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I'm not keen on it.<BR>
Checking the version and having two implementation switched between at initialization would be ok though -- actually using function pointers like so:<BR>
<BR>
void DoSomething_v2(void) { }<BR>
void DoSomething_v1(void) { }<BR>
void DoSomething_init(void)<BR>
{<BR>
if (... )<BR>
DoSomething = DoSomething_v1;<BR>
else<BR>
DoSomething = DoSomething_v2;<BR>
DoSomething();<BR>
}<BR>
<BR>
void (*DoSomething)(void) = DoSomething_init;<BR>
<BR>
Something more if switching multiple pointers though -- switching a pointer to a struct of function pointers.<BR>
<BR>
<BR>
- Jay<BR><BR> <BR>
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From: hosking@cs.purdue.edu<BR>To: jay.krell@cornell.edu<BR>Date: Tue, 21 Apr 2009 14:33:29 +1000<BR>CC: m3devel@elegosoft.com<BR>Subject: Re: [M3devel] crummy ThreadWin32.m3 implementation?<BR><BR>Might not be such a bad thing ;-)
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<DIV>On 21 Apr 2009, at 14:14, Jay wrote:</DIV><BR class=EC_Apple-interchange-newline>
<BLOCKQUOTE><SPAN class=EC_Apple-style-span style="WORD-SPACING: 0px; FONT: 12px Helvetica; TEXT-TRANSFORM: none; COLOR: rgb(0,0,0); TEXT-INDENT: 0px; WHITE-SPACE: normal; LETTER-SPACING: normal; BORDER-COLLAPSE: separate">
<DIV class=EC_hmmessage style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Only if you drop support for pre-Vista versions.<BR> <BR> - Jay<BR><BR><BR> <BR>> From:<SPAN class=EC_Apple-converted-space> </SPAN><A href="mailto:hosking@cs.purdue.edu">hosking@cs.purdue.edu</A><BR>> To:<SPAN class=EC_Apple-converted-space> </SPAN><A href="mailto:jay.krell@cornell.edu">jay.krell@cornell.edu</A><BR>> Date: Tue, 21 Apr 2009 07:53:57 +1000<BR>> CC:<SPAN class=EC_Apple-converted-space> </SPAN><A href="mailto:m3devel@elegosoft.com">m3devel@elegosoft.com</A><BR>> Subject: Re: [M3devel] crummy ThreadWin32.m3 implementation?<BR>><SPAN class=EC_Apple-converted-space> </SPAN><BR>> Also, note that win32 now supports CVs directly! No need for<SPAN class=EC_Apple-converted-space> </SPAN><BR>> semaphores.<BR>><SPAN class=EC_Apple-converted-space> </SPAN><BR>> On 20 Apr 2009, at 19:11, Jay wrote:<BR>><SPAN class=EC_Apple-converted-space> </SPAN><BR>> ><BR>> > Searching the web...finds this which seems very relevant:<BR>> ><BR>> ><SPAN class=EC_Apple-converted-space> </SPAN><A href="http://birrell.org/andrew/papers/ImplementingCVs.pdf">http://birrell.org/andrew/papers/ImplementingCVs.pdf</A><BR>> ><BR>> > - Jay<BR>> ><BR>> ><BR>> ><BR>> > ----------------------------------------<BR>> >> From:<SPAN class=EC_Apple-converted-space> </SPAN><A href="mailto:jay.krell@cornell.edu">jay.krell@cornell.edu</A><BR>> >> To:<SPAN class=EC_Apple-converted-space> </SPAN><A href="mailto:m3devel@elegosoft.com">m3devel@elegosoft.com</A><BR>> >> Date: Mon, 20 Apr 2009 08:47:21 +0000<BR>> >> Subject: [M3devel] crummy ThreadWin32.m3 implementation?<BR>> >><BR>> >><BR>> >> Um, ThreadWin32.m3 looks pretty crummy -- all LockMutex calls<SPAN class=EC_Apple-converted-space> </SPAN><BR>> >> bottleneck on one giant lock. .v0 and .v1 aren't bad this way.<BR>> >><BR>> >><BR>> >> - Jay<BR>><SPAN class=EC_Apple-converted-space> </SPAN><BR>><SPAN class=EC_Apple-converted-space> </SPAN><BR></DIV></SPAN></BLOCKQUOTE></DIV><BR></DIV></body>
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