On 22/09/2010 11:22 AM, Karl Forner wrote:
Thanks Duncan for your suggestion.
I could not find any package using dynamic library, namespaces and not the
useDynLib pragma so
I created a minimalistic package to demonstrate the problem.
Please find attached a very small package foo (8.8k)
Your package depends on Rcpp, so I didn't try it in the alpha version of
2.12.0 (Rcpp isn't available there in a Windows binary at the moment),
but I did try it in R-patched. With one minor change to your script
(the lib.loc needs to be "local", not "local/" on Windows), I can
reproduce the problem, and it looks like a bug to me. Thanks for the
report, I'll put it on the bugs page, and hopefully it will be fixed
before the 2.12.0 release.
Duncan Murdoch
Steps to reproduce the problem:
* unarchive it ( tar zxvf foo_0.1.tar.gz )
* cd foo
* install it locally ( mkdir local; R CMD INSTALL -l local . )
* R
> library(foo, lib.loc="local/")
>.dynLibs()
# there you should be able to see the foo.so lib, in my case
/x05/people/m160508/workspace/foo/local/foo/libs/foo.so
> unloadNamespace("foo")
.onUnload, libpath= local/fooWarning message:
.onUnload failed in unloadNamespace() for 'foo', details:
call: library.dynam.unload("foo", libpath)
error: shared library 'foo' was not loaded
#The libpath that the .onUnload() gets is "local/foo".
#This fails:
>library.dynam.unload("foo", "local/foo")
Error in library.dynam.unload("foo", "local/foo") :
shared library 'foo' was not loaded
# but if you use the absolute path it works:
>library.dynam.unload("foo", "/x05/people/m160508/workspace/foo/local/foo")
Karl
On Tue, Sep 21, 2010 at 5:33 PM, Duncan Murdoch<murdoch.dun...@gmail.com>wrote:
> On 21/09/2010 10:38 AM, Karl Forner wrote:
>
>> Hello,
>>
>> I got no reply on this issue.
>> It is not critical and I could think of work-around, but it really looks
>> like a bug to me.
>> Should I file a bug-report instead of posting in this list ?
>>
>
> I'd probably post instructions for a reproducible example first. Pick some
> CRAN package, tell us what to do with it to trigger the error, and then we
> can see if it's something special about your package or Roxygen or a general
> problem.
>
> Duncan Murdoch
>
> Thanks,
>>
>> Karl
>>
>> On Thu, Sep 16, 2010 at 6:11 PM, Karl Forner<karl.for...@gmail.com>
>> wrote:
>>
>> > Hello,
>> >
>> > I have a package with a namespace. Because I use Roxygen that
>> overwrites
>> > the NAMESPACE file each time it is run, I use a R/zzz.R file with
>> > an .onLoad() and .onUnload() functions to take care of loading and
>> > unloading my shared library.
>> >
>> > The problem: if I load my library from a local directory, then the
>> > unloading of the package fails, e.g:
>> >
>> > # loads fine
>> > >library(Foo, lib.loc=".Rcheck")
>> >
>> > >unloadNamespace("Foo")
>> > Warning message:
>> > .onUnload failed in unloadNamespace() for 'Foo', details:
>> > call: library.dynam.unload("Foo", libpath)
>> > error: shared library 'Foo' was not loaded
>> >
>> > # I traced it a little:
>> > >library.dynam.unload("Foo", ".Rcheck/Foo")
>> > Error in library.dynam.unload("Foo", ".Rcheck/Foo") :
>> > shared library 'Foo' was not loaded
>> >
>> > # using an absolute path works
>> > >library.dynam.unload("Foo", "/home/toto/.Rcheck/Foo")
>> >
>> >
>> > So from what I understand, the problem is either that the relative
>> libpath
>> > is sent to the .onUnload() function instead of the absolute one,
>> > or that library.dynam.unload() should be modified to handle the
>> relative
>> > paths.
>> >
>> > Am I missing something ? What should I do ?
>> >
>> > Thanks,
>> >
>> >
>> > Karl
>> >
>>
>> [[alternative HTML version deleted]]
>>
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>>
>
>
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