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45 lines
1.2 KiB
45 lines
1.2 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* ALSA sequencer Priority Queue |
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* Copyright (c) 1998 by Frank van de Pol <[email protected]> |
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*/ |
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#ifndef __SND_SEQ_PRIOQ_H |
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#define __SND_SEQ_PRIOQ_H |
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#include "seq_memory.h" |
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/* === PRIOQ === */ |
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struct snd_seq_prioq { |
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struct snd_seq_event_cell *head; /* pointer to head of prioq */ |
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struct snd_seq_event_cell *tail; /* pointer to tail of prioq */ |
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int cells; |
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spinlock_t lock; |
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}; |
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/* create new prioq (constructor) */ |
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struct snd_seq_prioq *snd_seq_prioq_new(void); |
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/* delete prioq (destructor) */ |
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void snd_seq_prioq_delete(struct snd_seq_prioq **fifo); |
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/* enqueue cell to prioq */ |
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int snd_seq_prioq_cell_in(struct snd_seq_prioq *f, struct snd_seq_event_cell *cell); |
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/* dequeue cell from prioq */ |
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struct snd_seq_event_cell *snd_seq_prioq_cell_out(struct snd_seq_prioq *f, |
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void *current_time); |
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/* return number of events available in prioq */ |
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int snd_seq_prioq_avail(struct snd_seq_prioq *f); |
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/* client left queue */ |
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void snd_seq_prioq_leave(struct snd_seq_prioq *f, int client, int timestamp); |
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/* Remove events */ |
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void snd_seq_prioq_remove_events(struct snd_seq_prioq *f, int client, |
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struct snd_seq_remove_events *info); |
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#endif
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