mac address on windows

On 06 May 2015, at 12:10, [hidden email] wrote:

I've loaded your package.

A prerequisite is to load OS-Window to make it work.

why?

in any case, oswindow is already included in pharo4

Esteban

I've got the DLL call working nicely and the nativeboost with the structure freezing.

Now, we should all have a look at:

https://github.com/ronsaldo/bullet-pharo

and

https://github.com/ronsaldo/swig

because it looks like the way to go to wrap libraries...

Ronie, I know you modified swig for generating Pharo code;

Is cloning your swig repo the way to go ?

Phil

On Wed, May 6, 2015 at 10:39 AM, Usman Bhatti <[hidden email]> wrote:

Hi Nicolai,

Here is my package that defines the nativeboost call and associated C structs.

The external C struct is self referencing and hence sometimes I get infinite recursion when trying to change field descriptions. That is the reason why the automatically generated accessors are absent (although I had them in an earlier version).

Attached also the DLL referenced in the code.

On Wed, May 6, 2015 at 9:58 AM, Nicolai Hess <[hidden email]> wrote:

2015-05-06 9:53 GMT+02:00 Usman Bhatti <[hidden email]>:

On Tue, May 5, 2015 at 7:34 PM, [hidden email] <[hidden email]> wrote:

On Tue, May 5, 2015 at 6:28 PM, Usman Bhatti <[hidden email]> wrote:

I succeeded to do it by encapsulating the C routine as a DLL and doing an FFI call from my image (as suggested by Guille).

At least there was a way!

Exactly :)

 

Looks like this is the most controlled|debuggable way:

  - get it working with C code out of Pharo

  - make a bridge that can be used easily with FFI in a dll

  - use that from Pharo with proven FFI

Would NativeBoost work with your dll? Should.

I have read a few resources about Nativeboost but I am still naive to know the difference between FFI and nativeboost. The FFI call I made to invoke the DLL function looked similar to the nativeboost calls.

 

I also tried to perform the nativeboost call by creating my structures in Pharo. The function in Windows that can be used to retrieve mac address in Windows: GetAdaptersInfo that accepts a PIP_ADAPTER_INFO  structure. I subclassed NBExternalStructure to define this struct and the other used by it in the image but my NB call returned with 87 code (Invalid parameter) and it was impossible to debug. However, I would like to make this thing work to understand what went wrong.

Has this something to do with 32|64 bit library complications?

Not exactly. For me, it was more related to the fact that I had to map a complex C struct in Pharo. Here is an excerpt of the definition from MSDN:

typedef struct _IP_ADAPTER_INFO {

  struct _IP_ADAPTER_INFO  *Next;

 ...

 PIP_ADDR_STRING         CurrentIpAddress;

          IP_ADDR_STRING          GatewayList;

...

}

So, I had to define three external structures (all names in capitals) and I did the effort but in the end I got an error code that I could not debug in the image. Hence, I gave up and opted to go in the native environment. But I would like someone knowledgable to have a look at my nativeboost code  because the nativeboost approach is more simple (everything's in the image).

I can have a look.

btw. for what do you need the mac address?

 

usman

 

Phil

With ProcessWrapper, I could not load the classes essential for making the plugin work.

HTH,

Usman

On Mon, May 4, 2015 at 2:54 PM, Ben Coman <[hidden email]> wrote:

As a complete newb to VM building I found this fairly straight forward (on a Mac btw).

https://github.com/pharo-project/pharo-vm

cheers -ben

On Mon, May 4, 2015 at 5:28 PM, Usman Bhatti <[hidden email]> wrote:


On Sun, May 3, 2015 at 4:22 PM, Pierce Ng <[hidden email]> wrote:
On Sat, May 02, 2015 at 03:55:47PM +0200, Usman Bhatti wrote:
> 1/ OSProcess: I tried  (PipeableOSProcess command: 'ipconfig /all') output.

I have used http://www.smalltalkhub.com/#!/~hernan/ProcessWrapper successfully
back when I was on Windows using some now-ancient version of Pharo.

