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3041 discussions

Time for new stable
by Peter Bortas ＠ Pike developers forum 03 Oct '06

03 Oct '06

It's that time of year again. Enough fixes have amassed in the stable Pike to warrant a release. I still have some things on my list that needs to be fixed before a release, so there will be another week or two until I make the beta, but start updating the Changelog and take a look at your personal list of bugs to see if something needs to be included. Note: Unless something changes the win32 build will be without assembler optimizations because unprotect doesn't work. I will probably not spend any more time looking at it this year. I know mast was working on something for 7.7, but I don't know what the status of that is.

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dynamically generated programs
by Bill Welliver 26 Sep '06

26 Sep '06

I'm working on some code that generates c level programs dynamically, and was wondering if there's any way to include some data in the program definition. Right now, I'm adding a string constant that contains some text, and when an object is created from the class, I fill in the c level structures. That works, but it seems somewhat less efficient than if I were able to specify some data for the program. I looked at the definition for struct program, and didn't see anything obvious, but figured I'd ask the experts :) For those interested in the rationale, I'm working on adding inheritability to my objective c module. I've got a method that will generate a pike program for an objective c class, inspecting the class and creating stubs for each method in that class. Right now, I don't see any way to include a pointer to the class in the program definition, so I'm currently adding a constant that contains the class name. Then, when the object is instantiated, I look up the constant and then look up the class from the value of the constant. I'd like to cut down on the overhead of this operation, if possible. Thoughts? Bill

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Spread the word 2.0! Pike Conf. 2006
by mbaehr＠email.archlab.tuwien.ac.at 15 Sep '06

15 Sep '06

(forward) Dear Pike users! Pike Conference 2006 can use your help with PR. We have placed revised releases at http://conference.gotpike.org and we welcome all efforts to get these into regional Pike/FLOSS groups. Translations are especially welcome though do indicate that the conference will be in English. Thanks and see you in Riga! Michael Dexter Conference Coordinator

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A hefty cleanse
by Martin Stjernholm, Roxen IS ＠ Pike developers forum 14 Sep '06

14 Sep '06

So Ssleay, Pipe, Perl and Mird are gone from 7.7. Was decided upon through a very enlightened consensus, I'm sure. Could we outsiders get a rundown on the rationale behind this too? Don't they work at all? Commit messages talk about removing from "standard Pike". Are they going to appear somewhere else?

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Re: threading and externally created threads
by H. William Welliver III 13 Sep '06

13 Sep '06

I finally had some time to look at this, and native_dispatch() had exactly what I was looking for. However, I found a problem (at least for me) in THREADS_ALLOW(): when you call this macro, it checks if threads are enabled and the number of threads. If there are more than one thread, it unlocks the interpreter. The problem is, if you only have one thread when you call THREADS_ALLOW(), the lock doesn't get released and any code running in "temporary pike external" threads will just sit there. I imagine that this is only a problem for things like the java bridge and my code, but thought I'd mention it in case there's a simple solution. I have taken to starting a thread that simply enters a sleep () loop before creating my external threads, and this works just fine. Anyone have a better solution? Bill Thu Sep 7 10:25:01, Henrik Grubbström (Lysator) at Pike (-) developers forum wrote: > > I'm working on an Objective-C bridge for Pike, and I've got a problem > Take a look at src/modules/Java/jvm.c:native_dispatch(). > > Bill

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developers at conference?
by H. William Welliver III 11 Sep '06

11 Sep '06

Will any of you guys be at the conference? I've got some questions about some ideas I have for the objective c bridge i've been working on, and figured it would be easier to have a conversation about it than try to do it via email.

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epoll
by Peter Bortas ＠ Pike developers forum 07 Sep '06

07 Sep '06

It's an implementation detail if epoll syscall comes with a device of not, so is there some special reason the configure test checks for /dev/epoll? I'm currently forceing it to epoll in machine.h to get it to build on Debian stable.

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threading and externally created threads
by H. William Welliver III 07 Sep '06

07 Sep '06

I'm working on an Objective-C bridge for Pike, and I've got a problem as it relates to threads that I'd like to get some input on. My module wraps Objective-C objects within Pike objects and the other way around. The problem I'm running into is when I try to create threads in Objective-C. I create the thread successfully (using NSThread). The new thread is supposed to run some c code that eventually finds a Pike function to run, pushes its arguments onto the stack, then calls the function with those arguments. When running in Hilfe, everything seems to work fine until I call apply_svalue(). At that point, Pike dies: > .NSClass("NSThread")->detachNewThreadSelector_toTarget_withObject_ ("run", dummythreadrunner(), .NSClass("NSString")->stringWithCString ("foo")); Whee! We're wrappin' an object, thread=-1610559648 PiObjCObject.methodSignatureForSelector: run (1) Result: 0 > PiObjCObject.forwardInvocation: run pushed args, thread=25755136 C stack overflow. src/modules/files/file.c:3913: Fd(0)->read (Public.ObjectiveC.dummythreadrunner()->run,"C stack overflow.\n") /usr/local/pike/7.6.86/lib/modules/Stdio.pmod/module.pmod:109: Stdio.File("stdin", "r", 777 /* fd=0 */)->read() /usr/local/pike/7.6.86/lib/modules/Stdio.pmod/Readline.pike:568: Stdio.Readline()->InputController()->run_blocking() /usr/local/pike/7.6.86/lib/modules/Stdio.pmod/Readline.pike:1603: Stdio.Readline()->edit("",UNDEFINED,UNDEFINED) /usr/local/pike/7.6.86/lib/modules/Tools.pmod/Hilfe.pmod:2258: Tools.Hilfe.StdinHilfe()->create(UNDEFINED) /usr/local/pike/7.6.86/lib/modules/Tools.pmod/Hilfe.pmod:0: Tools.Hilfe->StdinHilfe() As you can see, the thread is created, and code is running in the new thread. I've not released the thread lock in my code (it bails out either way), and until assign_svalue is called, all of the other calls to internal c-pike functions work successfully (see forwardInvocation PiObjCObject.m in CVS). Any suggestions about how I can solve this problem? source is available here: http://buoy.riverweb.com:8080/viewrep/cvs/pike_modules/Public_ObjectiveC Bill

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Image.Image()->scale(x) int or float?
by Martin Bähr 28 Aug '06

28 Aug '06

hi, i noticed a minor difference between the documentation and the implementation of Image.Image()->scale(); according to the documentation, if scale() is given only one argument, it must be a float. in reality it accepts an int as well as a float. this is significant in the sense that one could assume that scale(5) is equivalent to scale(5, 0) because that is usually the case when the second argument is optional, whereas in this case it actually is equivalent to scale(5.0) i prefer to assume that the documentation is wrong, but i would like to know if that assumption is correct. greetings, martin.

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Variable expansion in makefiles
by Marcus Agehall (PacketFront) ＠ Pike (-) developers forum 26 Aug '06

26 Aug '06

I'm trying to install new modules using monger but it's not working as I would expect. It seems to download and configure just fine, but the makefiles are broken. It seems the @propagated_variables@ keyword is never expanded and I can't figure out why. I've tried using both pike 7.6.26 and 7.7 from CVS. Currently I'm using autoconf 2.13 but I also tried with 2.50 with the same results. Anyone else experiencing the same thing or know what the problem is?

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