From ab5abab603dcb0711594d05c1a41aa2f603dd10f Mon Sep 17 00:00:00 2001
From: Stefan Kost <ensonic@users.sf.net>
Date: Mon, 9 Nov 2009 16:20:52 +0200
Subject: [PATCH] planning: add thoughts about foreign registry cache updates

---
 docs/random/ensonic/draft-bufferpools.txt     |  2 +-
 .../ensonic/draft-registry-change-hooks.txt   | 53 +++++++++++++++++++
 2 files changed, 54 insertions(+), 1 deletion(-)
 create mode 100644 docs/random/ensonic/draft-registry-change-hooks.txt

diff --git a/docs/random/ensonic/draft-bufferpools.txt b/docs/random/ensonic/draft-bufferpools.txt
index 8bab08eb45..617fe18e14 100644
--- a/docs/random/ensonic/draft-bufferpools.txt
+++ b/docs/random/ensonic/draft-bufferpools.txt
@@ -4,7 +4,7 @@ BufferPools
 This document proposes a mechnism to build pools of reusable buffers. The
 proposal should improve performance and help to implement zero-copy usecases.
 
-Last edited: 2009-09.01 Stefan Kost
+Last edited: 2009-09-01 Stefan Kost
 
 
 Current Behaviour
diff --git a/docs/random/ensonic/draft-registry-change-hooks.txt b/docs/random/ensonic/draft-registry-change-hooks.txt
new file mode 100644
index 0000000000..b50a942951
--- /dev/null
+++ b/docs/random/ensonic/draft-registry-change-hooks.txt
@@ -0,0 +1,53 @@
+Registry Change Hooks
+----------------------
+
+This document proposes a mechnism to register on registry updates.
+
+Last edited: 2009-11-09 Stefan Kost
+
+
+Current Behaviour
+-----------------
+
+When new plugins are installed or some are removed, the next application that
+runs rebuiilds the registry. Any application that runs later on won't know about
+it.
+
+
+Problem
+-------
+
+Some usecases need to cache gstreamer capabilities. They need to know when the 
+cache needs to be rebuilt. We could either export the registry mtime as api or
+do the following.
+
+
+Proposal
+--------
+We add a ~/.gstreamer-0.10/registry-hooks directory. Applications can install
+scripts there. When the registry is rebuild, those scripts are run async in no
+specific order. There is no feedback channel (return values, stdout/err).
+
+
+Examples
+---------
+
+gst-inspector
+-------------
+it would install a script that simply deletes its cachefile.
+
+gupnp
+-----
+it would install a script that runs gst-inspect-0.10 --print-plugin-auto-install-info
+and post process it.
+
+totem,banshee,rythmbox
+-----------------------
+they could tune the "MimeType=" lists in their desktop files
+
+
+Open Items
+----------
+Should we have a gst-registry-hook script with --install/--remove/--list actions
+to manage hooks?
+