include/minix/sysutil.h

   1 #ifndef _EXTRALIB_H
   2 #define _EXTRALIB_H
   3
   4 /* Extra system library definitions to support device drivers and servers.
   5  *
   6  * Created:
   7  *      Mar 15, 2004 by Jorrit N. Herder
   8  *
   9  * Changes:
  10  *      May 31, 2005: added printf, kputc (relocated from syslib)
  11  *      May 31, 2005: added getuptime
  12  *      Mar 18, 2005: added tickdelay
  13  *      Oct 01, 2004: added env_parse, env_prefix, env_panic
  14  *      Jul 13, 2004: added fkey_ctl
  15  *      Apr 28, 2004: added report, panic
  16  *      Mar 31, 2004: setup like other libraries, such as syslib
  17  */
  18
  19 /*==========================================================================*
  20  * Miscellaneous helper functions.
  21  *==========================================================================*/
  22
  23 /* Environment parsing return values. */
  24 #define EP_BUF_SIZE   128       /* local buffer for env value */
  25 #define EP_UNSET        0       /* variable not set */
  26 #define EP_OFF          1       /* var = off */
  27 #define EP_ON           2       /* var = on (or field left blank) */
  28 #define EP_SET          3       /* var = 1:2:3 (nonblank field) */
  29 #define EP_EGETKENV     4       /* sys_getkenv() failed ... */
  30
  31 _PROTOTYPE( void env_setargs, (int argc, char *argv[])                  );
  32 _PROTOTYPE( int env_get_param, (char *key, char *value, int max_size)   );
  33 _PROTOTYPE( int env_prefix, (char *env, char *prefix)                   );
  34 _PROTOTYPE( void env_panic, (char *key)                                 );
  35 _PROTOTYPE( int env_parse, (char *env, char *fmt, int field, long *param,
  36                                 long min, long max)                     );
  37
  38 #define fkey_map(fkeys, sfkeys) fkey_ctl(FKEY_MAP, (fkeys), (sfkeys))
  39 #define fkey_unmap(fkeys, sfkeys) fkey_ctl(FKEY_UNMAP, (fkeys), (sfkeys))
  40 #define fkey_events(fkeys, sfkeys) fkey_ctl(FKEY_EVENTS, (fkeys), (sfkeys))
  41 _PROTOTYPE( int fkey_ctl, (int req, int *fkeys, int *sfkeys)            );
  42
  43 _PROTOTYPE( int printf, (const char *fmt, ...));
  44 _PROTOTYPE( void kputc, (int c));
  45 _PROTOTYPE( void report, (char *who, char *mess, int num));
  46 _PROTOTYPE( void panic, (char *who, char *mess, int num));
  47 _PROTOTYPE( int getuptime, (clock_t *ticks));
  48 _PROTOTYPE( int tickdelay, (clock_t ticks));
  49
  50 #endif /* _EXTRALIB_H */
  51