Problematic implementation of java.io.DataInputStream ?
Tue May 20 07:58:00 GMT 2003
On Mon, 2003-05-19 at 12:19, Michael Koch wrote:
> the class java.io.DataInputStream uses a little buffer called "buf" to
> make primitive read calls more efficient.
> The problem is that when two different threads call methods using this
> buffer the buffer may contain wrong data when one thread is
> interrupted between filling of the buffer and conversion of the
> primitive data type.
You could synchronize all methods that use the private byte buffer like
the Classpath code seems to do. But the behaviour of IO streams is
non-deterministic when multiple threads use the same stream without
using some kind of lock anyway. So I don't think we should worry about
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