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ab37be46f6
This lets us suspend devices from within the core for short periods without having to overload one of the existing suspend causes. https://bugs.freedesktop.org/show_bug.cgi?id=64118
213 lines
6.8 KiB
C
213 lines
6.8 KiB
C
#ifndef foocorehfoo
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#define foocorehfoo
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/***
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This file is part of PulseAudio.
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Copyright 2004-2006 Lennart Poettering
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#include <pulse/mainloop-api.h>
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#include <pulse/sample.h>
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#include <pulsecore/cpu.h>
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typedef struct pa_core pa_core;
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/* This is a bitmask that encodes the cause why a sink/source is
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* suspended. */
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typedef enum pa_suspend_cause {
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PA_SUSPEND_USER = 1, /* Exposed to the user via some protocol */
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PA_SUSPEND_APPLICATION = 2, /* Used by the device reservation logic */
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PA_SUSPEND_IDLE = 4, /* Used by module-suspend-on-idle */
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PA_SUSPEND_SESSION = 8, /* Used by module-hal for mark inactive sessions */
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PA_SUSPEND_PASSTHROUGH = 16, /* Used to suspend monitor sources when the sink is in passthrough mode */
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PA_SUSPEND_INTERNAL = 32, /* This is used for short period server-internal suspends, such as for sample rate updates */
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PA_SUSPEND_ALL = 0xFFFF /* Magic cause that can be used to resume forcibly */
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} pa_suspend_cause_t;
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#include <pulsecore/idxset.h>
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#include <pulsecore/hashmap.h>
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#include <pulsecore/memblock.h>
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#include <pulsecore/resampler.h>
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#include <pulsecore/llist.h>
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#include <pulsecore/hook-list.h>
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#include <pulsecore/asyncmsgq.h>
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#include <pulsecore/sample-util.h>
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#include <pulsecore/sink.h>
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#include <pulsecore/source.h>
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#include <pulsecore/core-subscribe.h>
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#include <pulsecore/msgobject.h>
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typedef enum pa_server_type {
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PA_SERVER_TYPE_UNSET,
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PA_SERVER_TYPE_USER,
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PA_SERVER_TYPE_SYSTEM,
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PA_SERVER_TYPE_NONE
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} pa_server_type_t;
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typedef enum pa_core_state {
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PA_CORE_STARTUP,
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PA_CORE_RUNNING,
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PA_CORE_SHUTDOWN
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} pa_core_state_t;
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typedef enum pa_core_hook {
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PA_CORE_HOOK_SINK_NEW,
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PA_CORE_HOOK_SINK_FIXATE,
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PA_CORE_HOOK_SINK_PUT,
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PA_CORE_HOOK_SINK_UNLINK,
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PA_CORE_HOOK_SINK_UNLINK_POST,
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PA_CORE_HOOK_SINK_STATE_CHANGED,
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PA_CORE_HOOK_SINK_PROPLIST_CHANGED,
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PA_CORE_HOOK_SINK_PORT_CHANGED,
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PA_CORE_HOOK_SINK_FLAGS_CHANGED,
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PA_CORE_HOOK_SOURCE_NEW,
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PA_CORE_HOOK_SOURCE_FIXATE,
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PA_CORE_HOOK_SOURCE_PUT,
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PA_CORE_HOOK_SOURCE_UNLINK,
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PA_CORE_HOOK_SOURCE_UNLINK_POST,
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PA_CORE_HOOK_SOURCE_STATE_CHANGED,
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PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED,
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PA_CORE_HOOK_SOURCE_PORT_CHANGED,
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PA_CORE_HOOK_SOURCE_FLAGS_CHANGED,
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PA_CORE_HOOK_SINK_INPUT_NEW,
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PA_CORE_HOOK_SINK_INPUT_FIXATE,
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PA_CORE_HOOK_SINK_INPUT_PUT,
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PA_CORE_HOOK_SINK_INPUT_UNLINK,
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PA_CORE_HOOK_SINK_INPUT_UNLINK_POST,
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PA_CORE_HOOK_SINK_INPUT_MOVE_START,
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PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH,
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PA_CORE_HOOK_SINK_INPUT_MOVE_FAIL,
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PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED,
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PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED,
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PA_CORE_HOOK_SINK_INPUT_SEND_EVENT,
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PA_CORE_HOOK_SOURCE_OUTPUT_NEW,
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PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE,
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PA_CORE_HOOK_SOURCE_OUTPUT_PUT,
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PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK,
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PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST,
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PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START,
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PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH,
