code.delx.au - pulseaudio/blob - src/pulsecore/client.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2004-2006 Lennart Poettering
   5   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
   6
   7   PulseAudio is free software; you can redistribute it and/or modify
   8   it under the terms of the GNU Lesser General Public License as published
   9   by the Free Software Foundation; either version 2 of the License,
  10   or (at your option) any later version.
  11
  12   PulseAudio is distributed in the hope that it will be useful, but
  13   WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15   General Public License for more details.
  16
  17   You should have received a copy of the GNU Lesser General Public License
  18   along with PulseAudio; if not, write to the Free Software
  19   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  20   USA.
  21 ***/
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30
  31 #include <pulse/xmalloc.h>
  32
  33 #include <pulsecore/core-subscribe.h>
  34 #include <pulsecore/log.h>
  35 #include <pulsecore/macro.h>
  36 #include <pulsecore/core-util.h>
  37
  38 #include "client.h"
  39
  40 pa_client_new_data* pa_client_new_data_init(pa_client_new_data *data) {
  41     pa_assert(data);
  42
  43     memset(data, 0, sizeof(*data));
  44     data->proplist = pa_proplist_new();
  45
  46     return data;
  47 }
  48
  49 void pa_client_new_data_done(pa_client_new_data *data) {
  50     pa_assert(data);
  51
  52     pa_proplist_free(data->proplist);
  53 }
  54
  55 pa_client *pa_client_new(pa_core *core, pa_client_new_data *data) {
  56     pa_client *c;
  57
  58     pa_core_assert_ref(core);
  59     pa_assert(data);
  60
  61     if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_CLIENT_NEW], data) < 0)
  62         return NULL;
  63
  64     c = pa_xnew(pa_client, 1);
  65     c->core = core;
  66     c->proplist = pa_proplist_copy(data->proplist);
  67     c->driver = pa_xstrdup(data->driver);
  68     c->module = data->module;
  69
  70     c->sink_inputs = pa_idxset_new(NULL, NULL);
  71     c->source_outputs = pa_idxset_new(NULL, NULL);
  72
  73     c->userdata = NULL;
  74     c->kill = NULL;
  75
  76     pa_assert_se(pa_idxset_put(core->clients, c, &c->index) >= 0);
  77
  78     pa_log_info("Created %u \"%s\"", c->index, pa_strnull(pa_proplist_gets(c->proplist, PA_PROP_APPLICATION_NAME)));
  79     pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_NEW, c->index);
  80
  81     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CLIENT_PUT], c);
  82
  83     pa_core_check_idle(core);
  84
  85     return c;
  86 }
  87
  88 void pa_client_free(pa_client *c) {
  89     pa_core *core;
  90
  91     pa_assert(c);
  92     pa_assert(c->core);
  93
  94     core = c->core;
  95
  96     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CLIENT_UNLINK], c);
  97
  98     pa_idxset_remove_by_data(c->core->clients, c, NULL);
  99
 100     pa_log_info("Freed %u \"%s\"", c->index, pa_strnull(pa_proplist_gets(c->proplist, PA_PROP_APPLICATION_NAME)));
 101     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_REMOVE, c->index);
 102
 103     pa_assert(pa_idxset_isempty(c->sink_inputs));
 104     pa_idxset_free(c->sink_inputs, NULL, NULL);
 105     pa_assert(pa_idxset_isempty(c->source_outputs));
 106     pa_idxset_free(c->source_outputs, NULL, NULL);
 107
 108     pa_proplist_free(c->proplist);
 109     pa_xfree(c->driver);
 110     pa_xfree(c);
 111
 112     pa_core_check_idle(core);
 113 }
 114
 115 void pa_client_kill(pa_client *c) {
 116     pa_assert(c);
 117
 118     if (!c->kill) {
 119         pa_log_warn("kill() operation not implemented for client %u", c->index);
 120         return;
 121     }
 122
 123     c->kill(c);
 124 }
 125
 126 void pa_client_set_name(pa_client *c, const char *name) {
 127     pa_assert(c);
 128
 129     pa_log_info("Client %u changed name from \"%s\" to \"%s\"", c->index, pa_strnull(pa_proplist_gets(c->proplist, PA_PROP_APPLICATION_NAME)), name);
 130     pa_proplist_sets(c->proplist, PA_PROP_APPLICATION_NAME, name);
 131     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->index);
 132 }