poll.h File Reference

#include <stdint.h>

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Data Structures
struct	pollfd

Macros
#define	POLLIN   1
#define	POLLOUT   4
#define	POLLNVAL   32

Typedefs
typedef uint32_t	nfds_t

Functions
int	poll (struct pollfd *fds, nfds_t nfds, int timeout)
	Wait for one of a set of file descriptors to become ready to perform I/O. More...

Function Documentation

poll()

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

Wait for one of a set of file descriptors to become ready to perform I/O.

Parameters

fds	A set of file descriptors with events to wait.
nfds	Number of the provided fds.
timeout	The number of milliseconds that poll() should block waiting for a file descriptor to become ready. Negative value means an infinite timeout and zero causes poll() to return immediately.

Return values

int	0 on success and nonzero error number on error.