http://blog.gmane.org/gmane.comp.db.metakit hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://comments.gmane.org/gmane.comp.db.metakit/2339 I am working on packaging metakit for Debian, and I noticed that there is no SONAME in the default library provided. I was wondering what rules you guys have for ABI compatibility - will you not break ABI compatibiliy, or is the 4 in mk4 the ABI/API version? In other words, is there any easy way to tell when a new release of metakit will break programs that link against it dynamically? (recompilation is not an issue) Sean Hunt --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the "metakit" group. To post to this group, send email to metakit< at >googlegroups.com To unsubscribe from this group, send email to metakit-unsubscribe< at >googlegroups.com For more options, visit this group at http://groups.google.com/group/metakit?hl=en -~----------~----~----~----~------~----~------~--~--- Sean Hunt 2008-05-07T23:13:58 http://comments.gmane.org/gmane.comp.db.metakit/2338 Hi, i need to make a windows build of a python program that uses metakit. I have read that i should use the latest version of metakit to be able to use python 2.5. However i have been unable to find binaries for download. I ask one of 2 things: 1) Someone share their binaries (from what i understand, a single DLL) if they have made them 2) Someone point me to instructions on how to make them myself. I do not have a C compilation environment set up. I have python, wx and py2exe setup that i have used before, but this time i would need metakit too. I'm on a bit of a tough spot here so i'd really appreciate any help. Hugo --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the "metakit" group. To post to this group, send email to metakit< at >googlegroups.com To unsubscribe from this group, send email to metakit-unsubscribe< at >googlegroups.com For more options, visit this group at http://groups.google.com/group/metakit?hl=en -~----------~----~----~----~---- cttw 2008-04-29T21:21:03 http://comments.gmane.org/gmane.comp.db.metakit/2337 Hi, Has anyone made a study of Metakit's memory usage patterns? I'm asking because I've created an 'associative database' layer on top of Metakit, which I plan to deploy on a server with harsh memory limitations. My database over time is likely to end up with tens or hundreds of thousands of rows across 3 views. Use of derived rows will be kept fairly minimal. Metakit appeals to me because of its nested views. But for such a size of database, I'm worried that memory usage during the lifetime of 'storage' objects will grow in proportion to the size of the database. For such a size of database, would I be better off using my MySQL version of the layer? Cheers Dave --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the "metakit" group. To post to this group, send email to metakit< at >googlegroups.com To unsubscribe from this group, send email to metakit-unsubscribe< at >googlegroups.com For more options, visit this group at http://groups.google.com/group Dave 2008-04-27T23:26:35 http://comments.gmane.org/gmane.comp.db.metakit/2332 I'm trying to use metakit with mingw C++ under windows XP, but my data seems to be getting curupted. this is my code: #include "mk4.h" #include "mk4str.h" #include <iostream> #include <string> const std::string test_table_name("tst"); const std::string ID_field_name("ID"); const std::string result_field_name("result"); const std::string test_number_field_name("testnum"); c4_StringProp pID (ID_field_name.c_str()); c4_DoubleProp pResult (result_field_name.c_str()); c4_LongProp pTestNum (test_number_field_name.c_str()); int main() { std::cout << "testing MetaKit" << std::endl; c4_Storage storage ("testmetakit.dat", true); std::cout << storage.Description() << std::endl; // Start with an empty view of the proper structure. c4_View record = storage.GetAs((test_table_name + "[" + ID_field_name + ":S," + test_number_field_name + ":L," + result_field_name + " :D]").c_str()); c4_Row row; double result; long test_number; std::string id; s EdK 2008-03-12T20:28:12 http://comments.gmane.org/gmane.comp.db.metakit/2331 I recently compiled 2.4.9.7 and I am running into the following situation. Any idea where to turn? % load ./libMk4tcl2.4.9.7.so couldn't load file "./libMk4tcl2.4.9.7.so": ./libMk4tcl2.4.9.7.so: undefined symbol: __cxa_pure_virtual My TCL is a binary build straight out of the fedora distribution. