Issue 1089358. Adds the siginterrupt() function, that is just a
wrapper around the system call with the same name. Also added
test cases, doc changes and NEWS entry. Thanks Jason and Ralf
Schmitt.
diff --git a/Doc/library/signal.rst b/Doc/library/signal.rst
index afb3166..7fe7ec1 100644
--- a/Doc/library/signal.rst
+++ b/Doc/library/signal.rst
@@ -124,6 +124,21 @@
exception to be raised.
+
+.. function:: siginterrupt(signalnum, flag)
+
+ Change system call restart behaviour: if *flag* is :const:`False`, system calls
+ will be restarted when interrupted by signal *signalnum*, else system calls will
+ be interrupted. Returns nothing. Availability: Unix, Mac (see the man page
+ :manpage:`siginterrupt(3)` for further information).
+
+ Note that installing a signal handler with :func:`signal` will reset the restart
+ behaviour to interruptible by implicitly calling siginterrupt with a true *flag*
+ value for the given signal.
+
+ .. versionadded:: 2.6
+
+
.. function:: signal(signalnum, handler)
Set the handler for signal *signalnum* to the function *handler*. *handler* can