July 2016 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Spec vs Brick vs Glamour vs Morphic vs WTF?

by Brad Selfridge

Stephan, I watched your video. Very cool. I'm really interested in you code generation process. What I'm working on will also require generating Smalltalk classes and methods from a Spec GUI. I do not want to auto-generate a GUI, but non-GUI classes only. It would be nice not to have to reinvent the wheel again. If that's possible. I am still working on Pharo 4.0. Are there instructions on how to import your code? Or, is it not available at this time? Thanks, ----- Brad Selfridge -- View this message in context: http://forum.world.st/Spec-vs-Brick-vs-Glamour-vs-Morphic-vs-WTF-tp4905178p… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

July 8, 2016

Re: [Pharo-users] Database band reports...

by stepharo

Hi patrick What is a band report? Did you check Artefact because you can generate pdf with Artefact. Stef > Hi, > > My previous message stayed without responses, so I published it agin... I'm > looking for a database band report component. The goal is to build quickly a > PDF report from SQL requests. An exemple is Lazreport, this is a tutorial > <http://wiki.lazarus.freepascal.org/LazReport_Tutorial> . > > > > -- > View this message in context: http://forum.world.st/Database-band-reports-tp4905523.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

July 8, 2016

Re: [Pharo-users] How do I debug: "There was an error while trying to install GitFileTree. Installation was cancelled." from Catalog Browser

by stepharo

the problem is that for the shortcut we could to a spy in the menu. For other actions were we do not have double ways to access them this is difficult to explain to the user how to do something without being far too much boring for the one knowing. Stef Le 7/7/16 Ã 01:58, Ben Coman a Ã©crit : > On Thu, Jul 7, 2016 at 2:33 AM, Dale Henrichs > <dale.henrichs(a)gemtalksystems.com> wrote: >> >> On 07/06/2016 06:37 AM, Cyril Ferlicot Delbecque wrote: >>> >>> On 06/07/2016 15:28, Dale Henrichs wrote: >>>> Alistair, >>>> >>>> Well thank you very much ... Those two menu items are very well hidden:) >>>> Until you prompted me to look closely I >>>> never even noticed that little icon... > Sometimes I think.... similar to how shortcut keys are notified the > first few times a tool is opened, you could get a red outline quickly > cycle through all the buttons when a tool is first opened to avoid > this sort of domestic blindness - but I'm not sure if it would be too > distracting/annoying. > > cheers -ben > > >>>> Is there a reason that those two menu items are not on the stack pane >>>> menu? >>> Hi, >>> >>> I already opened an issue some month ago about it. As you, I think it >>> should be in the stack pane context menu. >>> >>> https://pharo.fogbugz.com/f/cases/17387/Missing-copy-stack-in-GTDebugger >>> >> Very Good ... at least now I know how to tell my users how to copy a stack >> trace, because they don't have a clue how to do it either :) >> >> Dale >> >

