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81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
/* Generic signal.h */
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/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 1998-2020 The OpenLDAP Foundation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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#ifndef _AC_SIGNAL_H
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#define _AC_SIGNAL_H
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#include <signal.h>
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#undef SIGNAL
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#if defined( HAVE_SIGACTION )
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#define SIGNAL lutil_sigaction
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typedef void (*lutil_sig_t)(int);
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LDAP_LUTIL_F(lutil_sig_t) lutil_sigaction( int sig, lutil_sig_t func );
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#define SIGNAL_REINSTALL(sig,act) (void)0
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#elif defined( HAVE_SIGSET )
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#define SIGNAL sigset
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#define SIGNAL_REINSTALL sigset
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#else
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#define SIGNAL signal
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#define SIGNAL_REINSTALL signal
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#endif
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#if !defined( LDAP_SIGUSR1 ) || !defined( LDAP_SIGUSR2 )
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#undef LDAP_SIGUSR1
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#undef LDAP_SIGUSR2
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# if defined(WINNT) || defined(_WINNT) || defined(_WIN32)
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# define LDAP_SIGUSR1 SIGILL
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# define LDAP_SIGUSR2 SIGTERM
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# elif !defined(HAVE_LINUX_THREADS)
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# define LDAP_SIGUSR1 SIGUSR1
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# define LDAP_SIGUSR2 SIGUSR2
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# else
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/*
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* Some versions of LinuxThreads unfortunately uses the only
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* two signals reserved for user applications. This forces
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* OpenLDAP to use other signals reserved for other uses.
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*/
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# if defined( SIGSTKFLT )
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# define LDAP_SIGUSR1 SIGSTKFLT
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# elif defined ( SIGSYS )
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# define LDAP_SIGUSR1 SIGSYS
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# endif
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# if defined( SIGUNUSED )
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# define LDAP_SIGUSR2 SIGUNUSED
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# elif defined ( SIGINFO )
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# define LDAP_SIGUSR2 SIGINFO
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# elif defined ( SIGEMT )
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# define LDAP_SIGUSR2 SIGEMT
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# endif
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# endif
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#endif
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#ifndef LDAP_SIGCHLD
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#ifdef SIGCHLD
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#define LDAP_SIGCHLD SIGCHLD
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#elif SIGCLD
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#define LDAP_SIGCHLD SIGCLD
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#endif
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#endif
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#endif /* _AC_SIGNAL_H */
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