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/*
* Copyright (C) 2003-2015 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 MPD_ICU_CONVERTER_HXX
#define MPD_ICU_CONVERTER_HXX
#include "check.h"
#include "Compiler.h"
#ifdef HAVE_ICU
#include "thread/Mutex.hxx"
#define HAVE_ICU_CONVERTER
#elif defined(HAVE_GLIB)
#include <glib.h>
#define HAVE_ICU_CONVERTER
#endif
#ifdef HAVE_ICU_CONVERTER
class Error;
#ifdef HAVE_ICU
struct UConverter;
#endif
template<typename T> class AllocatedString;
/**
* This class can convert strings with a certain character set to and
* from UTF-8.
*/
class IcuConverter {
#ifdef HAVE_ICU
/**
* ICU's UConverter class is not thread-safe. This mutex
* serializes simultaneous calls.
*/
mutable Mutex mutex;
UConverter *const converter;
IcuConverter(UConverter *_converter):converter(_converter) {}
#elif defined(HAVE_GLIB)
const GIConv to_utf8, from_utf8;
IcuConverter(GIConv _to, GIConv _from)
:to_utf8(_to), from_utf8(_from) {}
#endif
public:
#ifdef HAVE_ICU
~IcuConverter();
#elif defined(HAVE_GLIB)
~IcuConverter() {
g_iconv_close(to_utf8);
g_iconv_close(from_utf8);
}
#endif
static IcuConverter *Create(const char *charset, Error &error);
/**
* Convert the string to UTF-8.
*
* Returns AllocatedString::Null() on error.
*/
gcc_pure gcc_nonnull_all
AllocatedString<char> ToUTF8(const char *s) const;
/**
* Convert the string from UTF-8.
*
* Returns AllocatedString::Null() on error.
*/
gcc_pure gcc_nonnull_all
AllocatedString<char> FromUTF8(const char *s) const;
};
#endif
#endif
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