Pike-devel February 2009

pike-devel@lists.lysator.liu.se

8 participants
15 discussions

Re: Playing music using pike and SDL.
by Martin Nilsson (lvl 60) ＠ Pike (-) developers forum 13 Mar '26

13 Mar '26

Were you not able to get any C code to play through SDL either? Does your SDL library have a mixer compiled in it (I think it is optional)?

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managing comport settings in linux
by Henrik Grubbstr�m (Lysator) ＠ Pike (-) developers forum 13 Mar '26

13 Mar '26

Not a good idea; the design philosophy of Pike is that Pike-level code should never be able to cause memory corruption at C-level. With ioctls there's no way to know what data a specific ioctl wants without reading the documentation for that specific ioctl for that specific OS. ioctls and fcntls are a way for device handlers to hook in APIs that aren't standard across all filedescriptors. / Henrik Grubbström (Lysator) Previous text: >2004-08-17 13:32: >Subject: managing comport settings in linux >-------------------------------------------------------------------- >What would be nice, is a way to define ioctl methods in >Pike. Perhaps something like > >object i = Stdio.IOCTL(4242 /* request_id */ ); >i->add_int_parameter(); >i->add_string_parameter(); >i->set_return_type(STRING); > >string ret = i(fd, 1, "somestring"); > > >That ought to be possible, or..? > > / Marcus Agehall (PacketFront) >

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full MySQL 4.x support. or pike roadmap
by thomas.gusenleitner＠com-bet.com ＠ Pike developers forum 28 Feb '26

28 Feb '26

HI to all! mysql 4.x support works only with a mysql CFLAGS=-DUSE_OLD_FUNCTIONS is this correct ? are there plans to make a full 4.x support ? bye, thomas

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trademark question
by Martin Bähr 21 Apr '09

21 Apr '09

hi, i am reviewing the pike entry on wikipedia and noticed that the logo image lacks clear license information. while trying to find out what the actual license is i found that there is no clear information on the pike website either. i think it would be helpful if http://pike.ida.liu.se/about/pike/ contained a phrase like: the pike name and logo are registered trademarks of IDA. i would also like to clarify the license of the logo images on http://pike.ida.liu.se/download/logotype/ i believe there is no problem with making them gpl or mpl since they are protected by a trademark anyways. are there any issues with adding these clarifications on the pike site? greetings, martin.

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GIF comments
by cschalkwijk 23 Feb '09

23 Feb '09

Hi, Is it possible to add a comment to a GIF file with the Image.GIF library? (using pike 7.4) If this is possible at all, does anyone have some sample code? -- Met vriendelijke groet / With kind regards / mit besten Grüßen, Coen Schalkwijk Software Engineer coen.schalkwijk(a)rtl.nl <mailto:coen.schalkwijk@rtl.nl> coen(a)rtlinteractief.nl <mailto:coen@rtlinteractief.nl> +31 (0)35 671 8915 __________________________________________________________ Deze e-mail en de inhoud is vertrouwelijk en uitsluitend bestemd voor de geadresseerde(n). Indien u niet de geadresseerde bent van deze e-mail verzoeken wij u dit direct door te geven aan de verzender door middel van een reply e-mail en de ontvangen e-mail uit uw systemen te verwijderen. Als u geen geadresseerde bent, is het niet toegestaan om kennis te nemen van de inhoud, deze te kopieren, te verspreiden, bekend te maken aan derden noch anderszins te gebruiken. The information contained in this e-mail is confidential and may be legally privileged. It is intended solely for the addressee. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. Please notify us immediately if you have received it in error by reply e-mail and then delete this message from your system. __________________________________________________________

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resolver problem using .Class
by Arne Goedeke 15 Feb '09

15 Feb '09

I noticed this problem when using pike -M in 7.6 and I guess its known, since it does not occur anymore in pike 7.8. Consider this situation: one has some module directory and a class from that module is used somewhere in module.pmod. Using these examples * dir/module.pmod string h(int i) { return .A()->h(i); } * dir/A.pike string h(int i) { return String.int2char(i); } Now, when using pike -M dir/ I get the following error: dir/A.pike:2:Got placeholder object (resolver problem) when resolving 'String'. dir/A.pike:2:Undefined identifier "String". dir/A.pike:2:Got placeholder object (resolver problem) when resolving 'String'. dir/A.pike:2:Undefined identifier "String". dir/module.pmod:2:Error looking up 'A' in module '.'. Attempt to call the NULL-value Unknown program: 0() The problem goes away either by using A() instead of .A() or by using pike -M dir without the "/". Is this a bug or am I doing something wrong here? arne

