-/* $Id$ */
-
/***
This file is part of PulseAudio.
-
+
+ Copyright 2004-2006 Lennart Poettering
+ Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
+
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
- by the Free Software Foundation; either version 2 of the License,
+ by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
-
+
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
-
+
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
#endif
#include <stdlib.h>
-#include <assert.h>
#include <stdio.h>
#include <signal.h>
+#include <pulse/rtclock.h>
#include <pulse/timeval.h>
#include <pulse/xmalloc.h>
#include <pulsecore/module.h>
-#include <pulsecore/sink.h>
-#include <pulsecore/source.h>
-#include <pulsecore/namereg.h>
+#include <pulsecore/core-rtclock.h>
#include <pulsecore/core-util.h>
#include <pulsecore/core-scache.h>
-#include <pulsecore/autoload.h>
#include <pulsecore/core-subscribe.h>
-#include <pulsecore/props.h>
#include <pulsecore/random.h>
#include <pulsecore/log.h>
+#include <pulsecore/macro.h>
#include "core.h"
-pa_core* pa_core_new(pa_mainloop_api *m, int shared) {
+PA_DEFINE_PUBLIC_CLASS(pa_core, pa_msgobject);
+
+static int core_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
+ pa_core *c = PA_CORE(o);
+
+ pa_core_assert_ref(c);
+
+ switch (code) {
+
+ case PA_CORE_MESSAGE_UNLOAD_MODULE:
+ pa_module_unload(c, userdata, true);
+ return 0;
+
+ default:
+ return -1;
+ }
+}
+
+static void core_free(pa_object *o);
+
+pa_core* pa_core_new(pa_mainloop_api *m, bool shared, size_t shm_size) {
pa_core* c;
pa_mempool *pool;
+ int j;
+
+ pa_assert(m);
- if (!(pool = pa_mempool_new(shared))) {
- pa_log("pa_mempool_new() failed.");
- return NULL;
- }
-
- c = pa_xnew(pa_core, 1);
+ if (shared) {
+ if (!(pool = pa_mempool_new(shared, shm_size))) {
+ pa_log_warn("failed to allocate shared memory pool. Falling back to a normal memory pool.");
+ shared = false;
+ }
+ }
+
+ if (!shared) {
+ if (!(pool = pa_mempool_new(shared, shm_size))) {
+ pa_log("pa_mempool_new() failed.");
+ return NULL;
+ }
+ }
+
+ c = pa_msgobject_new(pa_core);
+ c->parent.parent.free = core_free;
+ c->parent.process_msg = core_process_msg;
+ c->state = PA_CORE_STARTUP;
c->mainloop = m;
+
c->clients = pa_idxset_new(NULL, NULL);
+ c->cards = pa_idxset_new(NULL, NULL);
c->sinks = pa_idxset_new(NULL, NULL);
c->sources = pa_idxset_new(NULL, NULL);
- c->source_outputs = pa_idxset_new(NULL, NULL);
c->sink_inputs = pa_idxset_new(NULL, NULL);
+ c->source_outputs = pa_idxset_new(NULL, NULL);
+ c->modules = pa_idxset_new(NULL, NULL);
+ c->scache = pa_idxset_new(NULL, NULL);
- c->default_source_name = c->default_sink_name = NULL;
+ c->namereg = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
+ c->shared = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
- c->modules = NULL;
- c->namereg = NULL;
- c->scache = NULL;
- c->autoload_idxset = NULL;
- c->autoload_hashmap = NULL;
- c->running_as_daemon = 0;
+ c->default_source = NULL;
+ c->default_sink = NULL;
c->default_sample_spec.format = PA_SAMPLE_S16NE;
c->default_sample_spec.rate = 44100;
c->default_sample_spec.channels = 2;
