Mediaplayer playlist doesn't populate due to regression

Regression introduced into the mediaplayer + mediascanner services (and in turn the Mediaplayer UI) via several changes in app-framework-binder that causes a thread lockup.

To reproduce open up the Mediaplayer UI, insert a USB drive with audio media, and no playlist will show up. Then open the monitoring port (e.g http://target:31015/monitoring/) for either mediaplayer or mediascanner service and playlist will show up instantly.

Reverting this patchset causes everything to work as expected (playlist appears within a second or so, and removal events work):

commit 4d02ae9f6ee1ca2d3d7745286d4daabbad3e0176
Author: José Bollo <jose.bollo@iot.bzh>
Date: Tue Aug 20 19:44:53 2019 +0200

af-binder: fixes

This integrates the following fixes

• 3343b4d Fix outdated documents

• 6f13ad1 Avoid lock when child dies

• ac2ab69 Replace obsolete argument "sessiondir" with "workdir"

• 0ea0734 jobs: Add starting mode for jobs

• 6599a89 Fix client disconnection close

Bug-AGL:
Bug-AGL:
Bug-AGL:

Change-Id: I962f310cf69e72d01c78c0620115cd2d66586e2c
Signed-off-by: José Bollo <jose.bollo@iot.bzh"