mirror of
https://github.com/reactos/wine.git
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342 lines
8.9 KiB
C
342 lines
8.9 KiB
C
/*
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* Helper functions for ntdll
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*
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* Copyright 2000 Juergen Schmied
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* Copyright 2010 Marcus Meissner
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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 <time.h>
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#include <math.h>
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#ifdef HAVE_SYS_UTSNAME_H
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#include <sys/utsname.h>
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#endif
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#include "wine/library.h"
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#include "wine/debug.h"
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#include "ntdll_misc.h"
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WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
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#if defined(__GNUC__) && defined(__i386__)
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#define DO_FPU(x,y) __asm__ __volatile__( x " %0;fwait" : "=m" (y) : )
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#define POP_FPU(x) DO_FPU("fstpl",x)
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#endif
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LPCSTR debugstr_ObjectAttributes(const OBJECT_ATTRIBUTES *oa)
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{
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if (!oa) return "<null>";
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return wine_dbg_sprintf( "{name=%s, attr=0x%08x, hRoot=%p, sd=%p}\n",
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debugstr_us(oa->ObjectName), oa->Attributes,
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oa->RootDirectory, oa->SecurityDescriptor );
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}
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LPCSTR debugstr_us( const UNICODE_STRING *us )
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{
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if (!us) return "<null>";
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return debugstr_wn(us->Buffer, us->Length / sizeof(WCHAR));
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}
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/*********************************************************************
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* _ftol (NTDLL.@)
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*
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* VERSION
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* [GNUC && i386]
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*/
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#if defined(__GNUC__) && defined(__i386__)
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LONGLONG CDECL NTDLL__ftol(void)
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{
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/* don't just do DO_FPU("fistp",retval), because the rounding
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* mode must also be set to "round towards zero"... */
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double fl;
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POP_FPU(fl);
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return (LONGLONG)fl;
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}
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#endif /* defined(__GNUC__) && defined(__i386__) */
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/*********************************************************************
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* _ftol (NTDLL.@)
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*
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* FIXME
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* Should be register function
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* VERSION
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* [!GNUC && i386]
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*/
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#if !defined(__GNUC__) && defined(__i386__)
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LONGLONG CDECL NTDLL__ftol(double fl)
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{
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FIXME("should be register function\n");
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return (LONGLONG)fl;
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}
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#endif /* !defined(__GNUC__) && defined(__i386__) */
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/*********************************************************************
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* _CIpow (NTDLL.@)
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* VERSION
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* [GNUC && i386]
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*/
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#if defined(__GNUC__) && defined(__i386__)
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double CDECL NTDLL__CIpow(void)
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{
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double x,y;
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POP_FPU(y);
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POP_FPU(x);
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return pow(x,y);
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}
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#endif /* defined(__GNUC__) && defined(__i386__) */
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/*********************************************************************
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* _CIpow (NTDLL.@)
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*
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* FIXME
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* Should be register function
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*
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* VERSION
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* [!GNUC && i386]
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*/
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#if !defined(__GNUC__) && defined(__i386__)
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double CDECL NTDLL__CIpow(double x,double y)
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{
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FIXME("should be register function\n");
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return pow(x,y);
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}
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#endif /* !defined(__GNUC__) && defined(__i386__) */
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/*********************************************************************
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* wine_get_version (NTDLL.@)
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*/
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const char * CDECL NTDLL_wine_get_version(void)
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{
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return wine_get_version();
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}
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/*********************************************************************
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* wine_get_build_id (NTDLL.@)
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*/
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const char * CDECL NTDLL_wine_get_build_id(void)
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{
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return wine_get_build_id();
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}
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/*********************************************************************
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* wine_get_host_version (NTDLL.@)
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*/
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void CDECL NTDLL_wine_get_host_version( const char **sysname, const char **release )
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{
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#ifdef HAVE_SYS_UTSNAME_H
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static struct utsname buf;
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static int init_done;
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if (!init_done)
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{
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uname( &buf );
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init_done = 1;
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}
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if (sysname) *sysname = buf.sysname;
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if (release) *release = buf.release;
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#else
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if (sysname) *sysname = "";
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if (release) *release = "";
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#endif
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}
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/*********************************************************************
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* abs (NTDLL.@)
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*/
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int CDECL NTDLL_abs( int i )
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{
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return abs( i );
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}
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/*********************************************************************
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* labs (NTDLL.@)
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*/
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LONG CDECL NTDLL_labs( LONG i )
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{
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return labs( i );
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}
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/*********************************************************************
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* atan (NTDLL.@)
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*/
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double CDECL NTDLL_atan( double d )
