SysVr4 specific macros to convert from and to sigmask.

sysdeps/unix/sysv/sysv4/sigset-cvt-mask.h

@@ -0,0 +1,33 @@
+/* Convert between lowlevel sigmask and libc representation of sigset_t.
+   SysVr4 version.
+   Copyright (C) 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Joe Keane <jgk@jgk.org>.
+
+   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.  */
+
+#define sigset_set_old_mask(set, mask) \
+  do {									      \
+    unsigned long int *__ptr;						      \
+    __ptr = &(set)->__sigbits[0];					      \
+    __ptr[0] = (mask);							      \
+    __ptr[1] = 0ul;							      \
+    __ptr[2] = 0ul;							      \
+    __ptr[3] = 0ul;							      \
+  } while (0)
+
+#define sigset_get_old_mask(set, mask) \
+  ((mask) = (unsigned int) (set)->__sigbits[0])