<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div apple-content-edited="true"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: 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: 0; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; 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font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; -webkit-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; -webkit-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; -webkit-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; -webkit-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; -webkit-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div><span class="Apple-style-span" style="font-size: medium;"><font class="Apple-style-span" color="#0000FF" face="'Gill Sans'">There should be no traced references manipulated in ThreadBase.</font></span></div><div><font class="Apple-style-span" color="#0000FF" face="'Gill Sans'"><span class="Apple-style-span" style="font-size: medium;"><br></span></font></div><div><font class="Apple-style-span" color="#0000FF" face="'Gill Sans'"><span class="Apple-style-span" style="font-size: medium;">In RunThread, self is kept live by simply holding it on the stack.</span></font></div><div><font class="Apple-style-span" color="#0000FF" face="'Gill Sans'"><span class="Apple-style-span" style="font-size: medium;"><br></span></font></div><div><font class="Apple-style-span" color="#0000FF" face="'Gill Sans'"><span class="Apple-style-span" style="font-size: medium;">You will probably have trouble eliminating the slots array. We need a global to hang on to the traced Thread.T. How else do you propose to associate untraced pthreads with their traced Thread.T?</span></font></div></span></span></span></span></span></span></span></span></div></span></div></span> </div><br><div><div>On 8 Nov 2009, at 18:05, Jay K wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: 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; "><div class="hmmessage" style="font-size: 10pt; font-family: Verdana; ">ThreadBase/RunThread -- something seems a little off to me here.<br> <br> <br>I merged the functions.<br>Stuff is supposed to work asif there is arbitrary inlining.<br> At least until/unless we get a pragma to mark a function as not inlinable or a direct language feature analogous to "volatile" to preserve locals -- currently inserting try does it but that's an implementation detail I think.<br> <br> <br>However, I wonder, in taking the address of "xx", isn't ThreadBase a bit..gambling?<br>You know, the traced references might be before or after xx in the stack, so xx might not cover it.<br> <br> <br>The code is safe because the only traced reference is "self" which also is reachable via slots.<br> <br> <br>In particular I'm trying to link Activation<=>T and introduce allThreadsTraced analogous to allThreads -- a global list of all threads, covering their traced part.<br>That way AssignSlots/FreeSlots and the slots lock would go away.<br>Removing locks seems like a good thing in general.<br>Overall space consumption wouldn't be much different, I'd trade an array of pointers, one pointer per thread, for two pointers embedded in each thread plus a global pointer. But the ability to fetch Self() faster or RunThread to block on less or no locking would be good -- not that Self() is used much anymore.<br> <br> <br>I keep seeing strange failures and I wonder if taking away the slots reference leaves me with insufficient reference.<br>Or maybe I'm breaking it some other way.<br> <br>I tried building up allThreadsTraced earlier, while stackbase isn't settable, and have code watch for stackbase = NIL but still no luck.<br> <br> <br>I'll try more later...<br> <br> <br> - Jay<br></div></span></blockquote></div><br></body></html>