| ▲ | riku_iki 3 days ago |
| Not sure about .NET, but Java doesn't have arenas.. |
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| ▲ | pjmlp 3 days ago | parent | next [-] |
| It surely has them since Project Panama, as memory segments. |
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| ▲ | metaltyphoon 3 days ago | parent | prev | next [-] |
| It’s this simple in .NET ArrayPool<T>
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| ▲ | riku_iki 3 days ago | parent [-] | | will elements of arraypool still be tracked by GC with overhead? | | |
| ▲ | pjmlp 3 days ago | parent [-] | | Depends on the T. .NET has value types, explicit stack allocation, low level unsafe programming C style, and manual memory management as well. |
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| ▲ | kernal 3 days ago | parent | prev [-] |
| java.lang.foreign.Arena |
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| ▲ | riku_iki 3 days ago | parent [-] | | My understanding is that that arena allows you to allocate memory segments, but you can't do much with it, you can't allocate var or object on it like in C++ for example, so its almost useless. | | |
| ▲ | kernal 2 days ago | parent | next [-] | | https://docs.oracle.com/en/java/javase/21/core/memory-segmen... | | |
| ▲ | riku_iki 2 days ago | parent [-] | | That Arena is not integrated into language. You can't do something like: var myObj = new(my_arena) MyClass(); |
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| ▲ | pjmlp 3 days ago | parent | prev [-] | | You certainly can, as they were designed as JNI replacement, with the goal to fully support the C ABI of the host platform. You can either do the whole boilerplate manually with Panama set of APIs, or write a C header file and let jextract do the work of boilerplate generation. | | |
| ▲ | riku_iki 2 days ago | parent [-] | | > You certainly can I am wondering if there is working code example, or this is just speculation? |
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