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C++ access from scala

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Paul Weiss

C++ access from scala

Hi,

Are there any better alternatives to accessing C++ libraries from scala other than JNI. Ideally would like to avoid copying data into the C++ memory space via off heap or other mechanism. Have legacy C++ code libs that need integration with scala programs.

thanks,

-paul

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Ruslan Shevchenko-2

Re: C++ access from scala

You can use offheap memory buffer. Same memory chunk can be viewed as MappedByteBuffer for java and mmap mapped region from C++/C side.

// Well-known project wich use this approach: https://github.com/real-logic/Aeron

On Thu, Aug 25, 2016 at 6:43 PM Paul Weiss <[hidden email]> wrote:

Hi,

Are there any better alternatives to accessing C++ libraries from scala other than JNI. Ideally would like to avoid copying data into the C++ memory space via off heap or other mechanism. Have legacy C++ code libs that need integration with scala programs.

thanks,
-paul

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Alex Cruise-2

Re: C++ access from scala

In reply to this post by Paul Weiss

The cleanest thing I've seen is https://github.com/java-native-access/jna.

-0xe1a

On Thu, Aug 25, 2016 at 8:43 AM, Paul Weiss <[hidden email]> wrote:

Hi,

Are there any better alternatives to accessing C++ libraries from scala other than JNI. Ideally would like to avoid copying data into the C++ memory space via off heap or other mechanism. Have legacy C++ code libs that need integration with scala programs.

thanks,
-paul

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