homework-jianmu/source/dnode/vnode/src/sma/smaUtil.c

313 lines
8.6 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 "sma.h"
// smaFileUtil ================
#if 0
#define TD_FILE_STATE_OK 0
#define TD_FILE_STATE_BAD 1
#define TD_FILE_INIT_MAGIC 0xFFFFFFFF
static int32_t tdEncodeTFInfo(void **buf, STFInfo *pInfo);
static void *tdDecodeTFInfo(void *buf, STFInfo *pInfo);
static int32_t tdEncodeTFInfo(void **buf, STFInfo *pInfo) {
int32_t tlen = 0;
tlen += taosEncodeFixedU32(buf, pInfo->magic);
tlen += taosEncodeFixedU32(buf, pInfo->ftype);
tlen += taosEncodeFixedU32(buf, pInfo->fver);
tlen += taosEncodeFixedI64(buf, pInfo->fsize);
return tlen;
}
static void *tdDecodeTFInfo(void *buf, STFInfo *pInfo) {
buf = taosDecodeFixedU32(buf, &(pInfo->magic));
buf = taosDecodeFixedU32(buf, &(pInfo->ftype));
buf = taosDecodeFixedU32(buf, &(pInfo->fver));
buf = taosDecodeFixedI64(buf, &(pInfo->fsize));
return buf;
}
int64_t tdWriteTFile(STFile *pTFile, void *buf, int64_t nbyte) {
ASSERT(TD_TFILE_OPENED(pTFile));
int64_t nwrite = taosWriteFile(pTFile->pFile, buf, nbyte);
if (nwrite < nbyte) {
terrno = TAOS_SYSTEM_ERROR(errno);
return -1;
}
return nwrite;
}
int64_t tdSeekTFile(STFile *pTFile, int64_t offset, int whence) {
ASSERT(TD_TFILE_OPENED(pTFile));
int64_t loffset = taosLSeekFile(TD_TFILE_PFILE(pTFile), offset, whence);
if (loffset < 0) {
terrno = TAOS_SYSTEM_ERROR(errno);
return -1;
}
return loffset;
}
int64_t tdGetTFileSize(STFile *pTFile, int64_t *size) {
ASSERT(TD_TFILE_OPENED(pTFile));
return taosFStatFile(pTFile->pFile, size, NULL);
}
int64_t tdReadTFile(STFile *pTFile, void *buf, int64_t nbyte) {
ASSERT(TD_TFILE_OPENED(pTFile));
int64_t nread = taosReadFile(pTFile->pFile, buf, nbyte);
if (nread < 0) {
terrno = TAOS_SYSTEM_ERROR(errno);
return -1;
}
return nread;
}
int32_t tdUpdateTFileHeader(STFile *pTFile) {
char buf[TD_FILE_HEAD_SIZE] = "\0";
if (tdSeekTFile(pTFile, 0, SEEK_SET) < 0) {
return -1;
}
void *ptr = buf;
tdEncodeTFInfo(&ptr, &(pTFile->info));
taosCalcChecksumAppend(0, (uint8_t *)buf, TD_FILE_HEAD_SIZE);
if (tdWriteTFile(pTFile, buf, TD_FILE_HEAD_SIZE) < 0) {
return -1;
}
return 0;
}
int32_t tdLoadTFileHeader(STFile *pTFile, STFInfo *pInfo) {
char buf[TD_FILE_HEAD_SIZE] = "\0";
uint32_t _version;
ASSERT(TD_TFILE_OPENED(pTFile));
if (tdSeekTFile(pTFile, 0, SEEK_SET) < 0) {
return -1;
}
if (tdReadTFile(pTFile, buf, TD_FILE_HEAD_SIZE) < 0) {
return -1;
}
if (!taosCheckChecksumWhole((uint8_t *)buf, TD_FILE_HEAD_SIZE)) {
terrno = TSDB_CODE_FILE_CORRUPTED;
return -1;
}
void *pBuf = buf;
