external/bsd/openldap/dist/include/ac/wait.h

   1 /* Generic wait.h */
   2 /* $OpenLDAP: pkg/ldap/include/ac/wait.h,v 1.16.2.3 2008/02/11 23:26:40 kurt Exp $ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2008 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16
  17 #ifndef _AC_WAIT_H
  18 #define _AC_WAIT_H
  19
  20 #include <sys/types.h>
  21
  22 #ifdef HAVE_SYS_WAIT_H
  23 # include <sys/wait.h>
  24 #endif
  25
  26 #define LDAP_HI(s)      (((s) >> 8) & 0377)
  27 #define LDAP_LO(s)      ((s) & 0377)
  28
  29 /* These should work on non-POSIX UNIX platforms,
  30         all bets on off on non-POSIX non-UNIX platforms... */
  31 #ifndef WIFEXITED
  32 # define WIFEXITED(s)   (LDAP_LO(s) == 0)
  33 #endif
  34 #ifndef WEXITSTATUS
  35 # define WEXITSTATUS(s) LDAP_HI(s)
  36 #endif
  37 #ifndef WIFSIGNALED
  38 # define WIFSIGNALED(s) (LDAP_LO(s) > 0 && LDAP_HI(s) == 0)
  39 #endif
  40 #ifndef WTERMSIG
  41 # define WTERMSIG(s)    (LDAP_LO(s) & 0177)
  42 #endif
  43 #ifndef WIFSTOPPED
  44 # define WIFSTOPPED(s)  (LDAP_LO(s) == 0177 && LDAP_HI(s) != 0)
  45 #endif
  46 #ifndef WSTOPSIG
  47 # define WSTOPSIG(s)    LDAP_HI(s)
  48 #endif
  49
  50 #ifdef WCONTINUED
  51 # define WAIT_FLAGS ( WNOHANG | WUNTRACED | WCONTINUED )
  52 #else
  53 # define WAIT_FLAGS ( WNOHANG | WUNTRACED )
  54 #endif
  55
  56 #endif /* _AC_WAIT_H */