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<TITLE>sane-devel: Re: Code freeze for 1.0.3</TITLE>
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<META NAME="Author" CONTENT="Yuri Dario (mc6530@mclink.it)">
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<META NAME="Subject" CONTENT="Re: Code freeze for 1.0.3">
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<H1>Re: Code freeze for 1.0.3</H1>
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<!-- received="Fri Aug 4 02:57:51 2000" -->
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<!-- subject="Re: Code freeze for 1.0.3" -->
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<STRONG>From:</STRONG> Yuri Dario (<A HREF="mailto:mc6530@mclink.it?Subject=Re:%20Code%20freeze%20for%201.0.3&In-Reply-To=<200008040957.LAA00905@mail1.mclink.it>"><EM>mc6530@mclink.it</EM></A>)<BR>
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<STRONG>Date:</STRONG> Fri Aug 04 2000 - 02:57:05 PDT
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<P>
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<P>
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Hi,
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<BR>
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<P><EM>>Ok, if it is a relative simple change we can include it in the sourcecode.
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</EM><BR>
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<P>actually things are a lot easier than one year ago :-)
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<BR>
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<P>I have managed to get most changes using macro preprocessing. Now
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<BR>
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waitpid(), kill(), fork() are routed to sanei_thread_* functions using
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<BR>
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preprocessor macros.
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<BR>
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To properly wrap fork() I have added a new variable that is needed for
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<BR>
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sanei_thread_begin(); it is the pointer to the scanner data structure.
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<BR>
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Also the write end of the pipe must not be closed, and this require
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<BR>
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only a #ifdef ... #endif around it.
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<BR>
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<P>There is also a new function called os2_reader_process: it is executed
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<BR>
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in the second thread and is responsable of calling the reader()
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<BR>
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function. It's code is quite the same on all backends, needs only to
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<BR>
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have the correct reader() prototype call.
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<BR>
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<P>Having a common way to invoke the reader process will simplify coding a
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<BR>
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lot.
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<BR>
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<P>Actually my changes compiled on all backends but HP: this has a
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<BR>
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different approach to fork.
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<BR>
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<P>I hope to get a common approach about threading in the future.
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<BR>
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<P><P>Bye,
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<BR>
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<P> Yuri Dario
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<BR>
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<P>/*
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<BR>
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* member of TeamOS/2 - Italy
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<BR>
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* <A HREF="http://www.quasarbbs.com/yuri">http://www.quasarbbs.com/yuri</A>
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<BR>
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*/
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<BR>
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<P><P><P><PRE>
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--
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Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20Code%20freeze%20for%201.0.3&In-Reply-To=<200008040957.LAA00905@mail1.mclink.it>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0044.html">Oliver Rauch: "xsane-0.61 available as sourcecode and win32 binary"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0042.html">Oliver Rauch: "Re: Code freeze for 1.0.3"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0045.html">Henning Meier-Geinitz: "Re: Code freeze for 1.0.3"</A>
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<EM>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Fri Aug 04 2000 - 02:58:17 PDT</EM>
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