kopia lustrzana https://github.com/jameshball/osci-render
101 wiersze
3.1 KiB
C++
101 wiersze
3.1 KiB
C++
/*
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* IXSocket.h
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* Author: Benjamin Sergeant
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* Copyright (c) 2017-2018 Machine Zone, Inc. All rights reserved.
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*/
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#pragma once
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#include <atomic>
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#include <cstdint>
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#include <functional>
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#include <memory>
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#include <mutex>
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#include <string>
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#ifdef _WIN32
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#include <basetsd.h>
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#ifdef _MSC_VER
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typedef SSIZE_T ssize_t;
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#endif
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#endif
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#include "IXCancellationRequest.h"
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#include "IXProgressCallback.h"
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#include "IXSelectInterrupt.h"
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namespace ix
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{
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enum class PollResultType
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{
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ReadyForRead = 0,
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ReadyForWrite = 1,
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Timeout = 2,
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Error = 3,
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SendRequest = 4,
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CloseRequest = 5
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};
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class Socket
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{
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public:
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Socket(int fd = -1);
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virtual ~Socket();
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bool init(std::string& errorMsg);
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// Functions to check whether there is activity on the socket
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PollResultType poll(int timeoutMs = kDefaultPollTimeout);
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bool wakeUpFromPoll(uint64_t wakeUpCode);
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bool isWakeUpFromPollSupported();
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PollResultType isReadyToWrite(int timeoutMs);
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PollResultType isReadyToRead(int timeoutMs);
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// Virtual methods
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virtual bool accept(std::string& errMsg);
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virtual bool connect(const std::string& host,
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int port,
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std::string& errMsg,
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const CancellationRequest& isCancellationRequested);
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virtual void close();
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virtual ssize_t send(char* buffer, size_t length);
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ssize_t send(const std::string& buffer);
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virtual ssize_t recv(void* buffer, size_t length);
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// Blocking and cancellable versions, working with socket that can be set
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// to non blocking mode. Used during HTTP upgrade.
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bool readByte(void* buffer, const CancellationRequest& isCancellationRequested);
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bool writeBytes(const std::string& str, const CancellationRequest& isCancellationRequested);
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std::pair<bool, std::string> readLine(const CancellationRequest& isCancellationRequested);
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std::pair<bool, std::string> readBytes(size_t length,
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const OnProgressCallback& onProgressCallback,
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const OnChunkCallback& onChunkCallback,
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const CancellationRequest& isCancellationRequested);
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static int getErrno();
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static bool isWaitNeeded();
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static void closeSocket(int fd);
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static PollResultType poll(bool readyToRead,
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int timeoutMs,
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int sockfd,
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const SelectInterruptPtr& selectInterrupt);
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protected:
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std::atomic<int> _sockfd;
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std::mutex _socketMutex;
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static bool readSelectInterruptRequest(const SelectInterruptPtr& selectInterrupt,
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PollResultType* pollResult);
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private:
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static const int kDefaultPollTimeout;
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static const int kDefaultPollNoTimeout;
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SelectInterruptPtr _selectInterrupt;
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};
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} // namespace ix
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