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jdk.nio.channels.WritableByteChannel

A channel that can write bytes.

Only one write operation upon a writable channel may be in progress at any given time. If one thread initiates a write operation upon a channel then any other thread that attempts to initiate another write operation will block until the first operation is complete. Whether or not other kinds of I/O operations may proceed concurrently with a write operation depends upon the type of the channel.

A channel that can write bytes.

 Only one write operation upon a writable channel may be in progress at
any given time.  If one thread initiates a write operation upon a channel
then any other thread that attempts to initiate another write operation will
block until the first operation is complete.  Whether or not other kinds of
I/O operations may proceed concurrently with a write operation depends upon
the type of the channel.
raw docstring

writeclj

(write this src)

Writes a sequence of bytes to this channel from the given buffer.

An attempt is made to write up to r bytes to the channel, where r is the number of bytes remaining in the buffer, that is, src.remaining(), at the moment this method is invoked.

Suppose that a byte sequence of length n is written, where 0 <= n <= r. This byte sequence will be transferred from the buffer starting at index p, where p is the buffer's position at the moment this method is invoked; the index of the last byte written will be p + n - 1. Upon return the buffer's position will be equal to p + n; its limit will not have changed.

Unless otherwise specified, a write operation will return only after writing all of the r requested bytes. Some types of channels, depending upon their state, may write only some of the bytes or possibly none at all. A socket channel in non-blocking mode, for example, cannot write any more bytes than are free in the socket's output buffer.

This method may be invoked at any time. If another thread has already initiated a write operation upon this channel, however, then an invocation of this method will block until the first operation is complete.

src - The buffer from which bytes are to be retrieved - java.nio.ByteBuffer

returns: The number of bytes written, possibly zero - int

throws: java.nio.channels.NonWritableChannelException - If this channel was not opened for writing

Writes a sequence of bytes to this channel from the given buffer.

  An attempt is made to write up to r bytes to the channel,
 where r is the number of bytes remaining in the buffer, that is,
 src.remaining(), at the moment this method is invoked.

  Suppose that a byte sequence of length n is written, where
 0 <= n <= r.
 This byte sequence will be transferred from the buffer starting at index
 p, where p is the buffer's position at the moment this
 method is invoked; the index of the last byte written will be
 p + n - 1.
 Upon return the buffer's position will be equal to
 p + n; its limit will not have changed.

  Unless otherwise specified, a write operation will return only after
 writing all of the r requested bytes.  Some types of channels,
 depending upon their state, may write only some of the bytes or possibly
 none at all.  A socket channel in non-blocking mode, for example, cannot
 write any more bytes than are free in the socket's output buffer.

  This method may be invoked at any time.  If another thread has
 already initiated a write operation upon this channel, however, then an
 invocation of this method will block until the first operation is
 complete.

src - The buffer from which bytes are to be retrieved - `java.nio.ByteBuffer`

returns: The number of bytes written, possibly zero - `int`

throws: java.nio.channels.NonWritableChannelException - If this channel was not opened for writing
raw docstring

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