/**
 * @file llmortician.cpp
 *
 * $LicenseInfo:firstyear=2005&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#include "linden_common.h"
#include "llmortician.h"

#include <list>

std::list<LLMortician*> LLMortician::sGraveyard;

bool LLMortician::sDestroyImmediate = false;

LLMortician::~LLMortician()
{
    sGraveyard.remove(this);
}

size_t LLMortician::logClass(std::stringstream &str)
{
    auto size = sGraveyard.size();
    str << "Mortician graveyard count: " << size;
    str << " Zealous: " << (sDestroyImmediate ? "True" : "False");
    if (size == 0)
    {
        return size;
    }
    str << " Output:\n";
    std::list<LLMortician*>::iterator iter = sGraveyard.begin();
    std::list<LLMortician*>::iterator end = sGraveyard.end();
    while (iter!=end)
    {
        LLMortician* dead = *iter;
        iter++;
        // Be as detailed and safe as possible to figure out issues
        str << "Pointer: " << dead;
        if (dead)
        {
            try
            {
                str << " Is dead: " << (dead->isDead() ? "True" : "False");
                str << " Name: " << typeid(*dead).name();
            }
            catch (...)
            {

            }
        }
        str << "\n";
    }
    str << "--------------------------------------------";
    return size;
}

void LLMortician::updateClass()
{
    while (!sGraveyard.empty())
    {
        LLMortician* dead = sGraveyard.front();
        delete dead;
    }
}

void LLMortician::die()
{
    // It is valid to call die() more than once on something that hasn't died yet
    if (sDestroyImmediate)
    {
        // *NOTE: This is a hack to ensure destruction order on shutdown (relative to non-mortician controlled classes).
        mIsDead = true;
        delete this;
        return;
    }
    else if (!mIsDead)
    {
        mIsDead = true;
        sGraveyard.push_back(this);
    }
}

// static
void LLMortician::setZealous(bool b)
{
    sDestroyImmediate = b;
}