<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Update.<div><br></div><div>running cl works on 32 bit emulator.</div><div>So that is a great workaround, while poking around in the subject.</div><div><br></div><div>/Tony</div><div><br></div><div><div><div>On 16 mar 2012, at 15:41, Tony Rogvall wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi Dan!<div><br></div><div>I think (and hope) that it is only dlopen that needs to be run from the main thread,</div><div>is the undocumented feature accessible from the NIF's ?</div><div><br></div><div>Otherwise what about having a special async thread you could run in the main thread?</div><div><br></div><div>Apple still have not fixed poll ! Lets start a Facebook group ;-)</div><div><br></div><div>/Tony</div><div><br></div><div><div><div>On 16 mar 2012, at 12:09, Dan Gudmundsson wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>That is a pain ...<br><br>You can grab the main thread within erlang (undocumented ?) because<br>the gui must also be run from the<br>main thread, which means that you can not combine OpenCL with wx (or esdl).<br><br>Or is it only the dlopen call that must be run from that thread?<br><br>Apple sometimes not so great..<br><br>/Dan<br><br>On Fri, Mar 16, 2012 at 11:34 AM, Tony Rogvall <<a href="mailto:tony@rogvall.se">tony@rogvall.se</a>> wrote:<br><blockquote type="cite">The problem seem to be dlopen, that it must be called from the main thread,<br></blockquote><blockquote type="cite">this used to work. Googling around I can see other people have this problem,<br></blockquote><blockquote type="cite">the work around for some projects is to run erlang as:<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">erl -smp disable<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">However, this is not possible with the cl binding since it require SMP(<br></blockquote><blockquote type="cite">sending event messages from<br></blockquote><blockquote type="cite">various threads )<br></blockquote><blockquote type="cite">You can verify that the cl application loads ok with non smp, but then crash<br></blockquote><blockquote type="cite">with<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">enif_send: env==NULL on non-SMP VMAbort trap: 6<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">as it should :-)<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Any OTP takers ? Sverker / Björn ?<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">/Tony<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">On 16 mar 2012, at 11:21, Alfredo Di Napoli wrote:<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">On 16/mar/2012, at 11:10, Tony Rogvall wrote:<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I just tried it, and you are totally correct.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">The cl nif failed to load on R15B Darwin 11.3.0.<br></blockquote><blockquote type="cite">What Erlang release and OS/release are you using ?<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">/Tony<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Hi Tony, I'm on a Mac Os X Lion (so SDK 10.7) with the latest Erlang<br></blockquote><blockquote type="cite">distribution R15B.<br></blockquote><blockquote type="cite">I suspect this isn't a problem with your bindings, though, because I'm the<br></blockquote><blockquote type="cite">same guy who asked you help about OpenCL binding with NIF via email :)<br></blockquote><blockquote type="cite">I've also tried a brain-dead simple NIF application (a stupid app that<br></blockquote><blockquote type="cite">performs a square of a number), compiling it from command line (so no Xcode<br></blockquote><blockquote type="cite">involved :) )<br></blockquote><blockquote type="cite">The NIF works fine, until I link ANY Mac OS Framework. In my example I've<br></blockquote><blockquote type="cite">ONLY linked the AppKit.framework: bare in mind that actually the NIF does<br></blockquote><blockquote type="cite">not uses it in any function call!<br></blockquote><blockquote type="cite">The result? Abort trap!<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">So I guess this could be a Erlang VM bug, related to Mac Os Frameworks<br></blockquote><blockquote type="cite">dynamic linking process.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Regards,<br></blockquote><blockquote type="cite">Alfredo<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">"Installing applications can lead to corruption over time. Applications<br></blockquote><blockquote type="cite">gradually write over each other's libraries, partial upgrades occur, user<br></blockquote><blockquote type="cite">and system errors happen, and minute changes may be unnoticeable and<br></blockquote><blockquote type="cite">difficult to fix"<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">_______________________________________________<br></blockquote><blockquote type="cite">erlang-questions mailing list<br></blockquote><blockquote type="cite"><a href="mailto:erlang-questions@erlang.org">erlang-questions@erlang.org</a><br></blockquote><blockquote type="cite"><a href="http://erlang.org/mailman/listinfo/erlang-questions">http://erlang.org/mailman/listinfo/erlang-questions</a><br></blockquote><blockquote type="cite"><br></blockquote></div></blockquote></div><br><div>
<span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div><span class="Apple-style-span" style="color: rgb(51, 51, 51); font-family: Geneva, Arial, Helvetica, sans-serif; font-size: 12px; ">"Installing applications can lead to corruption over time. </span><span class="Apple-style-span" style="color: rgb(51, 51, 51); font-family: Geneva, Arial, Helvetica, sans-serif; font-size: 12px; ">Applications gradually write over each other's libraries, partial upgrades occur, user and system errors happen, and minute changes may be unnoticeable and difficult to fix"</span></div><div><span class="Apple-style-span" style="color: rgb(51, 51, 51); font-family: Geneva, Arial, Helvetica, sans-serif; font-size: 12px; "><br></span></div></span><br class="Apple-interchange-newline">
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<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div><span class="Apple-style-span" style="color: rgb(51, 51, 51); font-family: Geneva, Arial, Helvetica, sans-serif; font-size: 12px; ">"Installing applications can lead to corruption over time. </span><span class="Apple-style-span" style="color: rgb(51, 51, 51); font-family: Geneva, Arial, Helvetica, sans-serif; font-size: 12px; ">Applications gradually write over each other's libraries, partial upgrades occur, user and system errors happen, and minute changes may be unnoticeable and difficult to fix"</span></div><div><span class="Apple-style-span" style="color: rgb(51, 51, 51); font-family: Geneva, Arial, Helvetica, sans-serif; font-size: 12px; "><br></span></div></span><br class="Apple-interchange-newline">
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