From: Bruno Haible <bruno@clisp.org>
Date: Sun, 26 Sep 2010 12:54:30 +0000 (+0200)
Subject: sys_wait: Implement WSTOPSIG.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f6587ab7ca1ef3cc68b1c0ef6971022fff08bcee;p=pspp

sys_wait: Implement WSTOPSIG.

* lib/sys_wait.in.h (WSTOPSIG): New macro.
Reported by Simon Josefsson.
---

diff --git a/ChangeLog b/ChangeLog
index 959a0afed6..f23c1c4fc6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2010-09-26  Bruno Haible  <bruno@clisp.org>
+
+	sys_wait: Implement WSTOPSIG.
+	* lib/sys_wait.in.h (WSTOPSIG): New macro.
+	Reported by Simon Josefsson.
+
 2010-09-26  Simon Josefsson  <simon@josefsson.org>
 
 	stdlib, sys_wait: Avoid compilation error on mingw.
diff --git a/lib/sys_wait.in.h b/lib/sys_wait.in.h
index d30a3e6f25..0006112ead 100644
--- a/lib/sys_wait.in.h
+++ b/lib/sys_wait.in.h
@@ -61,6 +61,11 @@
 #  define WEXITSTATUS(x) (((x) >> 8) & 0xff)
 # endif
 
+/* The stopping signal. Only to be accessed if WIFSTOPPED(x) is true.  */
+# ifndef WSTOPSIG
+#  define WSTOPSIG(x) (((x) >> 8) & 0x7f)
+# endif
+
 /* True if the process dumped core.  Not standardized by POSIX.  */
 # ifndef WCOREDUMP
 #  define WCOREDUMP(x) ((x) & 0x80)
@@ -98,6 +103,9 @@ extern "C" {
 
 # define WEXITSTATUS(x) (x)
 
+/* There are no stopping signals.  */
+# define WSTOPSIG(x) 0
+
 /* There are no core dumps.  */
 # define WCOREDUMP(x) 0