more

src/vnode/tsdb/inc/tsdb.h

@@ -29,7 +29,7 @@ typedef struct {
 
 // Submit message for one table
 typedef struct {
-  STableId tid;
+  STableId tableId;
   int32_t  sversion;   // data schema version
   int32_t  numOfRows;  // number of rows data
   char     data[];
@@ -47,20 +47,20 @@ typedef struct {
 } STsdbCfg;
 
 // the TSDB repository info
-typedef struct STSDBRepoInfo {
+typedef struct STsdbRepoInfo {
   STsdbCfg tsdbCfg;
   int64_t  version;            // version of the repository
   int64_t  tsdbTotalDataSize;  // the original inserted data size
   int64_t  tsdbTotalDiskSize;  // the total disk size taken by this TSDB repository
   // TODO: Other informations to add
-} STSDBRepoInfo;
+} STsdbRepoInfo;
 
 // the meter configuration
 typedef struct {
   char *   tableName;
   STableId tableId;
 
-  char *stableName;  // if not NULL, the table is created from a super table, need to make sure the super
+  char *superTable;  // if not NULL, the table is created from a super table, need to make sure the super
                      // table exists in this TSDB.
   int64_t stableUid;
 
@@ -83,6 +83,7 @@ typedef struct {
 
 /**
  * Create a new TSDB repository
+ * @param rootDir the TSDB repository root directory
  * @param pCfg the TSDB repository configuration, upper layer to free the pointer
  *
  * @return a TSDB repository handle on success, NULL for failure and the error number is set
@@ -131,7 +132,7 @@ int32_t tsdbConfigRepo(tsdb_repo_t *repo, STsdbCfg *pCfg);
  * @return a info struct handle on success, NULL for failure and the error number is set. The upper
  *         layers should free the info handle themselves or memory leak will occur
  */
-STSDBRepoInfo *tsdbGetStatus(tsdb_repo_t *pRepo);
+STsdbRepoInfo *tsdbGetStatus(tsdb_repo_t *pRepo);
 
 // -- For table manipulation
 

src/vnode/tsdb/inc/tsdbMeta.h

@@ -51,17 +51,16 @@ typedef struct STable {
   // A handle to deal with stream
   void *streamHandle;
 
+  struct STable *next;
+
 } STable;
 
 typedef struct {
-  int32_t numOfTables;       // Number of tables not including TSDB_SUPER_TABLE (#TSDB_NTABLE + #TSDB_STABLE)
+  int32_t          maxTables;
   int32_t          numOfSuperTables;  // Number of super tables (#TSDB_SUPER_TABLE)
-  // An array of tables (TSDB_NTABLE and TSDB_STABLE) in this TSDB repository
-  STable **pTables;
-
-  // A map of tableName->tableId
-  // TODO: May use hash table
-  void *pNameTableMap;
+  STable **        tables;            // array of normal tables
+  STable *         stables;           // linked list of super tables
+  void *           tableMap;          // table map of name ==> table
 } STsdbMeta;
 
 // ---- Operation on STable
@@ -84,10 +83,10 @@ SSchema *tsdbGetTableSchema(STable *pTable);
 #define TSDB_GET_TABLE_OF_NAME(pHandle, name) /* TODO */
 
 // Create a new meta handle with configuration
-STsdbMeta * tsdbCreateMeta (int32_t maxTables);
+STsdbMeta *tsdbCreateMeta(int32_t maxTables);
 int32_t    tsdbFreeMeta(STsdbMeta *pMeta);
 
 // Recover the meta handle from the file
-STsdbMeta * tsdbOpenMetaHandle(char *tsdbDir);
+STsdbMeta *tsdbOpenMetaHandle(char *tsdbDir);
 
 int32_t tsdbCreateTableImpl(STsdbMeta *pHandle, STableCfg *pCfg);

src/vnode/tsdb/src/tsdbMain.c

@@ -175,7 +175,7 @@ int32_t tsdbConfigRepo(tsdb_repo_t *repo, STsdbCfg *pCfg) {
   return 0;
 }
 
