mirror of
https://github.com/badaix/snapcast.git
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83 lines
2.6 KiB
C++
83 lines
2.6 KiB
C++
/***
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This file is part of snapcast
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Copyright (C) 2014-2025 Johannes Pohl
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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, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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// prototype/interface header file
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#include "pipe_stream.hpp"
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// local headers
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#include "common/aixlog.hpp"
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#include "common/snap_exception.hpp"
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#include "common/str_compat.hpp"
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// standard headers
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#include <cerrno>
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#include <memory>
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#include <system_error>
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using namespace std;
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namespace streamreader
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{
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static constexpr auto LOG_TAG = "PipeStream";
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PipeStream::PipeStream(PcmStream::Listener* pcmListener, boost::asio::io_context& ioc, const ServerSettings& server_settings, const StreamUri& uri)
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: AsioStream<stream_descriptor>(pcmListener, ioc, server_settings, uri)
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{
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umask(0);
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string mode = uri_.getQuery("mode", "create");
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LOG(INFO, LOG_TAG) << "PipeStream mode: " << mode << "\n";
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if ((mode != "read") && (mode != "create"))
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throw SnapException(R"(create mode for fifo must be "read" or "create")");
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if (mode == "create")
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{
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if ((mkfifo(uri_.path.c_str(), 0666) != 0) && (errno != EEXIST))
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throw SnapException("failed to make fifo \"" + uri_.path + "\": " + cpt::to_string(errno));
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}
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}
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void PipeStream::connect()
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{
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int fd = open(uri_.path.c_str(), O_RDONLY | O_NONBLOCK);
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if (fd < 0)
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{
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std::string error = "failed to open fifo \"" + uri_.path + "\": " + cpt::to_string(errno);
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if (errno == static_cast<int>(std::errc::no_such_file_or_directory))
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{
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LOG(ERROR, LOG_TAG) << error << "\n";
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wait(read_timer_, 200ms, [this, self = shared_from_this()] { connect(); });
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return;
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}
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throw SnapException(error);
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}
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int pipe_size = -1;
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#if !defined(MACOS) && !defined(FREEBSD)
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pipe_size = fcntl(fd, F_GETPIPE_SZ);
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#endif
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LOG(TRACE, LOG_TAG) << "Stream: " << name_ << ", connect to pipe: " << uri_.path << ", fd: " << fd << ", pipe size: " << pipe_size << "\n";
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stream_ = std::make_unique<boost::asio::posix::stream_descriptor>(strand_, fd);
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on_connect();
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}
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} // namespace streamreader
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