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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/sound/core/seq/seq_prioq.h
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/sound/core/seq/seq_prioq.h')
-rw-r--r--kernel/sound/core/seq/seq_prioq.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/kernel/sound/core/seq/seq_prioq.h b/kernel/sound/core/seq/seq_prioq.h
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index 000000000..d38bb78d9
--- /dev/null
+++ b/kernel/sound/core/seq/seq_prioq.h
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+/*
+ * 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 === */
+
+struct snd_seq_prioq {
+ struct snd_seq_event_cell *head; /* pointer to head of prioq */
+ struct snd_seq_event_cell *tail; /* pointer to tail of prioq */
+ int cells;
+ spinlock_t lock;
+};
+
+
+/* create new prioq (constructor) */
+struct snd_seq_prioq *snd_seq_prioq_new(void);
+
+/* delete prioq (destructor) */
+void snd_seq_prioq_delete(struct snd_seq_prioq **fifo);
+
+/* enqueue cell to prioq */
+int snd_seq_prioq_cell_in(struct snd_seq_prioq *f, struct snd_seq_event_cell *cell);
+
+/* dequeue cell from prioq */
+struct snd_seq_event_cell *snd_seq_prioq_cell_out(struct snd_seq_prioq *f);
+
+/* return number of events available in prioq */
+int snd_seq_prioq_avail(struct snd_seq_prioq *f);
+
+/* peek at cell at the head of the prioq */
+struct snd_seq_event_cell *snd_seq_prioq_cell_peek(struct snd_seq_prioq *f);
+
+/* client left queue */
+void snd_seq_prioq_leave(struct snd_seq_prioq *f, int client, int timestamp);
+
+/* Remove events */
+void snd_seq_prioq_remove_events(struct snd_seq_prioq *f, int client,
+ struct snd_seq_remove_events *info);
+
+#endif