22 ms·

> Sadly, there’s no > /dev/reads-and-writes-block-forever Maybe not in /dev/, but if you make two named pipes ("mkfifo") you can read from one and write to th

by Izkata 3y ago

> Sadly, there’s no > /dev/reads-and-writes-block-forever Maybe not in /dev/, but if you make two named pipes ("mkfifo") you can read from one and write to the other, and they'll block since nothing is attached to the other end. Not perfect, but possible.

hawski 3y ago
For read yes, but for writes it will not block until the pipe buffer is filled.
- Izkata 3y ago
  I did test it before posting and "echo 1 > fifo1" did block immediately. Unless the buffer is 1 byte, there seems to be a special case for this.
  - hawski 3y ago
    When you take a look with strace to see what is happening it blocks on 'openat' of the file. So it is not the same.