Mirror von
https://github.com/PaperMC/Velocity.git
synchronisiert 2024-12-25 15:50:19 +01:00
31 Zeilen
1.6 KiB
Markdown
31 Zeilen
1.6 KiB
Markdown
# velocity-natives
|
|
|
|
This directory contains native acceleration code for Velocity, along with
|
|
traditional Java fallbacks.
|
|
|
|
## Compression
|
|
|
|
* **Supported platforms**: Linux x86_64 and aarch64, with Java 11 `ByteBuffer` API support as a fallback.
|
|
Compiled on CentOS 7.
|
|
* **Rationale**: Using a native zlib wrapper, we can avoid multiple trips into Java just to copy memory around.
|
|
|
|
## Encryption
|
|
|
|
* **Supported platforms**: Linux x86_64 (OpenSSL 1.0.x and OpenSSL 1.1.x) and aarch64 (OpenSSL 1.1.x only)
|
|
* **Rationale**: Using a C library for encryption means we can limit memory copies. Prior to Java 7, this was the only
|
|
way to use AES-NI extensions on modern processors, but this is less important since JDK 8 has native support.
|
|
* OpenSSL is not included in Velocity. Every distribution provides it now. To deal with ABI incompatibilities,
|
|
the native library (which only calls into OpenSSL and contains no cryptographic code) are available for
|
|
CentOS 7 (OpenSSL 1.0.0-based) and Debian 9 (OpenSSL 1.1.0-based) to provide the widest, most reasonable
|
|
compatibility with most modern distributions.
|
|
|
|
## OS support
|
|
|
|
The natives intend to have the widest possible range of compatibility with modern Linux distributions
|
|
(defined as those being released in or after 2014).
|
|
|
|
In theory, these libraries can be compiled for any Unix-like system (in the past, we supported macOS),
|
|
but interest in other systems is minimal at best, thus we focus on Linux x86_64 and aarch64 as they
|
|
are commonly used platforms.
|
|
|
|
Alpine Linux support is on a "best-effort" basis only. Using `apk add libc6-compat` may enable native support. |