C++ (Cpp) buffer_ptr_t::prepend示例

示例#1

文件： lliohttpserver.cpp 项目： Nora28/imprudence

// virtual
LLIOPipe::EStatus LLHTTPResponseHeader::process_impl(
	const LLChannelDescriptors& channels,
	buffer_ptr_t& buffer,
	bool& eos,
	LLSD& context,
	LLPumpIO* pump)
{
	PUMP_DEBUG;
	LLMemType m1(LLMemType::MTYPE_IO_HTTP_SERVER);
	if(eos)
	{
		PUMP_DEBUG;
		//mGotEOS = true;
		std::ostringstream ostr;
		std::string message = context[CONTEXT_RESPONSE]["statusMessage"];
		
		int code = context[CONTEXT_RESPONSE]["statusCode"];
		if (code < 200)
		{
			code = 200;
			message = "OK";
		}
		
		ostr << HTTP_VERSION_STR << " " << code << " " << message << "\r\n";
		S32 content_length = buffer->countAfter(channels.in(), NULL);
		if(0 < content_length)
		{
			ostr << "Content-Length: " << content_length << "\r\n";
		}
		// *NOTE: This guard can go away once the LLSD static map
		// iterator is available. Phoenix. 2008-05-09
		LLSD headers = context[CONTEXT_RESPONSE][CONTEXT_HEADERS];
		if(headers.isDefined())
		{
			LLSD::map_iterator iter = headers.beginMap();
			LLSD::map_iterator end = headers.endMap();
			for(; iter != end; ++iter)
			{
				ostr << (*iter).first << ": " << (*iter).second.asString()
					<< "\r\n";
			}
		}
		ostr << "\r\n";

		LLChangeChannel change(channels.in(), channels.out());
		std::for_each(buffer->beginSegment(), buffer->endSegment(), change);
		std::string header = ostr.str();
		buffer->prepend(channels.out(), (U8*)header.c_str(), header.size());
		PUMP_DEBUG;
		return STATUS_DONE;
	}
	PUMP_DEBUG;
	return STATUS_OK;
}

示例#2

文件： lliohttpserver.cpp 项目： xinyaojiejie/Dale

// virtual
LLIOPipe::EStatus LLHTTPResponseHeader::process_impl(
	const LLChannelDescriptors& channels,
	buffer_ptr_t& buffer,
	bool& eos,
	LLSD& context,
	LLPumpIO* pump)
{
	PUMP_DEBUG;
	LLMemType m1(LLMemType::MTYPE_IO_HTTP_SERVER);
	if(eos)
	{
		PUMP_DEBUG;
		//mGotEOS = true;
		std::ostringstream ostr;
		std::string message = context["response"]["statusMessage"];
		
		int code = context["response"]["statusCode"];
		if (code < 200)
		{
			code = 200;
			message = "OK";
		}
		
		ostr << HTTP_VERSION_STR << " " << code << " " << message << "\r\n";
		
		std::string type = context["response"]["contentType"].asString();
		if (!type.empty())
		{
			ostr << "Content-Type: " << type << "\r\n";
		}
		S32 content_length = buffer->countAfter(channels.in(), NULL);
		if(0 < content_length)
		{
			ostr << "Content-Length: " << content_length << "\r\n";
		}
		ostr << "\r\n";

		LLChangeChannel change(channels.in(), channels.out());
		std::for_each(buffer->beginSegment(), buffer->endSegment(), change);
		std::string header = ostr.str();
		buffer->prepend(channels.out(), (U8*)header.c_str(), header.size());
		PUMP_DEBUG;
		return STATUS_DONE;
	}
	PUMP_DEBUG;
	return STATUS_OK;
}