rockserver/src/main/java/it/cavallium/rockserver/core/impl/XXHash32.java
2023-12-06 00:43:35 +01:00

48 lines
1.3 KiB
Java

package it.cavallium.rockserver.core.impl;
/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.lang.foreign.Arena;
import java.lang.foreign.MemorySegment;
/**
* A 32-bits hash.
* <p>
* Instances of this class are thread-safe.
*/
public abstract class XXHash32 {
/**
* Compute the 32-bits hash of <code>buf[off:off+len]</code> using seed
* <code>seed</code>.
*/
public abstract int hash(byte[] buf, int off, int len, int seed);
/**
* Compute the big-endian 32-bits hash of <code>buf[off:off+len]</code> using seed
* <code>seed</code>.
*/
public abstract MemorySegment hash(Arena arena, MemorySegment buf, int off, int len, int seed);
@Override
public String toString() {
return getClass().getSimpleName();
}
public static XXHash32 getInstance() {
return XXHash32JavaSafe.INSTANCE;
}
}