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core: change configured_default_sink/source type to string

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This allows us to restore the default device properly when a
hotpluggable device (e.g. a USB sound card) is set as the default, but
unplugged temporarily. Previously we would forget that the unplugged
device was ever set as the default, because we had to set
configured_default_sink to NULL to avoid having a stale pa_sink pointer,
and also because module-default-device-restore couldn't resolve the name
of a currently-unplugged device to a pa_sink pointer.

BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=89934
This commit is contained in:
Tanu Kaskinen 2017-06-30 00:09:34 +03:00
parent abdd14d5e0
commit a448cc587c
9 changed files with 63 additions and 56 deletions
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13
src/pulsecore/core.h
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@ -163,9 +163,12 @@ struct pa_core {
pa_hashmap *namereg, *shared;
/* The default sink/source as configured by the user. If the user hasn't
* explicitly configured anything, these are set to NULL. */
pa_sink *configured_default_sink;
pa_source *configured_default_source;
* explicitly configured anything, these are set to NULL. These are strings
* instead of sink/source pointers, because that allows us to reference
* devices that don't currently exist. That's useful for remembering that
* a hotplugged USB sink was previously set as the default sink. */
char *configured_default_sink;
char *configured_default_source;
/* The effective default sink/source. If no sink or source is explicitly
* configured as the default, we pick the device that ranks highest
@ -236,8 +239,8 @@ enum {
pa_core* pa_core_new(pa_mainloop_api *m, bool shared, bool enable_memfd, size_t shm_size);
void pa_core_set_configured_default_sink(pa_core *core, pa_sink *sink);
void pa_core_set_configured_default_source(pa_core *core, pa_source *source);
void pa_core_set_configured_default_sink(pa_core *core, const char *sink);
void pa_core_set_configured_default_source(pa_core *core, const char *source);
/* These should be called whenever something changes that may affect the
* default sink or source choice.