amxrt_el_libevent.c File Reference

#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <event2/event.h>
#include <amxrt/amxrt.h>
#include "amxrt_priv.h"

Go to the source code of this file.

Data Structures
struct	_el_data

Typedefs
typedef struct _el_data	el_data_t

Functions
static void	amxrt_el_free_event_source (amxc_llist_it_t *it)
static void	amxrt_el_add_event_source (struct event *source, amxp_connection_t *con)
static void	amxrt_el_signal_cb (UNUSED evutil_socket_t fd, UNUSED short event, UNUSED void *arg)
static void	amxrt_el_signal_timers (UNUSED evutil_socket_t fd, UNUSED short event, UNUSED void *arg)
static void	amxrt_el_connection_read_cb (UNUSED evutil_socket_t fd, UNUSED short flags, void *arg)
static void	amxrt_el_connection_can_write_cb (UNUSED evutil_socket_t fd, UNUSED short flags, void *arg)
static void	amxrt_el_amxp_signal_read_cb (UNUSED evutil_socket_t fd, UNUSED short flags, UNUSED void *arg)
static void	amxrt_el_amxp_syssignal_read_cb (UNUSED evutil_socket_t fd, UNUSED short flags, UNUSED void *arg)
static void	amxrt_el_slot_add_fd (UNUSED const char *const sig_name, const amxc_var_t *const data, UNUSED void *const priv)
static void	amxrt_el_slot_wait_write_fd (UNUSED const char *const sig_name, const amxc_var_t *const data, UNUSED void *const priv)
static void	amxrt_el_slot_remove_fd (UNUSED const char *const sig_name, const amxc_var_t *const data, UNUSED void *const priv)
static void	amxrt_el_add_read_fd (amxc_llist_t *connections)
static void	amxrt_el_remove_fd (amxc_llist_t *connections)
amxp_connection_t *	amxrt_el_get_connection (amxc_llist_t *cons, int fd)
int	amxrt_el_create (void)
	Creates and initializes all needed event loop components. More...
int	amxrt_el_start (void)
	Starts the event loop. More...
int	amxrt_el_stop (void)
	Stops the event loop. More...
int	amxrt_el_destroy (void)
	Cleans-up the event loop components. More...

Variables
static struct event_base *	base = NULL

Typedef Documentation

el_data_t

typedef struct _el_data el_data_t

Function Documentation

amxrt_el_add_event_source()

static void amxrt_el_add_event_source ( struct event *  source, amxp_connection_t *  con  )

static

Definition at line 86 of file amxrt_el_libevent.c.

                                                                                    {
    amxrt_t* rt = amxrt_get();
    el_data_t* el_data = (el_data_t*) calloc(1, sizeof(el_data_t));
    el_data->read = source;
    event_add(source, NULL);
 
    if(con != NULL) {
        con->el_data = el_data;
    }
 
    amxc_llist_append(&rt->event_sources, &el_data->it);
}

amxrt_el_add_read_fd()

static void amxrt_el_add_read_fd ( amxc_llist_t *  connections )

static

Definition at line 219 of file amxrt_el_libevent.c.

                                                            {
    struct event* source = NULL;
 
    amxc_llist_for_each(it, connections) {
        amxp_connection_t* con = amxc_llist_it_get_data(it, amxp_connection_t, it);
        source = event_new(base, con->fd, EV_READ | EV_PERSIST, amxrt_el_connection_read_cb, con);
        amxrt_el_add_event_source(source, con);
    }
}

amxrt_el_amxp_signal_read_cb()

static void amxrt_el_amxp_signal_read_cb ( UNUSED evutil_socket_t  fd, UNUSED short  flags, UNUSED void *  arg  )

static

Definition at line 134 of file amxrt_el_libevent.c.

                                                           {
    amxp_signal_read();
}

amxrt_el_amxp_syssignal_read_cb()

static void amxrt_el_amxp_syssignal_read_cb ( UNUSED evutil_socket_t  fd, UNUSED short  flags, UNUSED void *  arg  )

static

Definition at line 140 of file amxrt_el_libevent.c.

                                                              {
    amxp_syssig_read();
}

amxrt_el_connection_can_write_cb()

static void amxrt_el_connection_can_write_cb ( UNUSED evutil_socket_t  fd, UNUSED short  flags, void *  arg  )

static

Definition at line 119 of file amxrt_el_libevent.c.

                                                        {
    amxp_connection_t* con = (amxp_connection_t*) arg;
    el_data_t* el_data = (el_data_t*) con->el_data;
    amxo_fd_cb_t cb = con->can_write;
 
    con->can_write = NULL;
    event_del(el_data->can_write);
    free(el_data->can_write);
    el_data->can_write = NULL;
 
    cb(fd, con->priv);
}

amxrt_el_connection_read_cb()

static void amxrt_el_connection_read_cb ( UNUSED evutil_socket_t  fd, UNUSED short  flags, void *  arg  )

static

Definition at line 112 of file amxrt_el_libevent.c.

