1 files changed, 62 insertions, 0 deletions
diff --git a/sound/core/seq/seq_prioq.h b/sound/core/seq/seq_prioq.h
new file mode 100644
index 00000000000..f12af79308b
--- /dev/null
+++ b/sound/core/seq/seq_prioq.h
@@ -0,0 +1,62 @@
+/*
+ *   ALSA sequencer Priority Queue
+ *   Copyright (c) 1998 by Frank van de Pol <fvdpol@coil.demon.nl>
+ *
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+#ifndef __SND_SEQ_PRIOQ_H
+#define __SND_SEQ_PRIOQ_H
+
+#include "seq_memory.h"
+
+
+/* === PRIOQ === */
+
+typedef struct {
+	snd_seq_event_cell_t* head;      /* pointer to head of prioq */
+	snd_seq_event_cell_t* tail;      /* pointer to tail of prioq */
+	int cells;
+	spinlock_t lock;
+} prioq_t;
+
+
+/* create new prioq (constructor) */
+extern prioq_t *snd_seq_prioq_new(void);
+
+/* delete prioq (destructor) */
+extern void snd_seq_prioq_delete(prioq_t **fifo);
+
+/* enqueue cell to prioq */
+extern int snd_seq_prioq_cell_in(prioq_t *f, snd_seq_event_cell_t *cell);
+
+/* dequeue cell from prioq */ 
+extern snd_seq_event_cell_t *snd_seq_prioq_cell_out(prioq_t *f);
+
+/* return number of events available in prioq */
+extern int snd_seq_prioq_avail(prioq_t *f);
+
+/* peek at cell at the head of the prioq */
+extern snd_seq_event_cell_t *snd_seq_prioq_cell_peek(prioq_t *f);
+
+/* client left queue */
+extern void snd_seq_prioq_leave(prioq_t *f, int client, int timestamp);        
+
+/* Remove events */
+void snd_seq_prioq_remove_events(prioq_t * f, int client,
+	snd_seq_remove_events_t *info);
+
+#endif