gen/FreeBSD/nice.c.patch

   1 Index: nice.c
   2 ===================================================================
   3 RCS file: /cvs/root/Libc/gen/FreeBSD/nice.c,v
   4 retrieving revision 1.2
   5 diff -u -d -b -w -p -r1.2 nice.c
   6 --- nice.c      2003/05/20 22:21:02     1.2
   7 +++ nice.c      2005/04/06 22:28:10
   8 @@ -42,7 +42,9 @@ __FBSDID("$FreeBSD: src/lib/libc/gen/nic
   9  #include <sys/resource.h>
  10  #include <errno.h>
  11  #include <unistd.h>
  12 -
  13 +#if __DARWIN_UNIX03
  14 +#include <limits.h>
  15 +#endif /* __DARWIN_UNIX03 */
  16  /*
  17   * Backwards compatible nice.
  18   */
  19 @@ -50,11 +52,18 @@ int
  20  nice(incr)
  21         int incr;
  22  {
  23 -       int prio;
  24 +       int prio, rv;
  25
  26         errno = 0;
  27         prio = getpriority(PRIO_PROCESS, 0);
  28         if (prio == -1 && errno)
  29                 return (-1);
  30 -       return (setpriority(PRIO_PROCESS, 0, prio + incr));
  31 +#if __DARWIN_UNIX03
  32 +       if (prio + incr > NZERO-1)
  33 +               incr = NZERO-1-prio;
  34 +#endif /* __DARWIN_UNIX03 */
  35 +       rv = setpriority(PRIO_PROCESS, 0, prio + incr);
  36 +       if (rv == -1 && errno == EACCES)
  37 +               errno = EPERM;
  38 +       return (rv == -1) ? rv : getpriority(PRIO_PROCESS, 0);
  39  }