                                                   {
    amxp_connection_t* con = (amxp_connection_t*) arg;
    con->reader(fd, con->priv);
}

amxrt_el_free_event_source()

static void amxrt_el_free_event_source ( amxc_llist_it_t *  it )

static

Definition at line 72 of file amxrt_el_libevent.c.

                                                            {
    el_data_t* el_data = amxc_container_of(it, el_data_t, it);
    if(el_data->read != NULL) {
        event_del(el_data->read);
        free(el_data->read);
    }
    if(el_data->can_write != NULL) {
        event_del(el_data->can_write);
        free(el_data->can_write);
    }
 
    free(el_data);
}

amxrt_el_get_connection()

amxp_connection_t* amxrt_el_get_connection	(	amxc_llist_t *	cons,
		int	fd
	)

Definition at line 240 of file amxrt_el_libevent.c.

                                                                       {
    amxp_connection_t* con = NULL;
    amxc_llist_for_each(it, cons) {
        con = amxc_llist_it_get_data(it, amxp_connection_t, it);
        if(con->fd == fd) {
            break;
        }
        con = NULL;
    }
 
    return con;
}

amxrt_el_remove_fd()

static void amxrt_el_remove_fd ( amxc_llist_t *  connections )

static

Definition at line 229 of file amxrt_el_libevent.c.

                                                          {
    amxc_llist_for_each(it, connections) {
        amxp_connection_t* con = amxc_llist_it_get_data(it, amxp_connection_t, it);
        el_data_t* el_data = (el_data_t*) con->el_data;
        if(el_data != NULL) {
            amxc_llist_it_clean(&el_data->it, amxrt_el_free_event_source);
        }
        con->el_data = NULL;
    }
}

amxrt_el_signal_cb()

static void amxrt_el_signal_cb ( UNUSED evutil_socket_t  fd, UNUSED short  event, UNUSED void *  arg  )

static

Definition at line 99 of file amxrt_el_libevent.c.

                                                 {
    amxrt_el_stop();
}

amxrt_el_signal_timers()

static void amxrt_el_signal_timers ( UNUSED evutil_socket_t  fd, UNUSED short  event, UNUSED void *  arg  )

static

Definition at line 105 of file amxrt_el_libevent.c.

                                                     {
    amxp_timers_calculate();
    amxp_timers_check();
}

amxrt_el_slot_add_fd()

static void amxrt_el_slot_add_fd ( UNUSED const char *const  sig_name, const amxc_var_t *const  data, UNUSED void *const  priv  )

static

Definition at line 146 of file amxrt_el_libevent.c.

                                                          {
    amxp_connection_t* con = NULL;
    struct event* source = NULL;
 
    when_true(amxc_var_type_of(data) != AMXC_VAR_ID_FD, leave);
 
    con = amxp_connection_get(amxc_var_constcast(fd_t, data));
    when_null(con, leave);
 
    source = event_new(base, con->fd, EV_READ | EV_PERSIST, amxrt_el_connection_read_cb, con);
    amxrt_el_add_event_source(source, con);
 
leave:
    return;
}

amxrt_el_slot_remove_fd()

static void amxrt_el_slot_remove_fd ( UNUSED const char *const  sig_name, const amxc_var_t *const  data, UNUSED void *const  priv  )

static

Definition at line 192 of file amxrt_el_libevent.c.

                                                             {
    amxc_llist_t* connections = amxp_connection_get_connections();
    amxp_connection_t* con = NULL;
 
    when_true(amxc_var_type_of(data) != AMXC_VAR_ID_FD, leave);
 
    con = amxrt_el_get_connection(connections, amxc_var_constcast(fd_t, data));
    if(con == NULL) {
        connections = amxp_connection_get_listeners();
        con = amxrt_el_get_connection(connections, amxc_var_constcast(fd_t, data));
    }
    when_null(con, leave);
 
    if(con->el_data != NULL) {
        el_data_t* el_data = (el_data_t*) con->el_data;
        if(el_data != NULL) {
            amxc_llist_it_clean(&el_data->it, amxrt_el_free_event_source);
        }
        con->el_data = NULL;
    }
 
leave:
    return;
}

amxrt_el_slot_wait_write_fd()

static void amxrt_el_slot_wait_write_fd ( UNUSED const char *const  sig_name, const amxc_var_t *const  data, UNUSED void *const  priv  )

static

Definition at line 164 of file amxrt_el_libevent.c.

                                                                 {
    amxp_connection_t* con = NULL;
    el_data_t* el_data = NULL;
 
    when_true(amxc_var_type_of(data) != AMXC_VAR_ID_FD, leave);
 
    con = amxp_connection_get(amxc_var_constcast(fd_t, data));
    when_null(con, leave);
 
    el_data = (el_data_t*) con->el_data;
    when_null(el_data, leave);
    if(el_data->can_write != NULL) {
        event_del(el_data->can_write);
        free(el_data->can_write);
    }
    el_data->can_write = event_new(base,
                                   con->fd,
                                   EV_WRITE,
                                   amxrt_el_connection_can_write_cb,
                                   con);
    event_add(el_data->can_write, NULL);
 
leave:
    return;
}

Variable Documentation

base

struct event_base* base = NULL

static

Definition at line 64 of file amxrt_el_libevent.c.