b308f56ac2
* harbour/include/hbatomic.h
* removed 'static inline' from OpenWatcom ASM functions defined
by '#pragma aux ...' to make OpenWatcom < 1.8 happy.
Version 1.8 ignores 'static inline' attributes in such declarations.
* harbour/config/dos/watcom.mk
* harbour/utils/hbmk2/hbmk2.prg
* switched from DOS/4GW to DOS/32A extender. It's faster what is
noticeable also in final Harbour binaries, does not have DOS4G
command line limitations and has nice tools which allow to easy
set different runtime parameters (ss.exe) or compress final
executable (sc.exe)
BTW people having problem with maximum command line size in
OpenWatcom tools can replace DOS/4GW with DOS/32A in this tools
It can be made also globally by coping dos32a.exe to dos4gw.exe.
NOTE: I've found why DOS Harbour OpenWatcom application created
in my Linux box were not working. Just simply the directory
with DOS extender setup files was not in PATH.
Creating DOS OpenWatcom applications in other systems (i.e.
Linux or OS2) do not forget to add directory with DOS binaries
'%WATCOM%\binw' to PATH after directory with platform native
OpenWatcom binaries '%WATCOM%\bin*' or copy DOS extender
(dos32a.exe) to one of PATH directories.
* harbour/config/dos/watcom.mk
* added workaround for not included automatically by linker CLIB
library when Harbour is compiler in pure C mode. I hope it's only
temporary hack which we can remove in the future. I haven't added
it to hbmk2 so linking DOS applications using hbmk2 user will have
to add -lclib3r to hbmk2 parameters.
* harbour/config/common/watcom.mk
* disable DOS/32A banner messages
477 lines
15 KiB
C
477 lines
15 KiB
C
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* header file with functions for atomic operations
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*
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* Copyright 2008 Przemyslaw Czerpak <druzus / at / priv.onet.pl>
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* www - http://www.harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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#ifndef HB_ATOMIC_H_
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#define HB_ATOMIC_H_
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#include "hbdefs.h"
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#if defined( HB_OS_WIN )
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# include <windows.h>
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#elif defined( HB_OS_DARWIN )
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# include <libkern/OSAtomic.h>
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#elif defined( HB_OS_SUNOS )
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# include <atomic.h>
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#endif
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#if defined( __SVR4 )
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# include <thread.h>
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#endif
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#if defined( HB_OS_UNIX ) && !defined( __WATCOMC__ )
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# include <sched.h>
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#endif
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HB_EXTERN_BEGIN
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/* yield the processor */
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#if defined( HB_TASK_THREAD )
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# define HB_SCHED_YIELD() hb_taskYield()
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#elif defined( HB_OS_WIN )
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# define HB_SCHED_YIELD() Sleep( 0 )
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#elif defined( HB_OS_OS2 )
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# define HB_SCHED_YIELD() DosSleep( 0 )
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#elif defined( __SVR4 )
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# define HB_SCHED_YIELD() thr_yield()
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#elif defined( HB_OS_UNIX )
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# define HB_SCHED_YIELD() sched_yield()
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#else
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# define HB_SCHED_YIELD() sleep( 0 );
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#endif
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/* Inline assembler version of atomic operations on memory reference counters */
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#if defined( __GNUC__ )
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# if defined( HB_CPU_X86 ) || defined( HB_CPU_X86_64 )
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# if HB_COUNTER_SIZE == 4
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static __inline__ void hb_atomic_inc32( volatile int * p )
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{
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__asm__ __volatile__(
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"lock; incl %0\n"
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:"=m" (*p) :"m" (*p)
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);
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}
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static __inline__ int hb_atomic_dec32( volatile int * p )
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{
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unsigned char c;
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__asm__ __volatile__(
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"lock; decl %0\n"
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"sete %1\n"
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:"=m" (*p), "=qm" (c) :"m" (*p) : "memory"
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);
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return c == 0;
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}
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# define HB_ATOM_INC( p ) ( hb_atomic_inc32( ( volatile int * ) (p) ) )
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# define HB_ATOM_DEC( p ) ( hb_atomic_dec32( ( volatile int * ) (p) ) )
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# define HB_ATOM_GET( p ) (*(int volatile *)(p))
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# define HB_ATOM_SET( p, n ) do { *((int volatile *)(p)) = (n); } while(0)
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# elif HB_COUNTER_SIZE == 8
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static __inline__ void hb_atomic_inc64( volatile long long int * p )
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{
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__asm__ __volatile__(
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"lock; incq %0\n"
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:"=m" (*p) :"m" (*p)
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);
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}
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static __inline__ int hb_atomic_dec64( volatile long long int * p )
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{
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unsigned char c;
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__asm__ __volatile__(
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"lock; decq %0\n"
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"sete %1\n"