2 1

replace() with hit information
by Stephen R. van den Berg 14 Feb '09

14 Feb '09

Would replace(string, array(string), array(string), mapping(string:int)) be a useful/convenient interface for the following functionality?: I'd like the 4th argument mapping to be filled by the replace function to tally the number of times it has found and replaced the corresponding string. It is difficult at best to obtain that information (efficiently) otherwise, especially when some of the strings fit in the prefix of some of the others. The actual use case for me is the bindings parser for pgsql, which preferably needs to eliminate any unused variables before constructing the query to be sent to the database. The reason I'm looking at this is because I just had an occurrence of a binding called ":telno" and ":telnopriv", whereas the :telno wasn't present, but the :telnopriv was. Quick checks with has_value() break down in this case, because :telno is found as a prefix of the actually occurring :telnopriv, obviously. Any alternate ideas which solve this problem are welcome, of course. -- Sincerely, Stephen R. van den Berg. "Having a non-smoking section in a restaurant is like having a non-peeing section in a pool."

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Re: Unable to call MySQL stored procedures from Pike v7.6 release 112
by Stephen R. van den Berg 14 Feb '09

14 Feb '09

Kai Voigt wrote: >a stored procedure in MySQL doesn't return anything itself, but it >might include one or more SQL statements which are returned to the >calling client as if those statements would have been called >individually. >Note that you might have to handle multiple statements in a stored >procedure. I see. So I presume that stored procedures in MySQL are not invoked through mere SELECTs? It would imply, though, that if you stick to at most one SELECT resultset in your MySQL stored procedure, then the current Sql interface in Pike will/should suffice. Oracle and PostgreSQL can return at most a single resultset, and are invoked through SELECT normally. -- Sincerely, Stephen R. van den Berg. "<Clarions sounding> *No one* expects the Spanish inquisition!"

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FakeFile() and to assign() or not to assign()
by Stephen R. van den Berg 12 Feb '09

12 Feb '09

Is there a particular reason this doesn't work: Pike v7.8 release 127 running Hilfe v3.5 (Incremental Pike Frontend) > Stdio.FILE in; > (in=Stdio.FILE())->assign(Stdio.FakeFile("foo\nbar\n")); Stdio.File(): not open. /usr/local/pike/7.8.127/lib/modules/Stdio.pmod/module.pmod:1490: Stdio.FILE(0, 0, 777 /* fd=-1 */)->set_read_callback(0) /usr/local/pike/7.8.127/lib/modules/Stdio.pmod/module.pmod:1192: Stdio.FILE(0, 0, 777 /* fd=-1 */)->set_read_callback(0) /usr/local/pike/7.8.127/lib/modules/Stdio.pmod/module.pmod:727: Stdio.FILE(0, 0, 777 /* fd=-1 */)->assign(Stdio.FakeFile(8,"rw")) /usr/local/pike/7.8.127/lib/modules/Stdio.pmod/module.pmod:1776: Stdio.FILE(0, 0, 777 /* fd=-1 */)->assign((a)0=Stdio.FakeFile(8,"rw")) > -- Sincerely, Stephen R. van den Berg. I'm sorry. The number you have reached is imaginary. Please rotate your phone 90 degrees and try again.

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Re: FakeFile() and to assign() or not to assign()
by Stephen R. van den Berg 12 Feb '09

12 Feb '09

Arne Goedeke wrote: >Stephen R. van den Berg wrote: >>> Stdio.FILE in; >>> (in=Stdio.FILE())->assign(Stdio.FakeFile("foo\nbar\n")); >> Stdio.File(): not open. >Not sure what you expect it to do. Stdio.File operates on an fd, >FakeFile does not have any. I think that assign is meant to be used for >Stdio.File subclasses primarily. Well, I'd like to have a FakeFile() with getchar(), gets() and unread(). So I thought, opening a Stdio.FILE() with a FakeFile() as source should do the trick. -- Sincerely, Stephen R. van den Berg. The first 90% of code accounts for the first 90% of development time. The remaining 10% of code accounts for the other 90% of development time.

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Pike-devel February 2009