zfs-builds-mm/zfs-0.8.4/cmd/zed/agents/fmd_serd.h

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2020-07-19 16:21:53 +02:00
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2016, Intel Corporation.
*/
#ifndef _FMD_SERD_H
#define _FMD_SERD_H
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/list.h>
#include <sys/time.h>
typedef struct fmd_serd_elem {
list_node_t se_list; /* linked list forward/back pointers */
hrtime_t se_hrt; /* upper bound on event hrtime */
} fmd_serd_elem_t;
typedef struct fmd_serd_eng {
char *sg_name; /* string name for this engine */
struct fmd_serd_eng *sg_next; /* next engine on hash chain */
list_t sg_list; /* list of fmd_serd_elem_t's */
uint_t sg_count; /* count of events in sg_list */
uint_t sg_flags; /* engine flags (see below) */
uint_t sg_n; /* engine N parameter (event count) */
hrtime_t sg_t; /* engine T parameter (nanoseconds) */
} fmd_serd_eng_t;
#define FMD_SERD_FIRED 0x1 /* error rate has exceeded threshold */
#define FMD_SERD_DIRTY 0x2 /* engine needs to be checkpointed */
typedef void fmd_serd_eng_f(fmd_serd_eng_t *, void *);
typedef struct fmd_serd_hash {
fmd_serd_eng_t **sh_hash; /* hash bucket array for buffers */
uint_t sh_hashlen; /* length of hash bucket array */
uint_t sh_count; /* count of engines in hash */
} fmd_serd_hash_t;
extern void fmd_serd_hash_create(fmd_serd_hash_t *);
extern void fmd_serd_hash_destroy(fmd_serd_hash_t *);
extern void fmd_serd_hash_apply(fmd_serd_hash_t *, fmd_serd_eng_f *, void *);
extern fmd_serd_eng_t *fmd_serd_eng_insert(fmd_serd_hash_t *,
const char *, uint32_t, hrtime_t);
extern fmd_serd_eng_t *fmd_serd_eng_lookup(fmd_serd_hash_t *, const char *);
extern void fmd_serd_eng_delete(fmd_serd_hash_t *, const char *);
extern int fmd_serd_eng_record(fmd_serd_eng_t *, hrtime_t);
extern int fmd_serd_eng_fired(fmd_serd_eng_t *);
extern int fmd_serd_eng_empty(fmd_serd_eng_t *);
extern void fmd_serd_eng_reset(fmd_serd_eng_t *);
extern void fmd_serd_eng_gc(fmd_serd_eng_t *);
#ifdef __cplusplus
}
#endif
#endif /* _FMD_SERD_H */