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/*
* Copyright (c) 2011 William Pitcock <nenolod@dereferenced.org>.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "mowgli.h"
static mowgli_heap_t *eventloop_heap = NULL;
extern mowgli_eventloop_ops_t _mowgli_null_pollops;
#ifdef HAVE_PORT_CREATE
extern mowgli_eventloop_ops_t _mowgli_ports_pollops;
#endif
#ifdef HAVE_DISPATCH_BLOCK
extern mowgli_eventloop_ops_t _mowgli_qnx_pollops;
#endif
#ifdef HAVE_SELECT
extern mowgli_eventloop_ops_t _mowgli_select_pollops;
#endif
#ifdef HAVE_POLL_H
extern mowgli_eventloop_ops_t _mowgli_poll_pollops;
#endif
#ifdef HAVE_SYS_EPOLL_H
extern mowgli_eventloop_ops_t _mowgli_epoll_pollops;
#endif
#ifdef HAVE_KQUEUE
extern mowgli_eventloop_ops_t _mowgli_kqueue_pollops;
#endif
#if 0
extern mowgli_eventloop_ops_t _mowgli_winsock_pollops;
#endif
mowgli_eventloop_t *
mowgli_eventloop_create(void)
{
mowgli_eventloop_t *eventloop;
if (eventloop_heap == NULL)
eventloop_heap = mowgli_heap_create(sizeof(mowgli_eventloop_t), 16, BH_NOW);
eventloop = mowgli_heap_alloc(eventloop_heap);
eventloop->eventloop_ops = &_mowgli_null_pollops;
#ifdef HAVE_SELECT
eventloop->eventloop_ops = &_mowgli_select_pollops;
#endif
#ifdef HAVE_POLL_H
eventloop->eventloop_ops = &_mowgli_poll_pollops;
#endif
#ifdef HAVE_SYS_EPOLL_H
eventloop->eventloop_ops = &_mowgli_epoll_pollops;
#endif
#ifdef HAVE_KQUEUE
eventloop->eventloop_ops = &_mowgli_kqueue_pollops;
#endif
#ifdef HAVE_DISPATCH_BLOCK
eventloop->eventloop_ops = &_mowgli_qnx_pollops;
#endif
#ifdef HAVE_PORT_CREATE
eventloop->eventloop_ops = &_mowgli_ports_pollops;
#endif
#if 0
eventloop->eventloop_ops = &_mowgli_winsock_pollops;
#endif
if (mowgli_mutex_init(&eventloop->mutex) != 0)
{
mowgli_log("couldn't create mutex for eventloop %p, aborting...", (void *) eventloop);
abort();
}
eventloop->eventloop_ops->pollsetup(eventloop);
eventloop->deadline = -1;
mowgli_eventloop_calibrate(eventloop);
return eventloop;
}
void
mowgli_eventloop_destroy(mowgli_eventloop_t *eventloop)
{
eventloop->eventloop_ops->pollshutdown(eventloop);
mowgli_mutex_uninit(&eventloop->mutex);
mowgli_heap_free(eventloop_heap, eventloop);
}
void
mowgli_eventloop_run(mowgli_eventloop_t *eventloop)
{
return_if_fail(eventloop != NULL);
mowgli_mutex_lock(&eventloop->mutex);
eventloop->death_requested = false;
while (!eventloop->death_requested)
{
eventloop->eventloop_ops->run_once(eventloop);
}
mowgli_mutex_unlock(&eventloop->mutex);
}
void
mowgli_eventloop_run_once(mowgli_eventloop_t *eventloop)
{
return_if_fail(eventloop != NULL);
mowgli_mutex_lock(&eventloop->mutex);
eventloop->eventloop_ops->run_once(eventloop);
mowgli_mutex_unlock(&eventloop->mutex);
}
void
mowgli_eventloop_timeout_once(mowgli_eventloop_t *eventloop, int timeout)
{
return_if_fail(eventloop != NULL);
mowgli_mutex_lock(&eventloop->mutex);
if (timeout >= 0)
eventloop->eventloop_ops->timeout_once(eventloop, timeout);
else
eventloop->eventloop_ops->run_once(eventloop);
mowgli_mutex_unlock(&eventloop->mutex);
}
void
mowgli_eventloop_break(mowgli_eventloop_t *eventloop)
{
return_if_fail(eventloop != NULL);
eventloop->death_requested = true;
}
/* convenience function to request null pollops */
void
mowgli_eventloop_timers_only(mowgli_eventloop_t *eventloop)
{
return_if_fail(eventloop != NULL);
eventloop->eventloop_ops = &_mowgli_null_pollops;
}
/* userdata setting/getting functions (for bindings) */
void *
mowgli_eventloop_get_data(mowgli_eventloop_t *eventloop)
{
return_val_if_fail(eventloop != NULL, NULL);
return eventloop->data;
}
void
mowgli_eventloop_set_data(mowgli_eventloop_t *eventloop, void *data)
{
return_if_fail(eventloop != NULL);
eventloop->data = data;
}
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