libosmocore
1.6.0
Osmocom core library
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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 <poll.h>
#include <sys/timerfd.h>
#include <sys/signalfd.h>
Data Structures | |
struct | poll_state |
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... | |
void | osmo_fd_update_when (struct osmo_fd *ofd, unsigned int when_mask, unsigned int when) |
Update the 'when' field of 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 unsigned int | poll_fill_fds (void) |
static int | poll_disp_fds (int n_fd) |
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... | |
void | osmo_select_shutdown_request () |
Request osmo_select_* to only service pending OSMO_FD_WRITE requests. More... | |
int | osmo_select_shutdown_requested () |
Return the number of times osmo_select_shutdown_request() was called before. More... | |
bool | osmo_select_shutdown_done () |
Return true after osmo_select_shutdown_requested() was called, and after an osmo_select poll loop found no more pending OSMO_FD_WRITE on any registered socket. More... | |
Variables | |
static __thread int | maxfd = 0 |
static __thread struct llist_head | osmo_fds |
static __thread int | unregistered_count |
static __thread struct poll_state | g_poll |
static int | _osmo_select_shutdown_requested = 0 |
See osmo_select_shutdown_request() More... | |
static bool | _osmo_select_shutdown_done = false |
See osmo_select_shutdown_request() More... | |
select filedescriptor handling.
Taken from: userspace logging daemon for the iptables ULOG target of the linux 2.4 netfilter subsystem.