July 8, 2016

Re: [Pharo-users] [UFFI] Using a nested structure

by Esteban Lorenzano

how do you declare this? > On 08 Jul 2016, at 10:01, Merwan Ouddane <merwanouddane(a)gmail.com> wrote: > > I spoke too fast ^^' > > struct Test { > void * ptr; > insigned long i; > insigned long j; > } > > Real size is 12, UFFI counts 24 > > Merwan > > > Le 7 juil. 2016 10:02, "Merwan Ouddane" <merwanouddane(a)gmail.com <mailto:merwanouddane@gmail.com>> a Ã©crit : > Now it is working, thank you :) > > On Thu, Jul 7, 2016 at 8:42 AM, Esteban Lorenzano <estebanlm(a)gmail.com <mailto:estebanlm@gmail.com>> wrote: > Hi, > > > On 07 Jul 2016, at 01:54, Ben Coman <btc(a)openInWorld.com> wrote: > > > > On Thu, Jul 7, 2016 at 12:58 AM, Merwan Ouddane <merwanouddane(a)gmail.com <mailto:merwanouddane@gmail.com>> wrote: > >> PS: for the first example, the alignment is not respected, the vec3 > >> structure is starting at 9 but uffi is fetching it at 5 > > > > Hi Esteban, > > > > Is it possible to get a feature or a recipe to output the sizeof or > > offset of fields in types as understood by the Image, and the same > > from a C side - that could be used as the standard first step in > > troubleshooting these kinds of issues ? > > FFIExternalType class>>sizeOf: ? > > but that does not works for complex type sizes (like FFIExternalArray). > > I donât know what the problem is here, because in my test (attached) it seems to be working fine. > maybe problem is on how the Vec3 array is created, it should be something like this: > > Vec3 class>>iinitialize > self > type: (FFIExternalType resolveType: 'double') > size: 3 > > (is like that because FFITypeArray is more designed to be used creating anonymous types than concretes, but wellâ¦ ) > > in any case, it seems to be working for me. > > Now, about the useâ¦ > > doing this: > > p := Position new. > p v1 at: 1 put: 42.0. > p v1 at: 1. âwill print 0.0" > > why? because it works making a copy (maybe it should work passing a segment, as nested structs work, but this is how it works now). > > What should work (at doesnât) in this case is this: > > v := Vector3 new. > p := Position new. > v at: 1 put: 42.0. > p v1: v. > p v1 at: 1. âwill print 42.0" > > it does not work because I made a mistake in field generation that I already fixedâ¦ so you will need to update UFFI (and regenerate field accessors) ;) > > alsoâ¦ I will provide a fix to make first case workâ¦ just later because now Iâm going to my french lessons :) > > Esteban > > ps: for future reference, a description of: install this, run that, is a lot easier to understand the problem (is a case of âshow me the code!â) :P > > > > > > > > cheers -ben > > > >> > >> > >> On 06/07/2016 17:55, Merwan Ouddane wrote: > >> > >> Another test: > >> I replaced double by integer, for visibility... > >> typedef struct vec3 { > >> int data[3]; > >> } vec3; > >> > >> add a second vec3 to position: > >> > >> typedef struct position { > >> int i; > >> vec3 vec; > >> vec3 vec2; > >> } position; > >> > >> Now in pharo: > >> Position >> fieldsDesc > >> "self rebuildFieldAccessors" > >> ^ #( > >> int i; > >> Vec3 vec; > >> Vec3 vec2; > >> ) > >> > >> The size returned for each stucture is 16 instead of 12 that because of the > >> "8 byte alignment" > >> > >> Meaning that the "position" structure is corrupted. > >> > >> With this function: > >> > >> > >> extern "C" void DLL_EXPORT fillStruct(position *position) > >> { > >> position -> i = 19; > >> (position -> vec).data[0] = 1; > >> (position -> vec).data[1] = 2; > >> (position -> vec).data[2] = 3; > >> (position -> vec2).data[0] = 1; > >> (position -> vec2).data[1] = 2; > >> (position -> vec2).data[2] = 3; > >> } > >> > >> We will get: > >> position i == 19 > >> position vec at: 1 == 1 > >> position vec2 at: 1 == 2 > >> > >> > >> On Tue, Jul 5, 2016 at 3:12 PM, Ronie Salgado <roniesalg(a)gmail.com <mailto:roniesalg@gmail.com>> wrote: > >>> > >>> I compiled the DLL using Visual Studio 2015 Community Edition. Later I > >>> will check with mingw. > >>> > >>> 2016-07-05 14:58 GMT+02:00 Merwan Ouddane <merwanouddane(a)gmail.com <mailto:merwanouddane@gmail.com>>: > >>>> > >>>> Using codeblocks, mine are: > >>>> > >>>> mingw32-g++.exe -m32 -DBUILD_DLL -c main.cpp -o obj\Release\main.o > >>>> mingw32-g++.exe -shared -Wl,--output-def=bin\Release\libTest.def > >>>> -Wl,--out-implib=bin\Release\libTest.a -Wl,--dll obj\Release\main.o -o > >>>> bin\Release\Test.dll -s -m32 > >>>> > >>>> > >>>> On Tue, Jul 5, 2016 at 2:52 PM, Merwan Ouddane <merwanouddane(a)gmail.com <mailto:merwanouddane@gmail.com>> > >>>> wrote: > >>>>> > >>>>> I am not moving from another plateform :/ > >>>>> > >>>>> I tried it in pharo 6 and I it didn't work either. > >>>>> > >>>>> It could be my dll. What is your compilation line for the dll ? > >>>>> > >>>>> Thanks you, > >>>>> Merwan > >>>>> > >>>>> On Tue, Jul 5, 2016 at 2:14 PM, Ronie Salgado <roniesalg(a)gmail.com <mailto:roniesalg@gmail.com>> > >>>>> wrote: > >>>>>> > >>>>>> Hi Merwan, > >>>>>> > >>>>>> I tested this on Pharo 6 and it is working in Windows. However, in 32 > >>>>>> bits Window doubles have an 8 byte alignment, unlike Linux where they have a > >>>>>> 4 byte alignment. > >>>>>> > >>>>>> Can you try doing the following before performing the ffi call in > >>>>>> Windows, if you are moving an image from Linux or OS X: > >>>>>> > >>>>>> Vec3 rebuildFieldAccessors. > >>>>>> Position rebuildFieldAccessors. > >>>>>> > >>>>>> Best regards, > >>>>>> Ronie > >>>>>> > >>>>>> 2016-07-05 11:11 GMT+02:00 Merwan Ouddane <merwanouddane(a)gmail.com <mailto:merwanouddane@gmail.com>>: > >>>>>>> > >>>>>>> Hi, > >>>>>>> > >>>>>>> I have an issue whith nested structures. > >>>>>>> > >>>>>>> I made some "dummy" structures in c: > >>>>>>> > >>>>>>> > >>>>>>> typedef struct vec3 { > >>>>>>> double data[3]; > >>>>>>> } vec3; > >>>>>>> > >>>>>>> typedef struct position { > >>>>>>> int i; > >>>>>>> vec3 vec; > >>>>>>> } position; > >>>>>>> > >>>>>>> And a "dummy" function to fill it: > >>>>>>> void fillStruct(position *position) > >>>>>>> { > >>>>>>> position -> i = 19; > >>>>>>> (position -> vec).data[0] = 1; > >>>>>>> (position -> vec).data[1] = 2; > >>>>>>> (position -> vec).data[2] = 3; > >>>>>>> } > >>>>>>> > >>>>>>> But I can't make the nested structure work. > >>>>>>> The "i" is correctly set to 19 but I have values that doesn't make any > >>>>>>> sense in the vec3 structure. > >>>>>>> > >>>>>>> In Pharo > >>>>>>> I declared the Double3 type for the array inside Vec3: > >>>>>>> Double3 := FFITypeArray ofType: 'double' size: 3 > >>>>>>> > >>>>>>> Vec3>>fieldsDesc > >>>>>>> ^ #( > >>>>>>> Double3 v; > >>>>>>> ) > >>>>>>> > >>>>>>> And the position: > >>>>>>> Position>>fieldsDesc > >>>>>>> ^ #( > >>>>>>> int i; > >>>>>>> Vec3 vec; > >>>>>>> ) > >>>>>>> > >>>>>>> The ffi call: > >>>>>>> ^ self ffiCall: #(void fillStruct(Position *position)) module: > >>>>>>> 'Test.dll' > >>>>>>> > >>>>>>> Sorry for the long / messy mail :p > >>>>>>> > >>>>>>> Any clues ? > >>>>>>> > >>>>>>> Cheers, > >>>>>>> Merwan > >>>>>> > >>>>>> > >>>>> > >>>> > >>> > >> > >> > > > > >

