Sweden-Number/scheduler/sysdeps.c

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Release 980118 Sun Jan 18 17:05:58 1998 Alexandre Julliard <julliard@lrc.epfl.ch> * [include/stackframe.h] [tools/build.c] Some cleanups in stack frame building. * [misc/port.c] Implemented clone() wrapper for libc5 users. * [scheduler/mutex.c] [scheduler/synchro.c] Implemented abandoned mutexes. * [scheduler/process.c] [scheduler/thread.c] We now create a process and a thread structure as soon as possible during initialization. * [scheduler/thread.c] [scheduler/sysdeps.c] Moved system-specific thread handling to sysdeps.c. Fri Jan 16 10:45:15 1998 Marcus Meissner <msmeissn@cip.informatik.uni-erlangen.de> * [graphics/ddraw.c][include/ddraw.h] Surface handling enhanced. Some stuff already works ;) * [multimedia/dsound.c][include/dsound.h] Implemented using the Open Sound System. Slowly starts to work (sounds terrible for some programs). * [configure.in][multimedia/audio.c][include/config.h.in] Added check for OpenSoundSystem, fixed -lXxf86dga check. Replaced OS #ifdefs by #ifdef HAVE_OSS in mm/audio.c. * [if1632/relay.c][relay32/relay386.c] Do not print control characters for 'str' or 'wstr' args. * [misc/registry.c] "" seems to equals NULL in keynames. Replace where needed. Seems to help the win95 regedit.exe... * [win32/newfns.c] Implemented QueryPerformance* using gettimeofday(2) (should be done using the pentium timers probably). * [tools/ipcl] Removed useless open_pipe construct. Sun Jan 11 17:10:02 1998 Huw D M Davies <h.davies1@physics.oxford.ac.uk> * [objects/region.c] [include/region.h] [graphics/x11drv/clipping.c] Regions are now internal to Wine. The basis of this code is taken from the X11 distribution. GetRegionData() is implemented as is ExtCreateRegion() (without Xforms). CreatePolyPolygonRgn() should behave correctly now. * [objects/metafile.c] [graphics/metafiledrv/graphics.c] [graphics/metafiledrv/init.c] [include/metafile.h] [include/metafiledrv.h] Playback of META_CREATEREGION should now work. Implemented recording of META_CREATEREGION and META_PAINTREGION. * [graphics/x11drv/graphics.c] FillRgn() (and therefore its friends) respect logical co-ords. Wed Jan 7 01:21:45 1998 Steinar Hamre <steinarh@stud.fim.ntnu.no> * [configure.in] [include/acconfig.h] [tools/build.c] Now checking whether to use .string or .ascii. * [configure.in] [include/acconfig.h] [scheduler/critsection.c] Defining union semun if this is not available from header files. * [misc/lstr.c] Moved wine's own header files below <wctype.h> to avoid parse error on Solaris. Sun Jan 4 15:38:07 1998 Andrew Taylor <ataylor@cadvision.com> * [multimedia/mmsystem.c] [multimedia/mmio.c] Implemented mmioSendMessage and rearranged the mmio subsystem in terms of this function. Wed Dec 24 00:51:29 1997 Charles Duffy <cduffy@bigfoot.com> * [windows/clipboard.c] [relay32/user32.spec] GetPriorityClipboardFormat32 now has something other than just a stub. I have no idea if it works (can't test until SetClipboardData is finished) but HEdit likes things a lot more this way.
1998-01-18 19:01:49 +01:00
/*
* System-dependent scheduler support
*
* Copyright 1998 Alexandre Julliard
*/
#include <signal.h>
#include <stdio.h>
#include <unistd.h>
#include "thread.h"
#ifdef __linux__
# ifdef HAVE_SCHED_H
# include <sched.h>
# endif
# ifndef CLONE_VM
# define CLONE_VM 0x00000100
# define CLONE_FS 0x00000200
# define CLONE_FILES 0x00000400
# define CLONE_SIGHAND 0x00000800
# define CLONE_PID 0x00001000
/* If we didn't get the flags, we probably didn't get the prototype either */
extern int clone( int (*fn)(void *arg), void *stack, int flags, void *arg );
# endif /* CLONE_VM */
#endif /* __linux__ */
#ifdef __linux__
/***********************************************************************
* __errno_location
*
* Get the per-thread errno location.
*/
int *__errno_location()
{
static int static_errno;
THDB *thdb = THREAD_Current();
if (!thdb) return &static_errno;
return &thdb->thread_errno;
}
/***********************************************************************
* __h_errno_location
*
* Get the per-thread h_errno location.
*/
int *__h_errno_location()
{
static int static_h_errno;
THDB *thdb = THREAD_Current();
if (!thdb) return &static_h_errno;
return &thdb->thread_h_errno;
}
/***********************************************************************
* SYSDEPS_StartThread
*
* Startup routine for a new thread.
*/
static void SYSDEPS_StartThread( THDB *thdb )
{
LPTHREAD_START_ROUTINE func = (LPTHREAD_START_ROUTINE)thdb->entry_point;
thdb->unix_pid = getpid();
SET_FS( thdb->teb_sel );
ExitThread( func( thdb->entry_arg ) );
}
#endif /* __linux__ */
/***********************************************************************
* SYSDEPS_SpawnThread
*
* Start running a new thread.
* Return -1 on error, 0 if OK.
*/
int SYSDEPS_SpawnThread( THDB *thread )
{
#ifdef __linux__
if (clone( (int (*)(void *))SYSDEPS_StartThread, thread->teb.stack_top,
CLONE_VM | CLONE_FS | CLONE_FILES | SIGCHLD, thread ) < 0)
return -1;
#else
fprintf( stderr, "CreateThread: stub\n" );
#endif /* __linux__ */
return 0;
}
/***********************************************************************
* SYSDEPS_ExitThread
*
* Exit a running thread; must not return.
*/
void SYSDEPS_ExitThread(void)
{
_exit( 0 );
}
/**********************************************************************
* NtCurrentTeb (NTDLL.89)
*/
TEB * WINAPI NtCurrentTeb(void)
{
#ifdef __i386__
TEB *teb;
WORD ds, fs;
/* Check if we have a current thread */
GET_DS( ds );
GET_FS( fs );
if (fs == ds) return NULL; /* FIXME: should be an assert */
/* Get the TEB self-pointer */
__asm__( ".byte 0x64\n\tmovl (%1),%0"
: "=r" (teb) : "r" (&((TEB *)0)->self) );
return teb;
#else
if (!pCurrentThread) return NULL;
return &pCurrentThread->teb;
#endif /* __i386__ */
}