I had initially discarded the idea of using this project because it required a plugin and the information of the plugin was outdated on squeaksource. However, having evaluated superficially the complexity of doing it with nativeboost (because too many external c struct involved in the call), I would like to see if I am better off using this wrapper.

I loaded it with:

Gofer it

  url: 'http://www.smalltalkhub.com/mc/hernan/ProcessWrapper/main';

  package: 'ProcessWrapper-Core';

  package: 'ProcessWrapper-Plugin';

  package: 'ProcessWrapper-Tests';        

  load.

But the plugins wont load because it requires the class SmartSyntaxInterpreterPlugin and apparently this file is a part of the VMMaker. Is there any recent config for VMMaker in Pharo because this one looks outdated:

http://pharo.gemtalksystems.com/book/Virtual-Machine/Building/VMMakerTool/

 

Pierce

 

On Wed, May 6, 2015 at 12:29 PM, Nicolai Hess <[hidden email]> wrote:

2015-05-06 12:10 GMT+02:00 [hidden email] <[hidden email]>:

I've loaded your package.

A prerequisite is to load OS-Window to make it work.

I've got the DLL call working nicely and the nativeboost with the structure freezing.

This is because you have a recursive datastructure description, but acutually the IP_ADAPTER_INFO structure is not recursive:

PIP_ADAPTER_INFO class >>fieldsDex
^ #(
 PIP_ADAPTER_INFO  nextVariable;
  DWORD                   ComboIndex;
  CHAR                    AdapterName;
  CHAR                    Description;
....)

The "nextVariable" should be a pointer to the structure.

from MSDN:

 struct _IP_ADAPTER_INFO {
  struct _IP_ADAPTER_INFO  *Next;   "<- pointer"
  DWORD                   ComboIndex;
  char                    AdapterName[MAX_ADAPTER_NAME_LENGTH + 4];
  char                    Description[MAX_ADAPTER_DESCRIPTION_LENGTH + 4];
  UINT                    AddressLength;

....

 

So, what's to put in there then?

I can use FFI / NB for basic cases but never ventured into those structure.

I'd like to :-)

Phil

I

 

Now, we should all have a look at:

https://github.com/ronsaldo/bullet-pharo

and

https://github.com/ronsaldo/swig

because it looks like the way to go to wrap libraries...

Ronie, I know you modified swig for generating Pharo code;

Is cloning your swig repo the way to go ?

Phil

On Wed, May 6, 2015 at 10:39 AM, Usman Bhatti <[hidden email]> wrote:

Hi Nicolai,

Here is my package that defines the nativeboost call and associated C structs.

The external C struct is self referencing and hence sometimes I get infinite recursion when trying to change field descriptions. That is the reason why the automatically generated accessors are absent (although I had them in an earlier version).

Attached also the DLL referenced in the code.

On Wed, May 6, 2015 at 9:58 AM, Nicolai Hess <[hidden email]> wrote:

2015-05-06 9:53 GMT+02:00 Usman Bhatti <[hidden email]>:

On Tue, May 5, 2015 at 7:34 PM, [hidden email] <[hidden email]> wrote:

On Tue, May 5, 2015 at 6:28 PM, Usman Bhatti <[hidden email]> wrote:

I succeeded to do it by encapsulating the C routine as a DLL and doing an FFI call from my image (as suggested by Guille).

At least there was a way!

Exactly :)

 

Looks like this is the most controlled|debuggable way:

  - get it working with C code out of Pharo

  - make a bridge that can be used easily with FFI in a dll

  - use that from Pharo with proven FFI

Would NativeBoost work with your dll? Should.

I have read a few resources about Nativeboost but I am still naive to know the difference between FFI and nativeboost. The FFI call I made to invoke the DLL function looked similar to the nativeboost calls.

 

I also tried to perform the nativeboost call by creating my structures in Pharo. The function in Windows that can be used to retrieve mac address in Windows: GetAdaptersInfo that accepts a PIP_ADAPTER_INFO  structure. I subclassed NBExternalStructure to define this struct and the other used by it in the image but my NB call returned with 87 code (Invalid parameter) and it was impossible to debug. However, I would like to make this thing work to understand what went wrong.

Has this something to do with 32|64 bit library complications?