+ pa_channel_map_init_extend(&c->default_channel_map, c->default_sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
+ c->default_n_fragments = 4;
+ c->default_fragment_size_msec = 25;
+
+ c->deferred_volume_safety_margin_usec = 8000;
+ c->deferred_volume_extra_delay_usec = 0;
- c->module_auto_unload_event = NULL;
c->module_defer_unload_event = NULL;
c->scache_auto_unload_event = NULL;
c->subscription_event_last = NULL;
c->mempool = pool;
+ pa_silence_cache_init(&c->silence_cache);
- c->disallow_module_loading = 0;
-
- c->quit_event = NULL;
+ c->exit_event = NULL;
c->exit_idle_time = -1;
- c->module_idle_time = 20;
c->scache_idle_time = 20;
- c->resample_method = PA_RESAMPLER_SRC_SINC_FASTEST;
-
- c->is_system_instance = 0;
+ c->flat_volumes = true;
+ c->disallow_module_loading = false;
+ c->disallow_exit = false;
+ c->running_as_daemon = false;
+ c->realtime_scheduling = false;
+ c->realtime_priority = 5;
+ c->disable_remixing = false;
+ c->disable_lfe_remixing = false;
+ c->deferred_volume = true;
+ c->resample_method = PA_RESAMPLER_SPEEX_FLOAT_BASE + 1;
- pa_hook_init(&c->hook_sink_input_new, c);
- pa_hook_init(&c->hook_sink_disconnect, c);
- pa_hook_init(&c->hook_source_output_new, c);
- pa_hook_init(&c->hook_source_disconnect, c);
-
- pa_property_init(c);
+ for (j = 0; j < PA_CORE_HOOK_MAX; j++)
+ pa_hook_init(&c->hooks[j], c);
pa_random(&c->cookie, sizeof(c->cookie));
-
+
#ifdef SIGPIPE
pa_check_signal_is_blocked(SIGPIPE);
#endif
+
+ pa_core_check_idle(c);
+
+ c->state = PA_CORE_RUNNING;
+
return c;
}
-void pa_core_free(pa_core *c) {
- assert(c);
-
- pa_module_unload_all(c);
- assert(!c->modules);
-
- assert(pa_idxset_isempty(c->clients));
- pa_idxset_free(c->clients, NULL, NULL);
-
- assert(pa_idxset_isempty(c->sinks));
- pa_idxset_free(c->sinks, NULL, NULL);
-
- assert(pa_idxset_isempty(c->sources));
- pa_idxset_free(c->sources, NULL, NULL);
-
- assert(pa_idxset_isempty(c->source_outputs));
- pa_idxset_free(c->source_outputs, NULL, NULL);
-
- assert(pa_idxset_isempty(c->sink_inputs));
- pa_idxset_free(c->sink_inputs, NULL, NULL);
-
- pa_scache_free(c);
- pa_namereg_free(c);
- pa_autoload_free(c);
+static void core_free(pa_object *o) {
+ pa_core *c = PA_CORE(o);
+ int j;
+ pa_assert(c);
+
+ c->state = PA_CORE_SHUTDOWN;
+
+ /* Note: All modules and samples in the cache should be unloaded before
+ * we get here */
+
+ pa_assert(pa_idxset_isempty(c->scache));
+ pa_idxset_free(c->scache, NULL);
+
+ pa_assert(pa_idxset_isempty(c->modules));
+ pa_idxset_free(c->modules, NULL);
+
+ pa_assert(pa_idxset_isempty(c->clients));
+ pa_idxset_free(c->clients, NULL);
+
+ pa_assert(pa_idxset_isempty(c->cards));
+ pa_idxset_free(c->cards, NULL);
+
+ pa_assert(pa_idxset_isempty(c->sinks));
+ pa_idxset_free(c->sinks, NULL);
+
+ pa_assert(pa_idxset_isempty(c->sources));
+ pa_idxset_free(c->sources, NULL);
+
+ pa_assert(pa_idxset_isempty(c->source_outputs));
+ pa_idxset_free(c->source_outputs, NULL);
+
+ pa_assert(pa_idxset_isempty(c->sink_inputs));
+ pa_idxset_free(c->sink_inputs, NULL);
+
+ pa_assert(pa_hashmap_isempty(c->namereg));
+ pa_hashmap_free(c->namereg);
+
+ pa_assert(pa_hashmap_isempty(c->shared));
+ pa_hashmap_free(c->shared);
+
pa_subscription_free_all(c);
