/*
 * Copyright 2015 The Netty Project
 *
 * The Netty Project licenses this file to you 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 io.netty.channel.epoll;

import io.netty.buffer.ByteBufAllocator;

import io.netty.channel.DefaultChannelConfig;
import io.netty.channel.MessageSizeEstimator;
import io.netty.channel.RecvByteBufAllocator;
import io.netty.channel.WriteBufferWaterMark;

import static io.netty.channel.unix.Limits.SSIZE_MAX;

public class EpollChannelConfig extends DefaultChannelConfig {
    private volatile long maxBytesPerGatheringWrite = SSIZE_MAX;

    EpollChannelConfig(AbstractEpollChannel channel) {
        super(channel);
    }

    @Override
    public EpollChannelConfig setConnectTimeoutMillis(int connectTimeoutMillis) {
        super.setConnectTimeoutMillis(connectTimeoutMillis);
        return this;
    }

    @Override
    @Deprecated
    public EpollChannelConfig setMaxMessagesPerRead(int maxMessagesPerRead) {
        super.setMaxMessagesPerRead(maxMessagesPerRead);
        return this;
    }

    @Override
    public EpollChannelConfig setWriteSpinCount(int writeSpinCount) {
        super.setWriteSpinCount(writeSpinCount);
        return this;
    }

    @Override
    public EpollChannelConfig setAllocator(ByteBufAllocator allocator) {
        super.setAllocator(allocator);
        return this;
    }

    @Override
    public EpollChannelConfig setRecvByteBufAllocator(RecvByteBufAllocator allocator) {
        if (!(allocator.newHandle() instanceof RecvByteBufAllocator.ExtendedHandle)) {
            throw new IllegalArgumentException("allocator.newHandle() must return an object of type: " +
                    RecvByteBufAllocator.ExtendedHandle.class);
        }
        super.setRecvByteBufAllocator(allocator);
        return this;
    }

    @Override
    public EpollChannelConfig setAutoRead(boolean autoRead) {
        super.setAutoRead(autoRead);
        return this;
    }

    @Override
    @Deprecated
    public EpollChannelConfig setWriteBufferHighWaterMark(int writeBufferHighWaterMark) {
        super.setWriteBufferHighWaterMark(writeBufferHighWaterMark);
        return this;
    }

    @Override
    @Deprecated
    public EpollChannelConfig setWriteBufferLowWaterMark(int writeBufferLowWaterMark) {
        super.setWriteBufferLowWaterMark(writeBufferLowWaterMark);
        return this;
    }

    @Override
    public EpollChannelConfig setWriteBufferWaterMark(WriteBufferWaterMark writeBufferWaterMark) {
        super.setWriteBufferWaterMark(writeBufferWaterMark);
        return this;
    }

    @Override
    public EpollChannelConfig setMessageSizeEstimator(MessageSizeEstimator estimator) {
        super.setMessageSizeEstimator(estimator);
        return this;
    }

    @Override
    protected final void autoReadCleared() {
        ((AbstractEpollChannel) channel).clearEpollIn();
    }

    final void setMaxBytesPerGatheringWrite(long maxBytesPerGatheringWrite) {
        this.maxBytesPerGatheringWrite = maxBytesPerGatheringWrite;
    }

    final long getMaxBytesPerGatheringWrite() {
        return maxBytesPerGatheringWrite;
    }
}
