commit 8b3efdb322551aaf432334c16a23f52789c22989
from: Omar Polo <op@omarpolo.com>
date: Fri May 12 22:31:07 2023 UTC

alsa: set up the onmove callback

With this the alsa backend reports the progresses too, forgot
previously.

commit - 440c29a48baee8e864752653f5cca6ea842cfd1e
commit + 8b3efdb322551aaf432334c16a23f52789c22989
blob - 768c7c7b80ed2fcbb6b05e4bcc63d5fd23729c73
blob + 07f43795676ea21645ad6ae56597c54673a035e1
--- audio_alsa.c
+++ audio_alsa.c
@@ -25,9 +25,10 @@
 
 static snd_pcm_t	*pcm;
 static size_t		 bpf;
+static void		(*onmove_cb)(void *, int);
 
 int
-audio_open(void (*onmove_cb)(void *, int))
+audio_open(void (*cb)(void *, int))
 {
 	const char	*device = "default";
 	int		 err;
@@ -39,7 +40,7 @@ audio_open(void (*onmove_cb)(void *, int))
 		return -1;
 	}
 
-	/* TODO: set up onmove callback? */
+	onmove_cb = cb;
 	return 0;
 }
 
@@ -143,6 +144,8 @@ audio_write(const void *buf, size_t len)
 		log_warnx("snd_pcm_writei failed: %s", snd_strerror(ret));
 		return 0;
 	}
+	if (onmove_cb)
+		onmove_cb(NULL, ret);
 	return ret * bpf;
 }