Mixing
Include and use precompiled .dll / .so in R package
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I would like to create an R package that contains a precompiled .dll/.so file. It is unclear to me where to put the file in the package structure (e.g. in the folder inst?) and how to load it -- e.g. what lines do I need to add to other files that allow the .dll or .so to be loaded and functions contained in it to be used.
In particular, I would like to see some examples for the use of dyn.load(), .C() and library.dynam().
In a normal script that is not a package, I would load the dll via
dyn.load("path/to/my_dll.dll")
and then call specific functions contained in that .dll by using
.C("dll_func", input)
However, this seems to be different when trying to convert my script into a package.
Also, do I need .onLoad and how do I use it correctly?
r dll r-package
asked Jan 3 at 12:51
VolokhVolokh
1279
add a comment |
I would like to create an R package that contains a precompiled .dll/.so file. It is unclear to me where to put the file in the package structure (e.g. in the folder inst?) and how to load it -- e.g. what lines do I need to add to other files that allow the .dll or .so to be loaded and functions contained in it to be used.
In particular, I would like to see some examples for the use of dyn.load(), .C() and library.dynam().
In a normal script that is not a package, I would load the dll via
dyn.load("path/to/my_dll.dll")
and then call specific functions contained in that .dll by using
.C("dll_func", input)
However, this seems to be different when trying to convert my script into a package.
Also, do I need .onLoad and how do I use it correctly?
r dll r-package
asked Jan 3 at 12:51
VolokhVolokh
1279
3
Possible duplicate of How to load compiled library in an R package. tl;dr : putmy_dll.dllininst/lib/and trydyn.load(system.file("lib/my_dll.dll", package=<mypkg>))
– duckmayr
Jan 3 at 13:50
Nothing about theonLoadin the linked post...
– Stéphane Laurent
Jan 3 at 14:39
Volokh:see here for an example ofonLoad.
– Stéphane Laurent
Jan 3 at 14:43
Thank you for your input. Indeed there was some helpful information in the question you linked, however there are still some difficulties. I use an R package with Rcpp and it automatically generates a fileRcppExports.cpp(generated byRcpp::compileAttributes()) that includes references to functions contained in the precompiled .dll file. Unfortunately, as soon as this file is generated by building the package, a furtherdevtools::check()gives an error:RcppExports.o:RcppExports.cpp:(.rdata+0x760): undefined reference to dll_func.Is there any way around this?
– Volokh
Jan 3 at 15:06
add a comment |
I would like to create an R package that contains a precompiled .dll/.so file. It is unclear to me where to put the file in the package structure (e.g. in the folder inst?) and how to load it -- e.g. what lines do I need to add to other files that allow the .dll or .so to be loaded and functions contained in it to be used.
In particular, I would like to see some examples for the use of dyn.load(), .C() and library.dynam().
In a normal script that is not a package, I would load the dll via
dyn.load("path/to/my_dll.dll")
and then call specific functions contained in that .dll by using
.C("dll_func", input)
However, this seems to be different when trying to convert my script into a package.
Also, do I need .onLoad and how do I use it correctly?
r dll r-package
asked Jan 3 at 12:51
VolokhVolokh
1279
I would like to create an R package that contains a precompiled .dll/.so file. It is unclear to me where to put the file in the package structure (e.g. in the folder inst?) and how to load it -- e.g. what lines do I need to add to other files that allow the .dll or .so to be loaded and functions contained in it to be used.
In particular, I would like to see some examples for the use of dyn.load(), .C() and library.dynam().
In a normal script that is not a package, I would load the dll via
dyn.load("path/to/my_dll.dll")
and then call specific functions contained in that .dll by using
.C("dll_func", input)
However, this seems to be different when trying to convert my script into a package.
Also, do I need .onLoad and how do I use it correctly?
r dll r-package
r dll r-package
asked Jan 3 at 12:51
VolokhVolokh
1279
asked Jan 3 at 12:51
VolokhVolokh
1279
asked Jan 3 at 12:51
VolokhVolokh
1279
asked Jan 3 at 12:51
VolokhVolokh
1279
asked Jan 3 at 12:51
VolokhVolokh
1279
1279
3
Possible duplicate of How to load compiled library in an R package. tl;dr : putmy_dll.dllininst/lib/and trydyn.load(system.file("lib/my_dll.dll", package=<mypkg>))
– duckmayr
Jan 3 at 13:50
Nothing about theonLoadin the linked post...
