poller_libevent.c File Reference

#include <event2/event.h>
#include <event2/thread.h>
#include <stdlib.h>
#include <semaphore.h>
#include "poller.h"
#include "log.h"
#include "low.h"

Data Structures
struct	onion_poller_t
	Manages the polling on a set of file descriptors. More...
struct	onion_poller_slot_t
	Data about a poller element: timeout, function to call shutdown function.

Typedefs
typedef struct onion_poller_slot_t	onion_poller_slot

Functions
onion_poller_slot *	onion_poller_slot_new (int fd, int(*f)(void *), void *data)
	Create a new slot for the poller.
void	onion_poller_slot_free (onion_poller_slot *el)
	Cleans a poller slot. Do not call if already on the poller (onion_poller_add). Use onion_poller_remove instead.
void	onion_poller_slot_set_shutdown (onion_poller_slot *el, void(*shutdown)(void *), void *data)
	Sets the shutdown function for this poller slot.
void	onion_poller_slot_set_timeout (onion_poller_slot *el, int timeout_ms)
	Sets the timeout for this slot. Current implementation takes ms, but then it rounds to seconds.
void	onion_poller_slot_set_type (onion_poller_slot *el, int type)
	Sets the polling type: read/write/other. O_POLL_READ | O_POLL_WRITE | O_POLL_OTHER.
onion_poller *	onion_poller_new (int aprox_n)
	Create a new poller.
void	onion_poller_free (onion_poller *p)
	Frees the poller. It first stops it.
int	onion_poller_add (onion_poller *poller, onion_poller_slot *el)
	Adds a slot to the poller.
int	onion_poller_remove (onion_poller *poller, int fd)
	Removes a fd from the poller.
onion_poller_slot *	onion_poller_get (onion_poller *poller, int fd)
	Gets the poller to do some modifications as change shutdown.
void	onion_poller_poll (onion_poller *poller)
	Do the polling. If on several threads, this is done in every thread.
void	onion_poller_stop (onion_poller *poller)
	Stops the polling. This only marks the flag, and should be cancelled with pthread_cancel.
void	onion_poller_set_queue_size_per_thread (onion_poller *poller, size_t count)
	Sets the max events per thread queue size.

Typedef Documentation

typedef struct onion_poller_slot_t onion_poller_slot

Function Documentation

int onion_poller_add	(	onion_poller *	poller,
		onion_poller_slot *	el
	)

Adds a slot to the poller.

References onion_poller_t::base.

void onion_poller_free

(

onion_poller *

p

)

Frees the poller. It first stops it.

References onion_poller_t::base, and onion_low_free().

onion_poller* onion_poller_new

(

int

aprox_n

)

Create a new poller.

References onion_poller_t::base, onion_low_calloc(), and onion_poller_t::sem.

void onion_poller_poll

(

onion_poller *

poller

)

Do the polling. If on several threads, this is done in every thread.

References onion_poller_t::base, onion_poller_t::sem, and onion_poller_t::stop.

int onion_poller_remove	(	onion_poller *	poller,
		int	fd
	)

Removes a fd from the poller.

References ONION_ERROR.

void onion_poller_slot_free

(

onion_poller_slot *

el

)

Cleans a poller slot. Do not call if already on the poller (onion_poller_add). Use onion_poller_remove instead.

onion_poller_slot* onion_poller_slot_new	(	int	fd,
		int(*)(void *)	f,
		void *	data
	)

Create a new slot for the poller.

References onion_low_calloc().

void onion_poller_slot_set_shutdown	(	onion_poller_slot *	el,
		void(*)(void *)	shutdown,
		void *	data
	)

Sets the shutdown function for this poller slot.

void onion_poller_slot_set_timeout	(	onion_poller_slot *	el,
		int	timeout_ms
	)

Sets the timeout for this slot. Current implementation takes ms, but then it rounds to seconds.

void onion_poller_slot_set_type	(	onion_poller_slot *	el,
		int	type
	)

Sets the polling type: read/write/other. O_POLL_READ | O_POLL_WRITE | O_POLL_OTHER.

References O_POLL_READ, and O_POLL_WRITE.

void onion_poller_stop

(

onion_poller *

poller

)

Stops the polling. This only marks the flag, and should be cancelled with pthread_cancel.

References onion_poller_t::base, and onion_poller_t::stop.