73ff928b6f
* src/evtgba/Makefile.am, src/evtgba/evtgba.cc, src/evtgba/evtgba.hh, src/evtgba/evtgbaiter.hh, src/evtgba/explicit.cc, src/evtgba/explicit.hh, src/evtgba/product.cc, src/evtgba/product.hh, src/evtgba/symbol.cc, src/evtgba/symbol.hh, src/evtgbaalgos/Makefile.am, src/evtgbaalgos/dotty.cc, src/evtgbaalgos/dotty.hh, src/evtgbaalgos/reachiter.cc, src/evtgbaalgos/reachiter.hh, src/evtgbaalgos/save.cc, src/evtgbaalgos/save.hh, src/evtgbaparse/Makefile.am, src/evtgbaparse/evtgbaparse.yy, src/evtgbaparse/evtgbascan.ll, src/evtgbaparse/fmterror.cc, src/evtgbaparse/parsedecl.hh, src/evtgbaparse/public.hh, src/evtgbatest/Makefile.am, src/evtgbatest/defs.in, src/evtgbatest/explicit.cc, src/evtgbatest/explicit.test, src/evtgbatest/product.cc, src/evtgbatest/product.test, src/evtgbatest/readsave.cc, src/evtgbatest/readsave.test: New files. * configure.ac: Create the Makefiles in these new subdirectories. * src/Makefile.am: Recurse them.
109 lines
2.3 KiB
C++
109 lines
2.3 KiB
C++
// Copyright (C) 2004 Laboratoire d'Informatique de Paris 6 (LIP6),
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// département Systèmes Répartis Coopératifs (SRC), Université Pierre
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// et Marie Curie.
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//
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// This file is part of Spot, a model checking library.
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//
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// Spot is free software; you can redistribute it and/or modify it
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// 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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//
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// Spot is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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// License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Spot; see the file COPYING. If not, write to the Free
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// Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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// 02111-1307, USA.
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#include <cassert>
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#include "symbol.hh"
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#include <ostream>
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namespace spot
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{
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symbol::map symbol::instances_;
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symbol::symbol(const std::string* name)
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: name_(name), refs_(1)
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{
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}
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symbol::~symbol()
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{
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map::iterator i = instances_.find(name());
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assert (i != instances_.end());
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instances_.erase(i);
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}
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const symbol*
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symbol::instance(const std::string& name)
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{
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map::iterator i = instances_.find(name);
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if (i != instances_.end())
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{
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const symbol* s = i->second;
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s->ref();
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return s;
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}
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// Convoluted insertion because we want the NAME member of the
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// value to point to the key.
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i = instances_.insert(map::value_type(name, 0)).first;
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i->second = new symbol(&i->first);
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return i->second;
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}
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const std::string&
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symbol::name() const
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{
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return *name_;
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}
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void
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symbol::ref() const
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{
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++refs_;
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}
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void
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symbol::unref() const
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{
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assert(refs_ > 0);
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--refs_;
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if (!refs_)
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delete this;
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}
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int
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symbol::ref_count_() const
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{
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return refs_;
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}
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unsigned
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symbol::instance_count()
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{
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return instances_.size();
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}
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std::ostream&
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symbol::dump_instances(std::ostream& os)
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{
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for (map::iterator i = instances_.begin(); i != instances_.end(); ++i)
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{
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os << i->second << " = " << i->second->ref_count_()
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<< " * symbol(" << i->second->name() << ")" << std::endl;
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}
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return os;
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}
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}
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