Java ByteBuffer Get transferUntilTargetPos(ByteBuffer src, ByteBuffer trg, int trgPos)

Description

Copy as many byte from source to target, until either source has no more data, target cannot take more or the trg.position() is equals to limit value.

License

Open Source License

Declaration

public static void transferUntilTargetPos(ByteBuffer src, ByteBuffer trg, int trgPos) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.nio.ByteBuffer;

public class Main {
    /**// ww w  .  j  av  a2s  .com
     * Copy as many byte from source to target, until either source has no more data, target cannot take more or 
     * the trg.position() is equals to limit value.
     */
    public static void transferUntilTargetPos(ByteBuffer src, ByteBuffer trg, int trgPos) {
        int cpySz = Math.min(src.remaining(), Math.min(trgPos - trg.position(), trg.remaining()));
        if (cpySz <= 0) {
            return;
        }
        int oldLimit = src.limit();
        src.limit(src.position() + cpySz);
        trg.put(src);
        src.limit(oldLimit);
    }
}

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