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TD-27

This commit is contained in:
hzcheng 2020-03-18 11:28:56 +08:00
parent 47f6402cbe
commit c4b19166b3
3 changed files with 38 additions and 4 deletions
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2
src/vnode/tsdb/inc/tsdbMetaFile.h
View File

@ -31,7 +31,7 @@ typedef void (*afterFunc)(void *);
typedef struct {
int fd; // File descriptor
int nDel; // number of deletions
int tombSize; // Number of records
int tombSize; // deleted size
int64_t size; // Total file size
void * map; // Map from uid ==> position
iterFunc iFunc;

13
src/vnode/tsdb/src/tsdbMeta.c
View File

@ -241,9 +241,22 @@ int32_t tsdbCreateTableImpl(STsdbMeta *pMeta, STableCfg *pCfg) {
}
table->content.pData = tSkipListCreate(TSDB_SUPER_TABLE_SL_LEVEL, TSDB_DATA_TYPE_TIMESTAMP, TYPE_BYTES[TSDB_DATA_TYPE_TIMESTAMP], 0, 0, getTupleKey);
// Register to meta
if (newSuper) tsdbAddTableToMeta(pMeta, super, true);
tsdbAddTableToMeta(pMeta, table, true);
// Write to meta file
int bufLen = 0;
if (newSuper) {
void *buf = tsdbEncodeTable(super, &bufLen);
tsdbInsertMetaRecord(pMeta->mfh, super->tableId.uid, buf, bufLen);
tsdbFreeEncode(buf);
}
void *buf = tsdbEncodeTable(table, &bufLen);
tsdbInsertMetaRecord(pMeta->mfh, table->tableId.uid, buf, bufLen);
tsdbFreeEncode(buf);
return 0;
}

27
src/vnode/tsdb/src/tsdbMetaFile.c
View File

@ -45,6 +45,9 @@ SMetaFile *tsdbInitMetaFile(char *rootDir, int32_t maxTables, iterFunc iFunc, af
mfh->iFunc = iFunc;
mfh->aFunc = aFunc;
mfh->appH = appH;
mfh->nDel = 0;
mfh->tombSize = 0;
mfh->size = 0;
// OPEN MAP
mfh->map =
@ -62,6 +65,7 @@ SMetaFile *tsdbInitMetaFile(char *rootDir, int32_t maxTables, iterFunc iFunc, af
free(mfh);
return NULL;
}
mfh->size += TSDB_META_FILE_HEADER_SIZE;
} else { // file exists, recover from file
if (tsdbRestoreFromMetaFile(fname, mfh) < 0) {
taosHashCleanup(mfh->map);
@ -80,7 +84,7 @@ int32_t tsdbInsertMetaRecord(SMetaFile *mfh, int64_t uid, void *cont, int32_t co
SRecordInfo info;
info.offset = mfh->size;
info.size = contLen; // TODO: Here is not correct
info.size = contLen;
info.uid = uid;
mfh->size += (contLen + sizeof(SRecordInfo));
@ -90,7 +94,7 @@ int32_t tsdbInsertMetaRecord(SMetaFile *mfh, int64_t uid, void *cont, int32_t co
}
// TODO: make below a function to implement
if (lseek(mfh->fd, info.offset, SEEK_CUR) < 0) {
if (lseek(mfh->fd, info.offset, SEEK_SET) < 0) {
return -1;
}
@ -196,6 +200,11 @@ static int32_t tsdbWriteMetaHeader(int fd) {
return 0;
}
static int32_t tsdbReadMetaHeader(int fd) {
lseek(fd, TSDB_META_FILE_HEADER_SIZE, SEEK_SET);
return 0;
}
static int tsdbCreateMetaFile(char *fname) {
int fd = open(fname, O_RDWR | O_CREAT, 0755);
if (fd < 0) return -1;
@ -229,6 +238,8 @@ static int tsdbRestoreFromMetaFile(char *fname, SMetaFile *mfh) {
return -1;
}
mfh->size += TSDB_META_FILE_HEADER_SIZE;
mfh->fd = fd;
void *buf = NULL;
@ -241,20 +252,30 @@ static int tsdbRestoreFromMetaFile(char *fname, SMetaFile *mfh) {
mfh->size += (info.size + sizeof(SRecordInfo));
mfh->tombSize += (info.size + sizeof(SRecordInfo));
lseek(mfh->fd, info.size, SEEK_CUR);
mfh->size = mfh->size + sizeof(SRecordInfo) + info.size;
mfh->tombSize = mfh->tombSize + sizeof(SRecordInfo) + info.size;
} else {
if (taosHashPut(mfh->map, (char *)(&info.uid), sizeof(info.uid), (void *)(&info), sizeof(SRecordInfo)) < 0) {
if (buf) free(buf);
return -1;
}
buf = realloc(buf, info.size);
if (buf == NULL) return -1;
if (read(mfh->fd, buf, info.size) < 0) return -1;
if (read(mfh->fd, buf, info.size) < 0) {
if (buf) free(buf);
return -1;
}
(*mfh->iFunc)(mfh->appH, buf, info.size);
mfh->size = mfh->size + sizeof(SRecordInfo) + info.size;
}
}
(*mfh->aFunc)(mfh->appH);
if (buf) free(buf);
return 0;
}