update to c-api v0.6.0

Author: Ivan Dlugos

objectbox/c.py

@@ -19,7 +19,7 @@
 from objectbox.version import Version
 
 # This file contains C-API bindings based on the objectbox.h, linking to the 'objectbox' shared library
-required_version = "0.5.104"
+required_version = "0.6.0"  # don't forget to update download-c-lib.py when upgrading to a newer version
 
 
 def shlib_name(library: str) -> str:
@@ -301,10 +301,10 @@ def c_voidp_as_bytes(voidp, size):
 obx_store_close = fn('obx_store_close', obx_err, [OBX_store_p])
 
 # OBX_txn* (OBX_store* store);
-obx_txn_begin = fn('obx_txn_begin', OBX_txn_p, [OBX_store_p])
+obx_txn_write = fn('obx_txn_write', OBX_txn_p, [OBX_store_p])
 
 # OBX_txn* (OBX_store* store);
-obx_txn_begin_read = fn('obx_txn_begin_read', OBX_txn_p, [OBX_store_p])
+obx_txn_read = fn('obx_txn_read', OBX_txn_p, [OBX_store_p])
 
 # obx_err (OBX_txn* txn)
 obx_txn_close = fn('obx_txn_close', obx_err, [OBX_txn_p])
@@ -313,7 +313,7 @@ def c_voidp_as_bytes(voidp, size):
 obx_txn_abort = fn('obx_txn_abort', obx_err, [OBX_txn_p])
 
 # obx_err (OBX_txn* txn);
-obx_txn_commit = fn('obx_txn_commit', obx_err, [OBX_txn_p])
+obx_txn_success = fn('obx_txn_success', obx_err, [OBX_txn_p])
 
 # OBX_box* (OBX_store* store, obx_schema_id entity_id);
 obx_box = fn('obx_box', OBX_box_p, [OBX_store_p, obx_schema_id])

objectbox/transaction.py

@@ -18,7 +18,7 @@
 
 @contextmanager
 def read(ob: 'ObjectBox'):
-    tx = obx_txn_begin_read(ob._c_store)
+    tx = obx_txn_read(ob._c_store)
     try:
         yield
     finally:
@@ -27,16 +27,9 @@ def read(ob: 'ObjectBox'):
 
 @contextmanager
 def write(ob: 'ObjectBox'):
-    tx = obx_txn_begin(ob._c_store)
-    successful = False
+    tx = obx_txn_write(ob._c_store)
     try:
         yield
-        successful = True
+        obx_txn_success(tx)
     finally:
-        # this is better than bare `except:` because it doesn't catch stuff like KeyboardInterrupt
-        if successful:
-            obx_txn_commit(tx)
-        else:
-            obx_txn_abort(tx)
-
         obx_txn_close(tx)