NAME

P_poll

SYNPOSIS

#include <libporty/net/network.h>

int P_poll (struct P_pollfd * fds , nfds_t nfds , int timeout );

Link with -lporty_net

DESCRIPTION

Portable interface to poll(2) with mathcing API.

On systems where poll(2) is available, libporty will use it directly through macros. Where poll(2) is not available but select(2) is, libporty falls back using a select() based implementation. On systems implementing neither poll or select, P_poll fails.

struct P_pollfd matches struct pollfd. Field events and revents in P_pollfd should be initialized with P_ prefixed constants: P_POLLIN, P_POLLPRI, P_POLLOUT, P_POLLERR, P_POLLHUP, P_POLLNVAL.

RETURN VALUE

Returns number of file descriptors changed or 0 on timeout or -1 on error.

P_poll 3porty	2011-04-14	libporty manual