Select loop abstraction

Data Structures
struct	osmo_fd
	Structure representing a file dsecriptor. More...
Files
file	select.h
	select loop abstraction
file	select.c
	select loop abstraction
Functions
int	osmo_fd_register (struct osmo_fd *fd)
	Register a new file descriptor with select loop abstraction.
void	osmo_fd_unregister (struct osmo_fd *fd)
	Unregister a file descriptor from select loop abstraction.
int	osmo_select_main (int polling)
	select main loop integration
static	LLIST_HEAD (osmo_fds)
Variables
int	osmo_fd::fd
unsigned int	osmo_fd::when
int(*	osmo_fd::cb )(struct osmo_fd *fd, unsigned int what)
void *	osmo_fd::data
unsigned int	osmo_fd::priv_nr
static int	maxfd = 0
static int	unregistered_count

---

Function Documentation

int osmo_fd_register

(

struct osmo_fd *

fd

)

Register a new file descriptor with select loop abstraction.

Parameters:

[in]

fd

osmocom file descriptor to be registered

References osmo_fd::fd, and osmo_fd::list.

Referenced by gsmtap_source_add_sink(), gsmtap_source_init(), and osmo_sock_init_ofd().

void osmo_fd_unregister

(

struct osmo_fd *

fd

)

Unregister a file descriptor from select loop abstraction.

Parameters:

[in]

fd

osmocom file descriptor to be unregistered

References osmo_fd::list.

int osmo_select_main

(

int

polling

)

select main loop integration

Parameters:

[in]

polling

should we pollonly (1) or block on select (0)

References osmo_fd::cb, osmo_fd::fd, and osmo_fd::when.

---

Variable Documentation

int(* osmo_fd::cb)(struct osmo_fd *fd, unsigned int what)

call-back function to be called once file descriptor becomes available

Referenced by gsmtap_source_add_sink(), osmo_select_main(), and osmo_wqueue_init().

void* osmo_fd::data

data pointer passed through to call-back function

int osmo_fd::fd

actual operating-system level file decriptor

Referenced by gsmtap_inst_fd(), gsmtap_source_add_sink(), gsmtap_source_init(), osmo_fd_register(), osmo_select_main(), and osmo_sock_init_ofd().

unsigned int osmo_fd::priv_nr

private number, extending data

unsigned int osmo_fd::when

bit-mask or of BSC_FD_READ, BSC_FD_WRITE and/or BSC_FD_EXCEPT

Referenced by gsmtap_source_add_sink(), osmo_select_main(), osmo_sock_init_ofd(), osmo_wqueue_bfd_cb(), osmo_wqueue_clear(), and osmo_wqueue_enqueue().