Java ByteBuffer Write writeFromBuffer(SocketChannel channel, ByteBuffer buf, int sleepMsecs)

Description

write From Buffer

License

BSD License

Declaration

static public int writeFromBuffer(SocketChannel channel, ByteBuffer buf, int sleepMsecs) 

Method Source Code

//package com.java2s;
//License from project: BSD License 

import java.io.*;
import java.nio.*;
import java.nio.channels.*;

public class Main {
    static public int writeFromBuffer(SocketChannel channel, ByteBuffer buf, int sleepMsecs) {

        if (channel == null || buf.limit() == 0) {
            return -1;
        }/*from w ww  .  j ava  2  s  .com*/

        int totWritten = 0;
        buf.rewind();

        // write until capacity reached

        while (totWritten < buf.limit()) {

            int nWritten;
            try {
                nWritten = channel.write(buf);
            } catch (IOException e) {
                System.err.println("ERROR - NioUtils.writeFromBuffer");
                System.err.println(" Writing buffer to channel");
                return -1;
            } catch (BufferOverflowException e) {
                System.err.println("ERROR - NioUtils.writeFromBuffer");
                System.err.println("  Buffer overflow");
                return -1;
            }
            if (nWritten < 0) {
                return -1;
            }
            totWritten += nWritten;

            // sleep if stalled

            if (nWritten == sleepMsecs) {
                _sleep(10);
            }
        }

        // rewind buffer, in case it will be reused

        buf.rewind();

        return 0;

    }

    static private void _sleep(int msecs) {

        Thread t = Thread.currentThread();
        try {
            t.sleep(msecs);
        } catch (InterruptedException e) {
        }

    }
}

Related

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2. writeFile(File file, ByteBuffer bb)
3. writeFile(File file, ByteBuffer buffer)
4. writeFileFragment(FileChannel fc, long pos, ByteBuffer fragment)
5. writeFloat(ByteBuffer buffer, float f)
6. writeFully(@Nonnull final FileChannel dst, @Nonnull final ByteBuffer src, @Nonnegative final long position)
7. writeFully(ByteBuffer buf, WritableByteChannel out)
8. writeFully(ByteBuffer buffer, WritableByteChannel channel)
9. writeFully(FileChannel channel, ByteBuffer fileInfosBuffer)