Hi, Is there any known real applications that use NIO for reading stuff with 4GB blocks?
Regards, 2006/7/25, Leo Li <[EMAIL PROTECTED]>:
2006/7/25, Jimmy, Jing Lv <[EMAIL PROTECTED]>: > > Hi: > > I find another platform-dependent operation > FileChannel.transforFrom(ReadableByteChannel src, long position, long > count) in java.nio.channels. RI behaves differently if the given count > is larger than Integer.MAX_VALUE: on windows, it throws an IOException; > on Linux, it return zero silently. It is clear that the difference is > caused by system call. Unfortunately Harmony fails to behave like RI as > its has the same native code using the port-lib. > If it is necessary to make Harmony behaving exactly like RI, I > suggest writing native code for transforFrom. This may be a > waste-of-effect as it is nearly the same except for this little > difference.However, currently people have few chances to use a size > larger than Integer.MAX_VALUE(nearly 4G, is it?), and system call does > not support long value to pass in. > > Another thing I'd like to mention is that it'll be great if we can > use testNG, or decide some other way to go. At least 2 testcases should > be written for different platform as I remember, including the one for > this problem. :) > > -- > > Best Regards! > > Jimmy, Jing Lv > China Software Development Lab, IBM > > --------------------------------------------------------------------- > Terms of use : http://incubator.apache.org/harmony/mailing.html > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > Dear Jimmy: As spec is not clear about how to deal with the argument greater than Integer.MAX_VALUE, maybe we shall look more closely at what RI does and how the system call behaves. I think it will be a good idea to let native code or even system call itself treat with such affairs, provided that Harmony will support some 64-bit platforms one day. Thus it may be not so wise to throw some exception in java code if encountering the data longer than 32-bits. Besides, whether we should behaves the same as RI, even if it is different on different platforms? :) -- Leo Li China Software Development Lab, IBM
-- Alexei Zakharov, Intel Middleware Product Division --------------------------------------------------------------------- Terms of use : http://incubator.apache.org/harmony/mailing.html To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
