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/* $Id$ */
/***
This file is part of polypaudio.
polypaudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
polypaudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with polypaudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#include <assert.h>
#include <polypcore/log.h>
#include <polypcore/xmalloc.h>
#include <polypcore/props.h>
#include "howl-wrap.h"
#define HOWL_PROPERTY "howl"
struct pa_howl_wrapper {
pa_core *core;
int ref;
pa_io_event *io_event;
sw_discovery discovery;
};
static void howl_io_event(pa_mainloop_api*m, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) {
pa_howl_wrapper *w = userdata;
assert(m && e && fd >= 0 && w && w->ref >= 1);
if (f & (PA_IO_EVENT_HANGUP|PA_IO_EVENT_ERROR))
goto fail;
if (sw_discovery_read_socket(w->discovery) != SW_OKAY)
goto fail;
return;
fail:
pa_log(__FILE__": howl connection died.\n");
w->core->mainloop->io_free(w->io_event);
w->io_event = NULL;
}
static pa_howl_wrapper* howl_wrapper_new(pa_core *c) {
pa_howl_wrapper *h;
sw_discovery session;
assert(c);
if (sw_discovery_init(&session) != SW_OKAY) {
pa_log("sw_discovery_init() failed.\n");
return NULL;
}
h = pa_xmalloc(sizeof(pa_howl_wrapper));
h->core = c;
h->ref = 1;
h->discovery = session;
h->io_event = c->mainloop->io_new(c->mainloop, sw_discovery_socket(session), PA_IO_EVENT_INPUT, howl_io_event, h);
return h;
}
static void howl_wrapper_free(pa_howl_wrapper *h) {
assert(h);
sw_discovery_fina(h->discovery);
if (h->io_event)
h->core->mainloop->io_free(h->io_event);
pa_xfree(h);
}
pa_howl_wrapper* pa_howl_wrapper_get(pa_core *c) {
pa_howl_wrapper *h;
assert(c);
if ((h = pa_property_get(c, HOWL_PROPERTY)))
return pa_howl_wrapper_ref(h);
return howl_wrapper_new(c);
}
pa_howl_wrapper* pa_howl_wrapper_ref(pa_howl_wrapper *h) {
assert(h && h->ref >= 1);
h->ref++;
return h;
}
void pa_howl_wrapper_unref(pa_howl_wrapper *h) {
assert(h && h->ref >= 1);
if (!(--h->ref))
howl_wrapper_free(h);
}
sw_discovery pa_howl_wrapper_get_discovery(pa_howl_wrapper *h) {
assert(h && h->ref >= 1);
return h->discovery;
}
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