Examples with ByteArray net.i2p.data.ByteArray used on opensource projects

Example 51 with ByteArray

use of net.i2p.data.ByteArray in project i2p.i2p by i2p.

the class BasicServlet method copy.

/**
 *  Write from in to out
 */
private void copy(InputStream in, long skip, OutputStream out, final long len) throws IOException {
    ByteArray ba = _cache.acquire();
    byte[] buf = ba.getData();
    try {
        if (skip > 0)
            DataHelper.skip(in, skip);
        int read = 0;
        long tot = 0;
        boolean done = false;
        while ((read = in.read(buf)) != -1 && !done) {
            if (len >= 0) {
                tot += read;
                if (tot >= len) {
                    read -= (int) (tot - len);
                    done = true;
                }
            }
            out.write(buf, 0, read);
        }
    } finally {
        _cache.release(ba, false);
        if (in != null)
            try {
                in.close();
            } catch (IOException ioe) {
            }
        if (out != null)
            try {
                out.close();
            } catch (IOException ioe) {
            }
    }
}

Example 52 with ByteArray

use of net.i2p.data.ByteArray in project i2p.i2p by i2p.

the class ByteCache method acquire.

/**
 * Get the next available structure, either from the cache or a brand new one.
 * Returned ByteArray will have valid = 0 and offset = 0.
 * Returned ByteArray may or may not be zero, depends on whether
 * release(ba) or release(ba, false) was called.
 * Which is a problem, you should really specify shouldZero on acquire, not release.
 */
public final ByteArray acquire() {
    if (_cache) {
        ByteArray rv = _available.poll();
        if (rv != null)
            return rv;
    }
    _lastOverflow = System.currentTimeMillis();
    byte[] data = new byte[_entrySize];
    ByteArray rv = new ByteArray(data);
    rv.setValid(0);
    // rv.setOffset(0);
    return rv;
}

Example 53 with ByteArray

use of net.i2p.data.ByteArray in project i2p.i2p by i2p.

the class PartialPiece method read.

/**
 *  Blocking.
 *  If offset matches the previous downloaded amount
 *  (as set by a previous call to read() or setDownlaoded()),
 *  the downloaded amount will be incremented by len.
 *
 *  @since 0.9.1
 */
public void read(DataInputStream din, int offset, int len) throws IOException {
    if (bs != null) {
        din.readFully(bs, offset, len);
        synchronized (this) {
            // only works for in-order chunks
            if (this.off == offset)
                this.off += len;
        }
    } else {
        // read in fully before synching on raf
        ByteArray ba;
        byte[] tmp;
        if (len == BUFSIZE) {
            ba = _cache.acquire();
            tmp = ba.getData();
        } else {
            ba = null;
            tmp = new byte[len];
        }
        din.readFully(tmp);
        synchronized (this) {
            if (raf == null)
                createTemp();
            raf.seek(offset);
            raf.write(tmp);
            // only works for in-order chunks
            if (this.off == offset)
                this.off += len;
        }
        if (ba != null)
            _cache.release(ba, false);
    }
}