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c17545108b
some documentation update git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@124 fefdeb5f-60dc-0310-8127-8f9354f1896f
80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
/* $Id$ */
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/***
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This file is part of polypaudio.
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polypaudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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polypaudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with polypaudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <assert.h>
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#include <stdio.h>
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#include "polyplib-subscribe.h"
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#include "polyplib-internal.h"
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#include "pstream-util.h"
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void pa_command_subscribe_event(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
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struct pa_context *c = userdata;
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enum pa_subscription_event_type e;
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uint32_t index;
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assert(pd && command == PA_COMMAND_SUBSCRIBE_EVENT && t && c);
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pa_context_ref(c);
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if (pa_tagstruct_getu32(t, &e) < 0 ||
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pa_tagstruct_getu32(t, &index) < 0 ||
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!pa_tagstruct_eof(t)) {
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pa_context_fail(c, PA_ERROR_PROTOCOL);
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goto finish;
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}
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if (c->subscribe_callback)
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c->subscribe_callback(c, e, index, c->subscribe_userdata);
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finish:
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pa_context_unref(c);
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}
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struct pa_operation* pa_context_subscribe(struct pa_context *c, enum pa_subscription_mask m, void (*cb)(struct pa_context *c, int success, void *userdata), void *userdata) {
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struct pa_operation *o;
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struct pa_tagstruct *t;
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uint32_t tag;
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assert(c);
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o = pa_operation_new(c, NULL);
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o->callback = cb;
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o->userdata = userdata;
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t = pa_tagstruct_new(NULL, 0);
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pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE);
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pa_tagstruct_putu32(t, tag = c->ctag++);
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pa_tagstruct_putu32(t, m);
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pa_pstream_send_tagstruct(c->pstream, t);
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pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, o);
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return pa_operation_ref(o);
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}
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void pa_context_set_subscribe_callback(struct pa_context *c, void (*cb)(struct pa_context *c, enum pa_subscription_event_type t, uint32_t index, void *userdata), void *userdata) {
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assert(c);
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c->subscribe_callback = cb;
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c->subscribe_userdata = userdata;
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}
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