch( const void *key, const void *base, size_t nmemb,
size_t size, int (__cdecl *compar)(const void *, const void *) )
{
ssize_t min = 0;
ssize_t max = nmemb - 1;
while (min <= max)
{
ssize_t cursor = (min + max) / 2;
int ret = compar(key,(const char *)base+(cursor*size));
if (!ret)
return (char*)base+(cursor*size);
if (ret < 0)
max = cursor - 1;
else
min = cursor + 1;
}
return NULL;
}
/*********************************************************************
* _lfind (NTDLL.@)
*/
void * __cdecl _lfind( const void *key, const void *base, unsigned int *nmemb,
size_t size, int(__cdecl *compar)(const void *, const void *) )
{
size_t i, n = *nmemb;
for (i=0;i<n;i++)
if (!compar(key,(char*)base+(size*i)))
return (char*)base+(size*i);
return NULL;
}