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:"=m" (*p), "=qm" (c) :"m" (*p) : "memory"
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);
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return c == 0;
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}
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# define HB_ATOM_INC( p ) ( hb_atomic_inc64( ( volatile long long int * ) (p) ) )
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# define HB_ATOM_DEC( p ) ( hb_atomic_dec64( ( volatile long long int * ) (p) ) )
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# define HB_ATOM_GET( p ) (*(long long int volatile *)(p))
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# define HB_ATOM_SET( p, n ) do { *((long long int volatile *)(p)) = (n); } while(0)
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# endif
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static __inline__ int hb_spinlock_trylock( volatile int * p )
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{
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int i = 1;
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__asm__ __volatile__(
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"xchgl %0, %1\n\t"
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: "=r" (i)
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: "m" (*p), "0" (i)
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: "memory"
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);
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return i;
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}
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static __inline__ void hb_spinlock_acquire( volatile int * l )
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{
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for( ;; )
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{
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if( !hb_spinlock_trylock( l ) )
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return;
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#ifdef HB_SPINLOCK_REPEAT
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if( !hb_spinlock_trylock( l ) )
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return;
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#endif
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HB_SCHED_YIELD();
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}
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}
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static __inline__ void hb_spinlock_release( volatile int * l )
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{
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*l = 0;
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}
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# define HB_SPINLOCK_T volatile int
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# define HB_SPINLOCK_INIT 0
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# define HB_SPINLOCK_ACQUIRE(l) hb_spinlock_acquire(l)
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# define HB_SPINLOCK_RELEASE(l) hb_spinlock_release(l)
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# elif ( ( __GNUC__ > 4 ) || ( __GNUC__ == 4 && __GNUC_MINOR__ >= 1) ) && \
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!defined( __MINGW32CE__ )
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# define HB_ATOM_INC( p ) __sync_add_and_fetch( (p), 1 )
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# define HB_ATOM_DEC( p ) __sync_sub_and_fetch( (p), 1 )
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# define HB_ATOM_GET( p ) ( *(p) )
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# define HB_ATOM_SET( p, n ) do { *(p) = (n); } while(0)
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static __inline__ void hb_spinlock_acquire( int * l )
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{
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for( ;; )
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{
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if( !__sync_lock_test_and_set( l, 1 ) )
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return;
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#ifdef HB_SPINLOCK_REPEAT
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if( !__sync_lock_test_and_set( l, 1 ) )
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return;
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#endif
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HB_SCHED_YIELD();
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}
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}
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# define HB_SPINLOCK_T int
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# define HB_SPINLOCK_INIT 0
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# define HB_SPINLOCK_ACQUIRE(l) hb_spinlock_acquire(l)
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# define HB_SPINLOCK_RELEASE(l) __sync_lock_release(l)
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# elif defined( HB_CPU_PPC )
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# if HB_COUNTER_SIZE == 4
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static __inline__ void hb_atomic_inc32( volatile int * p )
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{
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int i;
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__asm__ __volatile__(
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"1: lwarx %0,0,%2\n\t"
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" addic %0,%0,1\n\t"
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" stwcx. %0,0,%2\n\t"
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" bne- 1b\n\t"
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: "=&r" (i), "=m" (*p) : "r" (p), "m" (*p) : "cc"
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);
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}
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static __inline__ int hb_atomic_dec32( volatile int * p )
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{
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int i;
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__asm__ __volatile__(
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"1: lwarx %0,0,%1\n\t"
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" addic %0,%0,-1\n\t"
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" stwcx. %0,0,%1\n\t"
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" bne- 1b\n\t"
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" isync\n\t"
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: "=&r" (i) : "r" (p) : "cc", "memory"
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);
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return i;
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}
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# define HB_ATOM_INC( p ) ( hb_atomic_inc32( ( volatile int * ) (p) ) )
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# define HB_ATOM_DEC( p ) ( hb_atomic_dec32( ( volatile int * ) (p) ) )
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# define HB_ATOM_GET( p ) (*(int volatile *)(p))
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# define HB_ATOM_SET( p, n ) do { *((int volatile *)(p)) = (n); } while(0)
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# elif HB_COUNTER_SIZE == 8
