minix/lib/libsys/proceventmask.c

   1 #include "syslib.h"
   2
   3 #include <string.h>
   4
   5 /*
   6  * Subscribe to a certain set of process events from PM.  Subsequent calls will
   7  * replace the set, and the empty set (a zero mask) will unsubscribe the caller
   8  * altogether.  Usage restrictions apply; see PM's event.c for details.  Return
   9  * OK or a negative error code.
  10  */
  11 int
  12 proceventmask(unsigned int mask)
  13 {
  14         message m;
  15
  16         memset(&m, 0, sizeof(m));
  17         m.m_lsys_pm_proceventmask.mask = mask;
  18
  19         return _taskcall(PM_PROC_NR, PM_PROCEVENTMASK, &m);
  20 }