108 lines
2.7 KiB
C
108 lines
2.7 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef TDENGINE_DNODE_TIER_H
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#define TDENGINE_DNODE_TIER_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "hash.h"
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#include "taoserror.h"
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#define DNODE_MAX_TIERS 3
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#define DNODE_MAX_DISKS_PER_TIER 16
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typedef struct {
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int level;
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int did;
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} SDiskID;
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typedef struct {
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uint64_t size;
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uint64_t free;
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uint64_t nfiles;
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} SDiskMeta;
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typedef struct {
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char dir[TSDB_FILENAME_LEN];
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SDiskMeta dmeta;
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} SDisk;
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typedef struct {
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int level;
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int nDisks;
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SDisk disks[DNODE_MAX_DISKS_PER_TIER];
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} STier;
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typedef struct {
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pthread_rwlock_t rwlock;
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int nTiers;
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STier tiers[DNODE_MAX_TIERS];
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SHashObj * map;
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} SDnodeTier;
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#define DNODE_PRIMARY_DISK(pDnodeTier) (&(pDnodeTier)->tiers[0].disks[0])
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static FORCE_INLINE int dnodeRLockTiers(SDnodeTier *pDnodeTier) {
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int code = pthread_rwlock_rdlock(&(pDnodeTier->rwlock));
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if (code != 0) {
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terrno = TAOS_SYSTEM_ERROR(code);
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return -1;
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}
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return 0;
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}
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static FORCE_INLINE int dnodeWLockTiers(SDnodeTier *pDnodeTier) {
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int code = pthread_rwlock_wrlock(&(pDnodeTier->rwlock));
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if (code != 0) {
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terrno = TAOS_SYSTEM_ERROR(code);
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return -1;
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}
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return 0;
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}
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static FORCE_INLINE int dnodeUnLockTiers(SDnodeTier *pDnodeTier) {
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int code = pthread_rwlock_unlock(&(pDnodeTier->rwlock));
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if (code != 0) {
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terrno = TAOS_SYSTEM_ERROR(code);
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return -1;
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}
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return 0;
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}
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static FORCE_INLINE SDisk *dnodeGetDisk(SDnodeTier *pDnodeTier, int level, int did) {
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if (level < 0 || level >= pDnodeTier->nTiers) return NULL;
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if (did < 0 || did >= pDnodeTier->tiers[level].nDisks) return NULL;
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return &(pDnodeTier->tiers[level].disks[did]);
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}
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SDnodeTier *dnodeNewTier();
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void * dnodeCloseTier(SDnodeTier *pDnodeTier);
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int dnodeAddDisk(SDnodeTier *pDnodeTier, char *dir, int level);
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int dnodeUpdateTiersInfo(SDnodeTier *pDnodeTier);
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int dnodeCheckTiers(SDnodeTier *pDnodeTier);
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SDisk * dnodeAssignDisk(SDnodeTier *pDnodeTier, int level);
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SDisk * dnodeGetDiskByName(SDnodeTier *pDnodeTier, char *dirName);
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#ifdef __cplusplus
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}
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#endif
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#endif
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