60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
|
/*
|
||
|
|
* CDDL HEADER START
|
||
|
|
*
|
||
|
|
* This file and its contents are supplied under the terms of the
|
||
|
|
* Common Development and Distribution License ("CDDL"), version 1.0.
|
||
|
|
* You may only use this file in accordance with the terms of version
|
||
|
|
* 1.0 of the CDDL.
|
||
|
|
*
|
||
|
|
* A full copy of the text of the CDDL should have accompanied this
|
||
|
|
* source. A copy of the CDDL is also available via the Internet at
|
||
|
|
* http://www.illumos.org/license/CDDL.
|
||
|
|
*
|
||
|
|
* CDDL HEADER END
|
||
|
|
*/
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2017 by Delphix. All rights reserved.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _SYS_AGGSUM_H
|
||
|
|
#define _SYS_AGGSUM_H
|
||
|
|
|
||
|
|
#include <sys/zfs_context.h>
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
typedef struct aggsum_bucket aggsum_bucket_t;
|
||
|
|
|
||
|
|
struct aggsum_bucket {
|
||
|
|
kmutex_t asc_lock;
|
||
|
|
int64_t asc_delta;
|
||
|
|
uint64_t asc_borrowed;
|
||
|
|
} ____cacheline_aligned;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Fan out over FANOUT cpus.
|
||
|
|
*/
|
||
|
|
typedef struct aggsum {
|
||
|
|
kmutex_t as_lock;
|
||
|
|
int64_t as_lower_bound;
|
||
|
|
int64_t as_upper_bound;
|
||
|
|
uint_t as_numbuckets;
|
||
|
|
aggsum_bucket_t *as_buckets;
|
||
|
|
} aggsum_t;
|
||
|
|
|
||
|
|
void aggsum_init(aggsum_t *, uint64_t);
|
||
|
|
void aggsum_fini(aggsum_t *);
|
||
|
|
int64_t aggsum_lower_bound(aggsum_t *);
|
||
|
|
int64_t aggsum_upper_bound(aggsum_t *);
|
||
|
|
int aggsum_compare(aggsum_t *, uint64_t);
|
||
|
|
uint64_t aggsum_value(aggsum_t *);
|
||
|
|
void aggsum_add(aggsum_t *, int64_t);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* _SYS_AGGSUM_H */
|