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3041 discussions

MySQL Stored procedures, empty resultset problem
by cschalkwijk 09 May '08

09 May '08

On calling a stored procedure which has (results in) an empty resultset, I get the following error message: PROCEDURE {SPROC_NAME} can't return a result set in the given context When looking up the error message on the MySQL website, the explanation does not seem to match the problem, because when there is a result (one or more) in the resultset, the problem does not occur. What am I doing wrong? (using the connect_option 0x20000 does not make a difference) Greetings Coen __________________________________________________________ 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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Very strange string literal problems
by cschalkwijk 06 May '08

06 May '08

(["connect_options":2]) When I tried adding the above mapping to my code. Roxen started, but remains unreachable via a webbrowser. But, and this is the strange part, when I change the string literal from "connect_options" to for example "variable", Roxen starts and is available. Isn't this strange?! I know this is the exact cause for the change to occur, since it is truly the only thing that was changes. Oh, I forgot to mention that I'm NOT EVEN USING the mapping :) . The error/strange behaviour purely results from creating the mapping: catch { mapping(string:int) tst_opt = (["connect_options":2]); dbconn = Sql.Sql( QUERY(db_string)); }; I didn't get to the part of actually using the mapping yet. __________________________________________________________ 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. __________________________________________________________

6 10

Spear !
by PeterPan 06 May '08

06 May '08

Hi! Pike team. I hooked Pike's compile_string() and compile_file(), and got a "new" language. I named it "Spear". In Spear, you can embed C code in Pike, and reference the variables each other. see the example: $ cat hello.spear #! /usr/bin/env spear void main() { C.INCLUDE("#include <stdio.h>"); C.CC("gcc -shared -fPIC"); string s="pike"; int n=2008; float pi=3.1415926535; C{ char* str="c string"; int m=514; double e=1.41421; printf("hello world!\n"); printf("printf %s string\n",STRING{s}); printf("printf pike int: %d\n",INT{n}); printf("printf pike float: %f\n",FLOAT{pi}); P{s="modify";} printf("%s pike var\n",STRING{s}); P{write("write %s\n",STRING{str});} P{write("write c int: %d\n",INT{m});} P{write("write c float: %f\n",FLOAT{e});} } } $ pike -x spear hello.spear hello world! printf pike string printf pike int: 2008 printf pike float: 3.141593 modify pike var write c string write c int: 514 write c float: 1.414 How to install: Extract the attachment in Pike-v7.7-snapshot and make. Please see the README-spear: $ cat README-spear Install: tar xzvf snapshot.tar.gz cd Pike-v7.7-snapshot tar xzvf ../Pike-Spear-vN.N.NNNNNNNNN.tar.gz Note: * src/Makefile.in is base on Pike-v7.7.44-20080421, do a vimdiff before use with a diffrent version of Pike.

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7.8 blockers
by Mirar ＠ Pike developers forum 04 May '08

04 May '08

> strlen(Image.JPEG.encode(Image.load("DSC00354.JPG")->scale(0.5))); *** glibc detected *** pike: munmap_chunk(): invalid pointer: 0x0000000000a6a780 *** ======= Backtrace: ========= /lib/libc.so.6(cfree+0x1b6)[0x2af065141d46] /usr/lib/libjpeg.so.62[0x2af066af7ffa] /usr/lib/libjpeg.so.62[0x2af066af80fb] /usr/lib/libjpeg.so.62(jpeg_destroy+0x10)[0x2af066af7540] /usr/local/pike/7.6.112/lib/modules/_Image_JPEG.so[0x2af066425e68] /usr/lib/libjpeg.so.62[0x2af066ae78ea] /usr/lib/libjpeg.so.62[0x2af066ae4fca] /usr/lib/libjpeg.so.62[0x2af066ae3ef6] /usr/lib/libjpeg.so.62(jpeg_write_scanlines+0x9f)[0x2af066ae0dff] /usr/local/pike/7.6.112/lib/modules/_Image_JPEG.so[0x2af066427cd2] pike(low_mega_apply+0xc7d)[0x42c73d] ...

