Sweden-Number/dlls/kernel/kernel_main.c

237 lines
6.8 KiB
C

/*
* Kernel initialization code
*
* Copyright 2000 Alexandre Julliard
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <ctype.h>
#include <stdarg.h>
#include <string.h>
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#include <time.h>
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#include <signal.h>
#include "windef.h"
#include "winbase.h"
#include "wincon.h"
#include "winternl.h"
#include "wownt32.h"
#include "wine/winbase16.h"
#include "wine/library.h"
#include "wincon.h"
#include "toolhelp.h"
#include "kernel_private.h"
#include "kernel16_private.h"
#include "console_private.h"
extern int __wine_set_signal_handler(unsigned, int (*)(unsigned));
static CRITICAL_SECTION ldt_section;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &ldt_section,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": ldt_section") }
};
static CRITICAL_SECTION ldt_section = { &critsect_debug, -1, 0, 0, 0, 0 };
static DWORD server_start_time;
/***********************************************************************
* locking for LDT routines
*/
static void ldt_lock(void)
{
RtlEnterCriticalSection( &ldt_section );
}
static void ldt_unlock(void)
{
RtlLeaveCriticalSection( &ldt_section );
}
/***********************************************************************
* KERNEL thread initialisation routine
*/
static void thread_attach(void)
{
/* allocate the 16-bit stack (FIXME: should be done lazily) */
HGLOBAL16 hstack = WOWGlobalAlloc16( GMEM_FIXED, 0x10000 );
kernel_get_thread_data()->stack_sel = GlobalHandleToSel16( hstack );
NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR( kernel_get_thread_data()->stack_sel,
0x10000 - sizeof(STACK16FRAME) );
}
/***********************************************************************
* KERNEL thread finalisation routine
*/
static void thread_detach(void)
{
/* free the 16-bit stack */
WOWGlobalFree16( kernel_get_thread_data()->stack_sel );
NtCurrentTeb()->WOW32Reserved = 0;
if (NtCurrentTeb()->Tib.SubSystemTib) TASK_ExitTask();
}
/***********************************************************************
* KERNEL process initialisation routine
*/
static BOOL process_attach(void)
{
SYSTEM_INFO si;
SYSTEM_TIMEOFDAY_INFORMATION sti;
NtQuerySystemInformation( SystemTimeOfDayInformation, &sti, sizeof(sti), NULL );
RtlTimeToSecondsSince1970( &sti.liKeBootTime, &server_start_time );
/* FIXME: should probably be done in ntdll */
GetSystemInfo( &si );
NtCurrentTeb()->Peb->NumberOfProcessors = si.dwNumberOfProcessors;
/* Setup registry locale information */
LOCALE_InitRegistry();
/* Setup computer name */
COMPUTERNAME_Init();
/* copy process information from ntdll */
ENV_CopyStartupInformation();
#ifdef __i386__
if (GetVersion() & 0x80000000)
{
/* create the shared heap for broken win95 native dlls */
HeapCreate( HEAP_SHARED, 0, 0 );
/* setup emulation of protected instructions from 32-bit code */
RtlAddVectoredExceptionHandler( TRUE, INSTR_vectored_handler );
}
#endif
/* initialize LDT locking */
wine_ldt_init_locking( ldt_lock, ldt_unlock );
/* finish the process initialisation for console bits, if needed */
__wine_set_signal_handler(SIGINT, CONSOLE_HandleCtrlC);
if (NtCurrentTeb()->Peb->ProcessParameters->ConsoleHandle == (HANDLE)1) /* FIXME */
{
HMODULE mod = GetModuleHandleA(0);
if (RtlImageNtHeader(mod)->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI)
AllocConsole();
}
/* else TODO for DETACHED_PROCESS:
* 1/ inherit console + handles
* 2/ create std handles, if handles are not inherited
* TBD when not using wineserver handles for console handles
*/
/* Create 16-bit task */
LoadLibrary16( "krnl386.exe" );
thread_attach();
TASK_CreateMainTask();
return TRUE;
}
/***********************************************************************
* KERNEL initialisation routine
*/
BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
{
switch(reason)
{
case DLL_PROCESS_ATTACH:
return process_attach();
case DLL_THREAD_ATTACH:
thread_attach();
break;
case DLL_THREAD_DETACH:
thread_detach();
break;
case DLL_PROCESS_DETACH:
WriteOutProfiles16();
break;
}
return TRUE;
}
/***********************************************************************
* MulDiv (KERNEL32.@)
* RETURNS
* Result of multiplication and division
* -1: Overflow occurred or Divisor was 0
*/
INT WINAPI MulDiv( INT nMultiplicand, INT nMultiplier, INT nDivisor)
{
LONGLONG ret;
if (!nDivisor) return -1;
/* We want to deal with a positive divisor to simplify the logic. */
if (nDivisor < 0)
{
nMultiplicand = - nMultiplicand;
nDivisor = -nDivisor;
}
/* If the result is positive, we "add" to round. else, we subtract to round. */
if ( ( (nMultiplicand < 0) && (nMultiplier < 0) ) ||
( (nMultiplicand >= 0) && (nMultiplier >= 0) ) )
ret = (((LONGLONG)nMultiplicand * nMultiplier) + (nDivisor/2)) / nDivisor;
else
ret = (((LONGLONG)nMultiplicand * nMultiplier) - (nDivisor/2)) / nDivisor;
if ((ret > 2147483647) || (ret < -2147483647)) return -1;
return ret;
}
/***********************************************************************
* GetTickCount (KERNEL32.@)
*
* Get the number of milliseconds the system has been running.
*
* PARAMS
* None.
*
* RETURNS
* The current tick count.
*
* NOTES
* -The value returned will wrap arounf every 2^32 milliseconds.
* -Under Windows, tick 0 is the moment at which the system is rebooted.
* Under Wine, tick 0 begins at the moment the wineserver process is started,
*/
DWORD WINAPI GetTickCount(void)
{
struct timeval t;
gettimeofday( &t, NULL );
return ((t.tv_sec - server_start_time) * 1000) + (t.tv_usec / 1000);
}