UPnP database plugin

[mk: renamed source files, applied coding style, reduced bloat, using
MPD's threading library, using MPD's error reporting and logging
library and refactoring, fixed lots of bugs]

1 files changed, 93 insertions, 0 deletions

diff --git a/src/db/upnp/upnpplib.hxx b/src/db/upnp/upnpplib.hxx
new file mode 100644
index 000000000..fa3454072
--- /dev/null
+++ b/src/db/upnp/upnpplib.hxx
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2003-2014 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.
+ */
+
+#ifndef _LIBUPNP_H_X_INCLUDED_
+#define _LIBUPNP_H_X_INCLUDED_
+
+#include "thread/Mutex.hxx"
+#include "util/Error.hxx"
+
+#include <string>
+#include <map>
+
+#include <upnp/upnp.h>
+#include <upnp/upnptools.h>
+
+/** Our link to libupnp. Initialize and keep the handle around */
+class LibUPnP {
+	// A Handler object records the data from registerHandler.
+	class Handler {
+	public:
+		Handler(Upnp_FunPtr h, void *c)
+			: handler(h), cookie(c) {}
+		Upnp_FunPtr handler;
+		void *cookie;
+	};
+
+	Error init_error;
+	UpnpClient_Handle m_clh;
+	Mutex m_mutex;
+	std::map<Upnp_EventType, Handler> m_handlers;
+
+	LibUPnP();
+
+	LibUPnP(const LibUPnP &) = delete;
+	LibUPnP &operator=(const LibUPnP &) = delete;
+
+	static int o_callback(Upnp_EventType, void *, void *);
+
+public:
+	~LibUPnP();
+
+	/** Retrieve the singleton LibUPnP object */
+	static LibUPnP *getLibUPnP(Error &error);
+
+	/** Set log file name and activate logging.
+	 *
+	 * @param fn file name to use. Use empty string to turn logging off
+	 */
+	bool setLogFileName(const std::string& fn);
+
+	/** Set max library buffer size for reading content from servers.
+	 * The default is 200k and should be ok */
+	void setMaxContentLength(int bytes);
+
+	/** Check state after initialization */
+	bool ok() const
+	{
+		return !init_error.IsDefined();
+	}
+
+	/** Retrieve init error if state not ok */
+	const Error &GetInitError() const {
+		return init_error;
+	}
+
+	void registerHandler(Upnp_EventType et, Upnp_FunPtr handler, void *cookie);
+
+	UpnpClient_Handle getclh()
+	{
+		return m_clh;
+	}
+
+	/** Translate integer error code (UPNP_E_XXX) to string */
+	static std::string errAsString(const std::string& who, int code);
+};
+
+#endif /* _LIBUPNP.H_X_INCLUDED_ */