Not exactly. For me, it was more related to the fact that I had to map a complex C struct in Pharo. Here is an excerpt of the definition from MSDN:

typedef struct _IP_ADAPTER_INFO {

  struct _IP_ADAPTER_INFO  *Next;

 ...

 PIP_ADDR_STRING         CurrentIpAddress;

          IP_ADDR_STRING          GatewayList;

...

}

So, I had to define three external structures (all names in capitals) and I did the effort but in the end I got an error code that I could not debug in the image. Hence, I gave up and opted to go in the native environment. But I would like someone knowledgable to have a look at my nativeboost code  because the nativeboost approach is more simple (everything's in the image).

I can have a look.

btw. for what do you need the mac address?

 

usman

 

Phil

With ProcessWrapper, I could not load the classes essential for making the plugin work.

HTH,

Usman

On Mon, May 4, 2015 at 2:54 PM, Ben Coman <[hidden email]> wrote:

As a complete newb to VM building I found this fairly straight forward (on a Mac btw).

https://github.com/pharo-project/pharo-vm

cheers -ben

On Mon, May 4, 2015 at 5:28 PM, Usman Bhatti <[hidden email]> wrote:

On Sun, May 3, 2015 at 4:22 PM, Pierce Ng <[hidden email]> wrote:

On Sat, May 02, 2015 at 03:55:47PM +0200, Usman Bhatti wrote:
> 1/ OSProcess: I tried  (PipeableOSProcess command: 'ipconfig /all') output.

I have used http://www.smalltalkhub.com/#!/~hernan/ProcessWrapper successfully
back when I was on Windows using some now-ancient version of Pharo.

I had initially discarded the idea of using this project because it required a plugin and the information of the plugin was outdated on squeaksource. However, having evaluated superficially the complexity of doing it with nativeboost (because too many external c struct involved in the call), I would like to see if I am better off using this wrapper.

I loaded it with:

Gofer it

  url: 'http://www.smalltalkhub.com/mc/hernan/ProcessWrapper/main';

  package: 'ProcessWrapper-Core';

  package: 'ProcessWrapper-Plugin';

  package: 'ProcessWrapper-Tests';        

  load.

But the plugins wont load because it requires the class SmartSyntaxInterpreterPlugin and apparently this file is a part of the VMMaker. Is there any recent config for VMMaker in Pharo because this one looks outdated:

http://pharo.gemtalksystems.com/book/Virtual-Machine/Building/VMMakerTool/

 

Pierce

 

 

A few easily fixed Type/pointers to Types mixups, and a slipup where two different classes are confused for the same aside, the real show stopper, if I haven't missed something entirely, is that the struct parser/NB in general does not handle const sized arrays*, which is used in a few of the required structs.

Extending the parser should be relatively straight forward, along the lines of adding

stream peek: #'[' ifTrue: [stream next.

   type := SizedExternalArrayType type: type size: stream next.

   stream next = #']' ifFalse: [self error: 'Missing closing bracket for ', type printString]]

to NBExtenralStructureFields >> #parseFields:... after the name is read.

Coding SizedExternalArrayType is a bit more work though...

Cheers,

Henry


*The end goal would be to be able to generate accessors/read/write for a simple test-struct such as

#fieldsDesc
^#(

      char   ip[MyClassVar +2];
)

On Wed, May 6, 2015 at 5:28 PM, Esteban Lorenzano <[hidden email]> wrote:

On 06 May 2015, at 17:03, Nicolai Hess <[hidden email]> wrote:

2015-05-06 16:40 GMT+02:00 Esteban Lorenzano <[hidden email]>:

On 06 May 2015, at 12:10, [hidden email] wrote:

I've loaded your package.

A prerequisite is to load OS-Window to make it work.

why?

in any case, oswindow is already included in pharo4

OS-Windows (by TorstenBergmann)

not

OSWindow  :)

ahhh. Name clash :)

It is needed for the shared pool WinTypes,

but without OS-Window, he can use NBWinTypes instead.

 

Esteban

I've got the DLL call working nicely and the nativeboost with the structure freezing.

