162 lines
4.2 KiB
C++
162 lines
4.2 KiB
C++
/*
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osc/server.cpp
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Copyright (c) 2023 Kevin Matz (kevin.matz@gmail.com)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#include "receiver.h"
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#include <sstream>
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#include <thread>
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namespace OSC {
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Receiver::Receiver()
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: address_space_(new Method())
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{
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}
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Receiver::~Receiver()
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{
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delete address_space_;
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}
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/**
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* @brief Receiver::dispatch
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* @param msg
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*/
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void Receiver::dispatch(const std::shared_ptr<Message> msg) const
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{
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switch (msg->address_pattern.at(0)) {
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case '/':
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{
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std::list<std::string> patterns;
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std::istringstream strm(msg->address_pattern);
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strm.seekg(1); // skip leading '/'
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for (std::string name; std::getline(strm, name, '/');)
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patterns.emplace_back(std::string(name));
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address_space_->dispatch(patterns, msg);
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}
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break;
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case '#':
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scheduleBundle(std::static_pointer_cast<Bundle>(msg));
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break;
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default:
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break;
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}
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}
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/**
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* @brief Receiver::scheduleBundle
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* @param msg
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*/
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void Receiver::scheduleBundle(const std::shared_ptr<Bundle> msg) const
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{
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auto invoke = [&] {
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for (const auto &element: msg->elements)
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dispatch(element);
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};
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/**
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* > \cite Spec10 The OSC Bundle’s OSC Time Tag determines when the OSC Bundle’s OSC Messages’
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* > corresponding OSC Methods should be invoked.
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*/
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auto time = msg->time_tag.time();
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if (time <= std::chrono::system_clock::now())
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/**
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* > \cite Spec10 If the time represented by the OSC Time Tag is before or equal to the
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* > current time, the OSC Server should invoke the methods immediately.
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*
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* \warning The 64-bit \cite NTPv4 NTP timestamps rollover in 2036. After which all OSC
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* Bundles will appear to be in the past and will always be invoked immediately.
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*/
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invoke();
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else
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{
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/**
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* > \cite Spec10 Otherwise the OSC Time Tag represents a time in the future, and the OSC
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* > server must store the OSC Bundle until the specified time and then invoke the
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* > appropriate OSC Methods.
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*/
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std::thread thread([&] {
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std::this_thread::sleep_until(time);
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invoke();
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});
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thread.detach();
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/// \test validate future OSC Bundle scheduling.
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}
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}
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/**
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* @brief Receiver::rxPacket
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* @param buffer
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*/
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void Receiver::rxPacket(std::shared_ptr<bufferstream> buffer) const
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{
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while (buffer->good()) {
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auto msg = std::make_shared<Message>();
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msg->iStream(buffer);
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if (!buffer->fail())
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dispatch(msg);
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}
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}
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/**
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* @brief Receiver::rxPacketTCP
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* @param buffer
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*
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* This method is presented in \cite Spec10 Spec 1.0, but has been delared as legacy
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* in favor SLIP framming.
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*
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* \note It may be necessary to later move the length check into the TCP receiver.
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*/
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void Receiver::rxPacketTCP(std::shared_ptr<bufferstream> buffer) const
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{
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while (buffer->good()) {
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uint32_t size;
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auto msg = std::make_shared<Message>();
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*buffer >> size;
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msg->iStream(buffer);
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if (size != msg->streamSize())
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buffer->setstate(std::ios::failbit);
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if (!buffer->fail())
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dispatch(msg);
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}
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}
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/**
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* @brief Receiver::rxPacketSLIP
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* @param buffer
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*/
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void Receiver::rxPacketSLIP(std::shared_ptr<bufferstream> buffer) const
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{
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(void)buffer;
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/// \todo Receive an SLIP framed message.
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}
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} // namespace OSC
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