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7.8 blockers
by Mirar ＠ Pike developers forum 04 May '08

04 May '08

I get a lot of these: ==29264== Conditional jump or move depends on uninitialised value(s) ==29264== at 0x84335A5: (within /usr/lib/libjpeg.so.62.0.0) ==29264== by 0x8430FC9: (within /usr/lib/libjpeg.so.62.0.0) ==29264== by 0x842FEF5: (within /usr/lib/libjpeg.so.62.0.0) ==29264== by 0x842CDFE: jpeg_write_scanlines (in /usr/lib/libjpeg.so.62.0.0) ==29264== by 0x822015C: image_jpeg_encode (image_jpeg.c:912) ==29264== by 0x44B132: low_mega_apply (apply_low.h:225) ==29264== by 0x445B7A: eval_instruction (interpret_functions.h:2065) ==29264== by 0x44DDA8: catching_eval_instruction (interpret.c:2225) ==29264== by 0x440C37: eval_instruction (interpret_functions.h:1286) ==29264== by 0x44DD26: mega_apply (interpret.c:2195) ==29264== by 0x51D4FA: call_pike_initializers (object.c:333) ==29264== by 0x51D925: parent_clone_object (object.c:416) but they don't seem to be harmful?

1 0

7.8 blockers
by Mirar ＠ Pike developers forum 03 May '08

03 May '08

...hm, I thought I had a newer Pike. Doesn't trigger with 7.7.39, is it fixed?

2 2

inherit resolving problem
by Martin Nilsson (Opera Mini - AFK!) ＠ Pike (-) developers forum 03 May '08

03 May '08

If I create a module X.pmod with the contents class Y { class X { } } and then tries to run the following program class Z { inherit X.Y; } void main() { } I will get the error that 'Index Y not present in module "X".' Doing other things with X.Y is however possible, like declaring a variable "X.Y foo;" in the Z class or making the statement werror("%O\n", indices(X.Y)); in main().

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Re: MySQL or Pike?
by Marcus Comstedt (ACROSS) (Hail Ilpalazzo!) ＠ Pike (-) developers forum 24 Apr '08

24 Apr '08

>It is MySQL 5.0: >http://dev.mysql.com/doc/refman/5.0/en/myodbc-configuration-connection-para… This page seems to be about some ODBC connector, which I'm sure you are not using? >Oh, I forgot to mention that I'm NOT EVEN USING the mapping :). The >error/strange behaviour purely results from creating the mapping: > >................catch { >........................mapping(string:int) tst_opt = >(["connect_options":2]); >........................dbconn = Sql.Sql( QUERY(db_string)); >................}; > >I didn't get to the part of actually using the mapping yet. > >Strange, strange, strange... Well, yes, that _is_ weird. :-)

1 0

MySQL or Pike?
by cschalkwijk 24 Apr '08

24 Apr '08

When using MySQL 5.0 with Pike 7.4 I get an error message (only) when a called stored procedure has an empty resultset. Calling the stored procedure with a MySQL management application does not result in any problems. I get the following message: PROCEDURE {X} can't return a result set in the given context Now, is this Pike or MySQL? If it's Pike, what am I doing wrong? If it's MySQL, well, any suggestions? Coen __________________________________________________________ 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. __________________________________________________________

2 3

Getopt mark II
by Martin Nilsson (Opera Mini - AFK!) ＠ Pike (-) developers forum 19 Apr '08

19 Apr '08

(or rather Getopt mark III, since I've already rewritten the current one, although no functionality was changed then) I've been working a bit on a new Argument parser, and would like some input. In reality there will be two different way of using the argument parser, which really doesn't share any code but is convenient to do at the same time. The first one is a "I just want to get this over with" kind of interface: void main(int num, array argv) { mapping args = Arg.parse(argv); argv = args[Arg.REST]; } The output will contain ([ "foo":1 ]) if the argument is --foo and ([ "foo":"bar" ]) if the argument is --foo=bar. There is no fancy stuff to handle default values (just or it with another mapping) or options that may or may not have values (e.g. -bar=foo will produce ([ "b":1, "a":1, "r":"foo" ]) and --foo x --bar will just produce ([ "foo":1 ]) and then stop processing the line). The other mode is the (supposedly) easy yet powerful mode that you would use for more mature applications. class Parser { inherit Arg.Options; Arg verbose = NoArg("-v")|NoArg("--verbose")|Env("VERBOSE"); Arg level = HasArg("-l")|HasArg("--level"); } void main(int n, array argv) { Parser p = Parser(argv); // Index magic. Some like it, some not so much. if( p->verbose ) werror("Level %s\n", p->level); } Which is extended in class Parser { // The name for now. inherit Arg.OptionsSupreme; Arg verbose = NoArg("-v")|NoArg("--verbose")|Env("VERBOSE"); // These are used in the automatically generated --help response. string help_pre = "This program is like awesum."; string verbose_help = "Increases the verbosity of the program."; // Called when/if verbose is set to a value. void verbose_cb(string arg) { werror("Verbosity is on.\n"); } } Does this match the long list of requirements that I've heard from others?

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