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 #include <pulse/util.h>
  33
  34 #include <pulsecore/core-subscribe.h>
  35 #include <pulsecore/log.h>
  36 #include <pulsecore/macro.h>
  37 #include <pulsecore/core-util.h>
  38
  39 #include "client.h"
  40
  41 pa_client_new_data* pa_client_new_data_init(pa_client_new_data *data) {
  42     pa_assert(data);
  43
  44     memset(data, 0, sizeof(*data));
  45     data->proplist = pa_proplist_new();
  46
  47     return data;
  48 }
  49
  50 void pa_client_new_data_done(pa_client_new_data *data) {
  51     pa_assert(data);
  52
  53     pa_proplist_free(data->proplist);
  54 }
  55
  56 pa_client *pa_client_new(pa_core *core, pa_client_new_data *data) {
  57     pa_client *c;
  58
  59     pa_core_assert_ref(core);
  60     pa_assert(data);
  61
  62     if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_CLIENT_NEW], data) < 0)
  63         return NULL;
  64
  65     c = pa_xnew(pa_client, 1);
  66     c->core = core;
  67     c->proplist = pa_proplist_copy(data->proplist);
  68     c->driver = pa_xstrdup(pa_path_get_filename(data->driver));
  69     c->module = data->module;
  70
  71     c->sink_inputs = pa_idxset_new(NULL, NULL);
  72     c->source_outputs = pa_idxset_new(NULL, NULL);
  73
  74     c->userdata = NULL;
  75     c->kill = NULL;
  76
  77     pa_assert_se(pa_idxset_put(core->clients, c, &c->index) >= 0);
  78
  79     pa_log_info("Created %u \"%s\"", c->index, pa_strnull(pa_proplist_gets(c->proplist, PA_PROP_APPLICATION_NAME)));
  80     pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_NEW, c->index);
  81
  82     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CLIENT_PUT], c);
  83
  84     pa_core_check_idle(core);
  85
  86     return c;
  87 }
  88
  89 void pa_client_free(pa_client *c) {
  90     pa_core *core;
  91
  92     pa_assert(c);
  93     pa_assert(c->core);
  94
  95     core = c->core;
  96
  97     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CLIENT_UNLINK], c);
  98
  99     pa_idxset_remove_by_data(c->core->clients, c, NULL);
 100
 101     pa_log_info("Freed %u \"%s\"", c->index, pa_strnull(pa_proplist_gets(c->proplist, PA_PROP_APPLICATION_NAME)));
 102     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_REMOVE, c->index);
 103
 104     pa_assert(pa_idxset_isempty(c->sink_inputs));
 105     pa_idxset_free(c->sink_inputs, NULL, NULL);
 106     pa_assert(pa_idxset_isempty(c->source_outputs));
 107     pa_idxset_free(c->source_outputs, NULL, NULL);
 108
 109     pa_proplist_free(c->proplist);
 110     pa_xfree(c->driver);
 111     pa_xfree(c);
 112
 113     pa_core_check_idle(core);
 114 }
 115
 116 void pa_client_kill(pa_client *c) {
 117     pa_assert(c);
 118
 119     if (!c->kill) {
 120         pa_log_warn("kill() operation not implemented for client %u", c->index);
 121         return;
 122     }
 123
 124     c->kill(c);
 125 }
 126
 127 void pa_client_set_name(pa_client *c, const char *name) {
 128     pa_assert(c);
 129
 130     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);
 131     pa_proplist_sets(c->proplist, PA_PROP_APPLICATION_NAME, name);
 132     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->index);
 133 }