1 /* 2 * CDDL HEADER START 3 * 4 * This file and its contents are supplied under the terms of the 5 * Common Development and Distribution License ("CDDL"), version 1.0. 6 * You may only use this file in accordance with the terms of version 7 * 1.0 of the CDDL. 8 * 9 * A full copy of the text of the CDDL should have accompanied this 10 * source. A copy of the CDDL is also available via the Internet at 11 * http://www.illumos.org/license/CDDL. 12 * 13 * CDDL HEADER END 14 */ 15 /* 16 * Copyright (c) 2014 by Delphix. All rights reserved. 17 */ 18 19 #ifndef _BQUEUE_H 20 #define _BQUEUE_H 21 22 #ifdef __cplusplus 23 extern "C" { 24 #endif 25 26 #include <sys/zfs_context.h> 27 28 typedef struct bqueue { 29 list_t bq_list; 30 kmutex_t bq_lock; 31 kcondvar_t bq_add_cv; 32 kcondvar_t bq_pop_cv; 33 uint64_t bq_size; 34 uint64_t bq_maxsize; 35 size_t bq_node_offset; 36 } bqueue_t; 37 38 typedef struct bqueue_node { 39 list_node_t bqn_node; 40 uint64_t bqn_size; 41 } bqueue_node_t; 42 43 44 int bqueue_init(bqueue_t *, uint64_t, size_t); 45 void bqueue_destroy(bqueue_t *); 46 void bqueue_enqueue(bqueue_t *, void *, uint64_t); 47 void *bqueue_dequeue(bqueue_t *); 48 boolean_t bqueue_empty(bqueue_t *); 49 50 #ifdef __cplusplus 51 } 52 #endif 53 54 #endif /* _BQUEUE_H */ 55