mirror of
https://github.com/taosdata/TDengine
synced 2026-05-24 10:09:01 +00:00
133 lines
No EOL
2.9 KiB
C
133 lines
No EOL
2.9 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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#include "tcoding.h"
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#include "metaDef.h"
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static SMeta *metaNew(const char *path, const SMetaCfg *pMetaCfg, SMemAllocatorFactory *pMAF);
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static void metaFree(SMeta *pMeta);
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static int metaOpenImpl(SMeta *pMeta);
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static void metaCloseImpl(SMeta *pMeta);
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SMeta *metaOpen(const char *path, const SMetaCfg *pMetaCfg, SMemAllocatorFactory *pMAF) {
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SMeta *pMeta = NULL;
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// Set default options
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if (pMetaCfg == NULL) {
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pMetaCfg = &defaultMetaOptions;
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}
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// // Validate the options
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// if (metaValidateOptions(pMetaCfg) < 0) {
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// // TODO: deal with error
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// return NULL;
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// }
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// Allocate handle
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pMeta = metaNew(path, pMetaCfg, pMAF);
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if (pMeta == NULL) {
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// TODO: handle error
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return NULL;
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}
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// Create META path (TODO)
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taosMkDir(path);
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// Open meta
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if (metaOpenImpl(pMeta) < 0) {
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metaFree(pMeta);
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return NULL;
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}
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return pMeta;
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}
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void metaClose(SMeta *pMeta) {
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if (pMeta) {
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metaCloseImpl(pMeta);
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metaFree(pMeta);
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}
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}
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void metaRemove(const char *path) { taosRemoveDir(path); }
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/* ------------------------ STATIC METHODS ------------------------ */
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static SMeta *metaNew(const char *path, const SMetaCfg *pMetaCfg, SMemAllocatorFactory *pMAF) {
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SMeta *pMeta;
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size_t psize = strlen(path);
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pMeta = (SMeta *)calloc(1, sizeof(*pMeta));
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if (pMeta == NULL) {
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return NULL;
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}
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pMeta->path = strdup(path);
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if (pMeta->path == NULL) {
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metaFree(pMeta);
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return NULL;
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}
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metaOptionsCopy(&(pMeta->options), pMetaCfg);
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pMeta->pmaf = pMAF;
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return pMeta;
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};
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static void metaFree(SMeta *pMeta) {
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if (pMeta) {
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tfree(pMeta->path);
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free(pMeta);
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}
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}
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static int metaOpenImpl(SMeta *pMeta) {
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// Open meta cache
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if (metaOpenCache(pMeta) < 0) {
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// TODO: handle error
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metaCloseImpl(pMeta);
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return -1;
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}
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// Open meta db
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if (metaOpenDB(pMeta) < 0) {
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// TODO: handle error
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metaCloseImpl(pMeta);
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return -1;
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}
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// Open meta index
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if (metaOpenIdx(pMeta) < 0) {
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// TODO: handle error
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metaCloseImpl(pMeta);
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return -1;
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}
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// Open meta table uid generator
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if (metaOpenUidGnrt(pMeta) < 0) {
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// TODO: handle error
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metaCloseImpl(pMeta);
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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 void metaCloseImpl(SMeta *pMeta) {
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metaCloseUidGnrt(pMeta);
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metaCloseIdx(pMeta);
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metaCloseDB(pMeta);
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metaCloseCache(pMeta);
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} |