POSIX select API (<sys/select.h>) More...

#include <zephyr/sys/fdtable.h>
#include <time.h>

Include dependency graph for select.h:

Data Structures
struct	sigset_t
	Type representing a set of signals (bitmask). More...

struct	timespec
	Time value with nanosecond resolution. More...

struct	timeval
	Time value with microsecond resolution. More...

Macros
#define	FD_SETSIZE ZVFS_FD_SETSIZE
	Maximum number of file descriptors in an fd_set.

#define	SIGRTMIN 32

#define	SIGRTMAX (SIGRTMIN + CONFIG_POSIX_RTSIG_MAX)
	Largest real-time signal number.

#define	_SIGSET_T_DECLARED

#define	__sigset_t_defined

#define	_SUSECONDS_T_DECLARED

#define	__suseconds_t_defined

#define	_TIMESPEC_DECLARED

#define	__timespec_defined

#define	_TIMEVAL_DECLARED

#define	__timeval_defined

Typedefs
typedef long	suseconds_t
	Microsecond time component type.

typedef struct zvfs_fd_set	fd_set
	Set of file descriptors for select()/pselect().

Functions
	BUILD_ASSERT (CONFIG_POSIX_RTSIG_MAX >=0)

int	pselect (int nfds, fd_set readfds, fd_set writefds, fd_set exceptfds, const struct timespec timeout, const sigset_t *sigmask)
	Synchronous multiplexed I/O with signal-mask and nanosecond timeout.

int	select (int nfds, fd_set readfds, fd_set writefds, fd_set errorfds, struct timeval timeout)
	Synchronous multiplexed I/O (legacy interface, use pselect() for new code).

void	FD_CLR (int fd, fd_set *fdset)
	Remove a file descriptor from an fd_set.

int	FD_ISSET (int fd, fd_set *fdset)
	Test whether a file descriptor is in an fd_set.

void	FD_SET (int fd, fd_set *fdset)
	Add a file descriptor to an fd_set.

void	FD_ZERO (fd_set *fdset)
	Clear all file descriptors from an fd_set.

Detailed Description

POSIX select API (<sys/select.h>)

Provides the select() and pselect() functions and the associated fd_set type and macros for multiplexed I/O.

See also: POSIX.1-2017 <sys/select.h>

Definition in file select.h.

Macro Definition Documentation

◆ __sigset_t_defined

#define __sigset_t_defined

Definition at line 50 of file select.h.

◆ __suseconds_t_defined

#define __suseconds_t_defined

Definition at line 57 of file select.h.

◆ __timespec_defined

#define __timespec_defined

Definition at line 73 of file select.h.

◆ __timeval_defined

#define __timeval_defined

Definition at line 84 of file select.h.

◆ _SIGSET_T_DECLARED

#define _SIGSET_T_DECLARED

Definition at line 49 of file select.h.

◆ _SUSECONDS_T_DECLARED

#define _SUSECONDS_T_DECLARED

Definition at line 56 of file select.h.

◆ _TIMESPEC_DECLARED

#define _TIMESPEC_DECLARED

Definition at line 72 of file select.h.

◆ _TIMEVAL_DECLARED

#define _TIMEVAL_DECLARED

Definition at line 83 of file select.h.

◆ SIGRTMIN

#define SIGRTMIN 32

Definition at line 35 of file select.h.

Data Structures

Macros

Typedefs

Functions