| /* -*- 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 |