Pike-devel September 2014

pike-devel@lists.lysator.liu.se

9 participants
32 discussions

pike_frame->fun = FUNCTION_BUILTIN
by Arne Goedeke 16 Apr '26

16 Apr '26

In INIT, EXIT and some gc callbacks the fun in Pike_fp is set to FUNCTION_BUILTIN. there are some places in the code (e.g. ADT.List()->_get_iterator) where ->fun is used in INHERIT_FROM_INT et al, which segfaults (except with PIKE_DEBUG). I am not sure where to fix this. Should the *_FROM_INT macros check for FUNCTION_BUILTIN or is this better to be handled in the individual INIT/EXIT methods ? does anyone object to making ADT.Stack and ADT.Queue inherit ADT.List? arne

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managing comport settings in linux
by Henrik Grubbstr�m (Lysator) ＠ Pike (-) developers forum 10 Apr '26

10 Apr '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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Re: Playing music using pike and SDL.
by Martin Nilsson (lvl 60) ＠ Pike (-) developers forum 14 Mar '26

14 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)?

5 4

full MySQL 4.x support. or pike roadmap
by thomas.gusenleitner＠com-bet.com ＠ Pike developers forum 01 Mar '26

01 Mar '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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Setting socket options: so many, uhh, options!
by Chris Angelico 10 Mar '15

10 Mar '15

Topic branch: rosuav/sockopt Per Lance's suggestion, I've made a generic setsockopt() function. It works only with integers, so it's not suitable for SO_LINGER, which therefore should stay the way it is (linger() takes a magic parameter of -1), but it works for any of the simple boolean options. As to shortcut functions, though, there are a few ways they can be done. 1) set_keepalive() always exists, even if SO_KEEPALIVE isn't available. If you call it when there's no SO_KEEPALIVE, it sets errno and returns failure. 2) set_nodelay() exists only if TCP_NODELAY is available. 3) setsockopt() itself is useless without the constants, and Stdio.TCP_NODELAY will exist only if TCP_NODELAY is available. So in a Pike script, using setsockopt() requires either has_index() run-time checks or #if compile-time checks for the options you want; set_keepalive's model works easily if you know that the Pike version you're targeting supports it; and set_nodelay's model lets you treat older Pikes and systems without that feature the same way. I'd rather make it as easy as possible on the Pike code. Which way makes more sense? ChrisA

5 13

xenofarm?
by Stephen R. van den Berg 04 Dec '14

04 Dec '14

Xenofarm seems to have been out of order since a while, correct? -- Stephen.

6 7

debugger opcodes
by Bill Welliver 31 Oct '14

31 Oct '14

I noticed that folks have been working on code generation lately. Any chance it might be possible to implement some of the opcodes required to get debugging working (step, break, etc)? I seem to recall someone indicating it wasn't a terribly difficult task, but it's clearly beyond my understanding of the problem. Bill

4 6

Freeze of Debian 8.0 "jessie"
by Magnus Holmgren, Millnet/Lysator/Debian/Mensa ＠ Pike developers forum 17 Oct '14

17 Oct '14

A reminder since I neglected it the last time: The next release of Debian will be frozen on 5 November 23:59 UTC [1]. Any new versions must make it to testing before that, i.e. be uploaded before 26 October. If you wish to make another stable Pike release and have it be included in jessie, now is the time to start finalizing it. [1] https://release.debian.org/jessie/freeze_policy.html

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Re: Array augmented assignment doesn't always work
by Chris Angelico 01 Oct '14

01 Oct '14

On Wed, Oct 1, 2014 at 2:05 AM, Henrik Grubbström (Lysator) @ Pike (-) developers forum <10353(a)lyskom.lysator.liu.se> wrote: > No problem, the test program triggered the bug consistently, so it was > easy to find and fix the bug. > > Fixed in current Pike 8.0. > Thanks for that! Confirmed successful. It actually took me a while to make that test program. The failing code was deep inside several levels of indirection, but when I tried to do the same thing manually, I invariably used a string literal instead of a string variable - and then it worked perfectly :) But I'm glad there are these occasional over-optimization bugs. They're part and parcel with a highly optimized interpreter, and that's something I love about Pike. ChrisA

1 0

Array augmented assignment doesn't always work
by Chris Angelico 01 Oct '14

01 Oct '14

Apologies for the non-minimality of the test-case, but this is a smidge weird. The changes made in b2d25e "Compiler: Improved soundness of the op-assign optimizer" seem to have broken this: //Should print ({ }) to stdout and return 0, because the array should end up empty. //This is what happens in 7.8 on Windows. //In the latest 8.0, the first removal fails, so it shows ({ "a" }) and returns 1. array(string) arr=({"a","b","c"}); int main() { add_constant("G",this); compile_string("void x() {string z=\"a\"; G->arr-=({z});}")()->x(); compile_string("void x() {string z=\"b\"; G->arr=G->arr-({z});}")()->x(); compile_string("void x() {G->arr-=({\"c\"});}")()->x(); write("%O\n",arr); return sizeof(arr); } In theory, the three forms of element removal ought to be equivalent, but the first one doesn't seem to be functional. I'm afraid the details are a bit beyond me - the optimizer isn't something I'm familiar with. All I know is, bisection points to that commit, and reverting it on top of 8.0 makes the above script work correctly. Sorry for the vagueness. ChrisA

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Pike-devel September 2014