/*
 * Copyright 2017 Pronghorn Technology LLC
 *
 * 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.
 */

package tech.pronghorn.server.bufferpools

import tech.pronghorn.plugins.internalQueue.InternalQueuePlugin
import java.nio.ByteBuffer

public class ReusableBufferPoolManager(public val bufferSize: Int,
                                       public val direct: Boolean = false) {
    public fun getBuffer(): ReusableByteBuffer = pool.poll() ?: ReusableByteBuffer(
            this,
            if (direct) ByteBuffer.allocateDirect(bufferSize) else ByteBuffer.allocate(bufferSize)
    )

    public fun release(buffer: ReusableByteBuffer) {
        pool.offer(buffer)
    }

    private val pool = InternalQueuePlugin.getUnbounded<ReusableByteBuffer>()
}
