code.delx.au - pulseaudio/blob - src/polypcore/core.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of polypaudio.
   5
   6   polypaudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as published
   8   by the Free Software Foundation; either version 2 of the License,
   9   or (at your option) any later version.
  10
  11   polypaudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with polypaudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <stdlib.h>
  27 #include <assert.h>
  28 #include <stdio.h>
  29 #include <signal.h>
  30
  31 #include <polyp/xmalloc.h>
  32
  33 #include <polypcore/module.h>
  34 #include <polypcore/sink.h>
  35 #include <polypcore/source.h>
  36 #include <polypcore/namereg.h>
  37 #include <polypcore/core-util.h>
  38 #include <polypcore/core-scache.h>
  39 #include <polypcore/autoload.h>
  40 #include <polypcore/core-subscribe.h>
  41 #include <polypcore/props.h>
  42 #include <polypcore/random.h>
  43
  44 #include "core.h"
  45
  46 pa_core* pa_core_new(pa_mainloop_api *m) {
  47     pa_core* c;
  48     c = pa_xmalloc(sizeof(pa_core));
  49
  50     c->mainloop = m;
  51     c->clients = pa_idxset_new(NULL, NULL);
  52     c->sinks = pa_idxset_new(NULL, NULL);
  53     c->sources = pa_idxset_new(NULL, NULL);
  54     c->source_outputs = pa_idxset_new(NULL, NULL);
  55     c->sink_inputs = pa_idxset_new(NULL, NULL);
  56
  57     c->default_source_name = c->default_sink_name = NULL;
  58
  59     c->modules = NULL;
  60     c->namereg = NULL;
  61     c->scache = NULL;
  62     c->autoload_idxset = NULL;
  63     c->autoload_hashmap = NULL;
  64     c->running_as_daemon = 0;
  65
  66     c->default_sample_spec.format = PA_SAMPLE_S16NE;
  67     c->default_sample_spec.rate = 44100;
  68     c->default_sample_spec.channels = 2;
  69
  70     c->module_auto_unload_event = NULL;
  71     c->module_defer_unload_event = NULL;
  72     c->scache_auto_unload_event = NULL;
  73
  74     c->subscription_defer_event = NULL;
  75     c->subscription_event_queue = NULL;
  76     c->subscriptions = NULL;
  77
  78     c->memblock_stat = pa_memblock_stat_new();
  79
  80     c->disallow_module_loading = 0;
  81
  82     c->quit_event = NULL;
  83
  84     c->exit_idle_time = -1;
  85     c->module_idle_time = 20;
  86     c->scache_idle_time = 20;
  87
  88     c->resample_method = PA_RESAMPLER_SRC_SINC_FASTEST;
  89
  90     pa_property_init(c);
  91
  92     pa_random(&c->cookie, sizeof(c->cookie));
  93
  94 #ifdef SIGPIPE
  95     pa_check_signal_is_blocked(SIGPIPE);
  96 #endif
  97     return c;
  98 }
  99
 100 void pa_core_free(pa_core *c) {
 101     assert(c);
 102
 103     pa_module_unload_all(c);
 104     assert(!c->modules);
 105
 106     assert(pa_idxset_isempty(c->clients));
 107     pa_idxset_free(c->clients, NULL, NULL);
 108
 109     assert(pa_idxset_isempty(c->sinks));
 110     pa_idxset_free(c->sinks, NULL, NULL);
 111
 112     assert(pa_idxset_isempty(c->sources));
 113     pa_idxset_free(c->sources, NULL, NULL);
 114
 115     assert(pa_idxset_isempty(c->source_outputs));
 116     pa_idxset_free(c->source_outputs, NULL, NULL);
 117
 118     assert(pa_idxset_isempty(c->sink_inputs));
 119     pa_idxset_free(c->sink_inputs, NULL, NULL);
 120
 121     pa_scache_free(c);
 122     pa_namereg_free(c);
 123     pa_autoload_free(c);
 124     pa_subscription_free_all(c);
 125
 126     if (c->quit_event)
 127         c->mainloop->time_free(c->quit_event);
 128
 129     pa_xfree(c->default_source_name);
 130     pa_xfree(c->default_sink_name);
 131
 132     pa_memblock_stat_unref(c->memblock_stat);
 133
 134     pa_property_cleanup(c);
 135
 136     pa_xfree(c);
 137 }
 138
 139 static void quit_callback(pa_mainloop_api*m, pa_time_event *e, PA_GCC_UNUSED const struct timeval *tv, void *userdata) {
 140     pa_core *c = userdata;
 141     assert(c->quit_event = e);
 142
 143     m->quit(m, 0);
 144 }
 145
 146 void pa_core_check_quit(pa_core *c) {
 147     assert(c);
 148
 149     if (!c->quit_event && c->exit_idle_time >= 0 && pa_idxset_size(c->clients) == 0) {
 150         struct timeval tv;
 151         pa_gettimeofday(&tv);
 152         tv.tv_sec+= c->exit_idle_time;
 153         c->quit_event = c->mainloop->time_new(c->mainloop, &tv, quit_callback, c);
 154     } else if (c->quit_event && pa_idxset_size(c->clients) > 0) {
 155         c->mainloop->time_free(c->quit_event);
 156         c->quit_event = NULL;
 157     }
 158 }
 159