/**
* Closes this input stream and releases any system resources associated with the stream.
*
* @exception IOException if an I/O error occurs.
*/
public void close() throws IOException {
if (in == null) return;
try {
if (master) sf.forceClose();
else sf.close();
} finally {
sf = null;
in = null;
buf = null;
}
}
private void init(SharedFile sf, int size) throws IOException {
this.sf = sf;
this.in = sf.open();
this.start = 0;
this.datalen = in.length(); // XXX - file can't grow
this.bufsize = size;
buf = new byte[size];
}
/** Used internally by the <code>newStream</code> method. */
private SharedFileInputStream(SharedFile sf, long start, long len, int bufsize) {
super(null);
this.master = false;
this.sf = sf;
this.in = sf.open();
this.start = start;
this.bufpos = start;
this.datalen = len;
this.bufsize = bufsize;
buf = new byte[bufsize];
}