Now, we should all have a look at:

https://github.com/ronsaldo/bullet-pharo

and

https://github.com/ronsaldo/swig

because it looks like the way to go to wrap libraries...

Ronie, I know you modified swig for generating Pharo code;

Is cloning your swig repo the way to go ?

Phil

On Wed, May 6, 2015 at 10:39 AM, Usman Bhatti <[hidden email]> wrote:

Hi Nicolai,

Here is my package that defines the nativeboost call and associated C structs.

The external C struct is self referencing and hence sometimes I get infinite recursion when trying to change field descriptions. That is the reason why the automatically generated accessors are absent (although I had them in an earlier version).

Attached also the DLL referenced in the code.

On Wed, May 6, 2015 at 9:58 AM, Nicolai Hess <[hidden email]> wrote:

2015-05-06 9:53 GMT+02:00 Usman Bhatti <[hidden email]>:

On Tue, May 5, 2015 at 7:34 PM, [hidden email] <[hidden email]> wrote:

On Tue, May 5, 2015 at 6:28 PM, Usman Bhatti <[hidden email]> wrote:

I succeeded to do it by encapsulating the C routine as a DLL and doing an FFI call from my image (as suggested by Guille).

At least there was a way!

Exactly :)

 

Looks like this is the most controlled|debuggable way:

  - get it working with C code out of Pharo

  - make a bridge that can be used easily with FFI in a dll

  - use that from Pharo with proven FFI

Would NativeBoost work with your dll? Should.

I have read a few resources about Nativeboost but I am still naive to know the difference between FFI and nativeboost. The FFI call I made to invoke the DLL function looked similar to the nativeboost calls.

 

I also tried to perform the nativeboost call by creating my structures in Pharo. The function in Windows that can be used to retrieve mac address in Windows: GetAdaptersInfo that accepts a PIP_ADAPTER_INFO  structure. I subclassed NBExternalStructure to define this struct and the other used by it in the image but my NB call returned with 87 code (Invalid parameter) and it was impossible to debug. However, I would like to make this thing work to understand what went wrong.

Has this something to do with 32|64 bit library complications?

Not exactly. For me, it was more related to the fact that I had to map a complex C struct in Pharo. Here is an excerpt of the definition from MSDN:

typedef struct _IP_ADAPTER_INFO {

  struct _IP_ADAPTER_INFO  *Next;

 ...

 PIP_ADDR_STRING         CurrentIpAddress;

          IP_ADDR_STRING          GatewayList;

...

}

So, I had to define three external structures (all names in capitals) and I did the effort but in the end I got an error code that I could not debug in the image. Hence, I gave up and opted to go in the native environment. But I would like someone knowledgable to have a look at my nativeboost code  because the nativeboost approach is more simple (everything's in the image).

I can have a look.

btw. for what do you need the mac address?

 

usman

 

Phil

With ProcessWrapper, I could not load the classes essential for making the plugin work.

HTH,

Usman

On Mon, May 4, 2015 at 2:54 PM, Ben Coman <[hidden email]> wrote:

As a complete newb to VM building I found this fairly straight forward (on a Mac btw).

https://github.com/pharo-project/pharo-vm

cheers -ben

On Mon, May 4, 2015 at 5:28 PM, Usman Bhatti <[hidden email]> wrote:


On Sun, May 3, 2015 at 4:22 PM, Pierce Ng <[hidden email]> wrote:
On Sat, May 02, 2015 at 03:55:47PM +0200, Usman Bhatti wrote:
> 1/ OSProcess: I tried  (PipeableOSProcess command: 'ipconfig /all') output.

I have used http://www.smalltalkhub.com/#!/~hernan/ProcessWrapper successfully
back when I was on Windows using some now-ancient version of Pharo.

I had initially discarded the idea of using this project because it required a plugin and the information of the plugin was outdated on squeaksource. However, having evaluated superficially the complexity of doing it with nativeboost (because too many external c struct involved in the call), I would like to see if I am better off using this wrapper.

I loaded it with:

Gofer it

  url: 'http://www.smalltalkhub.com/mc/hernan/ProcessWrapper/main';

  package: 'ProcessWrapper-Core';

  package: 'ProcessWrapper-Plugin';

  package: 'ProcessWrapper-Tests';        

  load.

