arch/.unmaintained/dummy/enable.c

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #define timeval sys_timeval
   7 #include <signal.h>
   8 #undef timeval
   9 #include <exec/execbase.h>
  10
  11 void en (void);
  12
  13 /******************************************************************************
  14
  15     NAME */
  16 #include <proto/exec.h>
  17
  18         AROS_LH0(void, Enable,
  19
  20 /*  LOCATION */
  21         struct ExecBase *, SysBase, 21, Exec)
  22
  23 /*  FUNCTION
  24         This function reenables the delivery of interrupts after a call to
  25         Disable().
  26
  27     INPUTS
  28         None.
  29
  30     RESULT
  31         None.
  32
  33     NOTES
  34         This function may be used from interrupts.
  35
  36         This function preserves all registers.
  37
  38     EXAMPLE
  39
  40     BUGS
  41
  42     SEE ALSO
  43         Forbid(), Permit(), Disable()
  44
  45     INTERNALS
  46
  47     HISTORY
  48
  49 ******************************************************************************/
  50 {
  51     if ((-- SysBase->IDNestCnt) < 0)
  52         en ();
  53
  54     if ((SysBase->AttnResched & 0x80) && SysBase->TDNestCnt<0)
  55     {
  56         SysBase->AttnResched &= ~0x80;
  57
  58         Switch ();
  59     }
  60 } /* Enable */
  61
  62 void en (void)
  63 {
  64     sigset_t set;
  65
  66     sigfillset (&set);
  67
  68     sigprocmask (SIG_UNBLOCK, &set, NULL);
  69 } /* en */