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rawmidi_virt: fix hang on invalid MIDI data

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When writing invalid MIDI data to a virtual rawmidi port,
snd_rawmidi_virtual_write() would forget to remove that data
from the input buffer before continuing, resulting in an
infinite loop.
This commit is contained in:
Clemens Ladisch 2005-03-10 10:45:19 +00:00
parent 8003e03b50
commit e3f57ccc90
1 changed files with 2 additions and 2 deletions
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4
src/rawmidi/rawmidi_virt.c
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@ -206,11 +206,11 @@ static ssize_t snd_rawmidi_virtual_write(snd_rawmidi_t *rmidi, const void *buffe
size1 = snd_midi_event_encode(virt->midi_event, buffer, size, &virt->out_event); size1 = snd_midi_event_encode(virt->midi_event, buffer, size, &virt->out_event);
if (size1 <= 0) if (size1 <= 0)
break; break;
if (virt->out_event.type == SND_SEQ_EVENT_NONE)
continue;
size -= size1; size -= size1;
result += size1; result += size1;
buffer += size1; buffer += size1;
if (virt->out_event.type == SND_SEQ_EVENT_NONE)
continue;
snd_seq_ev_set_subs(&virt->out_event); snd_seq_ev_set_subs(&virt->out_event);
snd_seq_ev_set_source(&virt->out_event, virt->port); snd_seq_ev_set_source(&virt->out_event, virt->port);
snd_seq_ev_set_direct(&virt->out_event); snd_seq_ev_set_direct(&virt->out_event);