But the plugins wont load because it requires the class SmartSyntaxInterpreterPlugin and apparently this file is a part of the VMMaker. Is there any recent config for VMMaker in Pharo because this one looks outdated:

http://pharo.gemtalksystems.com/book/Virtual-Machine/Building/VMMakerTool/

 

Pierce

 

2015-05-06 22:47 GMT+02:00 Henrik Sperre Johansen <[hidden email]>:

A few easily fixed Type/pointers to Types mixups, and a slipup where two different classes are confused for the same aside, the real show stopper, if I haven't missed something entirely, is that the struct parser/NB in general does not handle const sized arrays*, which is used in a few of the required structs.

Extending the parser should be relatively straight forward, along the lines of adding

stream peek: #'[' ifTrue: [stream next.

   type := SizedExternalArrayType type: type size: stream next.

   stream next = #']' ifFalse: [self error: 'Missing closing bracket for ', type printString]]

to NBExtenralStructureFields >> #parseFields:... after the name is read.

Coding SizedExternalArrayType is a bit more work though...

Cheers,

Henry


*The end goal would be to be able to generate accessors/read/write for a simple test-struct such as

#fieldsDesc
^#(

      char   ip[MyClassVar +2];
)

Yes, a parser for this would be great.

I tried it with a little hack

NBExternalStructure subclass: #Char_260 ...

Char_260 class>>#fieldDesc

^ #(char data)

Char_260 class>>instanceSize
^ 260

You need another accessor for accessing the data, otherwise you'll only get the first char. AND I don't know how

the external memory is handle, probably it is never freed :)

Now a complete example (attached code) call it with

GetMacWin32 getMacAddress

 

On Wed, May 6, 2015 at 5:28 PM, Esteban Lorenzano <[hidden email]> wrote:

On 06 May 2015, at 17:03, Nicolai Hess <[hidden email]> wrote:

2015-05-06 16:40 GMT+02:00 Esteban Lorenzano <[hidden email]>:

On 06 May 2015, at 12:10, [hidden email] wrote:

I've loaded your package.

A prerequisite is to load OS-Window to make it work.

why?

in any case, oswindow is already included in pharo4

OS-Windows (by TorstenBergmann)

not

OSWindow  :)

ahhh. Name clash :)

It is needed for the shared pool WinTypes,

but without OS-Window, he can use NBWinTypes instead.

 

Esteban

I've got the DLL call working nicely and the nativeboost with the structure freezing.

Now, we should all have a look at:

https://github.com/ronsaldo/bullet-pharo

and

https://github.com/ronsaldo/swig

because it looks like the way to go to wrap libraries...

Ronie, I know you modified swig for generating Pharo code;

Is cloning your swig repo the way to go ?

Phil

On Wed, May 6, 2015 at 10:39 AM, Usman Bhatti <[hidden email]> wrote:

Hi Nicolai,

Here is my package that defines the nativeboost call and associated C structs.

The external C struct is self referencing and hence sometimes I get infinite recursion when trying to change field descriptions. That is the reason why the automatically generated accessors are absent (although I had them in an earlier version).

Attached also the DLL referenced in the code.

On Wed, May 6, 2015 at 9:58 AM, Nicolai Hess <[hidden email]> wrote:

2015-05-06 9:53 GMT+02:00 Usman Bhatti <[hidden email]>:

On Tue, May 5, 2015 at 7:34 PM, [hidden email] <[hidden email]> wrote:

On Tue, May 5, 2015 at 6:28 PM, Usman Bhatti <[hidden email]> wrote:

I succeeded to do it by encapsulating the C routine as a DLL and doing an FFI call from my image (as suggested by Guille).

At least there was a way!

Exactly :)

 

Looks like this is the most controlled|debuggable way:

  - get it working with C code out of Pharo

  - make a bridge that can be used easily with FFI in a dll

  - use that from Pharo with proven FFI

Would NativeBoost work with your dll? Should.