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PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL,
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PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED,
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PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED,
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PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT,
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PA_CORE_HOOK_CLIENT_NEW,
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PA_CORE_HOOK_CLIENT_PUT,
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PA_CORE_HOOK_CLIENT_UNLINK,
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PA_CORE_HOOK_CLIENT_PROPLIST_CHANGED,
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PA_CORE_HOOK_CLIENT_SEND_EVENT,
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PA_CORE_HOOK_CARD_NEW,
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PA_CORE_HOOK_CARD_PUT,
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PA_CORE_HOOK_CARD_UNLINK,
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PA_CORE_HOOK_CARD_PROFILE_CHANGED,
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PA_CORE_HOOK_CARD_PROFILE_ADDED,
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PA_CORE_HOOK_CARD_PROFILE_AVAILABLE_CHANGED,
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PA_CORE_HOOK_PORT_AVAILABLE_CHANGED,
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PA_CORE_HOOK_PORT_LATENCY_OFFSET_CHANGED,
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PA_CORE_HOOK_MAX
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} pa_core_hook_t;
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/* The core structure of PulseAudio. Every PulseAudio daemon contains
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* exactly one of these. It is used for storing kind of global
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* variables for the daemon. */
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struct pa_core {
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pa_msgobject parent;
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pa_core_state_t state;
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/* A random value which may be used to identify this instance of
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* PulseAudio. Not cryptographically secure in any way. */
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uint32_t cookie;
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pa_mainloop_api *mainloop;
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/* idxset of all kinds of entities */
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pa_idxset *clients, *cards, *sinks, *sources, *sink_inputs, *source_outputs, *modules, *scache;
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/* Some hashmaps for all sorts of entities */
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pa_hashmap *namereg, *shared;
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/* The default sink/source */
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pa_source *default_source;
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pa_sink *default_sink;
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pa_channel_map default_channel_map;
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pa_sample_spec default_sample_spec;
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uint32_t alternate_sample_rate;
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unsigned default_n_fragments, default_fragment_size_msec;
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unsigned deferred_volume_safety_margin_usec;
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int deferred_volume_extra_delay_usec;
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pa_defer_event *module_defer_unload_event;
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pa_defer_event *subscription_defer_event;
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PA_LLIST_HEAD(pa_subscription, subscriptions);
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PA_LLIST_HEAD(pa_subscription_event, subscription_event_queue);
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pa_subscription_event *subscription_event_last;
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pa_mempool *mempool;
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pa_silence_cache silence_cache;
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pa_time_event *exit_event;
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pa_time_event *scache_auto_unload_event;
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int exit_idle_time, scache_idle_time;
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pa_bool_t flat_volumes:1;
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pa_bool_t disallow_module_loading:1;
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pa_bool_t disallow_exit:1;
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pa_bool_t running_as_daemon:1;
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pa_bool_t realtime_scheduling:1;
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pa_bool_t disable_remixing:1;
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pa_bool_t disable_lfe_remixing:1;
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pa_bool_t deferred_volume:1;
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pa_resample_method_t resample_method;
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int realtime_priority;
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pa_server_type_t server_type;
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pa_cpu_info cpu_info;
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/* hooks */
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pa_hook hooks[PA_CORE_HOOK_MAX];
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};
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PA_DECLARE_PUBLIC_CLASS(pa_core);
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#define PA_CORE(o) pa_core_cast(o)
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enum {
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PA_CORE_MESSAGE_UNLOAD_MODULE,
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PA_CORE_MESSAGE_MAX
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};
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pa_core* pa_core_new(pa_mainloop_api *m, pa_bool_t shared, size_t shm_size);
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/* Check whether no one is connected to this core */
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void pa_core_check_idle(pa_core *c);
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int pa_core_exit(pa_core *c, pa_bool_t force, int retval);
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void pa_core_maybe_vacuum(pa_core *c);
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/* wrapper for c->mainloop->time_*() RT time events */
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pa_time_event* pa_core_rttime_new(pa_core *c, pa_usec_t usec, pa_time_event_cb_t cb, void *userdata);
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void pa_core_rttime_restart(pa_core *c, pa_time_event *e, pa_usec_t usec);
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#endif
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