Paul Davis
ccd19ed061
This is theoretically dangerous, because a PBD::ID is supposed to be unique, and this new constructor cannot guarantee that. However, the same danger already exists with the std::string-based constructor
112 lines
1.9 KiB
C++
112 lines
1.9 KiB
C++
/*
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Copyright (C) 2000-2007 Paul Davis
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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 2 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, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <ostream>
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#include <stdio.h>
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#include "pbd/id.h"
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#include "pbd/string_convert.h"
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#include <string>
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using namespace std;
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using namespace PBD;
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Glib::Threads::Mutex* ID::counter_lock = 0;
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uint64_t ID::_counter = 0;
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void
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ID::init ()
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{
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if (!counter_lock) {
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counter_lock = new Glib::Threads::Mutex;
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}
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}
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ID::ID ()
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{
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reset ();
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}
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ID::ID (const ID& other)
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{
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_id = other._id;
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}
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ID::ID (string str)
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{
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/* danger, will robinson: could result in non-unique ID */
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string_assign (str);
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}
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ID::ID (uint64_t n)
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{
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/* danger, will robinson: could result in non-unique ID */
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_id = n;
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}
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void
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ID::reset ()
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{
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Glib::Threads::Mutex::Lock lm (*counter_lock);
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_id = ++_counter;
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}
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bool
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ID::string_assign (string str)
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{
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return string_to_uint64 (str, _id);
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}
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std::string
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ID::to_s () const
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{
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return to_string (_id);
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}
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bool
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ID::operator== (const string& str) const
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{
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return to_string (_id) == str;
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}
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ID&
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ID::operator= (string str)
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{
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string_assign (str);
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return *this;
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}
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ID&
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ID::operator= (const ID& other)
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{
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if (&other != this) {
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_id = other._id;
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}
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return *this;
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}
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ostream&
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operator<< (ostream& ostr, const ID& id)
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{
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ostr << id.to_s();
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return ostr;
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}
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