arch/all-unix/exec/enable.c

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: i386unix version of Enable()
   6     Lang: english
   7 */
   8
   9 #include <exec/tasks.h>
  10 #include <exec/execbase.h>
  11 #include <aros/libcall.h>
  12 #include <aros/atomic.h>
  13 #include <proto/exec.h>
  14
  15 #include <stdlib.h>
  16 #include <signal.h>
  17
  18 extern sigset_t sig_int_mask;   /* mask of sig_t that are ints not traps */
  19
  20 #undef  Exec
  21 #ifdef UseExecstubs
  22 #    define Exec _Exec
  23 #endif
  24
  25 AROS_LH0(void, Enable,
  26     struct ExecBase *, SysBase, 21, Exec)
  27 {
  28
  29 #undef Exec
  30
  31     AROS_LIBFUNC_INIT
  32
  33     AROS_ATOMIC_DEC(SysBase->IDNestCnt);
  34
  35     if(SysBase->IDNestCnt < 0)
  36     {
  37         sigprocmask(SIG_UNBLOCK, &sig_int_mask, NULL);
  38     }
  39
  40     AROS_LIBFUNC_EXIT
  41 }