diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/sound/core/seq/seq_prioq.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (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.h | 62 |
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 new file mode 100644 index 000000000..d38bb78d9 --- /dev/null +++ b/kernel/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 === */ + +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 |