I have read a few resources about Nativeboost but I am still naive to know the difference between FFI and nativeboost. The FFI call I made to invoke the DLL function looked similar to the nativeboost calls.

 

I also tried to perform the nativeboost call by creating my structures in Pharo. The function in Windows that can be used to retrieve mac address in Windows: GetAdaptersInfo that accepts a PIP_ADAPTER_INFO  structure. I subclassed NBExternalStructure to define this struct and the other used by it in the image but my NB call returned with 87 code (Invalid parameter) and it was impossible to debug. However, I would like to make this thing work to understand what went wrong.

Has this something to do with 32|64 bit library complications?

Not exactly. For me, it was more related to the fact that I had to map a complex C struct in Pharo. Here is an excerpt of the definition from MSDN:

typedef struct _IP_ADAPTER_INFO {

  struct _IP_ADAPTER_INFO  *Next;

 ...

 PIP_ADDR_STRING         CurrentIpAddress;

          IP_ADDR_STRING          GatewayList;

...

}

So, I had to define three external structures (all names in capitals) and I did the effort but in the end I got an error code that I could not debug in the image. Hence, I gave up and opted to go in the native environment. But I would like someone knowledgable to have a look at my nativeboost code  because the nativeboost approach is more simple (everything's in the image).

I can have a look.

btw. for what do you need the mac address?

 

usman

 

Phil

With ProcessWrapper, I could not load the classes essential for making the plugin work.

HTH,

Usman

On Mon, May 4, 2015 at 2:54 PM, Ben Coman <[hidden email]> wrote:

As a complete newb to VM building I found this fairly straight forward (on a Mac btw).

https://github.com/pharo-project/pharo-vm

cheers -ben

On Mon, May 4, 2015 at 5:28 PM, Usman Bhatti <[hidden email]> wrote:


On Sun, May 3, 2015 at 4:22 PM, Pierce Ng <[hidden email]> wrote:
On Sat, May 02, 2015 at 03:55:47PM +0200, Usman Bhatti wrote:
> 1/ OSProcess: I tried  (PipeableOSProcess command: 'ipconfig /all') output.

I have used http://www.smalltalkhub.com/#!/~hernan/ProcessWrapper successfully
back when I was on Windows using some now-ancient version of Pharo.

I had initially discarded the idea of using this project because it required a plugin and the information of the plugin was outdated on squeaksource. However, having evaluated superficially the complexity of doing it with nativeboost (because too many external c struct involved in the call), I would like to see if I am better off using this wrapper.

I loaded it with:

Gofer it

  url: 'http://www.smalltalkhub.com/mc/hernan/ProcessWrapper/main';

  package: 'ProcessWrapper-Core';

  package: 'ProcessWrapper-Plugin';

  package: 'ProcessWrapper-Tests';        

  load.

But the plugins wont load because it requires the class SmartSyntaxInterpreterPlugin and apparently this file is a part of the VMMaker. Is there any recent config for VMMaker in Pharo because this one looks outdated:

http://pharo.gemtalksystems.com/book/Virtual-Machine/Building/VMMakerTool/

 

Pierce

 

On Thu, May 7, 2015 at 1:06 AM, Nicolai Hess <[hidden email]> wrote:

2015-05-06 22:47 GMT+02:00 Henrik Sperre Johansen <[hidden email]>:

A few easily fixed Type/pointers to Types mixups, and a slipup where two different classes are confused for the same aside, the real show stopper, if I haven't missed something entirely, is that the struct parser/NB in general does not handle const sized arrays*, which is used in a few of the required structs.

Extending the parser should be relatively straight forward, along the lines of adding

stream peek: #'[' ifTrue: [stream next.

   type := SizedExternalArrayType type: type size: stream next.

   stream next = #']' ifFalse: [self error: 'Missing closing bracket for ', type printString]]

to NBExtenralStructureFields >> #parseFields:... after the name is read.

Coding SizedExternalArrayType is a bit more work though...

Cheers,

Henry


*The end goal would be to be able to generate accessors/read/write for a simple test-struct such as

#fieldsDesc
^#(

      char   ip[MyClassVar +2];
)

Yes, a parser for this would be great.

I tried it with a little hack

NBExternalStructure subclass: #Char_260 ...