-STSDBRepoInfo *tsdbGetStatus(tsdb_repo_t *pRepo) {
+STsdbRepoInfo *tsdbGetStatus(tsdb_repo_t *pRepo) {
   // TODO
 }
 

src/vnode/tsdb/src/tsdbMeta.c

@@ -4,24 +4,34 @@
 #include "tsdb.h"
 #include "tsdbMeta.h"
 
+#define TSDB_MIN_TABLES 10
+#define TSDB_MAX_TABLES 100000
+#define TSDB_DEFAULT_NSTABLES 10
+
+#define IS_VALID_MAX_TABLES(maxTables) (((maxTables) >= TSDB_MIN_TABLES) && ((maxTables) >= TSDB_MAX_TABLES))
+
+static int tsdbFreeTable(STable *pTable);
+
 STsdbMeta *tsdbCreateMeta(int32_t maxTables) {
+  if (!IS_VALID_MAX_TABLES(maxTables)) return NULL;
+
   STsdbMeta *pMeta = (STsdbMeta *)malloc(sizeof(STsdbMeta));
   if (pMeta == NULL) {
     return NULL;
   }
 
-  pMeta->numOfTables = 0;
+  pMeta->maxTables = maxTables;
   pMeta->numOfSuperTables = 0;
-  pMeta->pTables = calloc(sizeof(STable *), maxTables);
-  if (pMeta->pTables == NULL) {
+  pMeta->stables = NULL;
+  pMeta->tables = (STable **)calloc(maxTables, sizeof(STable *));
+  if (pMeta->tables == NULL) {
     free(pMeta);
     return NULL;
   }
 
   // TODO : initialize the map
-  // pMetahandle->pNameTableMap = ;
-  if (pMeta->pNameTableMap == NULL) {
-    free(pMeta->pTables);
+  if (pMeta->tableMap == NULL) {
+    free(pMeta->tables);
     free(pMeta);
     return NULL;
   }
@@ -30,11 +40,32 @@ STsdbMeta *tsdbCreateMeta(int32_t maxTables) {
 }
 
 int32_t tsdbFreeMeta(STsdbMeta *pMeta) {
+  if (pMeta == NULL) return 0;
+
+  for (int i = 0; i < pMeta->maxTables; i++) {
+    if (pMeta->tables[i] != NULL) {
+      tsdbFreeTable(pMeta->tables[i]);
+    }
+  }
+
+  free(pMeta->tables);
+
+  STable *pTable = pMeta->stables;
+  while (pTable != NULL) {
+    STable *pTemp = pTable;
+    pTable = pTemp->next;
+    tsdbFreeTable(pTemp);
+  }
+  // TODO close the map
+
+  free(pMeta);
+
+  return 0;
 }
 
 static int32_t tsdbCheckTableCfg(STableCfg *pCfg) { return 0; }
 
-int32_t tsdbCreateTableImpl(STsdbMeta *pHandle, STableCfg *pCfg) {
+int32_t tsdbCreateTableImpl(STsdbMeta *pMeta, STableCfg *pCfg) {
   if (tsdbCheckTableCfg(pCfg) < 0) {
     return -1;
   }
@@ -45,19 +76,21 @@ int32_t tsdbCreateTableImpl(STsdbMeta *pHandle, STableCfg *pCfg) {
     return -1;
   }
 
-  pHandle->pTables[pCfg->tableId.tid] = pTable;
+  pMeta->tables[pCfg->tableId.tid] = pTable;
 
   // TODO: add name to it
   return 0;
 }
 
-STsdbMeta * tsdbOpenMetaHandle(char *tsdbDir) {
+STsdbMeta *tsdbOpenMetaHandle(char *tsdbDir) {
   // Open meta file for reading
 
-  STsdbMeta *pHandle = (STsdbMeta *)malloc(sizeof(STsdbMeta));
-  if (pHandle == NULL) {
+  STsdbMeta *pMeta = (STsdbMeta *)malloc(sizeof(STsdbMeta));
+  if (pMeta == NULL) {
     return NULL;
   }
 
-  return pHandle;
+  return pMeta;
 }
+
+static int tsdbFreeTable(STable *pTable) { return 0; }
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