long read(FileDescriptor fd, ByteBuffer[] bufs, int offset, int length) throws IOException {
long totalRead = 0;
try
{
for (int i = offset; i < offset + length; i++)
{
int size = bufs[i].remaining();
if (size > 0)
{
int read = IOUtil.read(fd, bufs[i], -1, this, this);
if (read < 0)
{
break;
}
totalRead += read;
if (read < size || fd.available() == 0)
{
break;
}
}
}
}
catch (IOException x)
{
if (totalRead == 0)
{
throw x;
}
}
return totalRead;
}
