- upgrade to db-4.2.52.

CVS patchset: 6972
CVS date: 2003/12/15 21:42:09

1 files changed, 67 insertions, 0 deletions

diff --git a/db/cxx/cxx_multi.cpp b/db/cxx/cxx_multi.cpp
new file mode 100644
index 000000000..be6287a3c
--- /dev/null
+++ b/db/cxx/cxx_multi.cpp
@@ -0,0 +1,67 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1997-2003
+ *	Sleepycat Software.  All rights reserved.
+ */
+
+#include "db_config.h"
+
+#ifndef lint
+static const char revid[] = "$Id: cxx_multi.cpp,v 1.3 2003/02/22 01:25:43 merrells Exp $";
+#endif /* not lint */
+
+#include "db_cxx.h"
+
+DbMultipleIterator::DbMultipleIterator(const Dbt &dbt)
+ : data_((u_int8_t*)dbt.get_data()),
+   p_((u_int32_t*)(data_ + dbt.get_size() - sizeof(u_int32_t)))
+{
+}
+
+bool DbMultipleDataIterator::next(Dbt &data)
+{
+	if (*p_ == (u_int32_t)-1) {
+		data.set_data(0);
+		data.set_size(0);
+		p_ = 0;
+	} else {
+		data.set_data(data_ + *p_--);
+		data.set_size(*p_--);
+		if (data.get_size() == 0 && data.get_data() == data_)
+			data.set_data(0);
+	}
+	return (data.get_data() != 0);
+}
+
+bool DbMultipleKeyDataIterator::next(Dbt &key, Dbt &data)
+{
+	if (*p_ == (u_int32_t)-1) {
+		key.set_data(0);
+		key.set_size(0);
+		data.set_data(0);
+		data.set_size(0);
+		p_ = 0;
+	} else {
+		key.set_data(data_ + *p_--);
+		key.set_size(*p_--);
+		data.set_data(data_ + *p_--);
+		data.set_size(*p_--);
+	}
+	return (data.get_data() != 0);
+}
+
+bool DbMultipleRecnoDataIterator::next(db_recno_t &recno, Dbt &data)
+{
+	if (*p_ == (u_int32_t)0) {
+		recno = 0;
+		data.set_data(0);
+		data.set_size(0);
+		p_ = 0;
+	} else {
+		recno = *p_--;
+		data.set_data(data_ + *p_--);
+		data.set_size(*p_--);
+	}
+	return (recno != 0);
+}