pBuf = tdDecodeTFInfo(pBuf, pInfo);
return 0;
}
void tdUpdateTFileMagic(STFile *pTFile, void *pCksm) {
pTFile->info.magic = taosCalcChecksum(pTFile->info.magic, (uint8_t *)(pCksm), sizeof(TSCKSUM));
}
int64_t tdAppendTFile(STFile *pTFile, void *buf, int64_t nbyte, int64_t *offset) {
ASSERT(TD_TFILE_OPENED(pTFile));
int64_t toffset;
if ((toffset = tdSeekTFile(pTFile, 0, SEEK_END)) < 0) {
return -1;
}
#if 0
smaDebug("append to file %s, offset:%" PRIi64 " nbyte:%" PRIi64 " fsize:%" PRIi64, TD_TFILE_FULL_NAME(pTFile),
toffset, nbyte, toffset + nbyte);
#endif
ASSERT(pTFile->info.fsize == toffset);
if (offset) {
*offset = toffset;
}
if (tdWriteTFile(pTFile, buf, nbyte) < 0) {
return -1;
}
pTFile->info.fsize += nbyte;
return nbyte;
}
int32_t tdOpenTFile(STFile *pTFile, int flags) {
ASSERT(!TD_TFILE_OPENED(pTFile));
pTFile->pFile = taosOpenFile(TD_TFILE_FULL_NAME(pTFile), flags);
if (pTFile->pFile == NULL) {
terrno = TAOS_SYSTEM_ERROR(errno);
return -1;
}
return 0;
}
void tdCloseTFile(STFile *pTFile) {
if (TD_TFILE_OPENED(pTFile)) {
taosCloseFile(&pTFile->pFile);
TD_TFILE_SET_CLOSED(pTFile);
}
}
void tdDestroyTFile(STFile *pTFile) { taosMemoryFreeClear(TD_TFILE_FULL_NAME(pTFile)); }
#endif
void tdGetVndFileName(int32_t vgId, const char *pdname, const char *dname, const char *fname, int64_t version,
char *outputName) {
if (version < 0) {
if (pdname) {
snprintf(outputName, TSDB_FILENAME_LEN, "%s%svnode%svnode%d%s%s%sv%d%s", pdname, TD_DIRSEP, TD_DIRSEP, vgId,
TD_DIRSEP, dname, TD_DIRSEP, vgId, fname);
} else {
snprintf(outputName, TSDB_FILENAME_LEN, "vnode%svnode%d%s%s%sv%d%s", TD_DIRSEP, vgId, TD_DIRSEP, dname, TD_DIRSEP,
vgId, fname);
}
} else {
if (pdname) {
snprintf(outputName, TSDB_FILENAME_LEN, "%s%svnode%svnode%d%s%s%sv%d%s%" PRIi64, pdname, TD_DIRSEP, TD_DIRSEP,
vgId, TD_DIRSEP, dname, TD_DIRSEP, vgId, fname, version);
} else {
snprintf(outputName, TSDB_FILENAME_LEN, "vnode%svnode%d%s%s%sv%d%s%" PRIi64, TD_DIRSEP, vgId, TD_DIRSEP, dname,
TD_DIRSEP, vgId, fname, version);
}
}
}
void tdGetVndDirName(int32_t vgId, const char *pdname, const char *dname, bool endWithSep, char *outputName) {
if (pdname) {
if (endWithSep) {
snprintf(outputName, TSDB_FILENAME_LEN, "%s%svnode%svnode%d%s%s%s", pdname, TD_DIRSEP, TD_DIRSEP, vgId, TD_DIRSEP,
dname, TD_DIRSEP);
} else {
snprintf(outputName, TSDB_FILENAME_LEN, "%s%svnode%svnode%d%s%s", pdname, TD_DIRSEP, TD_DIRSEP, vgId, TD_DIRSEP,
dname);
}
} else {
if (endWithSep) {
snprintf(outputName, TSDB_FILENAME_LEN, "vnode%svnode%d%s%s%s", TD_DIRSEP, vgId, TD_DIRSEP, dname, TD_DIRSEP);
