Imported from ../bash-2.04.tar.gz.

include/unionwait.h

@@ -0,0 +1,98 @@
+/* unionwait.h -- definitions for using a `union wait' on systems without
+   one. */
+
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the Bourne Again SHell.
+
+   Bash is free software; you can redistribute it and/or modify it under
+   the terms of the GNU General Public License as published by the Free
+   Software Foundation; either version 2, or (at your option) any later
+   version.
+
+   Bash 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 General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with Bash; see the file COPYING.  If not, write to the Free Software
+   Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+
+#ifndef _UNIONWAIT_H
+#define _UNIONWAIT_H
+
+#if !defined (WORDS_BIGENDIAN)
+union wait
+  {
+    int	w_status;		/* used in syscall */
+
+    /* Terminated process status. */
+    struct
+      {
+	unsigned short
+	  w_Termsig  : 7,	/* termination signal */
+	  w_Coredump : 1,	/* core dump indicator */
+	  w_Retcode  : 8,	/* exit code if w_termsig==0 */
+	  w_Fill1    : 16;	/* high 16 bits unused */
+      } w_T;
+
+    /* Stopped process status.  Returned
+       only for traced children unless requested
+       with the WUNTRACED option bit. */
+    struct
+      {
+	unsigned short
+	  w_Stopval : 8,	/* == W_STOPPED if stopped */
+	  w_Stopsig : 8,	/* actually zero on XENIX */
+	  w_Fill2   : 16;	/* high 16 bits unused */
+      } w_S;
+  };
+
+#else  /* WORDS_BIGENDIAN */
+
+/* This is for big-endian machines like the IBM RT, HP 9000, or Sun-3 */
+
+union wait
+  {
+    int	w_status;		/* used in syscall */
+
+    /* Terminated process status. */
+    struct
+      {
+	unsigned short w_Fill1    : 16;	/* high 16 bits unused */
+	unsigned       w_Retcode  : 8;	/* exit code if w_termsig==0 */
+	unsigned       w_Coredump : 1;	/* core dump indicator */
+	unsigned       w_Termsig  : 7;	/* termination signal */
+      } w_T;
+
+    /* Stopped process status.  Returned
+       only for traced children unless requested
+       with the WUNTRACED option bit. */
+    struct
+      {
+	unsigned short w_Fill2   : 16;	/* high 16 bits unused */
+	unsigned       w_Stopsig : 8;	/* signal that stopped us */
+	unsigned       w_Stopval : 8;	/* == W_STOPPED if stopped */
+      } w_S;
+  };
+
+#endif /* WORDS_BIGENDIAN */
+
+#define w_termsig  w_T.w_Termsig
+#define w_coredump w_T.w_Coredump
+#define w_retcode  w_T.w_Retcode
+#define w_stopval  w_S.w_Stopval
+#define w_stopsig  w_S.w_Stopsig
+
+#define WSTOPPED       0177
+#define WIFSTOPPED(x)  ((x).w_stopval == WSTOPPED)
+#define WIFEXITED(x)   ((x).w_stopval != WSTOPPED && (x).w_termsig == 0)
+#define WIFSIGNALED(x) ((x).w_stopval != WSTOPPED && (x).w_termsig != 0)
+
+#define WTERMSIG(x)    ((x).w_termsig)
+#define WSTOPSIG(x)    ((x).w_stopsig)
+#define WEXITSTATUS(x) ((x).w_retcode)
+#define WIFCORED(x)    ((x).w_coredump)
+
+#endif /* _UNIONWAIT_H */