mirror of
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122 lines
3.5 KiB
C++
122 lines
3.5 KiB
C++
/**
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* @file message.cpp
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* @author Martin Piatka <piatka@cesnet.cz>
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*/
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/*
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* Copyright (c) 2021 CESNET, z. s. p. o.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, is permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of CESNET nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <charconv>
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#include <cassert>
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#include <cstring>
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#include "message.hpp"
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std::string_view Message::getStr() const{
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return std::string_view(data + headerSize, size);
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}
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void Message::async_readMsg(asio::ip::tcp::socket& socket,
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std::function<void(bool)> onComplete)
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{
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using namespace std::placeholders;
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asio::async_read(socket,
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asio::buffer(data, headerSize),
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std::bind(&Message::async_readBody,
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this, std::ref(socket), onComplete, _1, _2));
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}
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void Message::setStr(std::string_view msg){
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assert(!sendingNow);
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size = std::min(bodySize, msg.size());
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memset(data, ' ', headerSize);
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std::to_chars(data, data + headerSize, size);
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memcpy(data + headerSize, msg.data(), size);
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}
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void Message::async_sendMsg(asio::ip::tcp::socket& socket,
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std::function<void(bool)> onComplete)
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{
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using namespace std::placeholders;
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sendingNow = true;
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asio::async_write(socket,
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asio::buffer(data, headerSize + size),
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std::bind(&Message::async_sendComplete,
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this, onComplete, _1, _2));
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}
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void Message::async_readBody(asio::ip::tcp::socket& socket,
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std::function<void(bool)> onComplete,
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const std::error_code& ec, [[maybe_unused]] size_t readLen)
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{
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if(ec){
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onComplete(false);
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return;
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}
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assert(readLen == headerSize);
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size_t expectedSize = 0;
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auto res = std::from_chars(data, data + headerSize, expectedSize);
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if(res.ec != std::errc()){
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onComplete(false);
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return;
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}
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using namespace std::placeholders;
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asio::async_read(socket,
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asio::buffer(data + headerSize, expectedSize),
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std::bind(&Message::async_readBodyComplete,
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this, onComplete, _1, _2));
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}
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void Message::async_readBodyComplete(std::function<void(bool)> onComplete,
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const std::error_code& ec, size_t readLen)
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{
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if(ec){
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onComplete(false);
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return;
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}
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size = readLen;
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onComplete(true);
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}
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void Message::async_sendComplete(std::function<void(bool)> onComplete,
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const std::error_code& ec, [[maybe_unused]] size_t sentLen)
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{
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sendingNow = false;
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onComplete(!ec);
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}
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