July 8, 2016

Re: [Pharo-users] [UFFI] Using a nested structure

by Merwan Ouddane

I spoke too fast ^^' struct Test { void * ptr; insigned long i; insigned long j; } Real size is 12, UFFI counts 24 Merwan Le 7 juil. 2016 10:02, "Merwan Ouddane" <merwanouddane(a)gmail.com> a Ã©crit : > Now it is working, thank you :) > > On Thu, Jul 7, 2016 at 8:42 AM, Esteban Lorenzano <estebanlm(a)gmail.com> > wrote: > >> Hi, >> >> > On 07 Jul 2016, at 01:54, Ben Coman <btc(a)openInWorld.com> wrote: >> > >> > On Thu, Jul 7, 2016 at 12:58 AM, Merwan Ouddane < >> merwanouddane(a)gmail.com> wrote: >> >> PS: for the first example, the alignment is not respected, the vec3 >> >> structure is starting at 9 but uffi is fetching it at 5 >> > >> > Hi Esteban, >> > >> > Is it possible to get a feature or a recipe to output the sizeof or >> > offset of fields in types as understood by the Image, and the same >> > from a C side - that could be used as the standard first step in >> > troubleshooting these kinds of issues ? >> >> FFIExternalType class>>sizeOf: ? >> >> but that does not works for complex type sizes (like FFIExternalArray). >> >> I donât know what the problem is here, because in my test (attached) it >> seems to be working fine. >> maybe problem is on how the Vec3 array is created, it should be something >> like this: >> >> Vec3 class>>iinitialize >> self >> type: (FFIExternalType resolveType: 'double') >> size: 3 >> >> (is like that because FFITypeArray is more designed to be used creating >> anonymous types than concretes, but wellâ¦ ) >> >> in any case, it seems to be working for me. >> >> Now, about the useâ¦ >> >> doing this: >> >> p := Position new. >> p v1 at: 1 put: 42.0. >> p v1 at: 1. âwill print 0.0" >> >> why? because it works making a copy (maybe it should work passing a >> segment, as nested structs work, but this is how it works now). >> >> What should work (at doesnât) in this case is this: >> >> v := Vector3 new. >> p := Position new. >> v at: 1 put: 42.0. >> p v1: v. >> p v1 at: 1. âwill print 42.0" >> >> it does not work because I made a mistake in field generation that I >> already fixedâ¦ so you will need to update UFFI (and regenerate field >> accessors) ;) >> >> alsoâ¦ I will provide a fix to make first case workâ¦ just later because >> now Iâm going to my french lessons :) >> >> Esteban >> >> ps: for future reference, a description of: install this, run that, is a >> lot easier to understand the problem (is a case of âshow me the code!â) :P >> >> >> >> >> > >> > cheers -ben >> > >> >> >> >> >> >> On 06/07/2016 17:55, Merwan Ouddane wrote: >> >> >> >> Another test: >> >> I replaced double by integer, for visibility... >> >> typedef struct vec3 { >> >> int data[3]; >> >> } vec3; >> >> >> >> add a second vec3 to position: >> >> >> >> typedef struct position { >> >> int i; >> >> vec3 vec; >> >> vec3 vec2; >> >> } position; >> >> >> >> Now in pharo: >> >> Position >> fieldsDesc >> >> "self rebuildFieldAccessors" >> >> ^ #( >> >> int i; >> >> Vec3 vec; >> >> Vec3 vec2; >> >> ) >> >> >> >> The size returned for each stucture is 16 instead of 12 that because >> of the >> >> "8 byte alignment" >> >> >> >> Meaning that the "position" structure is corrupted. >> >> >> >> With this function: >> >> >> >> >> >> extern "C" void DLL_EXPORT fillStruct(position *position) >> >> { >> >> position -> i = 19; >> >> (position -> vec).data[0] = 1; >> >> (position -> vec).data[1] = 2; >> >> (position -> vec).data[2] = 3; >> >> (position -> vec2).data[0] = 