homework-jianmu/source/dnode/vnode/src/tsdb/tsdbFile2.c

325 lines
9.8 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "tsdbFile2.h"
// to_json
static int32_t head_to_json(const STFile *file, cJSON *json);
static int32_t data_to_json(const STFile *file, cJSON *json);
static int32_t sma_to_json(const STFile *file, cJSON *json);
static int32_t tomb_to_json(const STFile *file, cJSON *json);
static int32_t stt_to_json(const STFile *file, cJSON *json);
// from_json
static int32_t head_from_json(const cJSON *json, STFile *file);
static int32_t data_from_json(const cJSON *json, STFile *file);
static int32_t sma_from_json(const cJSON *json, STFile *file);
static int32_t tomb_from_json(const cJSON *json, STFile *file);
static int32_t stt_from_json(const cJSON *json, STFile *file);
static const struct {
const char *suffix;
int32_t (*to_json)(const STFile *file, cJSON *json);
int32_t (*from_json)(const cJSON *json, STFile *file);
} g_tfile_info[] = {
[TSDB_FTYPE_HEAD] = {"head", head_to_json, head_from_json},
[TSDB_FTYPE_DATA] = {"data", data_to_json, data_from_json},
[TSDB_FTYPE_SMA] = {"sma", sma_to_json, sma_from_json},
[TSDB_FTYPE_TOMB] = {"tomb", tomb_to_json, tomb_from_json},
[TSDB_FTYPE_STT] = {"stt", stt_to_json, stt_from_json},
};
void remove_file(const char *fname) {
int32_t code = taosRemoveFile(fname);
if (code) {
tsdbError("file:%s remove failed", fname);
} else {
tsdbInfo("file:%s is removed", fname);
}
}
static int32_t tfile_to_json(const STFile *file, cJSON *json) {
/* did.level */
if (cJSON_AddNumberToObject(json, "did.level", file->did.level) == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
/* did.id */
if (cJSON_AddNumberToObject(json, "did.id", file->did.id) == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
/* fid */
if (cJSON_AddNumberToObject(json, "fid", file->fid) == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
/* cid */
if (cJSON_AddNumberToObject(json, "cid", file->cid) == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
/* size */
if (cJSON_AddNumberToObject(json, "size", file->size) == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
if (file->minVer <= file->maxVer) {
/* minVer */
if (cJSON_AddNumberToObject(json, "minVer", file->minVer) == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
/* maxVer */
if (cJSON_AddNumberToObject(json, "maxVer", file->maxVer) == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
}
return 0;
}
static int32_t tfile_from_json(const cJSON *json, STFile *file) {
const cJSON *item;
/* did.level */
item = cJSON_GetObjectItem(json, "did.level");
if (cJSON_IsNumber(item)) {
file->did.level = item->valuedouble;
} else {
return TSDB_CODE_FILE_CORRUPTED;
}
/* did.id */
item = cJSON_GetObjectItem(json, "did.id");
if (cJSON_IsNumber(item)) {
file->did.id = item->valuedouble;
} else {
return TSDB_CODE_FILE_CORRUPTED;
}
/* fid */
item = cJSON_GetObjectItem(json, "fid");
if (cJSON_IsNumber(item)) {
file->fid = item->valuedouble;
} else {
return TSDB_CODE_FILE_CORRUPTED;
}
/* cid */
item = cJSON_GetObjectItem(json, "cid");
if (cJSON_IsNumber(item)) {
file->cid = item->valuedouble;
} else {
return TSDB_CODE_FILE_CORRUPTED;
}
/* size */
item = cJSON_GetObjectItem(json, "size");
if (cJSON_IsNumber(item)) {
file->size = item->valuedouble;
} else {
return TSDB_CODE_FILE_CORRUPTED;
}
/* minVer */
file->minVer = VERSION_MAX;
item = cJSON_GetObjectItem(json, "minVer");
if (cJSON_IsNumber(item)) {
file->minVer = item->valuedouble;
}
/* maxVer */
file->maxVer = VERSION_MIN;
item = cJSON_GetObjectItem(json, "maxVer");
if (cJSON_IsNumber(item)) {
file->maxVer = item->valuedouble;
}
return 0;
}
static int32_t head_to_json(const STFile *file, cJSON *json) { return tfile_to_json(file, json); }
static int32_t data_to_json(const STFile *file, cJSON *json) { return tfile_to_json(file, json); }
static int32_t sma_to_json(const STFile *file, cJSON *json) { return tfile_to_json(file, json); }
static int32_t tomb_to_json(const STFile *file, cJSON *json) { return tfile_to_json(file, json); }
static int32_t stt_to_json(const STFile *file, cJSON *json) {
int32_t code = tfile_to_json(file, json);
if (code) return code;
/* lvl */
if (cJSON_AddNumberToObject(json, "level", file->stt->level) == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
