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 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 "core.h"
  32 #include "module.h"
  33 #include "sink.h"
  34 #include "source.h"
  35 #include "namereg.h"
  36 #include "util.h"
  37 #include "scache.h"
  38 #include "autoload.h"
  39 #include "xmalloc.h"
  40 #include "subscribe.h"
  41 #include "props.h"
  42 #include "random.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 = PA_RESAMPLER_SRC_SINC_FASTEST;
  86
  87     pa_property_init(c);
  88
  89     pa_random(&c->cookie, sizeof(c->cookie));
  90
  91     pa_check_signal_is_blocked(SIGPIPE);
  92     return c;
  93 }
  94
  95 void pa_core_free(struct pa_core *c) {
  96     assert(c);
  97
  98     pa_module_unload_all(c);
  99     assert(!c->modules);
 100
 101     assert(pa_idxset_isempty(c->clients));
 102     pa_idxset_free(c->clients, NULL, NULL);
 103
 104     assert(pa_idxset_isempty(c->sinks));
 105     pa_idxset_free(c->sinks, NULL, NULL);
 106
 107     assert(pa_idxset_isempty(c->sources));
 108     pa_idxset_free(c->sources, NULL, NULL);
 109
 110     assert(pa_idxset_isempty(c->source_outputs));
 111     pa_idxset_free(c->source_outputs, NULL, NULL);
 112
 113     assert(pa_idxset_isempty(c->sink_inputs));
 114     pa_idxset_free(c->sink_inputs, NULL, NULL);
 115
 116     pa_scache_free(c);
 117     pa_namereg_free(c);
 118     pa_autoload_free(c);
 119     pa_subscription_free_all(c);
 120
 121     if (c->quit_event)
 122         c->mainloop->time_free(c->quit_event);
 123
 124     pa_xfree(c->default_source_name);
 125     pa_xfree(c->default_sink_name);
 126
 127     pa_memblock_stat_unref(c->memblock_stat);
 128
 129     pa_property_cleanup(c);
 130
 131     pa_xfree(c);
 132 }
 133
 134 static void quit_callback(struct pa_mainloop_api*m, struct pa_time_event *e, const struct timeval *tv, void *userdata) {
 135     struct pa_core *c = userdata;
 136     assert(c->quit_event = e);
 137
 138     m->quit(m, 0);
 139 }
 140
 141 void pa_core_check_quit(struct pa_core *c) {
 142     assert(c);
 143
 144     if (!c->quit_event && c->exit_idle_time >= 0 && pa_idxset_ncontents(c->clients) == 0) {
 145         struct timeval tv;
 146         gettimeofday(&tv, NULL);
 147         tv.tv_sec+= c->exit_idle_time;
 148         c->quit_event = c->mainloop->time_new(c->mainloop, &tv, quit_callback, c);
 149     } else if (c->quit_event && pa_idxset_ncontents(c->clients) > 0) {
 150         c->mainloop->time_free(c->quit_event);
 151         c->quit_event = NULL;
 152     }
 153 }
 154