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