os/busfault.h

   1 /*
   2  * Copyright © 2013 Keith Packard
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software and its
   5  * documentation for any purpose is hereby granted without fee, provided that
   6  * the above copyright notice appear in all copies and that both that copyright
   7  * notice and this permission notice appear in supporting documentation, and
   8  * that the name of the copyright holders not be used in advertising or
   9  * publicity pertaining to distribution of the software without specific,
  10  * written prior permission.  The copyright holders make no representations
  11  * about the suitability of this software for any purpose.  It is provided "as
  12  * is" without express or implied warranty.
  13  *
  14  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  15  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  16  * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  17  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  18  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  19  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  20  * OF THIS SOFTWARE.
  21  */
  22
  23 #ifndef _BUSFAULT_H_
  24 #define _BUSFAULT_H_
  25
  26 #include <dix-config.h>
  27
  28 #include <X11/Xdefs.h>
  29
  30 #include "misc.h"                         /* for TRUE/FALSE */
  31
  32 #ifdef HAVE_SIGACTION
  33
  34 #include <sys/types.h>
  35
  36 typedef void (*busfault_notify_ptr) (void *context);
  37
  38 struct busfault *
  39 busfault_register_mmap(void *addr, size_t size, busfault_notify_ptr notify, void *context);
  40
  41 void
  42 busfault_unregister(struct busfault *busfault);
  43
  44 void
  45 busfault_check(void);
  46
  47 Bool
  48 busfault_init(void);
  49
  50 #else
  51
  52 static inline void busfault_check(void) {}
  53 static inline Bool busfault_init(void) { return FALSE; }
  54
  55 #endif
  56
  57 #endif /* _BUSFAULT_H_ */