Make access to the netcdf-c library be synchronized

[DennisHeimbigner]

Upgrade to net.java.dev.jna:jna:4.2.2
so that we can use Native.synchronizedLibrary()
to force synchronized (single-thread) access to
the netcdf-c library.

This is effectively a back-port of what already was done for 5.0.0

[lesserwhirls]

Thanks @DennisHeimbigner!

[cwardgar]

So does this obviate the need to build hdf5 with --enable-threadsafe for THREDDS? That would be big, as it would allow users to grab netcdf from a package manager, instead of needing to build it themselves.

[lesserwhirls]

That's the hope...also the hope that this fixes the issues on motherlode (although it does not help the issues building the dang thing, but nothing in Java that will help that!).

[DennisHeimbigner]

It is my belief that it does make it unnessary to build thread safety into HDF5 (or netcdf-c, for that matter). But as I said to Sean, I have no good way to test this (yet). =Dennis

…

On 3/12/2017 7:01 PM, Sean Arms wrote: That's the hope...also the hope that this fixes the issues on motherlode (although it does not help the issues building the dang thing, but nothing in Java that will help that!). — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#777 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AA3P24dbnKOE8lwLHZOKsNBQJy4J6DLqks5rlJV7gaJpZM4MaqyI>.