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/* TODO: */
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# endif
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# endif /* ???CPU?? */
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#elif defined( _MSC_VER )
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# if defined( HB_CPU_X86 )
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# if HB_COUNTER_SIZE == 4
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static __inline void hb_atomic_inc32( volatile int * p )
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{
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__asm mov eax, p
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__asm lock inc dword ptr [eax]
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}
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static __inline int hb_atomic_dec32( volatile int * p )
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{
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unsigned char c;
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__asm mov eax, p
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__asm lock dec dword ptr [eax]
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__asm setne c
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return c;
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}
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# define HB_ATOM_INC( p ) ( hb_atomic_inc32( ( volatile int * ) (p) ) )
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# define HB_ATOM_DEC( p ) ( hb_atomic_dec32( ( volatile int * ) (p) ) )
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# define HB_ATOM_GET( p ) (*(int volatile *)(p))
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# define HB_ATOM_SET( p, n ) do { *((int volatile *)(p)) = (n); } while(0)
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# elif HB_COUNTER_SIZE == 8
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/* TODO: */
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# endif
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# endif /* x86 */
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#elif defined( __WATCOMC__ )
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# if defined( HB_CPU_X86 ) || defined( HB_CPU_X86_64 )
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# if HB_COUNTER_SIZE == 4
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void hb_atomic_inc32( volatile int * p );
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#pragma aux hb_atomic_inc32 = \
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"lock inc dword ptr [eax]" \
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parm [ eax ] modify exact [] ;
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unsigned char hb_atomic_dec32( volatile int * p );
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#pragma aux hb_atomic_dec32 = \
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"lock dec dword ptr [eax]", \
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"setne al" \
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parm [ eax ] value [ al ] modify exact [ al ] ;
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# define HB_ATOM_INC( p ) ( hb_atomic_inc32( ( volatile int * ) (p) ) )
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# define HB_ATOM_DEC( p ) ( hb_atomic_dec32( ( volatile int * ) (p) ) )
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# define HB_ATOM_GET( p ) (*(int volatile *)(p))
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# define HB_ATOM_SET( p, n ) do { *((int volatile *)(p)) = (n); } while(0)
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# elif HB_COUNTER_SIZE == 8
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/* TODO: */
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# endif
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int hb_spinlock_trylock( volatile int * p );
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#pragma aux hb_spinlock_trylock = \
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"mov eax, 1", \
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"xchg eax, dword ptr [edx]" \
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parm [ edx ] value [ eax ] modify exact [ eax ] ;
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static inline void hb_spinlock_acquire( volatile int * l )
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{
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for( ;; )
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{
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if( !hb_spinlock_trylock( l ) )
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return;
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#ifdef HB_SPINLOCK_REPEAT
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if( !hb_spinlock_trylock( l ) )
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return;
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#endif
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HB_SCHED_YIELD();
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}
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}
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static inline void hb_spinlock_release( volatile int * l )
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{
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*l = 0;
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}
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# define HB_SPINLOCK_T volatile int
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# define HB_SPINLOCK_INIT 0
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# define HB_SPINLOCK_ACQUIRE(l) hb_spinlock_acquire(l)
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# define HB_SPINLOCK_RELEASE(l) hb_spinlock_release(l)
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# endif /* x86 */
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#endif /* ??? C compiler ??? */
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#if defined( HB_OS_WIN )
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/* Atomic operations on memory reference counters */
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# if !defined( HB_ATOM_INC ) || !defined( HB_ATOM_DEC )
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# undef HB_ATOM_DEC
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# undef HB_ATOM_INC
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# undef HB_ATOM_GET
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# undef HB_ATOM_SET
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# if HB_COUNTER_SIZE == 8
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# define HB_ATOM_INC( p ) (InterlockedIncrement64((LONGLONG *)(p)))
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# define HB_ATOM_DEC( p ) (InterlockedDecrement64((LONGLONG *)(p)))
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# define HB_ATOM_GET( p ) (*(LONGLONG volatile *)(p))
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# define HB_ATOM_SET( p, n ) do { (*(LONGLONG volatile *)(p)) = (n); } while(0)
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# else
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# define HB_ATOM_INC( p ) (InterlockedIncrement((LONG *)(p)))
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# define HB_ATOM_DEC( p ) (InterlockedDecrement((LONG *)(p)))
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# define HB_ATOM_GET( p ) (*(LONG volatile *)(p))
