source: src/LinkedCell/LinkedCell_Model_changeModel.cpp@ 8c31865

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Last change on this file since 8c31865 was 8c31865, checked in by Frederik Heber <heber@…>, 13 years ago

Added new class LinkedCellArrayCache that performs the lazy updates on a LinkedCellArray.

  • basically, we cache all write operations and perform them first when there is a read operation that requires an up-to-date structure.
  • we cannot do this via the Cacheable pattern was there we always have a return value of the update structure. It is currently unknown how to initialize a cached pointer (apart from always checking for this in the update function).
  • Property mode set to 100644
File size: 2.2 KB
Line 
1/*
2 * Project: MoleCuilder
3 * Description: creates and alters molecular systems
4 * Copyright (C) 2011 University of Bonn. All rights reserved.
5 * Please see the LICENSE file or "Copyright notice" in builder.cpp for details.
6 */
7
8/*
9 * LinkedCell_Model_changeModel.cpp
10 *
11 * Created on: Dec 20, 2011
12 * Author: heber
13 */
14
15// include config.h
16#ifdef HAVE_CONFIG_H
17#include <config.h>
18#endif
19
20#include "CodePatterns/MemDebug.hpp"
21
22#include "LinkedCell_Model_changeModel.hpp"
23
24#include "CodePatterns/toString.hpp"
25
26/** Constructor of LinkedCell_Model::changeModel.
27 *
28 */
29LinkedCell::LinkedCell_Model::changeModel::changeModel(const double distance) :
30 Observable(std::string("LinkedCell_Model("+toString(distance)+")::changeModel"))
31{}
32
33/** Destructor of LinkedCell_Model::changeModel.
34 *
35 */
36LinkedCell::LinkedCell_Model::changeModel::~changeModel()
37{
38 // remove all remaining updates in the queue
39 for (UpdateQueueMap::iterator iter = queue.begin();
40 !queue.empty();
41 iter = queue.begin()) {
42 delete iter->second;
43 queue.erase(iter);
44 }
45}
46
47/** Adds an Update instance to the internal queue.
48 *
49 * @param Walker node which is the update object
50 * @param _updateMethod bound function (to LinkedCell_Model instance) of the update function
51 */
52void LinkedCell::LinkedCell_Model::changeModel::addUpdate(
53 const TesselPoint *Walker,
54 const LinkedCell_Model::Update::PriorityLevel priority,
55 boost::function<void (const TesselPoint *)> _updateMethod
56 )
57{
58 UpdateQueueMap::iterator iter = queue.find(Walker);
59 if (iter != queue.end()) {
60 if(iter->second->getPriority() >= priority) {
61 // replace present update with new one
62 OBSERVE;
63 delete iter->second;
64 iter->second = new Update(_updateMethod, Walker, priority);
65 }
66 } else {
67 // insert new update
68 OBSERVE;
69 queue.insert( std::make_pair(Walker, new Update(_updateMethod, Walker, priority)) );
70 }
71}
72
73/** Empties changeModel::queue by performing all update functions.
74 *
75 */
76void LinkedCell::LinkedCell_Model::changeModel::performUpdates()
77{
78 for (UpdateQueueMap::iterator iter = queue.begin();
79 !queue.empty();
80 iter = queue.begin()) {
81 // perform update
82 (*iter->second)();
83 // remove update
84 delete iter->second;
85 queue.erase(iter);
86 }
87}
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