1249292Smm/* 2249292Smm * CDDL HEADER START 3249292Smm * 4249292Smm * This file and its contents are supplied under the terms of the 5249292Smm * Common Development and Distribution License ("CDDL"), version 1.0. 6249292Smm * You may only use this file in accordance with the terms of version 7249292Smm * 1.0 of the CDDL. 8249292Smm * 9249292Smm * A full copy of the text of the CDDL should have accompanied this 10249292Smm * source. A copy of the CDDL is also available via the Internet at 11249292Smm * http://www.illumos.org/license/CDDL. 12249292Smm * 13249292Smm * CDDL HEADER END 14249292Smm */ 15249292Smm 16249292Smm/* 17249292Smm * Copyright (c) 2012 by Delphix. All rights reserved. 18249292Smm */ 19249292Smm 20249292Smm#ifndef _DT_PQ_H 21249292Smm#define _DT_PQ_H 22249292Smm 23249292Smm#include <dtrace.h> 24249292Smm 25249292Smm#ifdef __cplusplus 26249292Smmextern "C" { 27249292Smm#endif 28249292Smm 29249292Smmtypedef uint64_t (*dt_pq_value_f)(void *, void *); 30249292Smm 31249292Smmtypedef struct dt_pq { 32249292Smm dtrace_hdl_t *dtpq_hdl; /* dtrace handle */ 33249292Smm void **dtpq_items; /* array of elements */ 34249292Smm uint_t dtpq_size; /* count of allocated elements */ 35249292Smm uint_t dtpq_last; /* next free slot */ 36249292Smm dt_pq_value_f dtpq_value; /* callback to get the value */ 37249292Smm void *dtpq_arg; /* callback argument */ 38249292Smm} dt_pq_t; 39249292Smm 40249292Smmextern dt_pq_t *dt_pq_init(dtrace_hdl_t *, uint_t size, dt_pq_value_f, void *); 41249292Smmextern void dt_pq_fini(dt_pq_t *); 42249292Smm 43249292Smmextern void dt_pq_insert(dt_pq_t *, void *); 44249292Smmextern void *dt_pq_pop(dt_pq_t *); 45249292Smmextern void *dt_pq_walk(dt_pq_t *, uint_t *); 46249292Smm 47249292Smm#ifdef __cplusplus 48249292Smm} 49249292Smm#endif 50249292Smm 51249292Smm#endif /* _DT_PQ_H */ 52