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the "metakit" group. To post to this group, send email to metakit< at >googlegroups.com To unsubscribe from this group, send email to metakit-unsubscribe< at >googlegroups.com For more options, visit this group at http://groups.google.com/group/metakit?hl=en -~----------~----~----~----~------~----~------~--~--- tallguy 2008-02-18T21:43:07 http://comments.gmane.org/gmane.comp.db.metakit/2330 Hi, I was looking for a C# binding for Metakit. I found some 2 year old discussions about someone working on a swig interface for Metakit. But I found nothing after that. Does anyone know if there are swig interface files or C# bindings made by anyone ? Thanks, - dBera --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the "metakit" group. To post to this group, send email to metakit< at >googlegroups.com To unsubscribe from this group, send email to metakit-unsubscribe< at >googlegroups.com For more options, visit this group at http://groups.google.com/group/metakit?hl=en -~----------~----~----~----~------~----~------~--~--- dBera 2008-01-21T02:51:09 http://comments.gmane.org/gmane.comp.db.metakit/2329 Hello, I have a simple program that freezes at delete : c4_Storage *storage=NULL; const char*path="C:\\zdrop\\SAV\\ActiveX55\\sample_vb2005\\sample_vb\\bin\\Debug\\cd\\data.winpi"; storage=new c4_Storage(path,false); if (storage!=NULL) { delete storage; storage=NULL; } The file data.winpi has some views with about 100 000 records, but nothing really huge. It has been created with a version 2.4.9.2 probably. Debugging into metakit I found that in c4_FormatV::c4_FormatV, the loop is really big (_subSeqs.GetSize()=109860), this seems strange since I did not try to access the view at all. In release there is no problem (except when launching release program from visual studio with F5) Because of this behaviour, I cannot close my application correctly in debug. Is there any workaround ? Florent Lejeune 2007-12-04T09:53:52 http://comments.gmane.org/gmane.comp.db.metakit/2323 Hello all I've used Metakit for a while, and recently I had some issues with file names containing accent characters, like á or é. It only occurs in Windows XP. In Linux all works ok. But in Windows, when the file name had latin accent characters, Metakit suppress them and thus it tried to open a non existing file. I debug into Metakit source code and I found that the character missing happened in this line: MultiByteToWideChar(CP_UTF8, 0, fname_, - 1, wName, MAX_PATH); I'm not an expert in Win32 API, but after some googling I decided to change the CP_UTF8 parameter for CP_ACP. And then all began to work ok as in Linux. The new version of the previous line now looks like that: MultiByteToWideChar(CP_ACP, 0, fname_, - 1, wName, MAX_PATH); I'm not sure if it make sense to change the Metakit sources that way, but in any case I want to share this issue and maybe get some feedback about the patch I applied. Greetings, German --~--~---------~--~----~------------~-------~--~----~ You received this mess Tecnonucleo 2007-11-10T12:34:41 http://comments.gmane.org/gmane.comp.db.metakit/2320 just want to throw this idea out and see it in appeal to anyone. I would work on it myself except for the fact that my wrists have given out (yet again) and writing code with speech recognition isn't the most efficient method. I have been working on a project where I am using Pyro (Python remote objects) as a way of providing network access to a variety of operations on top of database services. I have been struggling with a variety of database techniques and I keep coming back to metakit as a solution that just feels right in terms of level of effort etc. The main problem is that Python remote object servers are multithreaded. They are either threaded on an object basis or connection basis. Everything I've read so far says that metakit is maybe yes, maybe no, happy with threads in the Python environment. My wish: update/validate metakit to work with threads in general and Pyro servers specifically. I'm not asking for a lot. Metakit access could be single threaded which still allows for s Eric S. Johansson 2007-09-28T17:58:36 http://comments.gmane.org/gmane.comp.db.metakit/2317 Hi I compiled metakit 2,4,7,9 like this : in builds directory : export CXXFLAGS="-arch i386 -arch ppc" ../unix/configure --disable-shared make make test This seems to work, but when executing on a PowerPC mac, it fails : n14 - Insert in non-mapped position Failed: A(fp) I tried removing -O3, but no change. I tried to compile with only -arch ppc, but it is the same... Any help would be appreciated. I use i686-apple-darwin8-g++-4.0.1 Thanks Riccardo Cohen 2007-09-04T16:20:37 http://comments.gmane.org/gmane.comp.db.metakit/2313 If I remember correctly, metakit is multi-reader single writer right? since I need multi-writer, guess I'm best solving that with embedding metakit in a server using internal access locks? does metakit work in a python multi threaded environment either as multi thread access or a single thread fed by multiple request threads/ thanks for any feedback --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the "metakit" group. To post to