Merged revisions 73818 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r73818 | gregory.p.smith | 2009-07-03 13:48:31 -0700 (Fri, 03 Jul 2009) | 2 lines
Adds the select.PIPE_BUF attribute to expose the system constant.
........
diff --git a/Doc/library/select.rst b/Doc/library/select.rst
index 6dbf16f..bffb9cb 100644
--- a/Doc/library/select.rst
+++ b/Doc/library/select.rst
@@ -94,6 +94,15 @@
library, and does not handle file descriptors that don't originate from
WinSock.
+.. attribute:: select.PIPE_BUF
+
+ Files reported as ready for writing by :func:`select`, :func:`poll` or
+ similar interfaces in this module are guaranteed to not block on a write
+ of up to :const:`PIPE_BUF` bytes.
+ This value is guaranteed by POSIX to be at least 512.
+
+ .. versionadded:: 2.7
+
.. _epoll-objects:
diff --git a/Modules/selectmodule.c b/Modules/selectmodule.c
index 191296e..0855375 100644
--- a/Modules/selectmodule.c
+++ b/Modules/selectmodule.c
@@ -1764,6 +1764,8 @@
Py_INCREF(SelectError);
PyModule_AddObject(m, "error", SelectError);
+ PyModule_AddIntConstant(m, "PIPE_BUF", PIPE_BUF);
+
#if defined(HAVE_POLL)
#ifdef __APPLE__
if (select_have_broken_poll()) {