diff options
Diffstat (limited to 'backends/midi/alsa.cpp')
| -rw-r--r-- | backends/midi/alsa.cpp | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/backends/midi/alsa.cpp b/backends/midi/alsa.cpp index 5110734a18..28e44b445a 100644 --- a/backends/midi/alsa.cpp +++ b/backends/midi/alsa.cpp @@ -17,9 +17,6 @@ * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * $URL$ - * $Id$ */ // Disable symbol overrides so that we can use system headers. @@ -183,6 +180,11 @@ void MidiDriver_ALSA::close() { } void MidiDriver_ALSA::send(uint32 b) { + if (!_isOpen) { + warning("MidiDriver_ALSA: Got event while not open"); + return; + } + unsigned int midiCmd[4]; ev.type = SND_SEQ_EVENT_OSS; @@ -256,6 +258,11 @@ void MidiDriver_ALSA::send(uint32 b) { } void MidiDriver_ALSA::sysEx(const byte *msg, uint16 length) { + if (!_isOpen) { + warning("MidiDriver_ALSA: Got SysEx while not open"); + return; + } + unsigned char buf[266]; assert(length + 2 <= ARRAYSIZE(buf)); |