2 Jun
2008
2 Jun
'08
4:21 p.m.
On Mon, 2008-06-02 at 18:13 +0200, rdxesy(a)yahoo.de wrote:
Now I just wait for an constant time (usleep) before I
check the input queue. Problem: if the time is too short, i
would have missed the answer, if I wait to long I waste
time.
My question is: how would I make sure to catch all answers
from the device without using a thread and without just
waiting for an constant time before I check if there is an
answer( which is alo not very fail save, a message might
take a little longer if there is traffic on the midibus)?
You /could/ use poll:
#include <poll.h>
int poll(struct pollfd *fds, nfds_t nfds, int timeout);
.. which will block, but at most untill timeout, after which you can
notify the user to check his wirings.
Thank you.
Jan
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