feat(lsm): sync database when closing handle

lsm/src/_include/lsm/store_internal.h

@@ -88,4 +88,25 @@ struct lsm_store {
  */
 lsm_error lsm_store_load_db(lsm_store *store);
 
+/**
+ * Close & free the handle without updating the database
+ *
+ * @param handle handle to close
+ */
+void lsm_entry_close_no_disk(lsm_entry_handle *handle);
+
+/**
+ * Write a new insert to the database.
+ *
+ * @param handle handle to added entry
+ */
+lsm_error lsm_entry_disk_insert(lsm_entry_handle *handle);
+
+/**
+ * Remove an entry from the database
+ *
+ * @param handle handle to the removed entry
+ */
+lsm_error lsm_entry_disk_remove(lsm_entry_handle *handle);
+
 #endif

lsm/src/store/lsm_store_disk_read.c

@@ -172,7 +172,7 @@ lsm_error lsm_store_load_db(lsm_store *store) {
       LSM_RES(lsm_entry_read_attrs(NULL, handle, store->db_file));
 
       handle->wrapper->entry->idx_file_offset = idx_file_offset;
-      lsm_entry_close(handle);
+      lsm_entry_close_no_disk(handle);
 
       store->db_file_size += db_dim[1];
     }

lsm/src/store/lsm_store_disk_write.c

@@ -75,7 +75,7 @@ lsm_error lsm_write_idx_entry(uint64_t *size, FILE *idx_file, lsm_entry *entry,
   return lsm_error_ok;
 }
 
-lsm_error lsm_entry_sync(lsm_entry_handle *handle) {
+lsm_error lsm_entry_disk_insert(lsm_entry_handle *handle) {
   lsm_store *store = handle->store;
 
   pthread_mutex_lock(&store->db_lock);

lsm/src/store/lsm_store_entry.c

@@ -47,13 +47,19 @@ lsm_error lsm_entry_handle_init(lsm_entry_handle **out) {
   return lsm_error_ok;
 }
 
+void lsm_entry_close_no_disk(lsm_entry_handle *handle) {
+  pthread_rwlock_unlock(&handle->wrapper->lock);
+  free(handle);
+}
+
 void lsm_entry_close(lsm_entry_handle *handle) {
   if (handle->f != NULL) {
     fclose(handle->f);
   }
 
-  pthread_rwlock_unlock(&handle->wrapper->lock);
-  free(handle);
+  // TODO handle errors here
+  lsm_entry_disk_insert(handle);
+  lsm_entry_close_no_disk(handle);
 }
 
 bool lsm_entry_attr_present(lsm_entry_handle *handle, uint8_t type) {