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

276 lines
7.6 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 "tsdb.h"
int32_t tPutHeadFile(uint8_t *p, SHeadFile *pHeadFile) {
int32_t n = 0;
n += tPutI64v(p ? p + n : p, pHeadFile->commitID);
n += tPutI64v(p ? p + n : p, pHeadFile->size);
n += tPutI64v(p ? p + n : p, pHeadFile->offset);
return n;
}
static int32_t tGetHeadFile(uint8_t *p, SHeadFile *pHeadFile) {
int32_t n = 0;
n += tGetI64v(p + n, &pHeadFile->commitID);
n += tGetI64v(p + n, &pHeadFile->size);
n += tGetI64v(p + n, &pHeadFile->offset);
return n;
}
int32_t tPutDataFile(uint8_t *p, SDataFile *pDataFile) {
int32_t n = 0;
n += tPutI64v(p ? p + n : p, pDataFile->commitID);
n += tPutI64v(p ? p + n : p, pDataFile->size);
return n;
}
static int32_t tGetDataFile(uint8_t *p, SDataFile *pDataFile) {
int32_t n = 0;
n += tGetI64v(p + n, &pDataFile->commitID);
n += tGetI64v(p + n, &pDataFile->size);
return n;
}
int32_t tPutSstFile(uint8_t *p, SSstFile *pSstFile) {
int32_t n = 0;
n += tPutI64v(p ? p + n : p, pSstFile->commitID);
n += tPutI64v(p ? p + n : p, pSstFile->size);
n += tPutI64v(p ? p + n : p, pSstFile->offset);
return n;
}
static int32_t tGetSstFile(uint8_t *p, SSstFile *pSstFile) {
int32_t n = 0;
n += tGetI64v(p + n, &pSstFile->commitID);
n += tGetI64v(p + n, &pSstFile->size);
n += tGetI64v(p + n, &pSstFile->offset);
return n;
}
int32_t tPutSmaFile(uint8_t *p, SSmaFile *pSmaFile) {
int32_t n = 0;
n += tPutI64v(p ? p + n : p, pSmaFile->commitID);
n += tPutI64v(p ? p + n : p, pSmaFile->size);
return n;
}
static int32_t tGetSmaFile(uint8_t *p, SSmaFile *pSmaFile) {
int32_t n = 0;
n += tGetI64v(p + n, &pSmaFile->commitID);
n += tGetI64v(p + n, &pSmaFile->size);
return n;
}
// EXPOSED APIS ==================================================
void tsdbHeadFileName(STsdb *pTsdb, SDiskID did, int32_t fid, SHeadFile *pHeadF, char fname[]) {
snprintf(fname, TSDB_FILENAME_LEN - 1, "%s%s%s%sv%df%dver%" PRId64 "%s", tfsGetDiskPath(pTsdb->pVnode->pTfs, did),
TD_DIRSEP, pTsdb->path, TD_DIRSEP, TD_VID(pTsdb->pVnode), fid, pHeadF->commitID, ".head");
}
void tsdbDataFileName(STsdb *pTsdb, SDiskID did, int32_t fid, SDataFile *pDataF, char fname[]) {
snprintf(fname, TSDB_FILENAME_LEN - 1, "%s%s%s%sv%df%dver%" PRId64 "%s", tfsGetDiskPath(pTsdb->pVnode->pTfs, did),
TD_DIRSEP, pTsdb->path, TD_DIRSEP, TD_VID(pTsdb->pVnode), fid, pDataF->commitID, ".data");
}
void tsdbSstFileName(STsdb *pTsdb, SDiskID did, int32_t fid, SSstFile *pSstF, char fname[]) {
snprintf(fname, TSDB_FILENAME_LEN - 1, "%s%s%s%sv%df%dver%" PRId64 "%s", tfsGetDiskPath(pTsdb->pVnode->pTfs, did),
TD_DIRSEP, pTsdb->path, TD_DIRSEP, TD_VID(pTsdb->pVnode), fid, pSstF->commitID, ".sst");
}
void tsdbSmaFileName(STsdb *pTsdb, SDiskID did, int32_t fid, SSmaFile *pSmaF, char fname[]) {
snprintf(fname, TSDB_FILENAME_LEN - 1, "%s%s%s%sv%df%dver%" PRId64 "%s", tfsGetDiskPath(pTsdb->pVnode->pTfs, did),
TD_DIRSEP, pTsdb->path, TD_DIRSEP, TD_VID(pTsdb->pVnode), fid, pSmaF->commitID, ".sma");
}
bool tsdbDelFileIsSame(SDelFile *pDelFile1, SDelFile *pDelFile2) { return pDelFile1->commitID == pDelFile2->commitID; }
int32_t tsdbDFileRollback(STsdb *pTsdb, SDFileSet *pSet, EDataFileT ftype) {
int32_t code = 0;
int64_t size;
int64_t n;
TdFilePtr pFD;
char fname[TSDB_FILENAME_LEN];
char hdr[TSDB_FHDR_SIZE] = {0};
// truncate
switch (ftype) {
