C++ serializeLongString函数代码示例

std::string LuaEntitySAO::getStaticData()
{
/*
	verbosestream<<FUNCTION_NAME<<std::endl;
*/
	std::ostringstream os(std::ios::binary);
	// version
	writeU8(os, 1);
	// name
	os<<serializeString(m_init_name);
	// state
	if(m_registered){
		std::string state = m_env->getScriptIface()->
			luaentity_GetStaticdata(m_id);
		os<<serializeLongString(state);
	} else {
		os<<serializeLongString(m_init_state);
	}
	// hp
	writeS16(os, m_hp);
	// velocity
	writeV3F1000(os, m_velocity);
	// yaw
	writeF1000(os, m_yaw);
	return os.str();
}

void TestSerialization::testSerializeLongString()
{
	// Test blank string
	UASSERT(serializeLongString("") == mkstr("\0\0\0\0"));

	// Test basic string
	UASSERT(serializeLongString("Hello world!") == mkstr("\0\0\0\14Hello world!"));

	// Test character range
	UASSERT(serializeLongString(teststring2) == mkstr("\0\0\1\0") + teststring2);
}

std::string PlayerSAO::getClientInitializationData()
{
	std::ostringstream os(std::ios::binary);
	writeU8(os, 0); // version
	os<<serializeString(m_player->getName()); // name
	writeU8(os, 1); // is_player
	writeV3F1000(os, m_player->getPosition() + v3f(0,BS*1,0));
	writeF1000(os, m_player->getYaw());
	writeS16(os, getHP());
	writeU8(os, 2); // number of messages stuffed in here
	os<<serializeLongString(getPropertyPacket()); // message 1
	os<<serializeLongString(gob_cmd_update_armor_groups(m_armor_groups)); // 2
	return os.str();
}

void TestSerialization::testDeSerializeLongString()
{
	// Test deserialize
	{
		std::istringstream is(serializeLongString(teststring2), std::ios::binary);
		UASSERT(deSerializeLongString(is) == teststring2);
		UASSERT(!is.eof());
		is.get();
		UASSERT(is.eof());
	}

	// Test deserialize an incomplete length specifier
	{
		std::istringstream is(mkstr("\x53"), std::ios::binary);
		EXCEPTION_CHECK(SerializationError, deSerializeLongString(is));
	}

	// Test deserialize a string with incomplete data
	{
		std::istringstream is(mkstr("\x00\x00\x00\x05 abc"), std::ios::binary);
		EXCEPTION_CHECK(SerializationError, deSerializeLongString(is));
	}

	// Test deserialize a string with a length too large
	{
		std::istringstream is(mkstr("\xFF\xFF\xFF\xFF blah"), std::ios::binary);
		EXCEPTION_CHECK(SerializationError, deSerializeLongString(is));
	}
}

void CNodeDefManager::serialize(std::ostream &os, u16 protocol_version) const
{
	writeU8(os, 1); // version
	u16 count = 0;
	std::ostringstream os2(std::ios::binary);
	for (u32 i = 0; i < m_content_features.size(); i++) {
		if (i == CONTENT_IGNORE || i == CONTENT_AIR
				|| i == CONTENT_UNKNOWN)
			continue;
		const ContentFeatures *f = &m_content_features[i];
		if (f->name.empty())
			continue;
		writeU16(os2, i);
		// Wrap it in a string to allow different lengths without
		// strict version incompatibilities
		std::ostringstream wrapper_os(std::ios::binary);
		f->serialize(wrapper_os, protocol_version);
		os2<<serializeString(wrapper_os.str());