return 0;
}
static int32_t head_from_json(const cJSON *json, STFile *file) { return tfile_from_json(json, file); }
static int32_t data_from_json(const cJSON *json, STFile *file) { return tfile_from_json(json, file); }
static int32_t sma_from_json(const cJSON *json, STFile *file) { return tfile_from_json(json, file); }
static int32_t tomb_from_json(const cJSON *json, STFile *file) { return tfile_from_json(json, file); }
static int32_t stt_from_json(const cJSON *json, STFile *file) {
int32_t code = tfile_from_json(json, file);
if (code) return code;
const cJSON *item;
/* lvl */
item = cJSON_GetObjectItem(json, "level");
if (cJSON_IsNumber(item)) {
file->stt->level = item->valuedouble;
} else {
return TSDB_CODE_FILE_CORRUPTED;
}
return 0;
}
int32_t tsdbTFileToJson(const STFile *file, cJSON *json) {
if (file->type == TSDB_FTYPE_STT) {
return g_tfile_info[file->type].to_json(file, json);
} else {
cJSON *item = cJSON_AddObjectToObject(json, g_tfile_info[file->type].suffix);
if (item == NULL) return TSDB_CODE_OUT_OF_MEMORY;
return g_tfile_info[file->type].to_json(file, item);
}
}
int32_t tsdbJsonToTFile(const cJSON *json, tsdb_ftype_t ftype, STFile *f) {
f[0] = (STFile){.type = ftype};
if (ftype == TSDB_FTYPE_STT) {
int32_t code = g_tfile_info[ftype].from_json(json, f);
if (code) return code;
} else {
const cJSON *item = cJSON_GetObjectItem(json, g_tfile_info[ftype].suffix);
if (cJSON_IsObject(item)) {
int32_t code = g_tfile_info[ftype].from_json(item, f);
if (code) return code;
} else {
return TSDB_CODE_NOT_FOUND;
}
}
return 0;
}
int32_t tsdbTFileObjInit(STsdb *pTsdb, const STFile *f, STFileObj **fobj) {
fobj[0] = taosMemoryMalloc(sizeof(*fobj[0]));
if (!fobj[0]) return TSDB_CODE_OUT_OF_MEMORY;
taosThreadMutexInit(&fobj[0]->mutex, NULL);
fobj[0]->f[0] = f[0];
fobj[0]->state = TSDB_FSTATE_LIVE;
fobj[0]->ref = 1;
tsdbTFileName(pTsdb, f, fobj[0]->fname);
return 0;
}
int32_t tsdbTFileObjRef(STFileObj *fobj) {
int32_t nRef;
taosThreadMutexLock(&fobj->mutex);
ASSERT(fobj->ref > 0 && fobj->state == TSDB_FSTATE_LIVE);
nRef = ++fobj->ref;
taosThreadMutexUnlock(&fobj->mutex);
tsdbTrace("ref file %s, fobj:%p ref %d", fobj->fname, fobj, nRef);
return 0;
}
int32_t tsdbTFileObjUnref(STFileObj *fobj) {
taosThreadMutexLock(&fobj->mutex);
int32_t nRef = --fobj->ref;
taosThreadMutexUnlock(&fobj->mutex);
ASSERT(nRef >= 0);
tsdbTrace("unref file %s, fobj:%p ref %d", fobj->fname, fobj, nRef);
if (nRef == 0) {
if (fobj->state == TSDB_FSTATE_DEAD) {
remove_file(fobj->fname);
}
taosMemoryFree(fobj);
}
return 0;
}
int32_t tsdbTFileObjRemove(STFileObj *fobj) {
taosThreadMutexLock(&fobj->mutex);
ASSERT(fobj->state == TSDB_FSTATE_LIVE && fobj->ref > 0);
fobj->state = TSDB_FSTATE_DEAD;
int32_t nRef = --fobj->ref;
taosThreadMutexUnlock(&fobj->mutex);
tsdbTrace("remove unref file %s, fobj:%p ref %d", fobj->fname, fobj, nRef);
if (nRef == 0) {
remove_file(fobj->fname);
taosMemoryFree(fobj);
}
return 0;
}
int32_t tsdbTFileName(STsdb *pTsdb, const STFile *f, char fname[]) {
SVnode *pVnode = pTsdb->pVnode;
STfs *pTfs = pVnode->pTfs;
if (pTfs) {
snprintf(fname, //
TSDB_FILENAME_LEN, //
"%s%s%s%sv%df%dver%" PRId64 ".%s", //
tfsGetDiskPath(pTfs, f->did), //
TD_DIRSEP, //
pTsdb->path, //
TD_DIRSEP, //
TD_VID(pVnode), //
f->fid, //
f->cid, //
g_tfile_info[f->type].suffix);
} else {
snprintf(fname, //
TSDB_FILENAME_LEN, //
"%s%sv%df%dver%" PRId64 ".%s", //
pTsdb->path, //
TD_DIRSEP, //
TD_VID(pVnode), //
f->fid, //
f->cid, //
g_tfile_info[f->type].suffix);
}
return 0;
}
bool tsdbIsSameTFile(const STFile *f1, const STFile *f2) {
if (f1->type != f2->type) return false;
if (f1->did.level != f2->did.level) return false;
if (f1->did.id != f2->did.id) return false;
if (f1->fid != f2->fid) return false;
if (f1->cid != f2->cid) return false;
if (f1->s3flag != f2->s3flag) return false;
return true;
}
bool tsdbIsTFileChanged(const STFile *f1, const STFile *f2) {
if (f1->size != f2->size) return true;
// if (f1->type == TSDB_FTYPE_STT && f1->stt->nseg != f2->stt->nseg) return true;
return false;
}
int32_t tsdbTFileObjCmpr(const STFileObj **fobj1, const STFileObj **fobj2) {
if (fobj1[0]->f->cid < fobj2[0]->f->cid) {
return -1;
} else if (fobj1[0]->f->cid > fobj2[0]->f->cid) {
return 1;
} else {
return 0;
}
}