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Diffstat (limited to 'doc/s6-supervise.html')
| -rw-r--r-- | doc/s6-supervise.html | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/doc/s6-supervise.html b/doc/s6-supervise.html index d9852b5..2b5098d 100644 --- a/doc/s6-supervise.html +++ b/doc/s6-supervise.html @@ -132,6 +132,16 @@ If it already exists, it uses it as is, without modifying the subscription right s6-supervise spawns <tt>./run</tt>. </li> <li> s6-supervise sends a <tt>'u'</tt> event to <tt>./event</tt> whenever it successfully spawns <tt>./run</tt>. </li> + <li> If there is a <tt>./notification-fd</tt> file in the service directory +and s6-supervise is told that the service is ready, it +sends a <tt>'U'</tt> event to <tt>./event</tt>. There are several ways +to tell s6-supervise that the service is ready: + <ul> + <li> the daemon may <a href="notifywhenup.html">do so itself</a>. </li> + <li> the run script may have forked a +<a href="s6-notifyoncheck.html">s6-notifyoncheck</a> process that polls the +service for readiness. </li> + </ul> </li> <li> When <tt>./run</tt> dies, s6-supervise sends a <tt>'d'</tt> event to <tt>./event</tt>. It then spawns <tt>./finish</tt> if it exists. <tt>./finish</tt> will have <tt>./run</tt>'s exit code as first argument, or 256 if |