4be24759f3
Change-Id: I8a6e1468bc26b4a81ae13a567fd7331207ac37fc Reviewed-on: https://gerrit.libreoffice.org/23786 Reviewed-by: Ashod Nakashian <ashnakash@gmail.com> Tested-by: Ashod Nakashian <ashnakash@gmail.com>
88 lines
3 KiB
C++
88 lines
3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#ifndef INCLUDED_IOUTIL_HPP
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#define INCLUDED_IOUTIL_HPP
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#include <functional>
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#include <string>
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#include <memory>
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#include <sys/poll.h>
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#include <Poco/Net/WebSocket.h>
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#include <Poco/Logger.h>
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namespace IoUtil
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{
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/// Synchronously process WebSocket requests and dispatch to handler.
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//. Handler returns false to end.
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void SocketProcessor(std::shared_ptr<Poco::Net::WebSocket> ws,
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Poco::Net::HTTPResponse& response,
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std::function<bool(const std::vector<char>&)> handler,
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std::function<bool()> stopPredicate,
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std::string name = std::string(),
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const size_t pollTimeoutMs = POLL_TIMEOUT_MS);
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/// Call WebSocket::shutdown() ignoring Poco::IOException.
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void shutdownWebSocket(std::shared_ptr<Poco::Net::WebSocket> ws);
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ssize_t writeFIFO(int pipe, const char* buffer, ssize_t size);
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inline
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ssize_t writeFIFO(int pipe, const std::string& message)
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{
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return writeFIFO(pipe, message.c_str(), message.size());
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}
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ssize_t readFIFO(int pipe, char* buffer, ssize_t size);
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ssize_t readMessage(const int pipe, char* buffer, const ssize_t size,
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const size_t timeoutSec = CHILD_TIMEOUT_SECS);
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class PipeReader
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{
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public:
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PipeReader(const std::string& name, const int pipe) :
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_name(name),
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_pipe(pipe)
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{
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}
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const std::string& getName() const { return _name; }
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/// Reads a single line from the pipe.
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/// Returns 0 for timeout, <0 for error, and >0 on success.
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/// On success, line will contain the read message.
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int readLine(std::string& line,
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std::function<bool()> stopPredicate,
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const size_t timeoutMs = POLL_TIMEOUT_MS);
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/// Processes a single line read and invoking stopPredicate
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/// to check for termination condition.
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/// Intended to be called from a polling loop.
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bool processOnce(std::function<bool(std::string& message)> handler,
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std::function<bool()> stopPredicate,
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const size_t pollTimeoutMs = POLL_TIMEOUT_MS);
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/// Designed to be called from a dedicated thread,
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/// blocks and processes pipe messages in a loop.
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void process(std::function<bool(std::string& message)> handler,
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std::function<bool()> stopPredicate,
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const size_t pollTimeoutMs = POLL_TIMEOUT_MS);
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private:
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const std::string _name;
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const int _pipe;
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std::string _data;
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};
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}
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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