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{
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return atan( d );
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}
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/*********************************************************************
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* ceil (NTDLL.@)
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*/
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double CDECL NTDLL_ceil( double d )
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{
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return ceil( d );
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}
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/*********************************************************************
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* cos (NTDLL.@)
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*/
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double CDECL NTDLL_cos( double d )
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{
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return cos( d );
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}
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/*********************************************************************
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* fabs (NTDLL.@)
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*/
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double CDECL NTDLL_fabs( double d )
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{
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return fabs( d );
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}
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/*********************************************************************
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* floor (NTDLL.@)
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*/
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double CDECL NTDLL_floor( double d )
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{
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return floor( d );
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}
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/*********************************************************************
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* log (NTDLL.@)
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*/
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double CDECL NTDLL_log( double d )
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{
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return log( d );
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}
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/*********************************************************************
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* pow (NTDLL.@)
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*/
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double CDECL NTDLL_pow( double x, double y )
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{
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return pow( x, y );
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}
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/*********************************************************************
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* sin (NTDLL.@)
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*/
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double CDECL NTDLL_sin( double d )
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{
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return sin( d );
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}
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/*********************************************************************
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* sqrt (NTDLL.@)
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*/
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double CDECL NTDLL_sqrt( double d )
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{
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return sqrt( d );
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}
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/*********************************************************************
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* tan (NTDLL.@)
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*/
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double CDECL NTDLL_tan( double d )
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{
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return tan( d );
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}
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/* Merge Sort. Algorithm taken from http://www.linux-related.de/index.html?/coding/sort/sort_merge.htm */
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static void
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NTDLL_mergesort( void *arr, void *barr, size_t elemsize, int(__cdecl *compar)(const void *, const void *),
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size_t left, size_t right )
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{
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if(right>left) {
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size_t i, j, k, m;
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m=left+(right-left)/2;
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NTDLL_mergesort( arr, barr, elemsize, compar, left, m);
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NTDLL_mergesort( arr, barr, elemsize, compar, m+1, right);
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#define X(a,i) ((char*)a+elemsize*(i))
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for (i=m+1; i>left; i--)
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memcpy (X(barr,(i-1)),X(arr,(i-1)),elemsize);
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for (j=m; j<right; j++)
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memcpy (X(barr,(right+m-j)),X(arr,(j+1)),elemsize);
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/* i=left; j=right; */
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for (k=left; i<=m && j>m; k++) {
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if (i==j || compar(X(barr,i),X(barr,j))<=0) {
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memcpy(X(arr,k),X(barr,i),elemsize);
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i++;
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} else {
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memcpy(X(arr,k),X(barr,j),elemsize);
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j--;
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}
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}
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for (; i<=m; i++, k++)
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memcpy(X(arr,k),X(barr,i),elemsize);
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for (; j>m; j--, k++)
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memcpy(X(arr,k),X(barr,j),elemsize);
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}
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#undef X
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}
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/*********************************************************************
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* qsort (NTDLL.@)
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*/
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void __cdecl NTDLL_qsort( void *base, size_t nmemb, size_t size,
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int(__cdecl *compar)(const void *, const void *) )
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{
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void *secondarr;
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if (nmemb < 2 || size == 0) return;
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secondarr = RtlAllocateHeap (GetProcessHeap(), 0, nmemb*size);
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NTDLL_mergesort( base, secondarr, size, compar, 0, nmemb-1 );
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RtlFreeHeap (GetProcessHeap(),0, secondarr);
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}
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/*********************************************************************
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* bsearch (NTDLL.@)
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*/
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void * __cdecl
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NTDLL_bsearch( const void *key, const void *base, size_t nmemb,
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size_t size, int (__cdecl *compar)(const void *, const void *) )
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{
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ssize_t min = 0;
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ssize_t max = nmemb - 1;
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while (min <= max)
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{
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ssize_t cursor = (min + max) / 2;
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int ret = compar(key,(const char *)base+(cursor*size));
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if (!ret)
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return (char*)base+(cursor*size);
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if (ret < 0)
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max = cursor - 1;
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else
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min = cursor + 1;
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}
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return NULL;
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}
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/*********************************************************************
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* _lfind (NTDLL.@)
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*/
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void * __cdecl _lfind( const void *key, const void *base, unsigned int *nmemb,
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size_t size, int(__cdecl *compar)(const void *, const void *) )
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{
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size_t i, n = *nmemb;
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for (i=0;i<n;i++)
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if (!compar(key,(char*)base+(size*i)))
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return (char*)base+(size*i);
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return NULL;
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}
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