[Qemu-devel] [PATCH for-2.2 00/10] AioContext cleanups and Win32 socket support

[Paolo Bonzini <pbonzini@redhat.com>]

This series simplifies heavily aio_poll by splitting it into three
phases: prepare (aio_compute_timeout), poll, dispatch.  The resulting
code shares more logic between aio_poll and the GSource wrappers,
and makes it easier to add Win32 support for sockets.

Win32 support for sockets is a prerequisite for moving the NBD server
into the BlockDriverState's attached AioContext.  It is done in the
final patch, based on earlier work from Or Goshen (from Intel).
I had to more or less rewrite it to fit the new framework, but you
can see parts of Or's work, as well as traces of aio-posix.c and
main-loop.c logic.

Tested with NBD boot under Wine.

Paolo

Paolo Bonzini (10):
  AioContext: take bottom halves into account when computing aio_poll
    timeout
  aio-win32: Evaluate timers after handles
  aio-win32: Factor out duplicate code into aio_dispatch_handlers
  AioContext: run bottom halves after polling
  AioContext: export and use aio_dispatch
  test-aio: test timers on Windows too
  aio-win32: add aio_set_dispatching optimization
  AioContext: introduce aio_prepare
  qemu-coroutine-io: fix for Win32
  aio-win32: add support for sockets

 aio-posix.c         |  58 ++++--------
 aio-win32.c         | 262 +++++++++++++++++++++++++++++++++++++++-------------
 async.c             |  39 +++++---
 block/Makefile.objs |   2 -
 include/block/aio.h |  25 ++++-
 nbd.c               |   2 +-
 qemu-coroutine-io.c |   4 +-
 tests/test-aio.c    |  48 +++-------
 8 files changed, 277 insertions(+), 163 deletions(-)

-- 
1.9.3