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Re: [Cs-dev] dynamically load csoundlib?

Date2006-09-12 19:20
FromVictor Lazzarini
SubjectRe: [Cs-dev] dynamically load csoundlib?
When you say static, do you actually mean linked against
a dynamic lib? Because static really means the actual
code being statically loaded into the executable.

Well, as far as I know CsoundLib is designed to be linked
against, rather than loaded at runtime. But this does not
mean it can't be done. Generally (well you know this
already) bundles are loaded at runtime and dylibs linked
against. But dylibs can be loaded at runtime, plugin
opcodes are dylibs that are used like that.

I am just wondering whether it will be more of a headache
to do this that it might not be worth it.

Victor
>
> does any csound front end load the csoundlib dynamically?
> and how it would this work -- do you need to make calls to
> find pointers to the API functions or ??
>
> i used to do this with csound4, but now with csound5 i
> statically   link to it.
> the downside is that if the csoundLib isn't installed (or
> perhaps   just an incompatible version?)
> my host app will not even launch.  i can live with that,
> but i could   see in the future having
> this or other applications where csound is optional and i
> would want   to use my app
> even when csoundLib is not installed.
>
> thanks,
> m
>
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Date2006-09-13 18:33
Frommatt ingalls
SubjectRe: [Cs-dev] dynamically load csoundlib?
On Sep 12, 2006, at 11:20 AM, Victor Lazzarini wrote:

> When you say static, do you actually mean linked against
> a dynamic lib? Because static really means the actual
> code being statically loaded into the executable.

sorry, yes - that's what i meant.

> Well, as far as I know CsoundLib is designed to be linked
> against, rather than loaded at runtime. But this does not
> mean it can't be done. Generally (well you know this
> already) bundles are loaded at runtime and dylibs linked
> against. But dylibs can be loaded at runtime, plugin
> opcodes are dylibs that are used like that.
>
> I am just wondering whether it will be more of a headache
> to do this that it might not be worth it.

well i am not suggesting to eliminate how it currently works, i
was just wondering if it was possible to do it all at run-time.
  how i did with with csound4, was i loaded the the csoundLib, then
i  grabbed the API function
pointers from the CSOUND struct and call the functions that way.
i don't know if this is possible with csound5, or if the function  
pointers
are just for the opcode plugins -- i guess i should just look at the  
code,
huh??

another way around this is to try to have CsoundLib.framework inside my
application bundle ( although i think this might come close to violating
the license).   or perhaps the most simplest way is distribute the  
csoundlib
and supportlibs with my installer.

thanks,
m

>
> Victor
>>
>> does any csound front end load the csoundlib dynamically?
>> and how it would this work -- do you need to make calls to
>> find pointers to the API functions or ??
>>
>> i used to do this with csound4, but now with csound5 i
>> statically   link to it.
>> the downside is that if the csoundLib isn't installed (or
>> perhaps   just an incompatible version?)
>> my host app will not even launch.  i can live with that,
>> but i could   see in the future having
>> this or other applications where csound is optional and i
>> would want   to use my app
>> even when csoundLib is not installed.
>>
>> thanks,
>> m
>>
>> ----------------------------------------------------------
>> --------------- Using Tomcat but need to do more? Need to
>> support web services, security? Get stuff done quickly
>> with pre-integrated technology to make your job easier
>> Download IBM WebSphere Application Server v.1.0.1 based on
>> Apache Geronimo
>>
> http://sel.as-us.falkag.net/sel? 
> cmd=lnk&kid=120709&bid=263057&dat=121642
>> _______________________________________________
>> Csound-devel mailing list
>> Csound-devel@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/csound-devel
>
> ---------------------------------------------------------------------- 
> ---
> Using Tomcat but need to do more? Need to support web services,  
> security?
> Get stuff done quickly with pre-integrated technology to make your  
> job easier
> Download IBM WebSphere Application Server v.1.0.1 based on Apache  
> Geronimo
> http://sel.as-us.falkag.net/sel? 
> cmd=lnk&kid=120709&bid=263057&dat=121642
> _______________________________________________
> Csound-devel mailing list
> Csound-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/csound-devel
>


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