From 000525db3e22d76131adbb17bc87b1c7c6426481 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Thu, 7 Mar 2013 00:35:28 -0500
Subject: systemd-python: export sd_j_get_fd, sd_j_reliable_fd, sd_j_close

sd_journal_get_fd(j) is called j.fileno(), for compatiblity with
Python conventions for file-like objects.

More importantly, those new .seek_head() and .seek_tail() do not
call .get_next(). This is better, if one wants to skip before
retrieving an entry.
---
 systemd/docs/journal.rst | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'systemd/docs')

diff --git a/systemd/docs/journal.rst b/systemd/docs/journal.rst
index faa2707..9dc495f 100644
--- a/systemd/docs/journal.rst
+++ b/systemd/docs/journal.rst
@@ -27,6 +27,22 @@ Accessing the Journal
 
 .. autoattribute:: systemd.journal.DEFAULT_CONVERTERS
 
+Example: polling for journal events
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+This example shows that journal events can be waited for (using
+e.g. `poll`). This makes it easy to integrate Reader in an external
+event loop:
+
+  >>> import select
+  >>> from systemd import journal
+  >>> j = journal.Reader()
+  >>> j.seek_tail()
+  >>> p = select.poll()
+  >>> p.register(j, select.POLLIN)
+  >>> p.poll()
+  [(3, 1)]
+  >>> j.get_next()
 
 
 Journal access types
-- 
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