this group, send email to metakit< at >googlegroups.com To unsubscribe from this group, send email to metakit-unsubscribe< at >googlegroups.com For more options, visit this group at http://groups.google.com/group/metakit?hl=en -~----------~----~----~----~------~----~------~--~--- abused by speech recognition 2007-08-08T19:34:17 http://comments.gmane.org/gmane.comp.db.metakit/2310 Hi, I worked out how to do nested views (from trawling through list archives, it isn't mentioned in the python documentation) - this is great for emulating a simple SQL join. But how do you do two tables that relate to each other? For example, imagine one table called 'Director' which has the columns: - name (string) - age (int) - companies (related join to Company) and another table called 'Company', which has the columns: - name (string) - directors (related join to Person) The situation is that each person, represented by a row in Director, could be a director of more than one company, and each company would often have two or more directors. I'm familiar with SQLObject, where this can be very easily accomplished with 'RelatedJoin' column types. But is there a way to do this in Metakit? For example, given a person, look up the list of companies of which s/he is a director, and for a company, look up the list of directors? The obvious way would be to have flat tables for Person and Director, a davidm 2007-06-26T03:40:56 http://comments.gmane.org/gmane.comp.db.metakit/2309 I've just checked in a change to unix/Makefile.in which tries to address this bug tracker issue: http://www.equi4.com/fff/152 Am not sure at all this is the right way to do things - I added $ (LDFLAGS) in a few places, but notice that $(SHLIB_FLAGS) still isn't being used at all in the makefile. Frankly: I'm a bit lost between what the various LDFLAGS, SHLIB_FLAGS, and LINK_SPECIAL_FLAGS values are supposed to be doing. Why isn't there simply one flag for static linkage and one for dynamic linkage - or is that what this is and I just missing the point? Anyway, please test with cygwin if you have access to that. There are more issues with the Metakit build system, which is a bit odd given that this is "merely" a simple C++ distribution with no external dependencies other than Python and Tcl in the case of the Mk4py and Mk4tcl extensions. As I see it, the only requirements here are to be able to build 6 variants of this code: C++ / Python / Tcl, in static and dynamic library varia Jean-Claude Wippler 2007-06-24T15:05:51 http://comments.gmane.org/gmane.comp.db.metakit/2306 I'm trying to compile metakit on a windows system, and using the provided MSVC6 solution from the 2.4.9.6 distro I get the following error: ..\tcl\mk4tcl.h(12): fatal error C1083: Cannot open include file: 'tcl.h': No such file or directory I tried to open the MSVC6 solution from the 2.4.9.7 and every project in the solution caused the error: Cannot load the project due to a corrupt project file. If any has any advice I'd appreciate it, but I thought you should know regardless in case I'm not the only one with these errors. Thanks, John --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the "metakit" group. To post to this group, send email to metakit< at >googlegroups.com To unsubscribe from this group, send email to metakit-unsubscribe< at >googlegroups.com For more options, visit this group at http://groups.google.com/group/metakit?hl=en -~----------~----~----~----~------~----~------~--~--- John 2007-06-22T17:33:07 http://comments.gmane.org/gmane.comp.db.metakit/2305 The Metakit CVS repository has been migrated to Subversion. The latest source code can now be obtained as follows: svn co svn://svn.equi4.com/metakit/trunk metakit Snapshots of previous releases are in .../metakit/tags/... A tar file is available from: http://www.equi4.com/pub/mk/metakit-2.4.9.7.tar.gz In addition, an new release was made to fix bugs in Mk4tcl. This update only affects Metakit with Tcl in threaded mode. Below is the corresponding section of the change log. -jcw 2007-06-16 ############################################ MK 2.4.9.7 If you're using Tcl in threaded mode, please upgrade - see below. 2007-06-16 Fix threading problems in Mk4tcl The Mk4tcl binding had two serious bugs, causing potential crashes and database corruption when used in multi-threaded mode: 1) The Makefile did not set -DTCL_THREADS when configured with the "--enable-threads" flag, only -Dq4_MULTI, which is the C++ level threading support of Metakit. So all builds Jean-Claude Wippler 2007-06-16T08:54:31 http://comments.gmane.org/gmane.comp.db.metakit/2304 FYI, the equi4 site will be off-line for a day or so due to a server upgrade. -jcw --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the "metakit" group. To post to this group, send email to metakit< at >googlegroups.com To unsubscribe from this group, send email to metakit-unsubscribe< at >googlegroups.com For more options, visit this group at http://groups.google.com/group/metakit?hl=en -~----------~----~----~----~------~----~------~--~--- Jean-Claude Wippler 2007-06-06T23:37:11 http://comments.gmane.org/gmane.comp.db.metakit/2302 Over at http://wiki.tcl.tk/18019 is some code that colin was trying to use to fix some corrupted unicode in a metakit database. It seems, from this page, that he believes that the tcl/metakit code he displays is responsible for corrupting the code. Any experts on metakit and unicode have a moment to look at his code and provide any tips? