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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set et sw=2 ts=2: */
/***************************************************************************
 *            session.cc
 *
 *  Tue Dec 15 13:36:49 CET 2009
 *  Copyright 2009 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  This file is part of Pracro.
 *
 *  Pracro 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.
 *
 *  Pracro 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 Pracro; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include "session.h"

#include <stdlib.h>

#include "journalwriter.h"
#include "configuration.h"
#include "connectionpool.h"

Session::Session(std::string sessionid)
{
  _id = sessionid;
  _journal = NULL;
}

std::string Session::id()
{
  return _id;
}

void Session::lock()
{
  mutex.lock();
}

void Session::unlock()
{
  mutex.unlock();
}

void Session::commit()
{
  if(_journal != NULL) {
    _journal->commit();
    delete _journal;
    _journal = NULL;
  }
}

JournalWriter *Session::journal()
{
  if(_journal == NULL) {
    _journal =
      new JournalWriter(Conf::journal_commit_addr, Conf::journal_commit_port);
  }
  return _journal;
}

Sessions::Sessions()
{
}

Session *Sessions::newSession()
{
  char sessionid[32];
  do {
    snprintf(sessionid, sizeof(sessionid)-1, "%d", rand());
  } while(sessions.find(sessionid) != sessions.end());

  Session *session = new Session(sessionid);
  sessions[session->id()] = session;
  return session;
}

Session *Sessions::session(std::string sessionid)
{
  if(sessions.find(sessionid) == sessions.end()) return NULL;
  return sessions[sessionid];
}

Session *Sessions::takeSession(std::string sessionid)
{
  Session *s = session(sessionid);
  if(s) {
    sessions.erase(sessionid);
  }
  return s;
}

void Sessions::deleteSession(std::string sessionid)
{
  Session *s = takeSession(sessionid);
  if(s) delete s;
}

size_t Sessions::size()
{
  return sessions.size();
}

#ifdef TEST_SESSION
//deps: configuration.cc journalwriter.cc journal_commit.cc mutex.cc debug.cc
//cflags: -I.. $(PTHREAD_CFLAGS)
//libs: $(PTHREAD_LIBS)
#include <test.h>

TEST_BEGIN;
Sessions sessions;

srand(0);
Session *s1 = sessions.newSession();
srand(0);
Session *s2 = sessions.newSession();

TEST_NOTEQUAL(s1->id(), s2->id(), "Testing if IDs are unique.");

TEST_EQUAL(sessions.size(), 2, "Testing if size match.");

TEST_END;

#endif/*TEST_SESSION*/