added mutexes and defers to idb

src/db/idb.h

@@ -2,42 +2,15 @@
 
 #include "tlibc/errors.h"
 #include "tlibc/string/str.h"
-#include "tlibc/collections/Array.h"
-#include "tlibc/collections/HashMap.h"
 
 typedef struct IncrementalDB IncrementalDB;
+typedef struct Table Table;
 
-typedef union Magic32 {
-    u32 n;
-    u8 bytes[4];
-} Magic32;
-
-typedef struct TableHeader {
-    Magic32 magic;
-    u16 version;
-    bool _dirty_bit;
-    u32 row_size;
-} __attribute__((aligned(256))) TableHeader;
-
-typedef struct Table {
-    TableHeader header;
-    IncrementalDB* db;
-    str name;
-    str table_file_path;
-    str changes_file_path;
-    FILE* table_file;
-    FILE* changes_file;
-    u64 row_count;
-} Table;
-
-typedef struct IncrementalDB {
-    str db_dir;
-    HashMap(Table**) tables_map;
-} IncrementalDB;
 
 Result(IncrementalDB*) idb_open(str db_dir);
 void idb_close(IncrementalDB* db);
 
+
 Result(Table*) idb_getOrCreateTable(IncrementalDB* db, str _table_name, u32 row_size);
 
 Result(void) idb_getRows(Table* t, u64 id, void* dst, u64 count);
@@ -48,3 +21,5 @@ Result(u64) idb_pushRows(Table* t, const void* src, u64 count);
 
 Result(void) idb_updateRows(Table* t, u64 id, const void* src, u64 count);
 #define idb_updateRow(T, ID, SRC) idb_updateRows(T, ID, SRC, 1)
+
+Result(u64) idb_getRowCount(Table* t);