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pactl: Add signal receiver

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This commit is contained in:
Georg Chini 2020-12-28 16:11:54 +01:00
parent 6f07cd10ec
commit c44209d3b8
2 changed files with 21 additions and 1 deletions
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2
man/pactl.1.xml.in
View file

@ -303,7 +303,7 @@ License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
<option>
<p><opt>subscribe</opt></p>
<optdesc><p>Subscribe to events, pactl does not exit by itself, but keeps waiting for new events.</p></optdesc>
<optdesc><p>Subscribe to events and signals, pactl does not exit by itself, but keeps waiting for new events.</p></optdesc>
</option>
</section>

20
src/utils/pactl.c
View file

@ -2225,6 +2225,17 @@ static void context_subscribe_callback(pa_context *c, pa_subscription_event_type
fflush(stdout);
}
static void context_signal_callback(pa_context *c, const char *signal_object_path, const char *signal, char *signal_parameters, void *userdata) {
pa_assert(c);
printf(_("Signal '%s' from %s\n"),
signal,
signal_object_path);
if (signal_parameters)
printf(_("Signal parameters: '%s'\n"), signal_parameters);
fflush(stdout);
}
static void context_state_callback(pa_context *c, void *userdata) {
pa_operation *o = NULL;
@ -2495,6 +2506,15 @@ static void context_state_callback(pa_context *c, void *userdata) {
PA_SUBSCRIPTION_MASK_CARD,
NULL,
NULL);
if (o) {
pa_operation_unref(o);
actions++;
}
pa_context_set_signal_callback(c, context_signal_callback, NULL);
o = pa_context_subscribe_signals(c, (uint64_t) -1, NULL, NULL);
break;
default: