AIX definitions for sigaction.h.

diff --git a/sysdeps/unix/sysv/aix/bits/sigaction.h b/sysdeps/unix/sysv/aix/bits/sigaction.h
new file mode 100644 (file)
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+++ b/sysdeps/unix/sysv/aix/bits/sigaction.h
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+/* The proper definitions for AIX's sigaction.
+   Copyright (C) 1993-1999, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _SIGNAL_H
+# error "Never include <bits/sigaction.h> directly; use <signal.h> instead."
+#endif
+
+/* Structure describing the action to be taken when a signal arrives.  */
+struct sigaction
+  {
+    /* Signal handler.  */
+#ifdef __USE_POSIX199309
+    union
+      {
+       /* Used if SA_SIGINFO is not set.  */
+       __sighandler_t sa_handler;
+       /* Used if SA_SIGINFO is set.  */
+       void (*sa_sigaction) (int, siginfo_t *, void *);
+      }
+    __sigaction_handler;
+# define sa_handler    __sigaction_handler.sa_handler
+# define sa_sigaction  __sigaction_handler.sa_sigaction
+#else
+    __sighandler_t sa_handler;
+#endif
+
+    /* Additional set of signals to be blocked.  */
+    __sigset_t sa_mask;
+
+    /* Special flags.  */
+    int sa_flags;
+  };
+
+/* Bits in `sa_flags'.  */
+#define        SA_NOCLDSTOP  4          /* Don't send SIGCHLD when children stop.  */
+#define SA_NOCLDWAIT  0x400     /* Don't create on death of child.  */
+#define SA_SIGINFO    0x100     /* Invoke signal-catching function with
+                                   three arguments instead of one.  */
+#if defined __USE_UNIX98 || defined __USE_MISC
+# define SA_ONSTACK   0x00000001 /* Use signal stack by using `sa_restorer'. */
+# define SA_RESTART   0x00000008 /* Restart syscall on signal return.  */
+# define SA_NODEFER   0x00000200 /* Don't automatically block the signal when
+                                   its handler is being executed.  */
+# define SA_RESETHAND 0x00000002 /* Reset to SIG_DFL on entry to handler.  */
+#endif
+#ifdef __USE_MISC
+/* Some aliases for the SA_ constants.  */
+# define SA_NOMASK    SA_NODEFER
+# define SA_ONESHOT   SA_RESETHAND
+# define SA_STACK     SA_ONSTACK
+#endif
+
+/* Values for the HOW argument to `sigprocmask'.  */
+#define        SIG_BLOCK     0          /* Block signals.  */
+#define        SIG_UNBLOCK   1          /* Unblock signals.  */
+#define        SIG_SETMASK   2          /* Set the set of blocked signals.  */