rtai-core/include/xenomai/shadow.h

00001 /*
00002  * Copyright (C) 2001,2002,2003 Philippe Gerum <rpm@xenomai.org>.
00003  *
00004  * Xenomai is free software; you can redistribute it and/or modify it
00005  * under the terms of the GNU General Public License as published by
00006  * the Free Software Foundation; either version 2 of the License, or
00007  * (at your option) any later version.
00008  *
00009  * Xenomai is distributed in the hope that it will be useful, but
00010  * WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU General Public License
00015  * along with Xenomai; if not, write to the Free Software Foundation,
00016  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00017  *
00018  * As a special exception, the RTAI project gives permission
00019  * for additional uses of the text contained in its release of
00020  * Xenomai.
00021  *
00022  * The exception is that, if you link the Xenomai libraries with other
00023  * files to produce an executable, this does not by itself cause the
00024  * resulting executable to be covered by the GNU General Public License.
00025  * Your use of that executable is in no way restricted on account of
00026  * linking the Xenomai libraries code into it.
00027  *
00028  * This exception does not however invalidate any other reasons why
00029  * the executable file might be covered by the GNU General Public
00030  * License.
00031  *
00032  * This exception applies only to the code released by the
00033  * RTAI project under the name Xenomai.  If you copy code from other
00034  * RTAI project releases into a copy of Xenomai, as the General Public
00035  * License permits, the exception does not apply to the code that you
00036  * add in this way.  To avoid misleading anyone as to the status of
00037  * such modified files, you must delete this exception notice from
00038  * them.
00039  *
00040  * If you write modifications of your own for Xenomai, it is your
00041  * choice whether to permit this exception to apply to your
00042  * modifications. If you do not wish that, delete this exception
00043  * notice.
00044  */
00045 
00046 #ifndef _xenomai_shadow_h
00047 #define _xenomai_shadow_h
00048 
00049 #include <asm/rtai_xncall.h>
00050 
00051 #define XNSHADOW_MAXRQ 16
00052 
00053 #ifdef __cplusplus
00054 extern "C" {
00055 #endif
00056 
00057 struct xnthread;
00058 struct xnmutex;
00059 struct pt_regs;
00060 struct timespec;
00061 struct timeval;
00062 
00063 int xnshadow_init(void);
00064 
00065 void xnshadow_cleanup(void);
00066 
00067 void xnshadow_map(struct xnthread *thread,
00068                   const char *name,
00069                   int prio,
00070                   pid_t syncpid,
00071                   int *u_syncp,
00072                   unsigned magic,
00073                   struct xnmutex *imutex);
00074 
00075 void xnshadow_unmap(struct xnthread *thread);
00076 
00077 void xnshadow_relax(void);
00078 
00079 void xnshadow_harden(struct xnmutex *imutex);
00080 
00081 void xnshadow_renice(struct xnthread *thread);
00082 
00083 void xnshadow_start(struct xnthread *thread,
00084                     u_long mode,
00085                     void (*uentry)(void *cookie),
00086                     void *ucookie,
00087                     int resched);
00088 
00089 int xnshadow_register_skin(unsigned magic,
00090                            int nrcalls,
00091                            xnsysent_t *systab);
00092 
00093 int xnshadow_unregister_skin(int muxid);
00094 
00095 void xnshadow_exit(void);
00096 
00097 static inline void xnshadow_schedule (void) {
00098     XENOMAI_SYSCALL0(__xn_sys_sched);
00099 }
00100 
00101 unsigned long long xnshadow_ts2ticks(const struct timespec *v);
00102 
00103 void xnshadow_ticks2ts(unsigned long long ticks,
00104                        struct timespec *v);
00105 
00106 unsigned long long xnshadow_tv2ticks(const struct timeval *v);
00107 
00108 void xnshadow_ticks2tv(unsigned long long ticks,
00109                        struct timeval *v);
00110 
00111 #ifdef __cplusplus
00112 }
00113 #endif
00114 
00115 #endif /* !_xenomai_shadow_h */

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