} else {
snprintf(outputName, TSDB_FILENAME_LEN, "vnode%svnode%d%s%s", TD_DIRSEP, vgId, TD_DIRSEP, dname);
}
}
}
#if 0
int32_t tdInitTFile(STFile *pTFile, const char *dname, const char *fname) {
TD_TFILE_SET_STATE(pTFile, TD_FILE_STATE_OK);
TD_TFILE_SET_CLOSED(pTFile);
memset(&(pTFile->info), 0, sizeof(pTFile->info));
pTFile->info.magic = TD_FILE_INIT_MAGIC;
char tmpName[TSDB_FILENAME_LEN * 2 + 32] = {0};
snprintf(tmpName, TSDB_FILENAME_LEN * 2 + 32, "%s%s%s", dname, TD_DIRSEP, fname);
int32_t tmpNameLen = strlen(tmpName) + 1;
pTFile->fname = taosMemoryMalloc(tmpNameLen);
if (!pTFile->fname) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return -1;
}
tstrncpy(pTFile->fname, tmpName, tmpNameLen);
return 0;
}
int32_t tdCreateTFile(STFile *pTFile, bool updateHeader, int8_t fType) {
ASSERT(pTFile->info.fsize == 0 && pTFile->info.magic == TD_FILE_INIT_MAGIC);
pTFile->pFile = taosOpenFile(TD_TFILE_FULL_NAME(pTFile), TD_FILE_CREATE | TD_FILE_WRITE | TD_FILE_TRUNC);
if (pTFile->pFile == NULL) {
if (errno == ENOENT) {
// Try to create directory recursively
char *s = strdup(TD_TFILE_FULL_NAME(pTFile));
if (taosMulMkDir(taosDirName(s)) != 0) {
terrno = TAOS_SYSTEM_ERROR(errno);
taosMemoryFree(s);
return -1;
}
taosMemoryFree(s);
pTFile->pFile = taosOpenFile(TD_TFILE_FULL_NAME(pTFile), TD_FILE_CREATE | TD_FILE_WRITE | TD_FILE_TRUNC);
if (pTFile->pFile == NULL) {
terrno = TAOS_SYSTEM_ERROR(errno);
return -1;
}
}
}
if (!updateHeader) {
return 0;
}
pTFile->info.fsize += TD_FILE_HEAD_SIZE;
pTFile->info.fver = 0;
if (tdUpdateTFileHeader(pTFile) < 0) {
tdCloseTFile(pTFile);
tdRemoveTFile(pTFile);
return -1;
}
return 0;
}
int32_t tdRemoveTFile(STFile *pTFile) {
if (taosRemoveFile(TD_TFILE_FULL_NAME(pTFile)) != 0) {
terrno = TAOS_SYSTEM_ERROR(errno);
return -1;
};
return 0;
}
#endif
// smaXXXUtil ================
void *tdAcquireSmaRef(int32_t rsetId, int64_t refId) {
void *pResult = taosAcquireRef(rsetId, refId);
if (!pResult) {
smaWarn("rsma acquire ref for rsetId:%d refId:%" PRIi64 " failed since %s", rsetId, refId, terrstr());
} else {
smaTrace("rsma acquire ref for rsetId:%d refId:%" PRIi64 " success", rsetId, refId);
}
return pResult;
}
int32_t tdReleaseSmaRef(int32_t rsetId, int64_t refId) {
if (taosReleaseRef(rsetId, refId) < 0) {
smaWarn("rsma release ref for rsetId:%d refId:%" PRIi64 " failed since %s", rsetId, refId, terrstr());
return TSDB_CODE_FAILED;
}
smaTrace("rsma release ref for rsetId:%d refId:%" PRIi64 " success", rsetId, refId);
return TSDB_CODE_SUCCESS;
}