src/include/unistd.h

   1 #ifndef _UNISTD_H
   2 #define _UNISTD_H
   3
   4 #include <stddef.h>
   5 #include <stdarg.h>
   6
   7 extern int execv ( const char *command, char * const argv[] );
   8
   9 /**
  10  * Execute command
  11  *
  12  * @v command           Command name
  13  * @v arg ...           Argument list (starting with argv[0])
  14  * @ret rc              Command exit status
  15  *
  16  * This is a front end to execv().
  17  */
  18 #define execl( command, arg, ... ) ( {                                  \
  19                 char * const argv[] = { (arg), ## __VA_ARGS__ };        \
  20                 int rc = execv ( (command), argv );                     \
  21                 rc;                                                     \
  22         } )
  23
  24 /* Pick up udelay() */
  25 #include <gpxe/timer.h>
  26
  27 /*
  28  * sleep() prototype is defined by POSIX.1.  usleep() prototype is
  29  * defined by 4.3BSD.  udelay() and mdelay() prototypes are chosen to
  30  * be reasonably sensible.
  31  *
  32  */
  33
  34 extern unsigned int sleep ( unsigned int seconds );
  35 extern void mdelay ( unsigned long msecs );
  36
  37 static inline __always_inline void usleep ( unsigned long usecs ) {
  38         udelay ( usecs );
  39 }
  40
  41 #endif /* _UNISTD_H */