Thanks for this. Your right about this idea. I will check it out.
René Op 18 mei 2010, om 22:34 heeft Alastair Houghton het volgende geschreven: > On 18 May 2010, at 20:33, appledev wrote: > >> [task launch]; >> >> [task waitUntilExit]; >> >> NSData *data; >> result = [file readDataToEndOfFile]; > > This part is not safe. If the tasks output enough data to fill the pipe > buffer (which may be of whatever size the kernel chooses to make it), then > your program will hang on the -waitUntilExit line. > > You should instead do something like > > NSMutableData *result = [NSMutableData data]; > NSData *chunk; > > while ((chunk = [file availableData]) && [chunk length]) > [result appendData:chunk]; > > [task waitUntilExit]; > > There are obviously variations on that; if you can process the data as you > go, that may be a better way to do it (but it's a bit complicated to do > because there's no guarantee that the chunks you read won't straddle > individual multi-byte characters). > > Kind regards, > > Alastair. > > -- > http://alastairs-place.net > > > > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