		// must not overflow
		u16 next = count + 1;
		FATAL_ERROR_IF(next < count, "Overflow");
		count++;
	}
	writeU16(os, count);
	os << serializeLongString(os2.str());
}

	void serialize(std::ostream &os, u16 protocol_version)
	{
		writeU8(os, 1); // version
		u16 count = 0;
		std::ostringstream os2(std::ios::binary);
		for(u32 i=0; i<m_content_features.size(); i++)
		{
			if(i == CONTENT_IGNORE || i == CONTENT_AIR
					|| i == CONTENT_UNKNOWN)
				continue;
			ContentFeatures *f = &m_content_features[i];
			if(f->name == "")
				continue;
			writeU16(os2, i);
			// Wrap it in a string to allow different lengths without
			// strict version incompatibilities
			std::ostringstream wrapper_os(std::ios::binary);
			f->serialize(wrapper_os, protocol_version);
			os2<<serializeString(wrapper_os.str());

			assert(count + 1 > count); // must not overflow
			count++;
		}
		writeU16(os, count);
		os<<serializeLongString(os2.str());
	}

std::string LuaEntitySAO::getStaticData()
{
	infostream<<__FUNCTION_NAME<<std::endl;
	std::ostringstream os(std::ios::binary);
	// version
	writeU8(os, 0);
	// name
	os<<serializeString(m_init_name);
	// state
	if(m_registered){
		lua_State *L = m_env->getLua();
		std::string state = scriptapi_luaentity_get_staticdata(L, m_id);
		os<<serializeLongString(state);
	} else {
		os<<serializeLongString(m_init_state);
	}
	return os.str();
}

	void serializeBody(std::ostream &os)
	{
		m_inventory->serialize(os);
		os<<serializeLongString(m_text);
		os<<serializeString(m_owner);

		os<<serializeString(m_infotext);
		os<<serializeString(m_inventorydrawspec);
		writeU8(os, m_allow_text_input);
		writeU8(os, m_removal_disabled);
		writeU8(os, m_enforce_owner);

		int num_vars = m_stringvars.size();
		writeU32(os, num_vars);
		for(std::map<std::string, std::string>::iterator
				i = m_stringvars.begin(); i != m_stringvars.end(); i++){
			os<<serializeString(i->first);
			os<<serializeLongString(i->second);
		}
	}

void NodeMetadata::serialize(std::ostream &os) const
{
	int num_vars = m_stringvars.size();
	writeU32(os, num_vars);
	for(std::map<std::string, std::string>::const_iterator
			i = m_stringvars.begin(); i != m_stringvars.end(); i++){
		os<<serializeString(i->first);
		os<<serializeLongString(i->second);
	}

	m_inventory->serialize(os);
}

std::string gob_cmd_update_infant(u16 id, u8 type,
		const std::string &client_initialization_data)
{
	std::ostringstream os(std::ios::binary);
	// command
	writeU8(os, GENERIC_CMD_SPAWN_INFANT);
	// parameters
	writeU16(os, id);
	writeU8(os, type);
	os<<serializeLongString(client_initialization_data);
	return os.str();
}

std::string PlayerSAO::getClientInitializationData(u16 protocol_version)
{
	std::ostringstream os(std::ios::binary);

	if(protocol_version >= 15)
	{
		writeU8(os, 1); // version
		os<<serializeString(m_player->getName()); // name
		writeU8(os, 1); // is_player
		writeS16(os, getId()); //id
		writeV3F1000(os, m_player->getPosition() + v3f(0,BS*1,0));
		writeF1000(os, m_player->getYaw());
		writeS16(os, getHP());

		writeU8(os, 6 + m_bone_position.size()); // number of messages stuffed in here
		os<<serializeLongString(getPropertyPacket()); // message 1
		os<<serializeLongString(gob_cmd_update_armor_groups(m_armor_groups)); // 2
		os<<serializeLongString(gob_cmd_update_animation(
			m_animation_range, m_animation_speed, m_animation_blend, m_animation_loop)); // 3
		for(std::map<std::string, core::vector2d<v3f> >::const_iterator ii = m_bone_position.begin(); ii != m_bone_position.end(); ++ii){
			os<<serializeLongString(gob_cmd_update_bone_position((*ii).first, (*ii).second.X, (*ii).second.Y)); // m_bone_position.size
		}
		os<<serializeLongString(gob_cmd_update_attachment(m_attachment_parent_id, m_attachment_bone, m_attachment_position, m_attachment_rotation)); // 4
		os<<serializeLongString(gob_cmd_update_physics_override(m_physics_override_speed,
				m_physics_override_jump, m_physics_override_gravity, m_physics_override_sneak,
				m_physics_override_sneak_glitch)); // 5
		os << serializeLongString(gob_cmd_update_nametag_attributes(m_nametag_color)); // 6
	}
	else
	{
		writeU8(os, 0); // version
		os<<serializeString(m_player->getName()); // name
		writeU8(os, 1); // is_player
		writeV3F1000(os, m_player->getPosition() + v3f(0,BS*1,0));
		writeF1000(os, m_player->getYaw());
		writeS16(os, getHP());
		writeU8(os, 2); // number of messages stuffed in here
		os<<serializeLongString(getPropertyPacket()); // message 1
		os<<serializeLongString(gob_cmd_update_armor_groups(m_armor_groups)); // 2
	}

