On Fri, Jul 8, 2016 at 10:07 AM, Marcelo Vanzin <van...@cloudera.com> wrote:
> Answering based on old knowledge of this code, but I don't believe it > has changed... > > On Fri, Jul 8, 2016 at 9:36 AM, Gary Gregory <garydgreg...@gmail.com> > wrote: > > The delivered jar file contains a native .so file, and this .so file is > > _extracted_ and _installed_ on the user's machine at runtime? See > > NativeCodeLoader.extractLibraryFile(). > > It's not really installed, but copied to a temp location. There might > be flags to configure a permanent location (which would bypass this > code that finds the library inside the jar), but I don't remember if > that was added to crypto. > > This feature is borrowed from Snappy's java bindings, and is pretty > helpful on distributed applications where a "launcher" app starts > processes on a whole bunch of different machines (and needs these > libraries). > > > Does this mean that the jar will contain all possible native formats > (.so, > > .dll, what about 32 vs. 64 bit, or are we only dealing with 64 bit?) and > > extract the right one at runtime for the current platform? Seems wasteful > > in space but portable and clever. > > That's the goal if multiple OSes are to be supported; I'm not sure how > easy it would be to achieve with the current build system available > (haven't really looked into it), but I have ideas of how to hack > something like that in maven (using a few separate jobs per OS + a > final job to collect everything). > > I've heard comments here about using JNA, so maybe this whole > discussion will eventually become moot? > The JNA code is in place, it's just much slower than the JNI path. Gary > > -- > Marcelo > > --------------------------------------------------------------------- > To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org > For additional commands, e-mail: dev-h...@commons.apache.org > > -- E-Mail: garydgreg...@gmail.com | ggreg...@apache.org Java Persistence with Hibernate, Second Edition <http://www.manning.com/bauer3/> JUnit in Action, Second Edition <http://www.manning.com/tahchiev/> Spring Batch in Action <http://www.manning.com/templier/> Blog: http://garygregory.wordpress.com Home: http://garygregory.com/ Tweet! http://twitter.com/GaryGregory
