wip midi

src/midi.c

@@ -4,15 +4,6 @@
 #include "log.h"
 #include "types.h"
 
-void midi_close(MidiDevice device) {
-  if (device.input != NULL) {
-    snd_rawmidi_close(device.input);
-  }
-  if (device.output != NULL) {
-    snd_rawmidi_close(device.input);
-  }
-}
-
 MidiDevice midi_open(char *name) {
   MidiDevice device;
 
@@ -24,16 +15,12 @@ MidiDevice midi_open(char *name) {
 
   device.error = device.input == NULL || device.output == NULL;
 
-  if (device.error) {
-    midi_close(device);
-  }
-
   log_debug("(%s) MIDI open", name);
 
   return device;
 }
 
-void midi_background_listen(MidiDevice device, SharedContext *context) {
+bool midi_background_listen(MidiDevice device, SharedContext *context) {
   pid_t pid;
   int bytes_read;
   unsigned char buffer[3];
@@ -41,10 +28,10 @@ void midi_background_listen(MidiDevice device, SharedContext *context) {
   pid = fork();
   if (pid < 0) {
     log_error("Could not create subprocess");
-    return;
+    return false;
   }
   if (pid == 0) {
-    return;
+    return true;
   }
   log_info("(%s) background acquisition started (pid: %d)", device.name, pid);
 
@@ -57,7 +44,5 @@ void midi_background_listen(MidiDevice device, SharedContext *context) {
 
   log_info("(%s) background acquisition stopped by main thread (pid: %d)",
            device.name, pid);
+  return false;
 }
-
-// int bytes_read = snd_rawmidi_read(input, input_buffer, sizeof(input_buffer));
-// snd_rawmidi_write(output, buffer, 3);