We have two tasks today. Both with practicing nonblocking IO.

1. Canonical mode

Goal: To write a program which echoes characters on screen while typed until button 'q' is pressed. Then prints a newline.

Methods: try to put the terminal into noncanonical mode. See 'man termios'. Note that you should restore the terminal mode before quitting since otherwise the terminal gets messed up.

2. Nonblocking reading from a FIFO

Goal: To write a program which prints a '.' character every half-a second unless some input is provided on a fifo file.

Hints: Use open() with O_NONBLOCK flag, fifo can be made with a 'mkfifo fifoname' command and written to using 'cat > fifoname'.

Nonblocking IO (ITI8510)

1. Canonical mode

2. Nonblocking reading from a FIFO

Navigeerimismenüü

Nonblocking IO (ITI8510)

1. Canonical mode

2. Nonblocking reading from a FIFO

Navigeerimismenüü

Otsing