[PLUG] Weird Output of a C program in Linux

Aditya Godbole aag.lists at gmail.com
Tue Jul 17 12:44:27 PDT 2007


On 7/17/07, Pranav Peshwe <pranavpeshwe at gmail.com> wrote:

>
> IMHO, it does send the data to the buffer. Due to the fork, the new
> task(child) gets a copy of the buffer (which already contains the 'Hello
> World!' string). This(fork()) is where the duplication occurs. Further
> printfs in the two tasks lead to flushing of their respective buffers to the
> console. With a '\n' after 'Hello World!', the child would get an empty
> buffer to begin with.
>

Yeah, thats right. The buffer is filled but not flushed. After the
fork, the entire address space (and hence the buffer) gets replicated
and is flushed after the second the printf in both processes.

-aditya



More information about the plug-mail mailing list