case TSDB_DATA_FILE:
size = pSet->pDataF->size;
tsdbDataFileName(pTsdb, pSet->diskId, pSet->fid, pSet->pDataF, fname);
tPutDataFile(hdr, pSet->pDataF);
break;
case TSDB_SMA_FILE:
size = pSet->pSmaF->size;
tsdbSmaFileName(pTsdb, pSet->diskId, pSet->fid, pSet->pSmaF, fname);
tPutSmaFile(hdr, pSet->pSmaF);
break;
default:
ASSERT(0);
}
taosCalcChecksumAppend(0, hdr, TSDB_FHDR_SIZE);
// open
pFD = taosOpenFile(fname, TD_FILE_WRITE);
if (pFD == NULL) {
code = TAOS_SYSTEM_ERROR(errno);
goto _err;
}
// ftruncate
if (taosFtruncateFile(pFD, size) < 0) {
code = TAOS_SYSTEM_ERROR(errno);
goto _err;
}
// update header
n = taosLSeekFile(pFD, 0, SEEK_SET);
if (n < 0) {
code = TAOS_SYSTEM_ERROR(errno);
goto _err;
}
n = taosWriteFile(pFD, hdr, TSDB_FHDR_SIZE);
if (n < 0) {
code = TAOS_SYSTEM_ERROR(errno);
goto _err;
}
// sync
if (taosFsyncFile(pFD) < 0) {
code = TAOS_SYSTEM_ERROR(errno);
goto _err;
}
// close
taosCloseFile(&pFD);
return code;
_err:
tsdbError("vgId:%d, tsdb rollback file failed since %s", TD_VID(pTsdb->pVnode), tstrerror(code));
return code;
}
int32_t tPutDFileSet(uint8_t *p, SDFileSet *pSet) {
int32_t n = 0;
n += tPutI32v(p ? p + n : p, pSet->diskId.level);
n += tPutI32v(p ? p + n : p, pSet->diskId.id);
n += tPutI32v(p ? p + n : p, pSet->fid);
// data
n += tPutHeadFile(p ? p + n : p, pSet->pHeadF);
n += tPutDataFile(p ? p + n : p, pSet->pDataF);
n += tPutSmaFile(p ? p + n : p, pSet->pSmaF);
// sst
n += tPutU8(p ? p + n : p, pSet->nSstF);
for (int32_t iSst = 0; iSst < pSet->nSstF; iSst++) {
n += tPutSstFile(p ? p + n : p, pSet->aSstF[iSst]);
}
return n;
}
int32_t tGetDFileSet(uint8_t *p, SDFileSet *pSet) {
int32_t n = 0;
n += tGetI32v(p + n, &pSet->diskId.level);
n += tGetI32v(p + n, &pSet->diskId.id);
n += tGetI32v(p + n, &pSet->fid);
// head
pSet->pHeadF = (SHeadFile *)taosMemoryCalloc(1, sizeof(SHeadFile));
if (pSet->pHeadF == NULL) {
return -1;
}
pSet->pHeadF->nRef = 1;
n += tGetHeadFile(p + n, pSet->pHeadF);
// data
pSet->pDataF = (SDataFile *)taosMemoryCalloc(1, sizeof(SDataFile));
if (pSet->pDataF == NULL) {
return -1;
}
pSet->pDataF->nRef = 1;
n += tGetDataFile(p + n, pSet->pDataF);
// sma
pSet->pSmaF = (SSmaFile *)taosMemoryCalloc(1, sizeof(SSmaFile));
if (pSet->pSmaF == NULL) {
return -1;
}
pSet->pSmaF->nRef = 1;
n += tGetSmaFile(p + n, pSet->pSmaF);
// sst
n += tGetU8(p + n, &pSet->nSstF);
for (int32_t iSst = 0; iSst < pSet->nSstF; iSst++) {
pSet->aSstF[iSst] = (SSstFile *)taosMemoryCalloc(1, sizeof(SSstFile));
if (pSet->aSstF[iSst] == NULL) {
return -1;
}
pSet->aSstF[iSst]->nRef = 1;
n += tGetSstFile(p + n, pSet->aSstF[iSst]);
}
return n;
}
// SDelFile ===============================================
void tsdbDelFileName(STsdb *pTsdb, SDelFile *pFile, char fname[]) {
snprintf(fname, TSDB_FILENAME_LEN - 1, "%s%s%s%sv%dver%" PRId64 "%s", tfsGetPrimaryPath(pTsdb->pVnode->pTfs),
TD_DIRSEP, pTsdb->path, TD_DIRSEP, TD_VID(pTsdb->pVnode), pFile->commitID, ".del");
}
int32_t tPutDelFile(uint8_t *p, SDelFile *pDelFile) {
int32_t n = 0;
n += tPutI64v(p ? p + n : p, pDelFile->commitID);
n += tPutI64v(p ? p + n : p, pDelFile->size);
n += tPutI64v(p ? p + n : p, pDelFile->offset);
return n;
}
int32_t tGetDelFile(uint8_t *p, SDelFile *pDelFile) {
int32_t n = 0;
n += tGetI64v(p + n, &pDelFile->commitID);
n += tGetI64v(p + n, &pDelFile->size);
n += tGetI64v(p + n, &pDelFile->offset);
return n;
}