Char_260 class>>#fieldDesc

^ #(char data)

Char_260 class>>instanceSize
^ 260

You need another accessor for accessing the data, otherwise you'll only get the first char. AND I don't know how

the external memory is handle, probably it is never freed :)

Now a complete example (attached code) call it with

GetMacWin32 getMacAddress

Code loads fine on my 3.0

But hiccup on: 

resolveType: aTypeName

" a type name could be

- a class variable name

- a class name

- a type name 

- a type name, followed by arbitrary number pointer chars - $*"

| name newName resolver binding ptrArity |

newName := aTypeName.

ptrArity := 0.

"resolve aliases and pointers"

[

name := newName trimRight.     <<<--------------- HERE - as newName is a subclass of NBExternalStructure, so no trimRight

newName := self aliasForType: name.

newName last = $* ifTrue: [

ptrArity := ptrArity + 1.

newName := newName allButLast ].

name = newName ] whileFalse.

I changed to name := newName asString trimRight.

Call worked then but output gives this:

GetMacWin32 getMacAddress 'BYTE_8 ( 

data: $¼  <-- some weird string here

)' 

Also, I wonder why you call the primGet... twice

getMacAddressOf: iInterface

| ptr ptr2 nul ret |

ptr := NativeBoost allocate: 4.

nul := NativeBoost allocate: 0.

ptr nbUInt32AtOffset: 0 put: 0.

ret := self primGetAdaptersInfo: nul length: ptr.

ret = 111 "ERROR_BUFFER_OVERFLOW"

ifTrue: [ 

| size |

size := ptr nbUInt32AtOffset: 0.

ptr2 := NativeBoost allocate: size.

ret := self primGetAdaptersInfo: ptr2 length: ptr.

ret = 0 "NO_ERROR" 

ifTrue: [ 

| pip numberOfInterfaces|

  numberOfInterfaces := size / IpAdapterInfo instanceSize.

  (iInterface between:1 and: numberOfInterfaces)  ifFalse:[ ^ nil].

pip := (NBExternalArray ofType: IpAdapterInfo) onAddress: ptr2 size: numberOfInterfaces.

^ (pip at:iInterface ) Address asString]].

^ nil

Phil

 

 

On Wed, May 6, 2015 at 5:28 PM, Esteban Lorenzano <[hidden email]> wrote:

On 06 May 2015, at 17:03, Nicolai Hess <[hidden email]> wrote:

2015-05-06 16:40 GMT+02:00 Esteban Lorenzano <[hidden email]>:

On 06 May 2015, at 12:10, [hidden email] wrote:

I've loaded your package.

A prerequisite is to load OS-Window to make it work.

why?

in any case, oswindow is already included in pharo4

OS-Windows (by TorstenBergmann)

not

OSWindow  :)

ahhh. Name clash :)

It is needed for the shared pool WinTypes,

but without OS-Window, he can use NBWinTypes instead.

 

Esteban

I've got the DLL call working nicely and the nativeboost with the structure freezing.

Now, we should all have a look at:

https://github.com/ronsaldo/bullet-pharo

and

https://github.com/ronsaldo/swig

because it looks like the way to go to wrap libraries...

Ronie, I know you modified swig for generating Pharo code;

Is cloning your swig repo the way to go ?

Phil

On Wed, May 6, 2015 at 10:39 AM, Usman Bhatti <[hidden email]> wrote:

Hi Nicolai,

Here is my package that defines the nativeboost call and associated C structs.

The external C struct is self referencing and hence sometimes I get infinite recursion when trying to change field descriptions. That is the reason why the automatically generated accessors are absent (although I had them in an earlier version).

Attached also the DLL referenced in the code.

On Wed, May 6, 2015 at 9:58 AM, Nicolai Hess <[hidden email]> wrote:

2015-05-06 9:53 GMT+02:00 Usman Bhatti <[hidden email]>:

On Tue, May 5, 2015 at 7:34 PM, [hidden email] <[hidden email]> wrote:

On Tue, May 5, 2015 at 6:28 PM, Usman Bhatti <[hidden email]> wrote:

I succeeded to do it by encapsulating the C routine as a DLL and doing an FFI call from my image (as suggested by Guille).