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# define HB_ATOM_SET( p, n ) do { (*(LONG volatile *)(p)) = (n); } while(0)
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# endif
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# endif
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/* Spin locks */
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# if !defined( HB_SPINLOCK_T )
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# define HB_SPINLOCK_T volatile LONG
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# define HB_SPINLOCK_INIT 0
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# ifdef HB_SPINLOCK_REPEAT
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# define HB_SPINLOCK_ACQUIRE(l) do { \
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if( !InterlockedExchange( (LONG*)(l), 1 ) ) \
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break; \
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if( !InterlockedExchange( (LONG*)(l), 1 ) ) \
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break; \
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Sleep( 0 ); \
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} while(1)
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# else
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# define HB_SPINLOCK_ACQUIRE(l) do { \
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if( !InterlockedExchange( (LONG*)(l), 1 ) ) \
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break; \
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Sleep( 0 ); \
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} while(1)
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# endif
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# define HB_SPINLOCK_RELEASE(l) do { *(l) = 0; } while(0)
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# endif
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#elif defined( HB_OS_DARWIN )
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/* Atomic operations on memory reference counters */
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# if !defined( HB_ATOM_INC ) || !defined( HB_ATOM_DEC )
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# undef HB_ATOM_DEC
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# undef HB_ATOM_INC
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# undef HB_ATOM_GET
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# undef HB_ATOM_SET
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# if HB_COUNTER_SIZE == 8
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# define HB_ATOM_INC( p ) (OSAtomicIncrement64((int64_t *)(p)))
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# define HB_ATOM_DEC( p ) (OSAtomicDecrement64((int64_t *)(p)))
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# define HB_ATOM_GET( p ) (*(int64_t volatile *)(p))
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# define HB_ATOM_SET( p, n ) do { *((int64_t volatile *)(p)) = (n); } while(0)
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# else
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# define HB_ATOM_INC( p ) (OSAtomicIncrement32((int32_t *)(p)))
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# define HB_ATOM_DEC( p ) (OSAtomicDecrement32((int32_t *)(p)))
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# define HB_ATOM_GET( p ) (*(volatile int32_t *)(p))
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# define HB_ATOM_SET( p, n ) do { *((volatile int32_t *)(p)) = (n); } while(0)
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# endif
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# endif
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/* Spin locks */
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# if !defined( HB_SPINLOCK_T ) || 1 /* <= force using OSSpinLock */
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# undef HB_SPINLOCK_T
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# undef HB_SPINLOCK_INIT
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# undef HB_SPINLOCK_ACQUIRE
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# undef HB_SPINLOCK_RELEASE
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# define HB_SPINLOCK_T OSSpinLock
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# define HB_SPINLOCK_INIT OS_SPINLOCK_INIT
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# define HB_SPINLOCK_ACQUIRE(l) OSSpinLockLock(l)
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# define HB_SPINLOCK_RELEASE(l) OSSpinLockUnlock(l)
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# endif
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#elif defined( HB_OS_SUNOS )
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/* Atomic operations on memory reference counters */
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# if !defined( HB_ATOM_INC ) || !defined( HB_ATOM_DEC )
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# undef HB_ATOM_DEC
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# undef HB_ATOM_INC
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# undef HB_ATOM_GET
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# undef HB_ATOM_SET
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# define HB_ATOM_INC( p ) atomic_inc_ulong((ulong_t *)(p))
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# define HB_ATOM_DEC( p ) atomic_dec_ulong_nv((ulong_t *)(p))
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# define HB_ATOM_GET( p ) (*(ulong_t volatile *)(p))
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# define HB_ATOM_SET( p, n ) do { *((ulong_t volatile *)(p)) = (n); } while(0)
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# endif
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/* Spin locks */
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# if !defined( HB_SPINLOCK_T )
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# define HB_SPINLOCK_T volatile uint_t
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# define HB_SPINLOCK_INIT 0
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# ifdef HB_SPINLOCK_REPEAT
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# define HB_SPINLOCK_ACQUIRE(l) do { \
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if( !atomic_swap_uint( (l), 1 ) ) \
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break; \
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if( !atomic_swap_uint( (l), 1 ) ) \
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break; \
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thr_yield(); \
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} while(1)
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# else
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# define HB_SPINLOCK_ACQUIRE(l) do { \
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if( !atomic_swap_uint( (l), 1 ) ) \
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break; \
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thr_yield(); \
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} while(1)
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# endif
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# define HB_SPINLOCK_RELEASE(l) do { *(l) = 0; } while(0)
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# endif
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#endif /* HB_OS_??? */
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HB_EXTERN_END
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#endif /* HB_ATOMIC_H_ */
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