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/*
* Copyright 2011 Red Hat, Inc.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/* An edited version of verto's verto-libev.c, using an embedded libev with
* renamed symbols. */
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "verto-k5ev.h"
#include <verto-module.h>
#include "rename.h"
#include "autoconf.h"
#define EV_STANDALONE 1
/* Avoids using clock_gettime; we probably shouldn't have to do this. */
#define EV_USE_REALTIME 0
#define EV_FEATURES 0x5f /* Everything but back ends */
#ifdef HAVE_POLL_H
#define EV_USE_POLL 1
#else
#define EV_USE_SELECT 1
#endif
#include "ev.c"
static void
k5ev_ctx_free(void *ctx)
{
if (ctx != EV_DEFAULT)
ev_loop_destroy(ctx);
}
static void
k5ev_ctx_run(void *ctx)
{
ev_run(ctx, 0);
}
static void
k5ev_ctx_run_once(void *ctx)
{
ev_run(ctx, EVRUN_ONCE);
}
static void
k5ev_ctx_break(void *ctx)
{
ev_break(ctx, EVBREAK_ONE);
}
static void
libev_callback(EV_P_ ev_watcher *w, int revents)
{
if (verto_get_type(w->data) == VERTO_EV_TYPE_CHILD)
verto_set_proc_status(w->data, ((ev_child*) w)->rstatus);
verto_fire(w->data);
}
#define setuptype(type, priv, ...) \
type ## w = malloc(sizeof(ev_ ## type)); \
if (!type ## w) \
return NULL; \
ev_ ## type ## _init(type ## w, (EV_CB(type, (*))) __VA_ARGS__); \
type ## w->data = (void *) priv; \
ev_ ## type ## _start(ctx, type ## w); \
return type ## w
static void *
k5ev_ctx_add(void *ctx, const verto_ev *ev, verto_ev_flag *flags)
{
ev_io *iow = NULL;
ev_timer *timerw = NULL;
ev_idle *idlew = NULL;
ev_signal *signalw = NULL;
ev_child *childw = NULL;
ev_tstamp interval;
int events = EV_NONE;
*flags |= VERTO_EV_FLAG_PERSIST;
switch (verto_get_type(ev)) {
case VERTO_EV_TYPE_IO:
if (verto_get_flags(ev) & VERTO_EV_FLAG_IO_READ)
events |= EV_READ;
if (verto_get_flags(ev) & VERTO_EV_FLAG_IO_WRITE)
events |= EV_WRITE;
setuptype(io, ev, libev_callback, verto_get_fd(ev), events);
case VERTO_EV_TYPE_TIMEOUT:
interval = ((ev_tstamp) verto_get_interval(ev)) / 1000.0;
setuptype(timer, ev, libev_callback, interval, interval);
case VERTO_EV_TYPE_IDLE:
setuptype(idle, ev, libev_callback);
case VERTO_EV_TYPE_SIGNAL:
setuptype(signal, ev, libev_callback, verto_get_signal(ev));
case VERTO_EV_TYPE_CHILD:
*flags &= ~VERTO_EV_FLAG_PERSIST; /* Child events don't persist */
setuptype(child, ev, libev_callback, verto_get_proc(ev), 0);
default:
return NULL; /* Not supported */
}
}
static void
k5ev_ctx_del(void *ctx, const verto_ev *ev, void *evpriv)
{
switch (verto_get_type(ev)) {
case VERTO_EV_TYPE_IO:
ev_io_stop(ctx, evpriv);
case VERTO_EV_TYPE_TIMEOUT:
ev_timer_stop(ctx, evpriv);
case VERTO_EV_TYPE_IDLE:
ev_idle_stop(ctx, evpriv);
case VERTO_EV_TYPE_SIGNAL:
ev_signal_stop(ctx, evpriv);
case VERTO_EV_TYPE_CHILD:
ev_child_stop(ctx, evpriv);
default:
break;
}
free(evpriv);
}
static verto_ctx *verto_convert_k5ev(struct ev_loop* loop);
VERTO_MODULE(k5ev, NULL,
VERTO_EV_TYPE_IO |
VERTO_EV_TYPE_TIMEOUT |
VERTO_EV_TYPE_IDLE |
VERTO_EV_TYPE_SIGNAL |
VERTO_EV_TYPE_CHILD);
verto_ctx *
verto_new_k5ev()
{
return verto_convert_k5ev(ev_loop_new(EVFLAG_AUTO));
}
verto_ctx *
verto_default_k5ev()
{
return verto_convert_k5ev(ev_default_loop(EVFLAG_AUTO));
}
/* Don't export this since our underlying libev is hidden. */
static verto_ctx *
verto_convert_k5ev(struct ev_loop* loop)
{
return verto_convert(k5ev, loop);
}
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