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96 lines
2.9 KiB
96 lines
2.9 KiB
/*
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* This file is part of the Monero P2Pool <https://github.com/SChernykh/p2pool>
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* Copyright (c) 2021-2022 SChernykh <https://github.com/SChernykh>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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namespace p2pool {
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class JSONRPCRequest
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{
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public:
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template<typename T>
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static FORCEINLINE void call(const char* address, int port, const char* req, T&& cb)
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{
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// It will be deleted in one of the tcp callbacks eventually
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JSONRPCRequest* r = new JSONRPCRequest(address, port, req, new Callback<T>(std::move(cb)), nullptr, nullptr);
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if (!r->m_valid) {
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delete r;
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}
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}
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template<typename T, typename U>
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static FORCEINLINE void call(const char* address, int port, const char* req, T&& cb, U&& close_cb, uv_loop_t* loop = nullptr)
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{
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// It will be deleted in one of the tcp callbacks eventually
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CallbackBase* close_callback = new Callback<U>(std::move(close_cb));
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JSONRPCRequest* r = new JSONRPCRequest(address, port, req, new Callback<T>(std::move(cb)), close_callback, loop);
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if (!r->m_valid) {
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constexpr char err[] = "internal error";
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(*close_callback)(err, sizeof(err) - 1);
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delete r;
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}
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}
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private:
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struct CallbackBase
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{
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virtual ~CallbackBase() {}
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virtual void operator()(const char* data, size_t size) = 0;
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};
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template<typename T>
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struct Callback : public CallbackBase
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{
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explicit FORCEINLINE Callback(T&& cb) : m_cb(std::move(cb)) {}
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void operator()(const char* data, size_t size) override { m_cb(data, size); }
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private:
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Callback& operator=(Callback&&) = delete;
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T m_cb;
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};
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JSONRPCRequest(const char* address, int port, const char* req, CallbackBase* cb, CallbackBase* close_cb, uv_loop_t* loop);
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~JSONRPCRequest();
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static void on_connect(uv_connect_t* req, int status);
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static void on_write(uv_write_t* handle, int status);
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static void on_alloc(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf);
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static void on_read(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf);
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void on_read(const char* data, size_t size);
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// cppcheck-suppress functionConst
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void close();
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static void on_close(uv_handle_t* handle);
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uv_tcp_t m_socket;
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uv_connect_t m_connect;
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uv_write_t m_write;
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CallbackBase* m_callback;
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CallbackBase* m_closeCallback;
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uint32_t m_contentLength;
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bool m_contentLengthHeader;
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std::vector<char> m_request;
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std::string m_response;
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char m_readBuf[65536];
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bool m_readBufInUse;
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bool m_valid;
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std::string m_error;
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};
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} // namespace p2pool
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