[webkit-changes] [WebKit/WebKit] d902d2: RemoteImageBufferProxy waits dispatch messages fro...

[Kimmo Kinnunen]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: d902d2108aafad6790ae50f83ca4fa7858b44faa
      https://github.com/WebKit/WebKit/commit/d902d2108aafad6790ae50f83ca4fa7858b44faa
  Author: Kimmo Kinnunen <kkinnunen at apple.com>
  Date:   2023-06-14 (Wed, 14 Jun 2023)

  Changed paths:
    M Source/WebKit/WebProcess/GPU/graphics/RemoteRenderingBackendProxy.cpp
    M Source/WebKit/WebProcess/GPU/graphics/RemoteRenderingBackendProxy.h

  Log Message:
  -----------
  RemoteImageBufferProxy waits dispatch messages from other connections
https://bugs.webkit.org/show_bug.cgi?id=258012
rdar://110699411

Reviewed by Simon Fraser.

Make RemoteRenderingBackendProxy a serial function dispatcher instead
of using the real worker or main run loop as the function dispatcher.
This gives the IPC::Connection a new sync state object. This avoids
dispatching any other IPC::Connection messages during waits on
RemoteRenderingBackendProxy messages.

* Source/WebKit/WebProcess/GPU/graphics/RemoteRenderingBackendProxy.cpp:
(WebKit::RemoteRenderingBackendProxy::ensureGPUProcessConnection):
(WebKit::RemoteRenderingBackendProxy::streamConnection):
* Source/WebKit/WebProcess/GPU/graphics/RemoteRenderingBackendProxy.h:

Canonical link: https://commits.webkit.org/265143@main