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-rw-r--r--src/output/HttpdInternal.hxx213
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diff --git a/src/output/HttpdInternal.hxx b/src/output/HttpdInternal.hxx
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-/*
- * Copyright (C) 2003-2013 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/** \file
- *
- * Internal declarations for the "httpd" audio output plugin.
- */
-
-#ifndef MPD_OUTPUT_HTTPD_INTERNAL_H
-#define MPD_OUTPUT_HTTPD_INTERNAL_H
-
-#include "OutputInternal.hxx"
-#include "Timer.hxx"
-#include "thread/Mutex.hxx"
-#include "event/ServerSocket.hxx"
-
-#ifdef _LIBCPP_VERSION
-/* can't use incomplete template arguments with libc++ */
-#include "HttpdClient.hxx"
-#endif
-
-#include <forward_list>
-
-struct config_param;
-class Error;
-class EventLoop;
-class ServerSocket;
-class HttpdClient;
-class Page;
-struct Encoder;
-struct Tag;
-
-struct HttpdOutput final : private ServerSocket {
- struct audio_output base;
-
- /**
- * True if the audio output is open and accepts client
- * connections.
- */
- bool open;
-
- /**
- * The configured encoder plugin.
- */
- Encoder *encoder;
-
- /**
- * Number of bytes which were fed into the encoder, without
- * ever receiving new output. This is used to estimate
- * whether MPD should manually flush the encoder, to avoid
- * buffer underruns in the client.
- */
- size_t unflushed_input;
-
- /**
- * The MIME type produced by the #encoder.
- */
- const char *content_type;
-
- /**
- * This mutex protects the listener socket and the client
- * list.
- */
- mutable Mutex mutex;
-
- /**
- * A #Timer object to synchronize this output with the
- * wallclock.
- */
- Timer *timer;
-
- /**
- * The header page, which is sent to every client on connect.
- */
- Page *header;
-
- /**
- * The metadata, which is sent to every client.
- */
- Page *metadata;
-
- /**
- * The configured name.
- */
- char const *name;
- /**
- * The configured genre.
- */
- char const *genre;
- /**
- * The configured website address.
- */
- char const *website;
-
- /**
- * A linked list containing all clients which are currently
- * connected.
- */
- std::forward_list<HttpdClient> clients;
-
- /**
- * A temporary buffer for the httpd_output_read_page()
- * function.
- */
- char buffer[32768];
-
- /**
- * The maximum and current number of clients connected
- * at the same time.
- */
- unsigned clients_max, clients_cnt;
-
- HttpdOutput(EventLoop &_loop);
- ~HttpdOutput();
-
- bool Configure(const config_param &param, Error &error);
-
- bool Bind(Error &error);
- void Unbind();
-
- /**
- * Caller must lock the mutex.
- */
- bool OpenEncoder(AudioFormat &audio_format, Error &error);
-
- /**
- * Caller must lock the mutex.
- */
- bool Open(AudioFormat &audio_format, Error &error);
-
- /**
- * Caller must lock the mutex.
- */
- void Close();
-
- /**
- * Check whether there is at least one client.
- *
- * Caller must lock the mutex.
- */
- gcc_pure
- bool HasClients() const {
- return !clients.empty();
- }
-
- /**
- * Check whether there is at least one client.
- */
- gcc_pure
- bool LockHasClients() const {
- const ScopeLock protect(mutex);
- return HasClients();
- }
-
- void AddClient(int fd);
-
- /**
- * Removes a client from the httpd_output.clients linked list.
- */
- void RemoveClient(HttpdClient &client);
-
- /**
- * Sends the encoder header to the client. This is called
- * right after the response headers have been sent.
- */
- void SendHeader(HttpdClient &client) const;
-
- /**
- * Reads data from the encoder (as much as available) and
- * returns it as a new #page object.
- */
- Page *ReadPage();
-
- /**
- * Broadcasts a page struct to all clients.
- *
- * Mutext must not be locked.
- */
- void BroadcastPage(Page *page);
-
- /**
- * Broadcasts data from the encoder to all clients.
- */
- void BroadcastFromEncoder();
-
- bool EncodeAndPlay(const void *chunk, size_t size, Error &error);
-
- void SendTag(const Tag *tag);
-
-private:
- virtual void OnAccept(int fd, const sockaddr &address,
- size_t address_length, int uid) override;
-};
-
-extern const class Domain httpd_output_domain;
-
-#endif