Pike-devel

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3041 discussions

FreeType
by Marcus Comstedt (ACROSS) (Hail Ilpalazzo!) ＠ Pike (-) developers forum 15 Jan '03

15 Jan '03

I found the problem with FreeType on my machine. The pike module never selects any CharMap, and in this freetype version the default seems to be "no charmap", i.e. FT_Load_Char() will interpret the argument as a glyph number. This patch fixed the problem for me, could somebody who _already has a working FreeType module_ try it out and see if it breaks anything for them? Index: src/modules/_Image_FreeType/freetype.c =================================================================== RCS file: /pike/data/cvsroot/Pike/7.4/src/modules/_Image_FreeType/freetype.c,v retrieving revision 1.13 diff -u -r1.13 freetype.c --- freetype.c 2002/11/29 20:56:46 1.13 +++ freetype.c 2003/01/15 13:45:03 @@ -199,6 +199,8 @@ static void image_ft_face_create( INT32 args ) { int er; + FT_Encoding best_enc = ft_encoding_none; + int enc_no, enc_score, best_enc_score = -2; if( !args || sp[-args].type != T_STRING ) Pike_error("Illegal argument 1 to FreeType.Face. Expected string.\n"); er = FT_New_Face( library, sp[-args].u.string->str, 0, &TFACE ); @@ -206,6 +208,22 @@ Pike_error( "Failed to parse the font file %s\n", sp[-args].u.string->str ); else if( er ) Pike_error( "Failed to open the font file %s\n", sp[-args].u.string->str ); + for(enc_no=0; enc_no<TFACE->num_charmaps; enc_no++) { + enc_score = 0; + switch(TFACE->charmaps[enc_no]->encoding) { + case ft_encoding_symbol: enc_score = -1; break; + case ft_encoding_unicode: enc_score = 2; break; + case ft_encoding_latin_1: enc_score = 1; break; + } + if(enc_score > best_enc_score) { + best_enc_score = enc_score; + best_enc = TFACE->charmaps[enc_no]->encoding; + } + } + er = FT_Select_Charmap(TFACE, best_enc); + if( er ) + Pike_error( "Failed to set a character map for the font %s\n", + sp[-args].u.string->str ); pop_n_elems( args ); push_int( 0 ); }

1 0

sscanf?
by Peter Bortas ＠ Pike developers forum 13 Jan '03

13 Jan '03

Where if http://david.hedbor.org/pikeman/docs/tutorial_7.html#sscanf hiding in the new manual?

3 6

GC improvement
by Martin Stjernholm, Roxen IS ＠ Pike developers forum 13 Jan '03

13 Jan '03

I've developed the gc strategy a bit so that it also takes the time spent in the gc into account. There is now a low and a high garbage level. The gc tries to keep the low one as long as the total cpu time spent in the gc doesn't get too large, then it resorts to the higher one. I thought that could be useful since the gc otherwise can take a lot of time in a process that both has many nongarbage objects and generates a lot of garbage. I've also added a function Pike.gc_parameters to make it possible to tune these parameters. The current defaults are: Low garbage ratio: 20% of all allocated things is garbage. GC time ratio: 5% cpu time spent in the gc. High garbage ratio: 50% of all allocated things is garbage. These are set on feeling only and hardly tested at all. It's therefore very appreciated if someone could do some tuning with a big and busy pike process. (The function Debug.gc_status is useful to get info about the gc performance.)

5 13

Making strings
by Martin Nilsson (�skblod) ＠ Pike (-) developers forum 12 Jan '03

12 Jan '03

There appears to be several ways to create constant strings. MAKE_CONSTANT_SHARED_STRING make_shared_binary_string make_shared_string What are the practical differences?

3 4

Trace levels and the garbage collector
by Martin Stjernholm, Roxen IS ＠ Pike developers forum 11 Jan '03

11 Jan '03

I've often missed turning on tracing on the gc only. As it is now, one can get tracing from the gc on trace level 1, but that at the same time turns on tracing on a multitude of other things which makes it mostly useless. This can either be fixed by adding a separate trace flag for the gc and some accompanying gc_trace() function, or by increasing all the current trace levels to make room for a new trace level 1 that only traces the gc. I think it'd be more consistent with the current trace system to do the latter. What do you say?

3 7

array.c
by Peta, jo det �r jag ＠ Pike developers forum 10 Jan '03

10 Jan '03

Since I don't have great experience with the pike code i though I better ask before I change. I've been working a bit with array.c and in some places does the code set the size of the array to 0 before it call free_array. Line 326 in the function array_insert is an example. Shold it do that? I believe this cause problems when I have an array with more than one reference.

2 1

PLEAC
by Martin Nilsson (bygger parser ＠ Pike (-) developers forum 10 Jan '03

10 Jan '03

We should really work on getting a Pike entry here. It'll require quite a lot of work though. http://pleac.sourceforge.net/

11 40

simple_array_index_no_free
by Peta, jo det �r jag ＠ Pike developers forum 10 Jan '03

10 Jan '03

I'm trying to get the value for an index in a array and use simple_array_index_no_free but only manage to make a coredump. I guess i could have something with the stack to do since when I run a test program like this. int main() { array a = ({3,4,5,6,7,8,9,10,11}); Test.ArrayAdapter ad = Test.ArrayAdapter(a); write(sprintf("array %d adapter %d\r\n", a[1], ad[1])); for (int n=0; n< 9; n++) { write(sprintf("array %d adapter %d\r\n", a[n], ad[n])); } } It will produce a coredump. But if replace the ad[1] with ad[1]=11 then it will work. Does anyone have a idea what I've forgotten? Or is simple_array_index_no_free the wrong way to go? Greatfull for any help. Code follows... DECLARATIONS PIKECLASS ArrayAdapter { CVAR int pos; CVAR struct array *a; PIKEFUN int `[](mixed index) { struct svalue *s; simple_array_index_no_free(s, THIS->a, index); if (s) { push_svalue(s); } else { push_int(0); Pike_sp[-1].subtype=NUMBER_UNDEFINED; } } PIKEFUN int `[]=(mixed index, mixed value) { simple_set_index(THIS->a, index, value); } PIKEFUN void create(array a) { add_ref(THIS->a=a); } INIT { THIS->a=0; THIS->pos=0; } EXIT { free_array(THIS->a); } }

7 8

Protocols.LDAP bug
by David Gourdelier 10 Jan '03

10 Jan '03

Hi, The LDAP autodoc says the following about search method : object|int search(string|void filter, array(string)|void attrs, int|void attrsonly). However if i call it without any arguments, i get a backtrace in string_to_utf8: if(ldap_version == 3) { filter = string_to_utf8(filter); } in client.pike (for me it is line 905). If I modify it to something like if(ldap_version == 3 && filter) I have other problems also related to filter=0. I use pike 7.2.380, LDAP protocol 3. PS: Do you have any bug management system ?, if yes can you put a link to it from Pike website ? (I looked in Development section and search for "bug" but didn't found anything). -- David Gourdelier

1 0

--with-machine-code continued
by Mirar ＠ Pike developers forum 10 Jan '03

10 Jan '03

I'll add the -fno-omit-frame-pointer kludge. It can always be removed when not needed...

1 0

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