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/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
PulseAudio 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 2.1 of the License,
or (at your option) any later version.
PulseAudio 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 PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <pulse/xmalloc.h>
#include <pulsecore/cli.h>
#include <pulsecore/log.h>
#include <pulsecore/macro.h>
#include <pulsecore/shared.h>
#include "protocol-cli.h"
/* Don't allow more than this many concurrent connections */
#define MAX_CONNECTIONS 25
struct pa_cli_protocol {
PA_REFCNT_DECLARE;
pa_core *core;
pa_idxset *connections;
};
static void cli_unlink(pa_cli_protocol *p, pa_cli *c) {
pa_assert(p);
pa_assert(c);
pa_idxset_remove_by_data(p->connections, c, NULL);
pa_cli_free(c);
}
static void cli_eof_cb(pa_cli*c, void*userdata) {
pa_cli_protocol *p = userdata;
pa_assert(p);
cli_unlink(p, c);
}
void pa_cli_protocol_connect(pa_cli_protocol *p, pa_iochannel *io, pa_module *m) {
pa_cli *c;
pa_assert(p);
pa_assert(io);
pa_assert(m);
if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) {
pa_log("Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS);
pa_iochannel_free(io);
return;
}
c = pa_cli_new(p->core, io, m);
pa_cli_set_eof_callback(c, cli_eof_cb, p);
pa_idxset_put(p->connections, c, NULL);
}
void pa_cli_protocol_disconnect(pa_cli_protocol *p, pa_module *m) {
pa_cli *c;
void *state = NULL;
pa_assert(p);
pa_assert(m);
while ((c = pa_idxset_iterate(p->connections, &state, NULL)))
if (pa_cli_get_module(c) == m)
cli_unlink(p, c);
}
static pa_cli_protocol* cli_protocol_new(pa_core *c) {
pa_cli_protocol *p;
pa_assert(c);
p = pa_xnew(pa_cli_protocol, 1);
PA_REFCNT_INIT(p);
p->core = c;
p->connections = pa_idxset_new(NULL, NULL);
pa_assert_se(pa_shared_set(c, "cli-protocol", p) >= 0);
return p;
}
pa_cli_protocol* pa_cli_protocol_get(pa_core *c) {
pa_cli_protocol *p;
if ((p = pa_shared_get(c, "cli-protocol")))
return pa_cli_protocol_ref(p);
return cli_protocol_new(c);
}
pa_cli_protocol* pa_cli_protocol_ref(pa_cli_protocol *p) {
pa_assert(p);
pa_assert(PA_REFCNT_VALUE(p) >= 1);
PA_REFCNT_INC(p);
return p;
}
void pa_cli_protocol_unref(pa_cli_protocol *p) {
pa_cli *c;
pa_assert(p);
pa_assert(PA_REFCNT_VALUE(p) >= 1);
if (PA_REFCNT_DEC(p) > 0)
return;
while ((c = pa_idxset_first(p->connections, NULL)))
cli_unlink(p, c);
pa_idxset_free(p->connections, NULL);
pa_assert_se(pa_shared_remove(p->core, "cli-protocol") >= 0);
pa_xfree(p);
}
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