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/*
Copyright (C) 2000-2007 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __pbd_id_h__
#define __pbd_id_h__
#include <stdint.h>
#include <string>
#include <glibmm/threads.h>
#include "pbd/libpbd_visibility.h"
namespace PBD {
/** a unique ID to identify objects numerically */
class LIBPBD_API ID {
public:
ID ();
ID (std::string);
ID (const ID&);
void reset ();
bool operator== (const ID& other) const {
return _id == other._id;
}
bool operator!= (const ID& other) const {
return _id != other._id;
}
bool operator== (const std::string&) const;
ID& operator= (std::string);
ID& operator= (const ID&);
bool operator< (const ID& other) const {
return _id < other._id;
}
void print (char* buf, uint32_t bufsize) const;
std::string to_s() const;
static uint64_t counter() { return _counter; }
static void init_counter (uint64_t val) { _counter = val; }
static void init ();
private:
uint64_t _id;
int string_assign (std::string);
static Glib::Threads::Mutex* counter_lock;
static uint64_t _counter;
};
}
LIBPBD_API std::ostream& operator<< (std::ostream& ostr, const PBD::ID&);
#endif /* __pbd_id_h__ */
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