Hi, Laszlo,
Do you think our single-threaded storage(database) solution can be helpful
to you? If so, I'm going to change the switch from PLATFORM(WINCE) to
ENABLE(SINGLE_THREADED) or something like that.
-Yong
----- Original Message -----
From: <laszlo.1.gom...@nokia.com>
To: <stai...@kde.org>; <webkit-dev@lists.webkit.org>
Sent: Tuesday, August 18, 2009 3:57 PM
Subject: Re: [webkit-dev] Single-threaded database/storage solution
Hi All,
QtWebKit has a build time flag called ENABLE_SINGLE_THREADED to turn off
ENABLE_JSC_MULTIPLE_THREADS and WebCore features that create additional
threads. I'm interested to make this feature available for QtWebKit (and
maybe other ports) as well, not just to the WINCE port. See
http://trac.webkit.org/changeset/44411.
Regards,
Laszlo
-----Original Message-----
From: webkit-dev-boun...@lists.webkit.org
[mailto:webkit-dev-boun...@lists.webkit.org] On Behalf Of ext
George Staikos
Sent: Tuesday, August 18, 2009 10:36 PM
To: WebKit Development
Subject: Re: [webkit-dev] Single-threaded database/storage solution
On 18-Aug-09, at 1:44 PM, Yong Li wrote:
Hi, All,
The current webkit database/storage is implemented with creating new
threads. But not all platform/products support mulple- threading.
Also, threading can be expensive on some platforms.
Except this database/storage implementation, WEBKIT platform-
crossing
code can build and run in a single thread. WEBKIT generally uses
WebCore::Timer To avoid blocking UI. Another way to avoid blocking UI
is to create a separate thread for UI, and WEBKIT code can still run
in a single-thread. Now it's broken by database/ storage code, which
forces to use multiple threads for WEBKIT. In our WINCE port, we have
implemented a single-threaded solution with WebCore::Timer. The patch
has been post to https://bugs.webkit.org/
show_bug.cgi?id=28019 . The patch is a bit out-of-date, due
to changes
in upstream. New patch will come soon. Please give some comments if
you're interested.
There's a macro ENABLE_JSC_MULTIPLE_THREADS used in JSC. Probably
there should also be a macro ENABLE_WEBCORE_MULTIPLE_THREADS. Or just
use ENABLE_MULTIPLE_THREADS for all multi-threading code.
I agree with that and I think a cleanup of the patch would
make it a good addition. Forcing the use of threads here is not ideal.
--
George Staikos
Torch Mobile Inc.
http://www.torchmobile.com/
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