code.delx.au - pulseaudio/blob - polyp/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 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 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 #include <samplerate.h>
  31
  32 #include "core.h"
  33 #include "module.h"
  34 #include "sink.h"
  35 #include "source.h"
  36 #include "namereg.h"
  37 #include "util.h"
  38 #include "scache.h"
  39 #include "autoload.h"
  40 #include "xmalloc.h"
  41 #include "subscribe.h"
  42 #include "props.h"
  43
  44 struct pa_core* pa_core_new(struct pa_mainloop_api *m) {
  45     struct pa_core* c;
  46     c = pa_xmalloc(sizeof(struct pa_core));
  47
  48     c->mainloop = m;
  49     c->clients = pa_idxset_new(NULL, NULL);
  50     c->sinks = pa_idxset_new(NULL, NULL);
  51     c->sources = pa_idxset_new(NULL, NULL);
  52     c->source_outputs = pa_idxset_new(NULL, NULL);
  53     c->sink_inputs = pa_idxset_new(NULL, NULL);
  54
  55     c->default_source_name = c->default_sink_name = NULL;
  56
  57     c->modules = NULL;
  58     c->namereg = NULL;
  59     c->scache = NULL;
  60     c->autoload_idxset = NULL;
  61     c->autoload_hashmap = NULL;
  62
  63     c->default_sample_spec.format = PA_SAMPLE_S16NE;
  64     c->default_sample_spec.rate = 44100;
  65     c->default_sample_spec.channels = 2;
  66
  67     c->module_auto_unload_event = NULL;
  68     c->module_defer_unload_event = NULL;
  69     c->scache_auto_unload_event = NULL;
  70
  71     c->subscription_defer_event = NULL;
  72     c->subscription_event_queue = NULL;
  73     c->subscriptions = NULL;
  74
  75     c->memblock_stat = pa_memblock_stat_new();
  76
  77     c->disallow_module_loading = 0;
  78
  79     c->quit_event = NULL;
  80
  81     c->exit_idle_time = -1;
  82     c->module_idle_time = 20;
  83     c->scache_idle_time = 20;
  84
  85     c->resample_method = SRC_SINC_FASTEST;
  86
  87     pa_property_init(c);
  88
  89     pa_check_signal_is_blocked(SIGPIPE);
  90
  91     return c;
  92 }
  93
  94 void pa_core_free(struct pa_core *c) {
  95     assert(c);
  96
  97     pa_module_unload_all(c);
  98     assert(!c->modules);
  99
 100     assert(pa_idxset_isempty(c->clients));
 101     pa_idxset_free(c->clients, NULL, NULL);
 102
 103     assert(pa_idxset_isempty(c->sinks));
 104     pa_idxset_free(c->sinks, NULL, NULL);
 105
 106     assert(pa_idxset_isempty(c->sources));
 107     pa_idxset_free(c->sources, NULL, NULL);
 108
 109     assert(pa_idxset_isempty(c->source_outputs));
 110     pa_idxset_free(c->source_outputs, NULL, NULL);
 111
 112     assert(pa_idxset_isempty(c->sink_inputs));
 113     pa_idxset_free(c->sink_inputs, NULL, NULL);
 114
 115     pa_scache_free(c);
 116     pa_namereg_free(c);
 117     pa_autoload_free(c);
 118     pa_subscription_free_all(c);
 119
 120     if (c->quit_event)
 121         c->mainloop->time_free(c->quit_event);
 122
 123     pa_xfree(c->default_source_name);
 124     pa_xfree(c->default_sink_name);
 125
 126     pa_memblock_stat_unref(c->memblock_stat);
 127
 128     pa_property_cleanup(c);
 129
 130     pa_xfree(c);
 131 }
 132
 133 static void quit_callback(struct pa_mainloop_api*m, struct pa_time_event *e, const struct timeval *tv, void *userdata) {
 134     struct pa_core *c = userdata;
 135     assert(c->quit_event = e);
 136
 137     m->quit(m, 0);
 138 }
 139
 140 void pa_core_check_quit(struct pa_core *c) {
 141     assert(c);
 142
 143     if (!c->quit_event && c->exit_idle_time >= 0 && pa_idxset_ncontents(c->clients) == 0) {
 144         struct timeval tv;
 145         gettimeofday(&tv, NULL);
 146         tv.tv_sec+= c->exit_idle_time;
 147         c->quit_event = c->mainloop->time_new(c->mainloop, &tv, quit_callback, c);
 148     } else if (c->quit_event && pa_idxset_ncontents(c->clients) > 0) {
 149         c->mainloop->time_free(c->quit_event);
 150         c->quit_event = NULL;
 151     }
 152 }
 153