On 15 Aug, 14:52, Bronson wrote:

> i would like to do console application, and after execution it would
> create a thread, while in the main one it would read one character
> from std input, and if it would be equal 'q', it would quit. I would
> like also it to be able to break stdin reading loop, when other thread
> send some signal to the main thread. I don't know if it is possible?
> For example the newly created thread could make some kind of a
> descriptor (i don't know if pipes are applicable here...)and the main
> thread would make select on this descriptor and stdin descriptor in
> the loop.

The main thread can wait for events on several file descriptors using
select() (http://en.wikipedia.org/wiki/Event_loop#File_interface).

One of the file descriptors can be STDIN_FILENO (stdin), the other
descriptor can be the read end of a pipe (see man pipe) or a unix
local socket (unix datagram socket is the simplest, see man
socketpair). The other thread can use that datagram socket to
communicate messages to the main thread. The select() call returns
when any of these file descriptors become ready for reading, so that
waiting on stdin does not block receiving messages from the other
thread.