select.h File Reference

#include <sys/socket.h>

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Classes
struct	fd_set
struct	timeval
struct	pollfd

Macros
#define	FD_SETSIZE   1024
#define	FD_ZERO(set)
#define	FD_SET(fd, set)
#define	FD_CLR(fd, set)
#define	FD_ISSET(fd, set)
#define	__timeval_defined   1
#define	_STRUCT_TIMEVAL   struct timeval
#define	POLLIN   0x0001
#define	POLLPRI   0x0002
#define	POLLOUT   0x0004
#define	POLLERR   0x0008
#define	POLLHUP   0x0010
#define	POLLNVAL   0x0020
#define	POLLRDNORM   0x0040
#define	POLLWRNORM   0x0100

Functions
int	select (int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout)
int	poll (struct pollfd *fds, unsigned long nfds, int timeout)

Macro Definition Documentation

__timeval_defined

#define __timeval_defined   1

_STRUCT_TIMEVAL

#define _STRUCT_TIMEVAL   struct timeval

FD_CLR

#define FD_CLR	(		fd,
			set )

Value:

    ((fd_set *)(set))->fds_bits[(fd) / (8 * sizeof(unsigned long))] \
        &= ~(1UL << ((fd) % (8 * sizeof(unsigned long))))

FD_ISSET

#define FD_ISSET	(		fd,
			set )

Value:

    (((fd_set *)(set))->fds_bits[(fd) / (8 * sizeof(unsigned long))] \
        & (1UL << ((fd) % (8 * sizeof(unsigned long)))))

FD_SET

#define FD_SET	(		fd,
			set )

Value:

    ((fd_set *)(set))->fds_bits[(fd) / (8 * sizeof(unsigned long))] \
        |= (1UL << ((fd) % (8 * sizeof(unsigned long))))

FD_SETSIZE

#define FD_SETSIZE   1024

FD_ZERO

#define FD_ZERO

(

set

)

Value:

    do { \
        unsigned int __i; \
        for (__i = 0; __i < sizeof(fd_set) / sizeof(unsigned long); __i++) \
            ((fd_set *)(set))->fds_bits[__i] = 0; \
    } while (0)

POLLERR

#define POLLERR   0x0008

POLLHUP

#define POLLHUP   0x0010

POLLIN

#define POLLIN   0x0001

POLLNVAL

#define POLLNVAL   0x0020

POLLOUT

#define POLLOUT   0x0004

POLLPRI

#define POLLPRI   0x0002

POLLRDNORM

#define POLLRDNORM   0x0040

POLLWRNORM

#define POLLWRNORM   0x0100

Function Documentation

poll()

int poll	(	struct pollfd *	fds,
		unsigned long	nfds,
		int	timeout )

select()

int select	(	int	nfds,
		fd_set *	readfds,
		fd_set *	writefds,
		fd_set *	exceptfds,
		struct timeval *	timeout )