[PATCH 0/3 for 9.0] Fix TLS support for chardevs and incoming data loss on EOF

[Daniel P . Berrangé]

This fixes a problem with TLS support on chardevs that Thomas has
previously attempted to deal with:

  https://lists.nongnu.org/archive/html/qemu-devel/2024-02/msg06915.html

Unfortunately that fix caused unexpected side effects that resulted
in premature termination of the TLS connection. See patch 2 for
details.

I've since identified the root cause of the problem that Thomas was
trying to fix - bad assumptions about GSource 'prepare' functions
always being run. See patch 3 for details.

Patch 3 re-exposed a bug we've know about for a while whereby incoming
data on chardevs is sometimes discarded when POLLHUP is reported at the
same time. This required patch 1 to be applied before doing the revert
in patch 3, otherwise test-char would now very frequently fail.

So we get 2 bug fixes for the price of one :-)

Daniel P. Berrangé (3):
  chardev: lower priority of the HUP GSource in socket chardev
  Revert "chardev/char-socket: Fix TLS io channels sending too much data
    to the backend"
  Revert "chardev: use a child source for qio input source"

 chardev/char-io.c     | 55 +++++++++++++++++++++++++++++++++++++++----
 chardev/char-socket.c | 22 ++++++++++++++---
 2 files changed, 69 insertions(+), 8 deletions(-)

-- 
2.43.0