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     c->send_event = NULL;
  77
  78     pa_assert_se(pa_idxset_put(core->clients, c, &c->index) >= 0);
  79
  80     pa_log_info("Created %u \"%s\"", c->index, pa_strnull(pa_proplist_gets(c->proplist, PA_PROP_APPLICATION_NAME)));
  81     pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_NEW, c->index);
  82
  83     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CLIENT_PUT], c);
  84
  85     pa_core_check_idle(core);
  86
  87     return c;
  88 }
  89
  90 void pa_client_free(pa_client *c) {
  91     pa_core *core;
  92
  93     pa_assert(c);
  94     pa_assert(c->core);
  95
  96     core = c->core;
  97
  98     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CLIENT_UNLINK], c);
  99
 100     pa_idxset_remove_by_data(c->core->clients, c, NULL);
 101
 102     pa_log_info("Freed %u \"%s\"", c->index, pa_strnull(pa_proplist_gets(c->proplist, PA_PROP_APPLICATION_NAME)));
 103     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_REMOVE, c->index);
 104
 105     pa_assert(pa_idxset_isempty(c->sink_inputs));
 106     pa_idxset_free(c->sink_inputs, NULL, NULL);
 107     pa_assert(pa_idxset_isempty(c->source_outputs));
 108     pa_idxset_free(c->source_outputs, NULL, NULL);
 109
 110     pa_proplist_free(c->proplist);
 111     pa_xfree(c->driver);
 112     pa_xfree(c);
 113
 114     pa_core_check_idle(core);
 115 }
 116
 117 void pa_client_kill(pa_client *c) {
 118     pa_assert(c);
 119
 120     if (!c->kill) {
 121         pa_log_warn("kill() operation not implemented for client %u", c->index);
 122         return;
 123     }
 124
 125     c->kill(c);
 126 }
 127
 128 void pa_client_set_name(pa_client *c, const char *name) {
 129     pa_assert(c);
 130     pa_assert(name);
 131
 132     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);
 133     pa_proplist_sets(c->proplist, PA_PROP_APPLICATION_NAME, name);
 134
 135     pa_client_update_proplist(c, 0, NULL);
 136 }
 137
 138 void pa_client_update_proplist(pa_client *c, pa_update_mode_t mode, pa_proplist *p) {
 139     pa_assert(c);
 140
 141     if (p)
 142         pa_proplist_update(c->proplist, mode, p);
 143
 144     pa_hook_fire(&c->core->hooks[PA_CORE_HOOK_CLIENT_PROPLIST_CHANGED], c);
 145     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->index);
 146 }
 147
 148 void pa_client_send_event(pa_client *c, const char *event, pa_proplist *data) {
 149     pa_proplist *pl = NULL;
 150     pa_client_send_event_hook_data hook_data;
 151
 152     pa_assert(c);
 153     pa_assert(event);
 154
 155     if (!c->send_event)
 156         return;
 157
 158     if (!data)
 159         data = pl = pa_proplist_new();
 160
 161     hook_data.client = c;
 162     hook_data.data = data;
 163     hook_data.event = event;
 164
 165     if (pa_hook_fire(&c->core->hooks[PA_CORE_HOOK_CLIENT_SEND_EVENT], &hook_data) < 0)
 166         goto finish;
 167
 168     c->send_event(c, event, data);
 169
 170 finish:
 171
 172     if (pl)
 173         pa_proplist_free(pl);
 174 }