--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/OdbcCommon.h Mon May 25 19:36:06 2020 +0200
@@ -0,0 +1,53 @@
+/**
+ * Relational pipes
+ * Copyright © 2020 František Kučera (Frantovo.cz, GlobalCode.info)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * 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. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include <sql.h>
+
+#include "SqlException.h"
+
+namespace relpipe {
+namespace tr {
+namespace sql {
+
+class OdbcCommon {
+public:
+
+ static bool isSuccessful(SQLRETURN result) {
+ return result == SQL_SUCCESS || result == SQL_SUCCESS_WITH_INFO;
+ }
+
+ static bool isNotSuccessful(SQLRETURN result) {
+ return !isSuccessful(result);
+ }
+
+ static SQLHANDLE allocateHandle(SQLSMALLINT type, SQLHANDLE input) {
+ SQLHANDLE output;
+ SQLRETURN result = SQLAllocHandle(type, input, &output);
+ if (isNotSuccessful(result)) throw SqlException(L"Unable to allocate handle " + std::to_wstring(type));
+ return output;
+ }
+
+ static void freeHandle(SQLSMALLINT type, SQLHANDLE handle) {
+ SQLRETURN result = SQLFreeHandle(type, handle);
+ if (isNotSuccessful(result)) throw SqlException(L"Unable to free handle of type: " + std::to_wstring(type));
+ }
+};
+
+}
+}
+}
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