/**
* Translates data from $source to an output file without changes
*
* @param Yamdi_InputStream $source
* @param int $fromPosition
*/
public function passthrough(Yamdi_InputStream $source, $fromPosition, $size = null)
{
$source->seek($fromPosition);
if (null === $size) {
while ($data = $source->read($this->passthrough_chunk_size)) {
$this->write($data);
}
} else {
$this->write($source->read($size));
}
}
public function testRead()
{
$stream = new Yamdi_InputStream($this->testFileName);
$this->assertEqual($stream->getPosition(), 0);
$this->assertFalse($stream->isEnd());
$bytes = $stream->read(3);
$this->assertEqual($bytes, '123');
$this->assertEqual($stream->getPosition(), 3);
$this->assertEqual($bytes, '123');
$this->assertFalse($stream->isEnd());
$stream->seek(+2);
$this->assertEqual($stream->getPosition(), 5);
$this->assertFalse($stream->isEnd());
$bytes = $stream->read(1);
$this->assertEqual($bytes, 'c');
$this->assertEqual($stream->getPosition(), 6);
$this->assertFalse($stream->isEnd());
/* trying to read beyont the eof */
$bytes = $stream->read(2);
$this->assertTrue($stream->isEnd());
// end of file is reached
$this->assertEqual($stream->getPosition(), 6);
// position is not changed
$this->assertEqual($bytes, '');
// void is read
$stream->close();
}
public function read(Yamdi_InputStream $stream)
{
if ($stream->isEnd()) {
return false;
}
$content = $stream->read($this->calculateSize());
if ($content === false || $content == '') {
return false;
} else {
return $this->unpack($content);
}
}
public function readTagBodyBytes(Yamdi_InputStream $stream, $count)
{
$this->bodyBytesRead += $count;
return $stream->read($count);
}
