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source: orxonox.OLD/trunk/src/util/garbage_collector.cc @ 5149

Last change on this file since 5149 was 5115, checked in by bensch, 19 years ago

orxonox/trunk: reimplemented the list functions, as i did before in revision 5110.
This time, i looked out for the bugs, and i think i found one

@patrick: i know, that you do not want to code at the moment… :/ → see mail

File size: 4.6 KB
Line 
1/*
2   orxonox - the future of 3D-vertical-scrollers
3
4   Copyright (C) 2004 orx
5
6   This program is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 2, or (at your option)
9   any later version.
10
11   ### File Specific:
12   main-programmer: Patrick Boenzli
13   co-programmer: ...
14*/
15
16#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_GARBAGE_COLLECTOR
17
18#include "garbage_collector.h"
19
20#include "state.h"
21#include "world_entity.h"
22#include "null_parent.h"
23
24#include "list.h"
25
26using namespace std;
27
28GarbageCollector* GarbageCollector::singletonRef = 0;
29
30/**
31 *  standard constructor
32*/
33GarbageCollector::GarbageCollector ()
34{
35   this->setClassID(CL_GARBAGE_COLLECTOR, "GarbageCollector");
36   this->setName("GarbageCollector");
37
38   this->collectedObjects = NULL;
39   this->unusedContainers = NULL;
40
41   this->time = 0;
42   this->delay = 5.0f; /* clean up all 5.0 seconds */
43}
44
45
46/**
47 *  standard deconstructor
48*/
49GarbageCollector::~GarbageCollector ()
50{
51  // delete what has to be deleted here
52}
53
54/**
55 *  this sets the collection delay
56 * @param delay: the delay
57
58   after this delay, the garbage collector starts its work and begins to collect unused object
59   to delete them afterwards. only objects in the worldentity list from the world object are lookded
60   at.
61*/
62void GarbageCollector::setCollectionDelay(float delay)
63{
64  this->delay = delay;
65}
66
67
68/**
69 *  this foreces a garbage collection
70
71   if this function is called, the gc tries to initiate the garbage collection routines. actually
72   this should always work.
73*/
74void GarbageCollector::forceCollection()
75{
76  /* just make the time slitely bigger than the delay */
77  this->time = this->delay + 1;
78  /* and update, to get rid of the unused objects */
79  this->update();
80}
81
82
83/**
84 * collect an Object, that should be scheduled for clearing.
85 * @param object the Object to schedule.
86 */
87void GarbageCollector::collect(BaseObject* object)
88{
89  State::getWorldEntityList()->remove(dynamic_cast<WorldEntity*>(object));
90  FastObjectMember* tmpC;
91  if (unlikely(this->unusedContainers == NULL))
92  {
93    tmpC = new FastObjectMember;
94  }
95  else
96  {
97    tmpC = this->unusedContainers;
98    this->unusedContainers = this->unusedContainers->next;
99  }
100
101  tmpC->next = this->collectedObjects;
102  tmpC->objectPointer = object;
103  this->collectedObjects = tmpC;
104}
105
106/**
107 *  this ticks the GarbageCollector to give it the time pulse
108 * @param time: the time passed since last tick
109
110   like every other tick function eg. worldentity
111*/
112void GarbageCollector::tick(float time)
113{
114  this->time += time;
115}
116
117
118void GarbageCollector::update()
119{
120  if (this->time < this->delay || this->collectedObjects == NULL)
121    return;
122  else
123  {
124    FastObjectMember* tmpC = this->collectedObjects;
125    FastObjectMember* moveC;
126    while (tmpC != NULL)
127    {
128      //WorldEntity* entity = dynamic_cast<WorldEntity*>(tmpC->objectPointer);
129      //State::getWorldEntityList()->remove(entity);
130      //entity->remove();
131      FastFactory::kill(tmpC->objectPointer, true);
132
133      moveC = tmpC->next;
134      tmpC->next = this->unusedContainers;
135      this->unusedContainers = tmpC;
136      tmpC = moveC;
137    }
138    this->collectedObjects = NULL;
139  }
140}
141
142/**
143 *  this updated the gargabe collection, if the time is ready
144*/
145// void GarbageCollector::update()
146// {
147//   if( this->time < this->delay)
148//     return;
149//   /* garbage collect */
150//   PRINTF(3)("=============================\n");
151//   PRINTF(3)("Processing Garbage Collection\n");
152//   PRINTF(3)("=============================\n");
153//   int counter = 0;
154//
155//   tList<WorldEntity>* list = State::getWorldEntityList();
156//
157//   tIterator<WorldEntity>* iterator = list->getIterator();
158//   WorldEntity* entity = iterator->firstElement();
159//   while( entity != NULL)
160//     {
161//       if( entity->isFinalized())
162//         {
163//           PRINTF(4)("= finalizing object\n");
164//           ++counter;
165//
166//           /* first remove out of entity list */
167//           list->remove(entity);
168//           /* second remove out of pnode tree */
169//           entity->remove();
170//           /* then finaly delete reference */
171//           //delete entity;
172//           //FastFactory::kill();
173//           //ObjectManager::getInstance()->addToDeadList(entity->getClassID() & CL_MASK_LOWLEVEL_CLASS, entity);
174//         }
175//       entity = iterator->nextElement();
176//     }
177//
178//   PRINTF(3)("= collected %i unused objects\n", counter);
179//   PRINTF(3)("=============================\n");
180//
181//   //ObjectManager::getInstance()->debug();
182//
183//   /* reset time to count again up to this->delay */
184//   this->time = 0;
185// }
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