<font size=2 face="sans-serif">I believe another task for the list of
libdispatch integration items is the implementation of the Dispatch overlay
for Linux. I've been taking a stab at that based on changes made (and then
reverted) by Slava in November - hopefully I'll have something worth looking
at for it tomorrow.<br>
</font>
<br>
<br>
<br>
<br><font size=1 color=#5f5f5f face="sans-serif">From:
</font><font size=1 face="sans-serif">Pierre Habouzit via
swift-corelibs-dev <swift-corelibs-dev@swift.org></font>
<br><font size=1 color=#5f5f5f face="sans-serif">To:
</font><font size=1 face="sans-serif">Philippe Hausler <phausler@apple.com></font>
<br><font size=1 color=#5f5f5f face="sans-serif">Cc:
</font><font size=1 face="sans-serif">Swift Core Libs <swift-corelibs-dev@swift.org></font>
<br><font size=1 color=#5f5f5f face="sans-serif">Date:
</font><font size=1 face="sans-serif">13/01/2016 20:04</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Subject:
</font><font size=1 face="sans-serif">Re: [swift-corelibs-dev]
libdispatch prep for integration to the rest of swift-corelibs</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Sent by:
</font><font size=1 face="sans-serif">swift-corelibs-dev-bounces@swift.org</font>
<br>
<hr noshade>
<br>
<br>
<br><font size=3>it needs pthread wq changes that are still in review (the
pull request is tagged as such).</font>
<br>
<br><font size=3>-Pierre </font>
<br>
<br><font size=3>On Jan 13, 2016, at 11:11 AM, Philippe Hausler via swift-corelibs-dev
<</font><a href="mailto:swift-corelibs-dev@swift.org"><font size=3 color=blue><u>swift-corelibs-dev@swift.org</u></font></a><font size=3>>
wrote:</font>
<br>
<br><font size=3>Splitting this off to it’s own thread since this is not
per-se networking related</font>
<br>
<br><font size=3>On Jan 13, 2016, at 11:07 AM, David P Grove <</font><a href=mailto:groved@us.ibm.com><font size=3 color=blue><u>groved@us.ibm.com</u></font></a><font size=3>>
wrote:</font>
<br>
<p><a href=mailto:phausler@apple.com><tt><font size=3 color=blue><u>phausler@apple.com</u></font></tt></a><tt><font size=3>
wrote on 01/13/2016 01:43:17 PM:<br>
> <br>
> Getting GCD up and rolling is definitely a bottleneck for a few <br>
> things (not just NSURLSession). </font></tt><font size=3><br>
</font><tt><font size=3><br>
Thanks Philippe! I was looking for things to do :)<br>
<br>
> <br>
> There are a few things that we need as checkpoints:<br>
> A set of build instructions tailored for the swift project<br>
> GCD needs to be able to build on Ubuntu 14 as well as Ubuntu 15</font></tt><font size=3><br>
</font><tt><font size=3><br>
I can take a look at Ubuntu 14. I know that one of the issues was
the old version of libpthread_workqueue (under discussion for other reasons;
we need fixes that aren't in the Ubuntu 15 version). I'll see if
there is anything else standing in the way for Ubuntu 14. </font></tt>
<p>
<br><font size=3>I am getting a build failure on 14:</font>
<br>
<br><font size=3>/bin/bash ../libtool --tag=CC --mode=compile
clang -DHAVE_CONFIG_H -I. -I../config -I.. -I.. -I../private -I../os
-DDISPATCH_USE_DTRACE=0 -Wall -fvisibility=hidden -momit-leaf-frame-pointer
-I/usr/include/kqueue -isystem /usr/include/bsd -DLIBBSD_OVERLAY
-fblocks -g -O2 -c -o queue.lo queue.c</font>
<br><font size=3>libtool: compile: clang -DHAVE_CONFIG_H -I. -I../config
-I.. -I.. -I../private -I../os -DDISPATCH_USE_DTRACE=0 -Wall -fvisibility=hidden
-momit-leaf-frame-pointer -I/usr/include/kqueue -isystem /usr/include/bsd
-DLIBBSD_OVERLAY -fblocks -g -O2 -c queue.c -fPIC -DPIC -o .libs/queue.o</font>
<br><font size=3>queue.c:216:22: error: use of undeclared identifier 'WORKQ_BG_PRIOQUEUE'</font>
<br><font size=3>
.dgq_wq_priority = WORKQ_BG_PRIOQUEUE,</font>
<br><font size=3>
^</font>
<br><font size=3>queue.c:227:22: error: use of undeclared identifier 'WORKQ_BG_PRIOQUEUE'</font>
<br><font size=3>
.dgq_wq_priority = WORKQ_BG_PRIOQUEUE,</font>
<br><font size=3>
^</font>
<br><font size=3>queue.c:928:18: error: invalid application of 'sizeof'
to an incomplete type 'struct dispatch_root_queue_context_s []'</font>
<br>
<p><tt><font size=3><br>
> We need to move Availability.h and friends down underneath both GCD
<br>
> and Foundation since they both use them<br>
> We need to move the blocks runtime out of Foundation and underneath
<br>
> or inside of GCD.<br>
> The master build script in swift/utils/build-script needs to be able<br>
> to build GCD<br>
> The master build script in swift/utils/build-script to ensure GCD
<br>
> and all required components are built before Foundation and the <br>
> appropriate linker paths are passed to Foundation (see how XCTest
is handled)<br>
> </font></tt><font size=3><br>
</font><tt><font size=3><br>
--dave</font></tt><font size=3><br>
</font>
<p><font size=3><br>
</font>
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