select.c File Reference

select filedescriptor handling. More...

#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdbool.h>
#include <errno.h>
#include <osmocom/core/select.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/timer.h>
#include <osmocom/core/logging.h>
#include <osmocom/core/talloc.h>
#include <osmocom/core/utils.h>
#include "../config.h"
#include <sys/select.h>
#include <sys/timerfd.h>
#include <sys/signalfd.h>

Functions
void	osmo_fd_setup (struct osmo_fd *ofd, int fd, unsigned int when, int(*cb)(struct osmo_fd *fd, unsigned int what), void *data, unsigned int priv_nr)
	Set up an osmo-fd. More...
bool	osmo_fd_is_registered (struct osmo_fd *fd)
	Check if a file descriptor is already registered. More...
int	osmo_fd_register (struct osmo_fd *fd)
	Register a new file descriptor with select loop abstraction. More...
void	osmo_fd_unregister (struct osmo_fd *fd)
	Unregister a file descriptor from select loop abstraction. More...
void	osmo_fd_close (struct osmo_fd *fd)
	Close a file descriptor, mark it as closed + unregister from select loop abstraction. More...
int	osmo_fd_fill_fds (void *_rset, void *_wset, void *_eset)
	Populate the fd_sets and return the highest fd number. More...
int	osmo_fd_disp_fds (void *readset, void *writeset, void *exceptset)
static int	_osmo_select_main (int polling)
int	osmo_select_main (int polling)
	select main loop integration More...
int	osmo_select_main_ctx (int polling)
	select main loop integration with temporary select-dispatch talloc context More...
struct osmo_fd *	osmo_fd_get_by_fd (int fd)
	find an osmo_fd based on the integer fd More...
void	osmo_select_init (void)
	initialize the osmocom select abstraction for the current thread More...
static	__attribute__ ((constructor))
int	osmo_timerfd_disable (struct osmo_fd *ofd)
	disable the osmocom-wrapped timerfd More...
int	osmo_timerfd_schedule (struct osmo_fd *ofd, const struct timespec *first, const struct timespec *interval)
	schedule the osmocom-wrapped timerfd to occur first at first, then periodically at interval More...
int	osmo_timerfd_setup (struct osmo_fd *ofd, int(*cb)(struct osmo_fd *, unsigned int), void *data)
	setup osmocom-wrapped timerfd More...
static int	signalfd_callback (struct osmo_fd *ofd, unsigned int what)
struct osmo_signalfd *	osmo_signalfd_setup (void *ctx, sigset_t set, osmo_signalfd_cb *cb, void *data)
	create a signalfd and register it with osmocom select loop. More...

Variables
static __thread int	maxfd = 0
static __thread struct llist_head	osmo_fds
static __thread int	unregistered_count

Detailed Description

select filedescriptor handling.

Taken from: userspace logging daemon for the iptables ULOG target of the linux 2.4 netfilter subsystem.