Add class Rowset which define a list of row.

Makefile

@@ -50,6 +50,7 @@ TARGET_OBJS	=						\
 			$(LIBVOS_BLD_D)/FTPD_client.oo		\
 			$(LIBVOS_BLD_D)/FTPD_user.oo		\
 			$(LIBVOS_BLD_D)/FTPD.oo			\
+			$(LIBVOS_BLD_D)/Rowset.oo		\
 			$(LIBVOS_BLD_D)/SSVReader.oo
 
 #
@@ -121,6 +122,8 @@ $(LIBVOS_BLD_D)/Buffer.oo	: $(LIBVOS_BLD_D)/Object.oo
 
 $(LIBVOS_BLD_D)/List.oo		: $(LIBVOS_BLD_D)/BNode.oo
 
+$(LIBVOS_BLD_D)/Rowset.oo	: $(LIBVOS_BLD_D)/List.oo
+
 $(LIBVOS_BLD_D)/SockAddr.oo	\
 $(LIBVOS_BLD_D)/List.oo		\
 $(LIBVOS_BLD_D)/FTPClient.oo	\

Rowset.cc

@@ -0,0 +1,70 @@
+//
+// Copyright 2009-2016 M. Shulhan (ms@kilabit.info). All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+#include "Rowset.hh"
+#include "Buffer.hh"
+
+namespace vos {
+
+const char* Rowset::__cname = "Rowset";
+
+//
+// `Rowset()` will create new set of row.
+//
+Rowset::Rowset() : List('\n')
+{
+}
+
+//
+// `~Rowset()` will release all rows memory to the system.
+//
+Rowset::~Rowset()
+{}
+
+//
+// `chars()` will return string presentation of set, where each node is
+// printed from top to bottom and separated by `_sep` character.
+// The returned string is in JSON array format.
+//
+const char* Rowset::chars()
+{
+	if (_v) {
+		free(_v);
+		_v = NULL;
+	}
+
+	if (!_head) {
+		return _v;
+	}
+
+	Buffer b;
+	BNode* node = _head;
+
+	if (_head == _tail) {
+		b.concat("[ ", _head->chars(), " ]", NULL);
+		goto out;
+	}
+
+	b.append_raw("[ ");
+	while (node != _tail) {
+		b.append_raw(node->chars());
+		b.appendc(_sep);
+
+		node = node->_right;
+	}
+	b.append_raw(node->chars());
+	b.append_raw(" ]");
+
+out:
+	_v = b._v;
+	b._v = NULL;
+
+	return _v;
+}
+
+
+} // namespace vos
+// vi: ts=8 sw=8 tw=78:

Rowset.hh

@@ -0,0 +1,35 @@
+//
+// Copyright 2009-2016 M. Shulhan (ms@kilabit.info). All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+#ifndef _LIBVOS_ROWSET_HH
+#define _LIBVOS_ROWSET_HH 1
+
+#include "List.hh"
+
+namespace vos {
+
+//
+// class Rowset define a list of row.
+// Each row may contain different number of record.
+//
+class Rowset : public List {
+public:
+	Rowset();
+	virtual ~Rowset();
+
+	const char* chars();
+
+	// `__cname` contain canonical name of this object.
+	static const char* __cname;
+private:
+
+	Rowset(const Rowset&);
+	void operator=(const Rowset&);
+};
+
+} // namespace vos
+#endif
+// vi: ts=8 sw=8 tw=78:

test/Makefile

@@ -33,6 +33,7 @@ Dlogger_OBJS=	$(Buffer_OBJS)			\
 SSVReader_OBJS=		$(Buffer_OBJS)			\
 			$(LIBVOS_BLD_D)/File.oo		\
 			$(LIBVOS_BLD_D)/Record.oo	\
+			$(LIBVOS_BLD_D)/Rowset.oo	\
 			$(LIBVOS_BLD_D)/SSVReader.oo
 
 
@@ -46,6 +47,9 @@ DNSQuery_OBJS=		$(SSVReader_OBJS)		\
 host_to_dnsquery_OBJS=	$(SSVReader_OBJS)	\
 			$(DNSQuery_OBJS)
 
+Rowset_OBJS=	$(List_OBJS)			\
+		$(LIBVOS_BLD_D)/Rowset.oo
+
 Resolver_OBJS=	\
 		$(List_OBJS)			\
 		$(DNSQuery_OBJS)		\
@@ -61,7 +65,8 @@ TARGET=	$(BLD_D)/Object.test		\
 	$(BLD_D)/SSVReader.test		\
 	$(BLD_D)/SockAddr.test		\
 	$(BLD_D)/host_to_dnsquery.test	\
-	$(BLD_D)/Resolver.test
+	$(BLD_D)/Resolver.test		\
+	$(BLD_D)/Rowset.test
 
 .PHONY: all clean
 

test/Rowset.test.cc

@@ -0,0 +1,98 @@
+//
+// Copyright 2009-2016 M. Shulhan (ms@kilabit.info). All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+#include "test.hh"
+#include "../Rowset.hh"
+
+#define	EXP_ROW_0
+
+#define	EXP_0	SB ( \
+		SB( \
+			V_STR(STR_TEST_0) SEP_ITEM \
+			V_STR(STR_TEST_1) SEP_ITEM \
+			V_STR(STR_TEST_2) \
+		) \
+	)
+
+#define	EXP_1	SB ( \
+		SB( \
+			V_STR(STR_TEST_0) SEP_ITEM \
+			V_STR(STR_TEST_1) SEP_ITEM \
+			V_STR(STR_TEST_2) \
+		) SEP_LINE \
+		SB( \
+			V_STR(STR_TEST_2) SEP_ITEM \
+			V_STR(STR_TEST_1) SEP_ITEM \
+			V_STR(STR_TEST_0) \
+		) \
+	)
+
+using vos::Buffer;
+using vos::List;
+using vos::Rowset;
+
+Rowset rowset;
+
+List* create_row_0()
+{
+	Buffer* b = NULL;
+	List* row = new List();
+
+	b = new Buffer();
+	b->copy_raw(STR_TEST_0);
+	row->push_tail(b);
+
+	b = new Buffer();
+	b->copy_raw(STR_TEST_1);
+	row->push_tail(b);
+
+	b = new Buffer();
+	b->copy_raw(STR_TEST_2);
+	row->push_tail(b);
+
+	return row;
+}
+
+List* create_row_1()
+{
+	Buffer* b = NULL;
+	List* row = new List();
+
+	b = new Buffer();
+	b->copy_raw(STR_TEST_2);
+	row->push_tail(b);
+
+	b = new Buffer();
+	b->copy_raw(STR_TEST_1);
+	row->push_tail(b);
+
+	b = new Buffer();
+	b->copy_raw(STR_TEST_0);
+	row->push_tail(b);
+
+	return row;
+}
+
+int main()
+{
+	List* row;
+
+	row = create_row_0();
+	rowset.push_tail(row);
+
+	printf("exp: '%s'\n", EXP_0);
+	printf("got: '%s'\n", rowset.chars());
+
+	assert(strcmp(EXP_0, rowset.chars()) == 0);
+
+	row = create_row_1();
+	rowset.push_tail(row);
+
+	printf("exp: '%s'\n", EXP_1);
+	printf("got: '%s'\n", rowset.chars());
+
+	assert(strcmp(EXP_1, rowset.chars()) == 0);
+}