– Stéphane Laurent
Jan 3 at 14:39
Volokh:see here for an example ofonLoad.
– Stéphane Laurent
Jan 3 at 14:43
Thank you for your input. Indeed there was some helpful information in the question you linked, however there are still some difficulties. I use an R package with Rcpp and it automatically generates a fileRcppExports.cpp(generated byRcpp::compileAttributes()) that includes references to functions contained in the precompiled .dll file. Unfortunately, as soon as this file is generated by building the package, a furtherdevtools::check()gives an error:RcppExports.o:RcppExports.cpp:(.rdata+0x760): undefined reference to dll_func.Is there any way around this?
– Volokh
Jan 3 at 15:06
add a comment |
3
Possible duplicate of How to load compiled library in an R package. tl;dr : putmy_dll.dllininst/lib/and trydyn.load(system.file("lib/my_dll.dll", package=<mypkg>))
– duckmayr
Jan 3 at 13:50
Nothing about theonLoadin the linked post...
– Stéphane Laurent
Jan 3 at 14:39
Volokh:see here for an example ofonLoad.
– Stéphane Laurent
Jan 3 at 14:43
Thank you for your input. Indeed there was some helpful information in the question you linked, however there are still some difficulties. I use an R package with Rcpp and it automatically generates a fileRcppExports.cpp(generated byRcpp::compileAttributes()) that includes references to functions contained in the precompiled .dll file. Unfortunately, as soon as this file is generated by building the package, a furtherdevtools::check()gives an error:RcppExports.o:RcppExports.cpp:(.rdata+0x760): undefined reference to dll_func.Is there any way around this?
– Volokh
Jan 3 at 15:06
3
3
Possible duplicate of How to load compiled library in an R package. tl;dr : put
my_dll.dll in inst/lib/ and try dyn.load(system.file("lib/my_dll.dll", package=<mypkg>))– duckmayr
Jan 3 at 13:50
Possible duplicate of How to load compiled library in an R package. tl;dr : put
my_dll.dll in inst/lib/ and try dyn.load(system.file("lib/my_dll.dll", package=<mypkg>))– duckmayr
Jan 3 at 13:50
Nothing about the
onLoad in the linked post...– Stéphane Laurent
Jan 3 at 14:39
Nothing about the
onLoad in the linked post...– Stéphane Laurent
Jan 3 at 14:39
Volokh:see here for an example of
onLoad.– Stéphane Laurent
Jan 3 at 14:43
Volokh:see here for an example of
onLoad.– Stéphane Laurent
Jan 3 at 14:43
Thank you for your input. Indeed there was some helpful information in the question you linked, however there are still some difficulties. I use an R package with Rcpp and it automatically generates a file
RcppExports.cpp (generated by Rcpp::compileAttributes()) that includes references to functions contained in the precompiled .dll file. Unfortunately, as soon as this file is generated by building the package, a further devtools::check() gives an error: RcppExports.o:RcppExports.cpp:(.rdata+0x760): undefined reference to dll_func. Is there any way around this?– Volokh
Jan 3 at 15:06
Thank you for your input. Indeed there was some helpful information in the question you linked, however there are still some difficulties. I use an R package with Rcpp and it automatically generates a file
RcppExports.cpp (generated by Rcpp::compileAttributes()) that includes references to functions contained in the precompiled .dll file. Unfortunately, as soon as this file is generated by building the package, a further devtools::check() gives an error: RcppExports.o:RcppExports.cpp:(.rdata+0x760): undefined reference to dll_func. Is there any way around this?– Volokh
Jan 3 at 15:06
add a comment |
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3
Possible duplicate of How to load compiled library in an R package. tl;dr : put
my_dll.dllininst/lib/and trydyn.load(system.file("lib/my_dll.dll", package=<mypkg>))– duckmayr
Jan 3 at 13:50
Nothing about the
onLoadin the linked post...– Stéphane Laurent
Jan 3 at 14:39
Volokh:see here for an example of
onLoad.– Stéphane Laurent
Jan 3 at 14:43
Thank you for your input. Indeed there was some helpful information in the question you linked, however there are still some difficulties. I use an R package with Rcpp and it automatically generates a file
RcppExports.cpp(generated byRcpp::compileAttributes()) that includes references to functions contained in the precompiled .dll file. Unfortunately, as soon as this file is generated by building the package, a furtherdevtools::check()gives an error:RcppExports.o:RcppExports.cpp:(.rdata+0x760): undefined reference to dll_func.Is there any way around this?– Volokh
Jan 3 at 15:06