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Remove callback from cosmoaudio API

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Using callbacks is still problematic with cosmo_dlopen() due to the need
to restore the TLS register. So using callbacks is even more strict than
using signal handlers. We are better off introducing a cosmoaudio_poll()
function. It makes the API more UNIX-like. How bad could the latency be?
This commit is contained in:
Justine Tunney 2024-09-07 17:42:15 -07:00
parent d99f066114
commit d50d954a3c
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GPG key ID: BE714B4575D6E328
17 changed files with 433 additions and 158 deletions
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31
dsp/audio/describe.c
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@ -34,6 +34,8 @@ const char *cosmoaudio_describe_status(char *buf, int n, int status) {
return "COSMOAUDIO_EINVAL";
case COSMOAUDIO_ELINK:
return "COSMOAUDIO_ELINK";
case COSMOAUDIO_ENOBUF:
return "COSMOAUDIO_ENOBUF";
default:
ksnprintf(buf, n, "%d", status);
return buf;
@ -81,24 +83,11 @@ const char *cosmoaudio_describe_open_options(
gotsome = true;
}
if (options->dataCallback) {
if (options->bufferFrames) {
if (gotsome)
append(", ");
append(".dataCallback=%t", options->dataCallback);
append(".bufferFrames=%d", options->bufferFrames);
gotsome = true;
if (options->argument) {
if (gotsome)
append(", ");
append(".argument=%p", options->argument);
gotsome = true;
}
} else {
if (options->periods) {
if (gotsome)
append(", ");
append(".periods=%d", options->periods);
gotsome = true;
}
}
if (options->sizeofThis) {
@ -111,3 +100,15 @@ const char *cosmoaudio_describe_open_options(
append("}");
return buf;
}
const char *cosmoaudio_describe_poll_frames(char *buf, int n,
int *in_out_frames) {
if (!in_out_frames)
return "NULL";
if (kisdangerous(in_out_frames)) {
ksnprintf(buf, n, "%p", in_out_frames);
return buf;
}
ksnprintf(buf, n, "[%d]", *in_out_frames);
return buf;
}