blob: 95169c48a5b166ccd2e27d23c0c2ea16d119ad00 [file] [log] [blame]
/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2012 University of California, Los Angeles
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation;
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Zhenkai Zhu <zhenkai@cs.ucla.edu>
* Chaoyi Bian <bcy@pku.edu.cn>
* Alexander Afanasyev <alexander.afanasyev@ucla.edu>
*/
#include "sync-std-name-info.h"
#include "boost/thread/locks.hpp"
// using namespace std;
using namespace boost;
namespace Sync {
NameInfoConstPtr
StdNameInfo::FindOrCreate (const std::string &key)
{
mutex::scoped_lock namesLock (m_namesMutex);
// std::cout << "FindOrCreate: " << m_names.size () << "\n";
NameInfoConstPtr ret;
NameMap::iterator item = m_names.find (key);
if (item != m_names.end ())
{
ret = item->second.lock ();
BOOST_ASSERT (ret != 0);
}
else
{
ret = NameInfoPtr (new StdNameInfo (key));
weak_ptr<const NameInfo> value (ret);
std::pair<NameMap::iterator,bool> inserted =
m_names.insert (make_pair (key, value));
BOOST_ASSERT (inserted.second); // previous call has to insert value
item = inserted.first;
}
return ret;
}
StdNameInfo::StdNameInfo (const std::string &name)
: m_name (name)
{
m_id = m_ids ++; // set ID for a newly inserted element
m_digest << name;
m_digest.finalize ();
// std::cout << "StdNameInfo: " << name << " = " << m_id << "\n";
}
StdNameInfo::~StdNameInfo ()
{
mutex::scoped_lock namesLock (m_namesMutex);
// cout << "Destructor for " << m_name << "\n";
m_names.erase (toString ());
}
std::string
StdNameInfo::toString () const
{
return m_name;
}
bool
StdNameInfo::operator == (const NameInfo &info) const
{
return m_name == dynamic_cast<const StdNameInfo&> (info).m_name;
}
bool
StdNameInfo::operator < (const NameInfo &info) const
{
return m_name < dynamic_cast<const StdNameInfo&> (info).m_name;
}
} // Sync