* process.c (pst_success_p): new method Process::Status#success?.

  [ruby-dev:23385]


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@6165 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 21 insertions, 1 deletions

diff --git a/process.c b/process.c
index d252c0fa8..4c15e67a2 100644
--- a/process.c
+++ b/process.c
@@ -511,7 +511,27 @@ pst_wexitstatus(st)
 
 /*
  *  call-seq:
- *     stat.coredump   => true or false
+ *     stat.success?   => true, false or nil
+ *  
+ *  Returns +true+ if _stat_ is successful, +false+ if not.
+ *  Returns +nil+ if <code>exited?</code> is not +true+.
+ */
+
+static VALUE
+pst_success_p(st)
+    VALUE st;
+{
+    int status = NUM2INT(st);
+
+    if (!WIFEXITED(status))
+	return Qnil;
+    return WEXITSTATUS(status) == EXIT_SUCCESS ? Qtrue : Qfalse;
+}
+
+
+/*
+ *  call-seq:
+ *     stat.coredump?   => true or false
  *  
  *  Returns +true+ if _stat_ generated a coredump
  *  when it terminated. Not available on all platforms.