From: Eric Wong <e@80x24.org>
Date: Wed, 10 Mar 2021 13:23:41 +0000 (+0000)
Subject: doc: technical/data_structures: update for EOFpipe
X-Git-Tag: v1.7.0~1028
X-Git-Url: http://www.git.stargrave.org/?a=commitdiff_plain;h=ed9ea6325f51165d8dd5a9c8361b4f58936a47d5;p=public-inbox.git

doc: technical/data_structures: update for EOFpipe

ParentPipe no longer exists and was replaced by the more
flexible EOFpipe.
---

diff --git a/Documentation/technical/data_structures.txt b/Documentation/technical/data_structures.txt
index 8776a67b..4dcf9ce6 100644
--- a/Documentation/technical/data_structures.txt
+++ b/Documentation/technical/data_structures.txt
@@ -222,10 +222,8 @@ daemon classes
   given PublicInbox::Config which may be instantiated more than
   once in the future.
 
-* PublicInbox::ParentPipe
+* PublicInbox::EOFpipe
 
-  Per-worker process class to detect shutdown of master process.
-  This is not used if using -W0 to disable worker processes
-  in public-inbox-httpd or public-inbox-nntpd.
-
-  This is a per-worker singleton.
+  Used throughout to trigger a callback when a pipe(7) is closed.
+  This is frequently used to portably detect process exit without
+  relying on a catch-all waitpid(-1, ...) call.