summaryrefslogtreecommitdiffstats
path: root/include/ac/signal.h
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--include/ac/signal.h80
1 files changed, 80 insertions, 0 deletions
diff --git a/include/ac/signal.h b/include/ac/signal.h
new file mode 100644
index 0000000..34dbc04
--- /dev/null
+++ b/include/ac/signal.h
@@ -0,0 +1,80 @@
+/* Generic signal.h */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2021 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+#ifndef _AC_SIGNAL_H
+#define _AC_SIGNAL_H
+
+#include <signal.h>
+
+#undef SIGNAL
+
+#if defined( HAVE_SIGACTION )
+#define SIGNAL lutil_sigaction
+typedef void (*lutil_sig_t)(int);
+LDAP_LUTIL_F(lutil_sig_t) lutil_sigaction( int sig, lutil_sig_t func );
+#define SIGNAL_REINSTALL(sig,act) (void)0
+#elif defined( HAVE_SIGSET )
+#define SIGNAL sigset
+#define SIGNAL_REINSTALL sigset
+#else
+#define SIGNAL signal
+#define SIGNAL_REINSTALL signal
+#endif
+
+#if !defined( LDAP_SIGUSR1 ) || !defined( LDAP_SIGUSR2 )
+#undef LDAP_SIGUSR1
+#undef LDAP_SIGUSR2
+
+# if defined(WINNT) || defined(_WINNT) || defined(_WIN32)
+# define LDAP_SIGUSR1 SIGILL
+# define LDAP_SIGUSR2 SIGTERM
+
+# elif !defined(HAVE_LINUX_THREADS)
+# define LDAP_SIGUSR1 SIGUSR1
+# define LDAP_SIGUSR2 SIGUSR2
+
+# else
+ /*
+ * Some versions of LinuxThreads unfortunately uses the only
+ * two signals reserved for user applications. This forces
+ * OpenLDAP to use other signals reserved for other uses.
+ */
+
+# if defined( SIGSTKFLT )
+# define LDAP_SIGUSR1 SIGSTKFLT
+# elif defined ( SIGSYS )
+# define LDAP_SIGUSR1 SIGSYS
+# endif
+
+# if defined( SIGUNUSED )
+# define LDAP_SIGUSR2 SIGUNUSED
+# elif defined ( SIGINFO )
+# define LDAP_SIGUSR2 SIGINFO
+# elif defined ( SIGEMT )
+# define LDAP_SIGUSR2 SIGEMT
+# endif
+# endif
+#endif
+
+#ifndef LDAP_SIGCHLD
+#ifdef SIGCHLD
+#define LDAP_SIGCHLD SIGCHLD
+#elif SIGCLD
+#define LDAP_SIGCHLD SIGCLD
+#endif
+#endif
+
+#endif /* _AC_SIGNAL_H */