At least there was a way!

Exactly :)

 

Looks like this is the most controlled|debuggable way:

  - get it working with C code out of Pharo

  - make a bridge that can be used easily with FFI in a dll

  - use that from Pharo with proven FFI

Would NativeBoost work with your dll? Should.

I have read a few resources about Nativeboost but I am still naive to know the difference between FFI and nativeboost. The FFI call I made to invoke the DLL function looked similar to the nativeboost calls.

 

I also tried to perform the nativeboost call by creating my structures in Pharo. The function in Windows that can be used to retrieve mac address in Windows: GetAdaptersInfo that accepts a PIP_ADAPTER_INFO  structure. I subclassed NBExternalStructure to define this struct and the other used by it in the image but my NB call returned with 87 code (Invalid parameter) and it was impossible to debug. However, I would like to make this thing work to understand what went wrong.

Has this something to do with 32|64 bit library complications?

Not exactly. For me, it was more related to the fact that I had to map a complex C struct in Pharo. Here is an excerpt of the definition from MSDN:

typedef struct _IP_ADAPTER_INFO {

  struct _IP_ADAPTER_INFO  *Next;

 ...

 PIP_ADDR_STRING         CurrentIpAddress;

          IP_ADDR_STRING          GatewayList;

...

}

So, I had to define three external structures (all names in capitals) and I did the effort but in the end I got an error code that I could not debug in the image. Hence, I gave up and opted to go in the native environment. But I would like someone knowledgable to have a look at my nativeboost code  because the nativeboost approach is more simple (everything's in the image).

I can have a look.

btw. for what do you need the mac address?

 

usman

 

Phil

With ProcessWrapper, I could not load the classes essential for making the plugin work.

HTH,

Usman

On Mon, May 4, 2015 at 2:54 PM, Ben Coman <[hidden email]> wrote:

As a complete newb to VM building I found this fairly straight forward (on a Mac btw).

https://github.com/pharo-project/pharo-vm

cheers -ben

On Mon, May 4, 2015 at 5:28 PM, Usman Bhatti <[hidden email]> wrote:


On Sun, May 3, 2015 at 4:22 PM, Pierce Ng <[hidden email]> wrote:
On Sat, May 02, 2015 at 03:55:47PM +0200, Usman Bhatti wrote:
> 1/ OSProcess: I tried  (PipeableOSProcess command: 'ipconfig /all') output.

I have used http://www.smalltalkhub.com/#!/~hernan/ProcessWrapper successfully
back when I was on Windows using some now-ancient version of Pharo.

I had initially discarded the idea of using this project because it required a plugin and the information of the plugin was outdated on squeaksource. However, having evaluated superficially the complexity of doing it with nativeboost (because too many external c struct involved in the call), I would like to see if I am better off using this wrapper.

I loaded it with:

Gofer it

  url: 'http://www.smalltalkhub.com/mc/hernan/ProcessWrapper/main';

  package: 'ProcessWrapper-Core';

  package: 'ProcessWrapper-Plugin';

  package: 'ProcessWrapper-Tests';        

  load.

But the plugins wont load because it requires the class SmartSyntaxInterpreterPlugin and apparently this file is a part of the VMMaker. Is there any recent config for VMMaker in Pharo because this one looks outdated:

http://pharo.gemtalksystems.com/book/Virtual-Machine/Building/VMMakerTool/

 

Pierce

 

--

---

Philippe Back

Visible Performance Improvements

Mob: +32(0) 478 650 140 | Fax: +32 (0) 70 408 027

[hidden email] | Web: http://philippeback.eu

Blog: http://philippeback.be | Twitter: @philippeback

Youtube: http://www.youtube.com/user/philippeback/videos

High Octane SPRL

rue cour Boisacq 101 | 1301 Bierges | Belgium

Pharo Consortium Member - http://consortium.pharo.org/

Featured on the Software Process and Measurement Cast - http://spamcast.libsyn.com

Sparx Systems Enterprise Architect and Ability Engineering EADocX Value Added Reseller