1; >> >> (position -> vec2).data[1] = 2; >> >> (position -> vec2).data[2] = 3; >> >> } >> >> >> >> We will get: >> >> position i == 19 >> >> position vec at: 1 == 1 >> >> position vec2 at: 1 == 2 >> >> >> >> >> >> On Tue, Jul 5, 2016 at 3:12 PM, Ronie Salgado <roniesalg(a)gmail.com> >> wrote: >> >>> >> >>> I compiled the DLL using Visual Studio 2015 Community Edition. Later I >> >>> will check with mingw. >> >>> >> >>> 2016-07-05 14:58 GMT+02:00 Merwan Ouddane <merwanouddane(a)gmail.com>: >> >>>> >> >>>> Using codeblocks, mine are: >> >>>> >> >>>> mingw32-g++.exe -m32 -DBUILD_DLL -c main.cpp -o obj\Release\main.o >> >>>> mingw32-g++.exe -shared -Wl,--output-def=bin\Release\libTest.def >> >>>> -Wl,--out-implib=bin\Release\libTest.a -Wl,--dll >> obj\Release\main.o -o >> >>>> bin\Release\Test.dll -s -m32 >> >>>> >> >>>> >> >>>> On Tue, Jul 5, 2016 at 2:52 PM, Merwan Ouddane < >> merwanouddane(a)gmail.com> >> >>>> wrote: >> >>>>> >> >>>>> I am not moving from another plateform :/ >> >>>>> >> >>>>> I tried it in pharo 6 and I it didn't work either. >> >>>>> >> >>>>> It could be my dll. What is your compilation line for the dll ? >> >>>>> >> >>>>> Thanks you, >> >>>>> Merwan >> >>>>> >> >>>>> On Tue, Jul 5, 2016 at 2:14 PM, Ronie Salgado <roniesalg(a)gmail.com> >> >>>>> wrote: >> >>>>>> >> >>>>>> Hi Merwan, >> >>>>>> >> >>>>>> I tested this on Pharo 6 and it is working in Windows. However, in >> 32 >> >>>>>> bits Window doubles have an 8 byte alignment, unlike Linux where >> they have a >> >>>>>> 4 byte alignment. >> >>>>>> >> >>>>>> Can you try doing the following before performing the ffi call in >> >>>>>> Windows, if you are moving an image from Linux or OS X: >> >>>>>> >> >>>>>> Vec3 rebuildFieldAccessors. >> >>>>>> Position rebuildFieldAccessors. >> >>>>>> >> >>>>>> Best regards, >> >>>>>> Ronie >> >>>>>> >> >>>>>> 2016-07-05 11:11 GMT+02:00 Merwan Ouddane <merwanouddane(a)gmail.com >> >: >> >>>>>>> >> >>>>>>> Hi, >> >>>>>>> >> >>>>>>> I have an issue whith nested structures. >> >>>>>>> >> >>>>>>> I made some "dummy" structures in c: >> >>>>>>> >> >>>>>>> >> >>>>>>> typedef struct vec3 { >> >>>>>>> double data[3]; >> >>>>>>> } vec3; >> >>>>>>> >> >>>>>>> typedef struct position { >> >>>>>>> int i; >> >>>>>>> vec3 vec; >> >>>>>>> } position; >> >>>>>>> >> >>>>>>> And a "dummy" function to fill it: >> >>>>>>> void fillStruct(position *position) >> >>>>>>> { >> >>>>>>> position -> i = 19; >> >>>>>>> (position -> vec).data[0] = 1; >> >>>>>>> (position -> vec).data[1] = 2; >> >>>>>>> (position -> vec).data[2] = 3; >> >>>>>>> } >> >>>>>>> >> >>>>>>> But I can't make the nested structure work. >> >>>>>>> The "i" is correctly set to 19 but I have values that doesn't >> make any >> >>>>>>> sense in the vec3 structure. >> >>>>>>> >> >>>>>>> In Pharo >> >>>>>>> I declared the Double3 type for the array inside Vec3: >> >>>>>>> Double3 := FFITypeArray ofType: 'double' size: 3 >> >>>>>>> >> >>>>>>> Vec3>>fieldsDesc >> >>>>>>> ^ #( >> >>>>>>> Double3 v; >> >>>>>>> ) >> >>>>>>> >> >>>>>>> And the position: >> >>>>>>> Position>>fieldsDesc >> >>>>>>> ^ #( >> >>>>>>> int i; >> >>>>>>> Vec3 vec; >> >>>>>>> ) >> >>>>>>> >> >>>>>>> The ffi call: >> >>>>>>> ^ self ffiCall: #(void fillStruct(Position *position)) module: >> >>>>>>> 'Test.dll' >> >>>>>>> >> >>>>>>> Sorry for the long / messy mail :p >> >>>>>>> >> >>>>>>> Any clues ? >> >>>>>>> >> >>>>>>> Cheers, >> >>>>>>> Merwan >> >>>>>> >> >>>>>> >> >>>>> >> >>>> >> >>> >> >> >> >> >> > >> >> >> >

