Add AttachmentOptions::forcedWrites

Author: asfernandes

src/fb-cpp/Attachment.cpp

@@ -57,6 +57,9 @@ Attachment::Attachment(Client& client, const std::string& uri, const AttachmentO
 	if (const auto sqlDialect = options.getSqlDialect())
 		dpbBuilder->insertInt(&statusWrapper, isc_dpb_sql_dialect, static_cast<int>(*sqlDialect));
 
+	if (const auto forcedWrites = options.getForcedWrites())
+		dpbBuilder->insertInt(&statusWrapper, isc_dpb_force_write, *forcedWrites ? 1 : 0);
+
 	auto dispatcher = fbRef(master->getDispatcher());
 	const auto dpbBuffer = dpbBuilder->getBuffer(&statusWrapper);
 	const auto dpbBufferLen = dpbBuilder->getBufferLength(&statusWrapper);

src/fb-cpp/Attachment.h

@@ -176,12 +176,30 @@ namespace fbcpp
 			return *this;
 		}
 
+		///
+		/// Returns whether forced writes should be enabled when creating the database.
+		///
+		const std::optional<bool>& getForcedWrites() const
+		{
+			return forcedWrites;
+		}
+
+		///
+		/// Sets whether forced writes should be enabled when creating the database.
+		///
+		AttachmentOptions& setForcedWrites(bool value)
+		{
+			forcedWrites = value;
+			return *this;
+		}
+
 	private:
 		std::optional<std::string> connectionCharSet;
 		std::optional<std::string> userName;
 		std::optional<std::string> password;
 		std::optional<std::string> role;
 		std::optional<std::uint32_t> sqlDialect;
+		std::optional<bool> forcedWrites;
 		std::vector<std::uint8_t> dpb;
 		bool createDatabase = false;
 	};

src/test/Attachment.cpp

@@ -25,6 +25,8 @@
 #include "TestUtil.h"
 #include "fb-cpp/Attachment.h"
 #include "fb-cpp/Exception.h"
+#include "fb-cpp/Statement.h"
+#include "fb-cpp/Transaction.h"
 #include <exception>
 
 
@@ -69,6 +71,26 @@ BOOST_AUTO_TEST_CASE(sqlDialectSetterGetter)
 	BOOST_CHECK_EQUAL(*options.getSqlDialect(), 1u);
 }
 
+BOOST_AUTO_TEST_CASE(forcedWritesDefault)
+{
+	AttachmentOptions options;
+	BOOST_CHECK(!options.getForcedWrites().has_value());
+}
+
+BOOST_AUTO_TEST_CASE(createDatabaseWithForcedWritesOff)
+{
+	const auto database = getTempFile("Attachment-createDatabaseWithForcedWritesOff.fdb");
+	Attachment attachment{CLIENT, database, AttachmentOptions().setCreateDatabase(true).setForcedWrites(false)};
+	FbDropDatabase attachmentDrop{attachment};
+
+	Transaction transaction{attachment};
+	Statement stmt{attachment, transaction, "select mon$forced_writes from mon$database"};
+	BOOST_REQUIRE(stmt.execute(transaction));
+	BOOST_REQUIRE(stmt.getInt32(0).has_value());
+	BOOST_CHECK_EQUAL(*stmt.getInt32(0), 0);
+	transaction.commit();
+}
+
 BOOST_AUTO_TEST_CASE(isNotValidAfterMove)
 {
 	const auto database = getTempFile("Attachment-isNotValidAfterMove.fdb");