Stdout and tail

lars_kirchhoff Joined: 05/27/08 Posts: 59

Posted: 07/27/08 16:46:39 Hello, I've just a weird behaviour, which I don't understand. I use Stdout to create a log file of a program. If I run the program I can see the messages on the console. But if I pipe the console messages into a file and then use tail -f to follow the messages, it takes ages until the messages are written into the file. I run a programm that needs about 25 minutes to calculate and I can't follow the output. It is displayed in big chunks after a while and after the program is stopped. Is there anything I need to configure? Is there anything I can do about it? thanks /lars Some thoughts about switching from PHP to D: http://www.lars-kirchhoff.de/go/journal/section/from-php-to-d/

Author	Message
schveiguy Joined: 08/02/07 Posts: 128	Posted: 07/27/08 19:22:07 Stdout and Cout detect when they are redirected to a file. On those occasions, to optimize output, they do not flush on newline automatically. You can override this by setting it explicitly at the beginning of the program with: Stdout.flush = true; And I think Cout is done with: Cout.redirected = false; They are separate flags, so if you use both, you must change both. -Steve
lars_kirchhoff Joined: 05/27/08 Posts: 59	Posted: 07/28/08 08:49:48 Thank you very much Steve.. /lars Some thoughts about switching from PHP to D: http://www.lars-kirchhoff.de/go/journal/section/from-php-to-d/