July 8, 2016

Database band reports...

by patrick71

Hi, My previous message stayed without responses, so I published it agin... I'm looking for a database band report component. The goal is to build quickly a PDF report from SQL requests. An exemple is Lazreport, this is a tutorial <http://wiki.lazarus.freepascal.org/LazReport_Tutorial> . -- View this message in context: http://forum.world.st/Database-band-reports-tp4905523.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

July 8, 2016

Re: [Pharo-users] Spec vs Brick vs Glamour vs Morphic vs WTF?

by Ben Coman

On Thu, Jul 7, 2016 at 5:41 PM, stephan <stephan(a)stack.nl> wrote: > Ben wrote: >> >> First time I've heard of it. Could you describe it? > > > Creating simple CRUD tables and forms with text fields and to-1 references > to other > tables. In Pharo 6 doesn't need the SelectEntity widget, as that is already > loaded. > > http://forum.world.st/ANN-SpecGenerator-easy-CRUD-applications-with-Spec-td… cool. thanks for the link. cheers -ben

July 7, 2016

Re: [Pharo-users] SQLite + Pharo

by Esteban A. Maringolo

2016-07-06 6:24 GMT-03:00 Hilaire <hilaire(a)drgeo.eu>: > Thanks Esteban, > > I guess UDBC is for Pharo 5, and for Pharo 4 it is the NB version, right? Right. > I guess both version has the same public interface. There might be a small difference in the API, because it seems more people is using the UDBC version rather the previous one. But nothing significant, because AFAIU the UDBC has more methods, but didn't change the semantics. Regards! Esteban A. Maringolo

July 7, 2016

Re: [Pharo-users] Spec vs Brick vs Glamour vs Morphic vs WTF?

by stephan

Ben wrote: > First time I've heard of it. Could you describe it? Creating simple CRUD tables and forms with text fields and to-1 references to other tables. In Pharo 6 doesn't need the SelectEntity widget, as that is already loaded. http://forum.world.st/ANN-SpecGenerator-easy-CRUD-applications-with-Spec-td… Stephan

