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sink, source: Assign to s->muted from only one place

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Forcing all mute changes to go through set_mute() makes it easier to
check where the muted field is changed, and it also allows us to have
only one place where notifications for changed mute are sent.
This commit is contained in:
Tanu Kaskinen 2014-04-15 13:56:10 +03:00
parent dbd2a8f851
commit e4a7625ba8
7 changed files with 87 additions and 64 deletions
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24
src/pulsecore/sink.h
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@ -58,6 +58,8 @@ static inline bool PA_SINK_IS_LINKED(pa_sink_state_t x) {
/* A generic definition for void callback functions */
typedef void(*pa_sink_cb_t)(pa_sink *s);
typedef int (*pa_sink_get_mute_cb_t)(pa_sink *s, bool *mute);
struct pa_sink {
pa_msgobject parent;
@ -191,14 +193,24 @@ struct pa_sink {
* set this callback. */
pa_sink_cb_t write_volume; /* may be NULL */
/* Called when the mute setting is queried. A PA_SINK_MESSAGE_GET_MUTE
* message will also be sent. Called from IO thread if PA_SINK_DEFERRED_VOLUME
* flag is set otherwise from main loop context. If refresh_mute is false
* neither this function is called nor a message is sent.
/* If the sink mute can change "spontaneously" (i.e. initiated by the sink
* implementation, not by someone else calling pa_sink_set_mute()), then
* the sink implementation can notify about changed mute either by calling
* pa_sink_mute_changed() or by calling pa_sink_get_mute() with
* force_refresh=true. If the implementation chooses the latter approach,
* it should implement the get_mute callback. Otherwise get_mute can be
* NULL.
*
* This is called when pa_sink_get_mute() is called with
* force_refresh=true. This is called from the IO thread if the
* PA_SINK_DEFERRED_VOLUME flag is set, otherwise this is called from the
* main thread. On success, the implementation is expected to return 0 and
* set the mute parameter that is passed as a reference. On failure, the
* implementation is expected to return -1.
*
* You must use the function pa_sink_set_get_mute_callback() to
* set this callback. */
pa_sink_cb_t get_mute; /* may be NULL */
pa_sink_get_mute_cb_t get_mute;
/* Called when the mute setting shall be changed. A PA_SINK_MESSAGE_SET_MUTE
* message will also be sent. Called from IO thread if PA_SINK_DEFERRED_VOLUME
@ -379,7 +391,7 @@ pa_sink* pa_sink_new(
void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb);
void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb);
void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb);
void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_cb_t cb);
void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_get_mute_cb_t cb);
void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb);
void pa_sink_enable_decibel_volume(pa_sink *s, bool enable);