refact TDB

source/libs/tdb/inc/tdb.h

@@ -22,42 +22,6 @@
 extern "C" {
 #endif
 
-// #define TDB_EXTERN
-// #define TDB_PUBLIC
-// #define TDB_STATIC static
-
-// typedef enum { TDB_BTREE_T = 0, TDB_HASH_T = 1, TDB_HEAP_T = 2 } tdb_db_t;
-
-// // Forward declarations
-// typedef struct TDB TDB;
-// // typedef struct TDB_MPOOL  TDB_MPOOL;
-// // typedef struct TDB_MPFILE TDB_MPFILE;
-// // typedef struct TDB_CURSOR TDB_CURSOR;
-
-// typedef struct {
-//   void*    bdata;
-//   uint32_t size;
-// } TDB_KEY, TDB_VALUE;
-
-// // TDB Operations
-// int tdbCreateDB(TDB** dbpp, tdb_db_t type);
-// int tdbOpenDB(TDB* dbp, const char* fname, const char* dbname, uint32_t flags);
-// int tdbCloseDB(TDB* dbp, uint32_t flags);
-// int tdbPut(TDB* dbp, const TDB_KEY* key, const TDB_VALUE* value, uint32_t flags);
-// int tdbGet(TDB* dbp, const TDB_KEY* key, TDB_VALUE* value, uint32_t flags);
-
-// // TDB_MPOOL
-// int tdbOpenMPool(TDB_MPOOL** mp);
-// int tdbCloseMPool(TDB_MPOOL* mp);
-
-// // TDB_MPFILE
-// int tdbOpenMPFile(TDB_MPFILE** mpf, TDB_MPOOL* mp);
-// int tdbCloseMPFile(TDB_MPFILE** mpf);
-
-// // TDB_CURSOR
-// int tdbOpenCursor(TDB* dbp, TDB_CURSOR** tdbcpp);
-// int tdbCloseCurosr(TDB_CURSOR* tdbcp);
-
 #ifdef __cplusplus
 }
 #endif

source/libs/tdb/src/db/btree.c

@@ -0,0 +1,14 @@
+/*
+ * 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/>.
+ */

source/libs/tdb/src/db/pgfile.c

@@ -0,0 +1,14 @@
+/*
+ * 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/>.
+ */

source/libs/tdb/src/db/tdb_util.c

@@ -13,7 +13,7 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "tdb_inc.h"
+#include "tdbInt.h"
 
 int tdbGnrtFileID(const char *fname, uint8_t *fileid) {
   struct stat statbuf;

source/libs/tdb/src/inc/btree.h

@@ -13,21 +13,21 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef _TDB_BTREE_H_
-#define _TDB_BTREE_H_
-
-#include "tdb_inc.h"
+#ifndef _TD_BTREE_H_
+#define _TD_BTREE_H_
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+typedef struct SBTree SBTree;
+
 struct SBTree {
-  pgno_t root; // root page number
+  // TODO
 };
 
 #ifdef __cplusplus
 }
 #endif
 
-#endif /*_TDB_BTREE_H_*/
+#endif /*_TD_BTREE_H_*/

source/libs/tdb/src/inc/pgcache.h

@@ -0,0 +1,46 @@
+/*
+ * 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/>.
+ */
+
+#ifndef _TD_PAGE_CACHE_H_
+#define _TD_PAGE_CACHE_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct SPgCache SPgCache;
+typedef struct SPage    SPage;
+
+// SPgCache
+int pgCacheCreate(SPgCache **ppPgCache);
+int pgCacheDestroy(SPgCache *pPgCache);
+int pgCacheOpen(SPgCache *pPgCache);
+int pgCacheClose(SPgCache *pPgCache);
+
+SPage *pgCacheFetch(SPgCache *pPgCache);
+int    pgCacheRelease(SPage *pPage);
+
+// SPage
+
+// Impl
+struct SPgCache {
+  // TODO
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_PAGE_CACHE_H_*/

source/libs/tdb/src/inc/pgfile.h

@@ -13,25 +13,17 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef _TDB_PAGE_H_
-#define _TDB_PAGE_H_
-
-#include "tdb_inc.h"
+#ifndef _TD_PAGE_FILE_H_
+#define _TD_PAGE_FILE_H_
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-// Page header
-typedef struct {
-  uint32_t magic;
-  pgno_t   pgno;   // current page number
-  pgno_t   npgno;  // next page number
-  pgno_t   ppgno;  // prev page number
-} SPgHdr;
+typedef struct SPgFile SPgFile;
 
 #ifdef __cplusplus
 }
 #endif
 
-#endif /*_TDB_PAGE_H_*/
+#endif /*_TD_PAGE_FILE_H_*/

source/libs/tdb/src/inc/tdbInt.h

@@ -13,8 +13,8 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef _TD_TDB_INC_H_
-#define _TD_TDB_INC_H_
+#ifndef _TD_TDB_INTERNAL_H_
+#define _TD_TDB_INTERNAL_H_
 
 #include "os.h"
 #include "tlist.h"
@@ -58,4 +58,4 @@ int tdbGnrtFileID(const char *fname, uint8_t *fileid);
 }
 #endif
 
-#endif /*_TD_TDB_INC_H_*/
+#endif /*_TD_TDB_INTERNAL_H_*/

source/libs/tdb/src/inc/tdb_mpool.h

@@ -16,7 +16,7 @@
 #ifndef _TD_TDB_MPOOL_H_
 #define _TD_TDB_MPOOL_H_
 
-#include "tdb_inc.h"
+#include "tdbInt.h"
 
 #ifdef __cplusplus
 extern "C" {