	// return result
	return os.str();
}

void NodeMetadata::serialize(std::ostream &os) const
{
	int num_vars = m_stringvars.size();
	writeU32(os, num_vars);
	for (StringMap::const_iterator
			it = m_stringvars.begin();
			it != m_stringvars.end(); ++it) {
		os << serializeString(it->first);
		os << serializeLongString(it->second);
	}

	m_inventory->serialize(os);
}

void TestSerialization::testStreamWrite()
{
	std::ostringstream os(std::ios_base::binary);
	std::string data;

	writeU8(os, 0x11);
	writeU16(os, 0x2233);
	writeU32(os, 0x44556677);
	writeU64(os, 0x8899AABBCCDDEEFF);

	writeS8(os, -128);
	writeS16(os, 30000);
	writeS32(os, -6);
	writeS64(os, -43);

	writeF1000(os, 53.53467f);
	writeF1000(os, -300000.32f);
	writeF1000(os, F1000_MIN);
	writeF1000(os, F1000_MAX);

	os << serializeString("foobar!");

	data = os.str();
	UASSERT(data.size() < sizeof(test_serialized_data));
	UASSERT(!memcmp(&data[0], test_serialized_data, data.size()));

	writeV2S16(os, v2s16(500, 500));
	writeV3S16(os, v3s16(4207, 604, -30));
	writeV2S32(os, v2s32(1920, 1080));
	writeV3S32(os, v3s32(-400, 6400054, 290549855));
	writeV2F1000(os, v2f(500.65661f, 350.34567f));

	os << serializeWideString(L"\x02~woof~\x5455");

	writeV3F1000(os, v3f(500, 10024.2f, -192.54f));
	writeARGB8(os, video::SColor(255, 128, 50, 128));

	os << serializeLongString("some longer string here");

	writeU16(os, 0xF00D);

	data = os.str();
	UASSERT(data.size() == sizeof(test_serialized_data));
	UASSERT(!memcmp(&data[0], test_serialized_data, sizeof(test_serialized_data)));
}

	void serialize(std::ostream &os)
	{
		u16 count = 0;
		std::ostringstream tmp_os(std::ios::binary);
		for(u16 i=0; i<=MAX_CONTENT; i++)
		{
			if(i == CONTENT_IGNORE || i == CONTENT_AIR)
				continue;
			ContentFeatures *f = &m_content_features[i];
			if(f->name == "")
				continue;
			writeU16(tmp_os, i);
			f->serialize(tmp_os);
			count++;
		}
		writeU16(os, count);
		os<<serializeLongString(tmp_os.str());
	}

	void serialize(std::ostream &os)
	{
		writeU8(os, 1); // version
		u16 count = 0;
		std::ostringstream os2(std::ios::binary);
		for(u16 i=0; i<=MAX_CONTENT; i++)
		{
			if(i == CONTENT_IGNORE || i == CONTENT_AIR)
				continue;
			ContentFeatures *f = &m_content_features[i];
			if(f->name == "")
				continue;
			writeU16(os2, i);
			// Wrap it in a string to allow different lengths without
			// strict version incompatibilities
			std::ostringstream wrapper_os(std::ios::binary);
			f->serialize(wrapper_os);
			os2<<serializeString(wrapper_os.str());
			count++;
		}
		writeU16(os, count);
		os<<serializeLongString(os2.str());
	}