- if (c->quit_event)
- c->mainloop->time_free(c->quit_event);
+ if (c->exit_event)
+ c->mainloop->time_free(c->exit_event);
- pa_xfree(c->default_source_name);
- pa_xfree(c->default_sink_name);
+ pa_assert(!c->default_source);
+ pa_assert(!c->default_sink);
+ pa_silence_cache_done(&c->silence_cache);
pa_mempool_free(c->mempool);
- pa_property_cleanup(c);
+ for (j = 0; j < PA_CORE_HOOK_MAX; j++)
+ pa_hook_done(&c->hooks[j]);
- pa_hook_free(&c->hook_sink_input_new);
- pa_hook_free(&c->hook_sink_disconnect);
- pa_hook_free(&c->hook_source_output_new);
- pa_hook_free(&c->hook_source_disconnect);
-
- pa_xfree(c);
+ pa_xfree(c);
}
-static void quit_callback(pa_mainloop_api*m, pa_time_event *e, PA_GCC_UNUSED const struct timeval *tv, void *userdata) {
+static void exit_callback(pa_mainloop_api *m, pa_time_event *e, const struct timeval *t, void *userdata) {
pa_core *c = userdata;
- assert(c->quit_event = e);
+ pa_assert(c->exit_event == e);
+
+ pa_log_info("We are idle, quitting...");
+ pa_core_exit(c, true, 0);
+}
- m->quit(m, 0);
+void pa_core_check_idle(pa_core *c) {
+ pa_assert(c);
+
+ if (!c->exit_event &&
+ c->exit_idle_time >= 0 &&
+ pa_idxset_size(c->clients) == 0) {
+
+ c->exit_event = pa_core_rttime_new(c, pa_rtclock_now() + c->exit_idle_time * PA_USEC_PER_SEC, exit_callback, c);
+
+ } else if (c->exit_event && pa_idxset_size(c->clients) > 0) {
+ c->mainloop->time_free(c->exit_event);
+ c->exit_event = NULL;
+ }
+}
+
+int pa_core_exit(pa_core *c, bool force, int retval) {
+ pa_assert(c);
+
+ if (c->disallow_exit && !force)
+ return -1;
+
+ c->mainloop->quit(c->mainloop, retval);
+ return 0;
}
-void pa_core_check_quit(pa_core *c) {
- assert(c);
-
- if (!c->quit_event && c->exit_idle_time >= 0 && pa_idxset_size(c->clients) == 0) {
- struct timeval tv;
- pa_gettimeofday(&tv);
- tv.tv_sec+= c->exit_idle_time;
- c->quit_event = c->mainloop->time_new(c->mainloop, &tv, quit_callback, c);
- } else if (c->quit_event && pa_idxset_size(c->clients) > 0) {
- c->mainloop->time_free(c->quit_event);
- c->quit_event = NULL;
+void pa_core_maybe_vacuum(pa_core *c) {
+ pa_assert(c);
+
+ if (pa_idxset_isempty(c->sink_inputs) && pa_idxset_isempty(c->source_outputs)) {
+ pa_log_debug("Hmm, no streams around, trying to vacuum.");
+ pa_mempool_vacuum(c->mempool);
+ } else {
+ pa_sink *si;
+ pa_source *so;
+ uint32_t idx;
+
+ idx = 0;
+ PA_IDXSET_FOREACH(si, c->sinks, idx)
+ if (pa_sink_get_state(si) != PA_SINK_SUSPENDED)
+ return;
+
+ idx = 0;
+ PA_IDXSET_FOREACH(so, c->sources, idx)
+ if (pa_source_get_state(so) != PA_SOURCE_SUSPENDED)
+ return;
+
+ pa_log_info("All sinks and sources are suspended, vacuuming memory");
+ pa_mempool_vacuum(c->mempool);
}
}
+pa_time_event* pa_core_rttime_new(pa_core *c, pa_usec_t usec, pa_time_event_cb_t cb, void *userdata) {
+ struct timeval tv;
+
+ pa_assert(c);
+ pa_assert(c->mainloop);
+
+ return c->mainloop->time_new(c->mainloop, pa_timeval_rtstore(&tv, usec, true), cb, userdata);
+}
+
+void pa_core_rttime_restart(pa_core *c, pa_time_event *e, pa_usec_t usec) {
+ struct timeval tv;
+
+ pa_assert(c);
+ pa_assert(c->mainloop);
+
+ c->mainloop->time_restart(e, pa_timeval_rtstore(&tv, usec, true));
+}