July 7, 2016

Re: [Pharo-users] [UFFI] Using a nested structure

by Merwan Ouddane

Now it is working, thank you :) On Thu, Jul 7, 2016 at 8:42 AM, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > Hi, > > > On 07 Jul 2016, at 01:54, Ben Coman <btc(a)openInWorld.com> wrote: > > > > On Thu, Jul 7, 2016 at 12:58 AM, Merwan Ouddane <merwanouddane(a)gmail.com> > wrote: > >> PS: for the first example, the alignment is not respected, the vec3 > >> structure is starting at 9 but uffi is fetching it at 5 > > > > Hi Esteban, > > > > Is it possible to get a feature or a recipe to output the sizeof or > > offset of fields in types as understood by the Image, and the same > > from a C side - that could be used as the standard first step in > > troubleshooting these kinds of issues ? > > FFIExternalType class>>sizeOf: ? > > but that does not works for complex type sizes (like FFIExternalArray). > > I donât know what the problem is here, because in my test (attached) it > seems to be working fine. > maybe problem is on how the Vec3 array is created, it should be something > like this: > > Vec3 class>>iinitialize > self > type: (FFIExternalType resolveType: 'double') > size: 3 > > (is like that because FFITypeArray is more designed to be used creating > anonymous types than concretes, but wellâ¦ ) > > in any case, it seems to be working for me. > > Now, about the useâ¦ > > doing this: > > p := Position new. > p v1 at: 1 put: 42.0. > p v1 at: 1. âwill print 0.0" > > why? because it works making a copy (maybe it should work passing a > segment, as nested structs work, but this is how it works now). > > What should work (at doesnât) in this case is this: > > v := Vector3 new. > p := Position new. > v at: 1 put: 42.0. > p v1: v. > p v1 at: 1. âwill print 42.0" > > it does not work because I made a mistake in field generation that I > already fixedâ¦ so you will need to update UFFI (and regenerate field > accessors) ;) > > alsoâ¦ I will provide a fix to make first case workâ¦ just later because now > Iâm going to my french lessons :) > > Esteban > > ps: for future reference, a description of: install this, run that, is a > lot easier to understand the problem (is a case of âshow me the code!â) :P > > > > > > > > cheers -ben > > > >> > >> > >> On 06/07/2016 17:55, Merwan Ouddane wrote: > >> > >> Another test: > >> I replaced double by integer, for visibility... > >> typedef struct vec3 { > >> int data[3]; > >> } vec3; > >> > >> add a second vec3 to position: > >> > >> typedef struct position { > >> int i; > >> vec3 vec; > >> vec3 vec2; > >> } position; > >> > >> Now in pharo: > >> Position >> fieldsDesc > >> "self rebuildFieldAccessors" > >> ^ #( > >> int i; > >> Vec3 vec; > >> Vec3 vec2; > >> ) > >> > >> The size returned for each stucture is 16 instead of 12 that because of > the > >> "8 byte alignment" > >> > >> Meaning that the "position" structure is corrupted. > >> > >> With this function: > >> > >> > >> extern "C" void DLL_EXPORT fillStruct(position *position) > >> { > >> position -> i = 19; > >> (position -> vec).data[0] = 1; > >> (position -> vec).data[1] = 2; > >> (position -> vec).data[2] = 3; > >> (position -> vec2).data[0] = 1; > >> (position -> vec2).data[1] = 2; > >> (position -> vec2).data[2] = 3; > >> } > >> > >> We will get: > >> position i == 19 > >> position vec at: 1 == 1 > >> position vec2 at: 1 == 2 > >> > >> > >> On Tue, Jul 5, 2016 at 3:12 PM, Ronie Salgado <roniesalg(a)gmail.com> > wrote: > >>> > >>> I compiled the DLL using Visual Studio 2015 Community Edition. Later I > >>> will check with mingw. > >>> > >>> 2016-07-05 14:58 GMT+02:00 Merwan Ouddane <merwanouddane(a)gmail.com>: > >>>> > >>>> Using codeblocks, mine are: > >>>> > >>>> mingw32-g++.exe -m32 -DBUILD_DLL -c main.cpp -o obj\Release\main.o > >>>> mingw32-g++.exe -shared -Wl,--output-def=bin\Release\libTest.def > >>>> -Wl,--out-implib=bin\Release\libTest.a -Wl,--dll obj\Release\main.o > -o > >>>> bin\Release\Test.dll -s -m32 > >>>> > >>>> > >>>> On Tue, Jul 5, 2016 at 2:52 PM, Merwan Ouddane < > merwanouddane(a)gmail.com> > >>>> wrote: > >>>>> > >>>>> I am not moving from another plateform :/ > >>>>> > >>>>> I tried it in pharo 6 and I it didn't work either. > >>>>> > >>>>> It could be my dll. What is your compilation line for the dll ? > >>>>> > >>>>> Thanks you, > >>>>> Merwan > >>>>> > >>>>> On Tue, Jul 5, 2016 at 2:14 PM, Ronie Salgado <roniesalg(a)gmail.com> > >>>>> wrote: > >>>>>> > >>>>>> Hi Merwan, > >>>>>> > >>>>>> I tested this on Pharo 6 and it is working in Windows. However, in > 32 > >>>>>> bits Window doubles have an 8 byte alignment, unlike Linux where > they have a > >>>>>> 4 byte alignment. > >>>>>> > >>>>>> Can you try doing the following before performing the ffi call in > >>>>>> Windows, if you are moving an image from Linux or OS X: > >>>>>> > >>>>>> Vec3 rebuildFieldAccessors. > >>>>>> Position rebuildFieldAccessors. > >>>>>> > >>>>>> Best regards, > >>>>>> Ronie > >>>>>> > >>>>>> 2016-07-05 11:11 GMT+02:00 Merwan Ouddane <merwanouddane(a)gmail.com > >: > >>>>>>> > >>>>>>> Hi, > >>>>>>> > >>>>>>> I have an issue whith nested structures. > >>>>>>> > >>>>>>> I made some "dummy" structures in c: > >>>>>>> > >>>>>>> > >>>>>>> typedef struct vec3 { > >>>>>>> double data[3]; > >>>>>>> } vec3; > >>>>>>> > >>>>>>> typedef struct position { > >>>>>>> int i; > >>>>>>> vec3 vec; > >>>>>>> } position; > >>>>>>> > >>>>>>> And a "dummy" function to fill it: > >>>>>>> void fillStruct(position *position) > >>>>>>> { > >>>>>>> position -> i = 19; > >>>>>>> (position -> vec).data[0] = 1; > >>>>>>> (position -> vec).data[1] = 2; > >>>>>>> (position -> vec).data[2] = 3; > >>>>>>> } > >>>>>>> > >>>>>>> But I can't make the nested structure work. > >>>>>>> The "i" is correctly set to 19 but I have values that doesn't make > any > >>>>>>> sense in the vec3 structure. > >>>>>>> > >>>>>>> In Pharo > >>>>>>> I declared the Double3 type for the array inside Vec3: > >>>>>>> Double3 := FFITypeArray ofType: 'double' size: 3 > >>>>>>> > >>>>>>> Vec3>>fieldsDesc > >>>>>>> ^ #( > >>>>>>> Double3 v; > >>>>>>> ) > >>>>>>> > >>>>>>> And the position: > >>>>>>> Position>>fieldsDesc > >>>>>>> ^ #( > >>>>>>> int i; > >>>>>>> Vec3 vec; > >>>>>>> ) > >>>>>>> > >>>>>>> The ffi call: > >>>>>>> ^ self ffiCall: #(void fillStruct(Position *position)) module: > >>>>>>> 'Test.dll' > >>>>>>> > >>>>>>> Sorry for the long / messy mail :p > >>>>>>> > >>>>>>> Any clues ? > >>>>>>> > >>>>>>> Cheers, > >>>>>>> Merwan > >>>>>> > >>>>>> > >>>>> > >>>> > >>> > >> > >> > > > > >

July 7, 2016