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)
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]]
>>
>> ______________________________________________
>> R-devel@r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-devel
>>
>
>
foo_0.1.tar.gz
Description: GNU Zip compressed data
______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
