145 lines
4 KiB
C
145 lines
4 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/nvpair.h>
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#include <sys/fs/zfs.h>
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#include <libzutil.h>
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static void
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dump_ddt_stat(const ddt_stat_t *dds, int h)
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{
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char refcnt[6];
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char blocks[6], lsize[6], psize[6], dsize[6];
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char ref_blocks[6], ref_lsize[6], ref_psize[6], ref_dsize[6];
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if (dds == NULL || dds->dds_blocks == 0)
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return;
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if (h == -1)
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(void) strcpy(refcnt, "Total");
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else
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zfs_nicenum(1ULL << h, refcnt, sizeof (refcnt));
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zfs_nicenum(dds->dds_blocks, blocks, sizeof (blocks));
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zfs_nicebytes(dds->dds_lsize, lsize, sizeof (lsize));
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zfs_nicebytes(dds->dds_psize, psize, sizeof (psize));
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zfs_nicebytes(dds->dds_dsize, dsize, sizeof (dsize));
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zfs_nicenum(dds->dds_ref_blocks, ref_blocks, sizeof (ref_blocks));
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zfs_nicebytes(dds->dds_ref_lsize, ref_lsize, sizeof (ref_lsize));
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zfs_nicebytes(dds->dds_ref_psize, ref_psize, sizeof (ref_psize));
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zfs_nicebytes(dds->dds_ref_dsize, ref_dsize, sizeof (ref_dsize));
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(void) printf("%6s %6s %5s %5s %5s %6s %5s %5s %5s\n",
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refcnt,
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blocks, lsize, psize, dsize,
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ref_blocks, ref_lsize, ref_psize, ref_dsize);
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}
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/*
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* Print the DDT histogram and the column totals.
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*/
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void
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zpool_dump_ddt(const ddt_stat_t *dds_total, const ddt_histogram_t *ddh)
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{
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int h;
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(void) printf("\n");
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(void) printf("bucket "
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" allocated "
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" referenced \n");
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(void) printf("______ "
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"______________________________ "
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"______________________________\n");
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(void) printf("%6s %6s %5s %5s %5s %6s %5s %5s %5s\n",
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"refcnt",
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"blocks", "LSIZE", "PSIZE", "DSIZE",
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"blocks", "LSIZE", "PSIZE", "DSIZE");
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(void) printf("%6s %6s %5s %5s %5s %6s %5s %5s %5s\n",
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"------",
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"------", "-----", "-----", "-----",
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"------", "-----", "-----", "-----");
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for (h = 0; h < 64; h++)
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dump_ddt_stat(&ddh->ddh_stat[h], h);
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dump_ddt_stat(dds_total, -1);
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(void) printf("\n");
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}
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/*
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* Process the buffer of nvlists, unpacking and storing each nvlist record
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* into 'records'. 'leftover' is set to the number of bytes that weren't
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* processed as there wasn't a complete record.
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*/
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int
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zpool_history_unpack(char *buf, uint64_t bytes_read, uint64_t *leftover,
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nvlist_t ***records, uint_t *numrecords)
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{
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uint64_t reclen;
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nvlist_t *nv;
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int i;
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void *tmp;
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while (bytes_read > sizeof (reclen)) {
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/* get length of packed record (stored as little endian) */
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for (i = 0, reclen = 0; i < sizeof (reclen); i++)
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reclen += (uint64_t)(((uchar_t *)buf)[i]) << (8*i);
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if (bytes_read < sizeof (reclen) + reclen)
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break;
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/* unpack record */
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if (nvlist_unpack(buf + sizeof (reclen), reclen, &nv, 0) != 0)
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return (ENOMEM);
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bytes_read -= sizeof (reclen) + reclen;
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buf += sizeof (reclen) + reclen;
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/* add record to nvlist array */
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(*numrecords)++;
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if (ISP2(*numrecords + 1)) {
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tmp = realloc(*records,
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*numrecords * 2 * sizeof (nvlist_t *));
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if (tmp == NULL) {
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nvlist_free(nv);
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(*numrecords)--;
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return (ENOMEM);
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}
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*records = tmp;
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}
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(*records)[*numrecords - 1] = nv;
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}
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*leftover = bytes_read;
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return (0);
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}
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