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jdk.io.BufferedInputStream

A BufferedInputStream adds functionality to another input stream-namely, the ability to buffer the input and to support the mark and reset methods. When the BufferedInputStream is created, an internal buffer array is created. As bytes from the stream are read or skipped, the internal buffer is refilled as necessary from the contained input stream, many bytes at a time. The mark operation remembers a point in the input stream and the reset operation causes all the bytes read since the most recent mark operation to be reread before new bytes are taken from the contained input stream.

A BufferedInputStream adds
functionality to another input stream-namely,
the ability to buffer the input and to
support the mark and reset
methods. When  the BufferedInputStream
is created, an internal buffer array is
created. As bytes  from the stream are read
or skipped, the internal buffer is refilled
as necessary  from the contained input stream,
many bytes at a time. The mark
operation  remembers a point in the input
stream and the reset operation
causes all the  bytes read since the most
recent mark operation to be
reread before new bytes are  taken from
the contained input stream.
raw docstring

->buffered-input-streamclj

(->buffered-input-stream in)
(->buffered-input-stream in size)

Constructor.

Creates a BufferedInputStream with the specified buffer size, and saves its argument, the input stream in, for later use. An internal buffer array of length size is created and stored in buf.

in - the underlying input stream. - java.io.InputStream size - the buffer size. - int

throws: java.lang.IllegalArgumentException - if size <= 0.

Constructor.

Creates a BufferedInputStream
 with the specified buffer size,
 and saves its  argument, the input stream
 in, for later use.  An internal
 buffer array of length  size
 is created and stored in buf.

in - the underlying input stream. - `java.io.InputStream`
size - the buffer size. - `int`

throws: java.lang.IllegalArgumentException - if size <= 0.
raw docstring

availableclj

(available this)

Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking by the next invocation of a method for this input stream. The next invocation might be the same thread or another thread. A single read or skip of this many bytes will not block, but may read or skip fewer bytes.

This method returns the sum of the number of bytes remaining to be read in the buffer (count - pos) and the result of calling the in.available().

returns: an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking. - int

throws: java.io.IOException - if this input stream has been closed by invoking its close() method, or an I/O error occurs.

Returns an estimate of the number of bytes that can be read (or
 skipped over) from this input stream without blocking by the next
 invocation of a method for this input stream. The next invocation might be
 the same thread or another thread.  A single read or skip of this
 many bytes will not block, but may read or skip fewer bytes.

 This method returns the sum of the number of bytes remaining to be read in
 the buffer (count - pos) and the result of calling the
 in.available().

returns: an estimate of the number of bytes that can be read (or skipped
             over) from this input stream without blocking. - `int`

throws: java.io.IOException - if this input stream has been closed by invoking its close() method, or an I/O error occurs.
raw docstring

closeclj

(close this)

Closes this input stream and releases any system resources associated with the stream. Once the stream has been closed, further read(), available(), reset(), or skip() invocations will throw an IOException. Closing a previously closed stream has no effect.

throws: java.io.IOException - if an I/O error occurs.

Closes this input stream and releases any system resources
 associated with the stream.
 Once the stream has been closed, further read(), available(), reset(),
 or skip() invocations will throw an IOException.
 Closing a previously closed stream has no effect.

throws: java.io.IOException - if an I/O error occurs.
raw docstring

markclj

(mark this readlimit)

See the general contract of the mark method of InputStream.

readlimit - the maximum limit of bytes that can be read before the mark position becomes invalid. - int

See the general contract of the mark
 method of InputStream.

readlimit - the maximum limit of bytes that can be read before the mark position becomes invalid. - `int`
raw docstring

mark-supportedclj

(mark-supported this)

Tests if this input stream supports the mark and reset methods. The markSupported method of BufferedInputStream returns true.

returns: a boolean indicating if this stream type supports the mark and reset methods. - boolean

Tests if this input stream supports the mark
 and reset methods. The markSupported
 method of BufferedInputStream returns
 true.

returns: a boolean indicating if this stream type supports
          the mark and reset methods. - `boolean`
raw docstring

readclj

(read this)
(read this b off len)

Reads bytes from this byte-input stream into the specified byte array, starting at the given offset.

This method implements the general contract of the corresponding read method of the InputStream class. As an additional convenience, it attempts to read as many bytes as possible by repeatedly invoking the read method of the underlying stream. This iterated read continues until one of the following conditions becomes true:

The specified number of bytes have been read,

The read method of the underlying stream returns

-1, indicating end-of-file, or

The available method of the underlying stream

returns zero, indicating that further input requests would block.

If the first read on the underlying stream returns -1 to indicate end-of-file then this method returns -1. Otherwise this method returns the number of bytes actually read.

Subclasses of this class are encouraged, but not required, to attempt to read as many bytes as possible in the same fashion.

b - destination buffer. - byte[] off - offset at which to start storing bytes. - int len - maximum number of bytes to read. - int

returns: the number of bytes read, or -1 if the end of the stream has been reached. - int

throws: java.io.IOException - if this input stream has been closed by invoking its close() method, or an I/O error occurs.

Reads bytes from this byte-input stream into the specified byte array,
 starting at the given offset.

  This method implements the general contract of the corresponding
 read method of
 the InputStream class.  As an additional
 convenience, it attempts to read as many bytes as possible by repeatedly
 invoking the read method of the underlying stream.  This
 iterated read continues until one of the following
 conditions becomes true:

    The specified number of bytes have been read,

    The read method of the underlying stream returns
   -1, indicating end-of-file, or

    The available method of the underlying stream
   returns zero, indicating that further input requests would block.

  If the first read on the underlying stream returns
 -1 to indicate end-of-file then this method returns
 -1.  Otherwise this method returns the number of bytes
 actually read.

  Subclasses of this class are encouraged, but not required, to
 attempt to read as many bytes as possible in the same fashion.

b - destination buffer. - `byte[]`
off - offset at which to start storing bytes. - `int`
len - maximum number of bytes to read. - `int`

returns: the number of bytes read, or -1 if the end of
             the stream has been reached. - `int`

throws: java.io.IOException - if this input stream has been closed by invoking its close() method, or an I/O error occurs.
raw docstring

resetclj

(reset this)

See the general contract of the reset method of InputStream.

If markpos is -1 (no mark has been set or the mark has been invalidated), an IOException is thrown. Otherwise, pos is set equal to markpos.

throws: java.io.IOException - if this stream has not been marked or, if the mark has been invalidated, or the stream has been closed by invoking its close() method, or an I/O error occurs.

See the general contract of the reset
 method of InputStream.

 If markpos is -1
 (no mark has been set or the mark has been
 invalidated), an IOException
 is thrown. Otherwise, pos is
 set equal to markpos.

throws: java.io.IOException - if this stream has not been marked or, if the mark has been invalidated, or the stream has been closed by invoking its close() method, or an I/O error occurs.
raw docstring

skipclj

(skip this n)

See the general contract of the skip method of InputStream.

n - the number of bytes to be skipped. - long

returns: the actual number of bytes skipped. - long

throws: java.io.IOException - if the stream does not support seek, or if this input stream has been closed by invoking its close() method, or an I/O error occurs.

See the general contract of the skip
 method of InputStream.

n - the number of bytes to be skipped. - `long`

returns: the actual number of bytes skipped. - `long`

throws: java.io.IOException - if the stream does not support seek, or if this input stream has been closed by invoking its close() method, or an I/O error occurs.
raw docstring

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