Robin Davies
96 lines
3.2 KiB
C++
96 lines
3.2 KiB
C++
/*
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* MIT License
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*
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* Copyright (c) 2022 Robin E. R. Davies
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is furnished to do
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* so, subject to the following conditions:
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*
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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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*
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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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#pragma once
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#include <string>
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#include <exception>
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struct sockaddr_un;
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namespace pipedal {
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class UnixSocketException : public std::exception {
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public:
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UnixSocketException(int errno_);
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UnixSocketException(const std::string what_,int errno_);
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UnixSocketException(const std::string what_);
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const char*what() const noexcept { return what_.c_str(); }
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int get_errno() const { return errno_; }
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private:
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int errno_;
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std::string what_;
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};
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namespace detail {
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class UnixSocketData;
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}
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class UnixSocket {
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public:
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using sockaddr_t = sockaddr_un;
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UnixSocket();
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~UnixSocket();
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bool IsOpen() const;
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/**
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* @brief Prepare a server socket to recive data.
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*
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* permissionGroup controls permissions on the socekt.
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* Proceses that wish to read or write to the socket must belong to permissionGroup.
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* @param socketName Server socket name.
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* @param permissionGroup The group which is allowed to connect to this socket.
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*/
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void Bind(const std::string&socketName,const std::string&permissionGroup);
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/**
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* @brief Prepare a socket to write to a server socket.
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*
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* The optional groupPermission is applied to the client socket to allow
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* server process that are not highly privileged to write replies. The
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* server process must belong the group named by permissionGroup.
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*
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* @param remoteSocketName The name of the server socket.
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* @param permissionGroup` The permission to appy to the client socket.
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*/
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void Connect(const std::string&remoteSocketName, const std::string &groupPermission = "");
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void Close();
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size_t Send(const void*buffer, size_t length);
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size_t Receive(void *buffer, size_t length);
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size_t ReceiveFrom(void*buffer, size_t length,std::string*fromAddress);
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size_t SendTo(const void*buffer, size_t length,const std::string&toAddress);
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private:
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detail::UnixSocketData *data;
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};
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}; |