variable 'timeout' on function poll()

kattythebest · 09-09-2009, 02:21 AM

Hi folks,

Can anybody tell me output/return value of function poll() when the variable 'timeout' is negative

int poll(struct pollfd *fds, nfds_t nfds, int timeout);

alexroux · 09-09-2009, 03:10 AM

From man page:

Quote:

The timeout argument specifies an upper limit on the time for which poll() will block, in milliseconds. Specifying a
negative value in timeout means an infinite timeout.

In a general way, the behavior of each POSIX or GNU/Linux primitive is detailed in the man pages. Always take a look at them before looking further on the web.