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the "metakit" group. To post to this group, send email to metakit< at >googlegroups.com To unsubscribe from this group, send email to metakit-unsubscribe< at >googlegroups.com For more options, visit this group at http://groups.google.com/group/metakit?hl=en -~----------~----~----~----~------~----~------~--~--- lvirden 2007-05-09T11:50:00 http://comments.gmane.org/gmane.comp.db.metakit/2299 Hi, when the following test is interrupted while committing, the next execution shows that data is lost while datafile has grown/kept its size. I am currently using 2.4.9.6 on gentoo linux. As I am quite new to metakit, I am wondering if I've done something wrong... Any comment would be really appreciated. Best regards. Sylvain. void test() { c4_Storage db("TEST", true); c4_View vw = db.GetAs("tab[val:I]"); std::cout << vw.GetSize() << " " << boost::filesystem::file_size("./ TEST") << std::endl; c4_Row r; c4_IntProp VAL("val"); for (int i=0; i<1000000; i++) { VAL(r) = i; vw.Add(r); } std::cout << "About to commit" << std::endl; db.Commit(); std::cout << "Commit done" << std::endl; } --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the "metakit" group. To post to this group, send email to metakit< at >googlegroups.com To unsubscribe from this group, send email to metakit-unsubscribe< at >googlegroups.com For more options, visit this group at h sylvain 2007-04-24T14:54:45 http://comments.gmane.org/gmane.comp.db.metakit/2298 Hello Has anyone compiled metakit with Visual Studio 8 ? Microsoft claims to have done a lot to make their compiler conform better with the standard, and from what I have seen, this seems to be justified. Unfortunately, I had a small problem compiling metakit. I invested a little time to compile metakit under VC8 by making the following small changes in std.h: void InsertAt(int nIndex, const T& newElement, int nCount =1) { //_vector.insert(&_vector[nIndex], nCount, newElement); _vector.insert(_vector.begin() + nIndex, nCount, newElement); //modified for VC8 } void RemoveAt(int nIndex, int nCount =1) { //_vector.erase(&_vector[nIndex], &_vector[nIndex+nCount]); _vector.erase(_vector.begin() + nIndex, _vector.begin() + (nIndex+nCount));//modified for VC8 } After changing this the software compiles, but the regression tests won't run clean. There are quite a few fails, and eventually there is a terminal exception. Actually t peri 2007-04-22T21:20:31 http://comments.gmane.org/gmane.comp.db.metakit/2297 The current CVS repository is going to be closed shortly. Just to make sure that the latest source code remains available at all times, I've uploaded a copy to this mailing list: http://metakit.googlegroups.com/web/metakit-2.4.9.6.tar.gz Until there is a new repository, all further source changes will be posted on this list and on the web at http://groups.google.com/group/ metakit -jcw --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "metakit" group. To post to this group, send email to metakit< at >googlegroups.com To unsubscribe from this group, send email to metakit-unsubscribe< at >googlegroups.com For more options, visit this group at http://groups.google.com/group/metakit?hl=en -~----------~----~----~----~------~----~------~--~--- Jean-Claude Wippler 2007-03-22T11:38:35 http://comments.gmane.org/gmane.comp.db.metakit/2296 Lars Magne Ingebrigtsen of Gmane has kindly updated their setup so that posts on this list will continue to be available there (it has web, news, and rss interfaces), see http://dir.gmane.org/gmane.comp.db.metakit Gmane also provides a posting interface for this list. For those who don't want to drink the Google kool-aid as someone put it :) -jcw --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "metakit" group. To post to this group, send email to metakit< at >googlegroups.com To unsubscribe from this group, send email to metakit-unsubscribe< at >googlegroups.com For more options, visit this group at http://groups.google.com/group/metakit?hl=en -~----------~----~----~----~------~----~------~--~--- Jean-Claude Wippler 2007-03-20T23:01:12 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.comp.db.metakit