Hi all, For info, short of a solution for linking cgo specific C functions cross package, I think one can do this with C function pointers, which at least is a close approximation of directly calls.
Best, Scott On Sunday, 30 September 2018 14:08:28 UTC+2, Scott Cotton wrote: > > Thanks > > In my case, believe it or not -- and for a very particular use case, > I cannot call the shared C functionality from Go, it must be called > from C. And I want to avoid telling consumers to use make to create a > C library, so that go get and modules will work. > > It looks to me like your solution, at least from the README calls > make, and I can't find an example (though I may well have missed > something) of shared package specific cgo C code outside of a C > library being called by C in another package. > > Can you clarify if or how your suggestion will meet my requirements (1 > -- go tool only, no make, 2 -- cgo C function called by C in more than > one package)? > > Scott > On Sun, 30 Sep 2018 at 13:57, Simon Ritchie <simonritchie...@gmail.com> > wrote: > > > > Write a separate package to handle the C stuff and call it from the > other two. > > > > I built a wrapper for a c++ library: > https://github.com/goblimey/rplidar_sdk_go. The c++ code used various > features that defeated cgo, so I ended up with a multi-layered solution. > > > > One thing I discovered is that cgo has a nasty habit of rewriting the Go > code that calls C code, including trampling on your comments, so keeping > that code in a separate layer is a good idea. > > > > -- > > You received this message because you are subscribed to a topic in the > Google Groups "golang-nuts" group. > > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/golang-nuts/ruLltGrPWBg/unsubscribe. > > To unsubscribe from this group and all its topics, send an email to > golang-nuts+unsubscr...@googlegroups.com. > > For more options, visit https://groups.google.com/d/optout. > > > > -- > Scott Cotton > http://www.iri-labs.com > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
