From: Armin Rigo <arigo@tunes.org>
Date: Sun, 21 Oct 2007 09:14:15 +0000 (+0000)
Subject: Add a crasher for the long-standing issue with closing a file
X-Git-Tag: v2.6a1~1151
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=148618245167e56ac4b9075881f2b790078c1cbc;p=thirdparty%2FPython%2Fcpython.git

Add a crasher for the long-standing issue with closing a file
while another thread uses it.
---

diff --git a/Lib/test/crashers/multithreaded_close.py b/Lib/test/crashers/multithreaded_close.py
new file mode 100644
index 000000000000..52243414d6db
--- /dev/null
+++ b/Lib/test/crashers/multithreaded_close.py
@@ -0,0 +1,14 @@
+# f.close() is not thread-safe: calling it at the same time as another
+# operation (or another close) on the same file, but done from another
+# thread, causes crashes.  The issue is more complicated than it seems,
+# witness the discussions in:
+#
+# http://bugs.python.org/issue595601
+# http://bugs.python.org/issue815646
+
+import thread
+
+while 1:
+    f = open("multithreaded_close.tmp", "w")
+    thread.start_new_thread(f.close, ())
+    f.close()