Move files in src/ include/

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Patrick Niklaus 2016-01-02 13:55:06 +01:00
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/*
Copyright (c) 2015, Project OSRM contributors
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this list
of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this
list of conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef BFS_COMPONENTS_HPP_
#define BFS_COMPONENTS_HPP_
#include "../typedefs.h"
#include "../data_structures/restriction_map.hpp"
#include <queue>
#include <unordered_set>
// Explores the components of the given graph while respecting turn restrictions
// and barriers.
template <typename GraphT> class BFSComponentExplorer
{
public:
BFSComponentExplorer(const GraphT &dynamic_graph,
const RestrictionMap &restrictions,
const std::unordered_set<NodeID> &barrier_nodes)
: m_graph(dynamic_graph), m_restriction_map(restrictions), m_barrier_nodes(barrier_nodes)
{
BOOST_ASSERT(m_graph.GetNumberOfNodes() > 0);
}
/*!
* Returns the size of the component that the node belongs to.
*/
unsigned int GetComponentSize(const NodeID node) const
{
BOOST_ASSERT(node < m_component_index_list.size());
return m_component_index_size[m_component_index_list[node]];
}
unsigned int GetNumberOfComponents() { return m_component_index_size.size(); }
/*!
* Computes the component sizes.
*/
void run()
{
std::queue<std::pair<NodeID, NodeID>> bfs_queue;
unsigned current_component = 0;
BOOST_ASSERT(m_component_index_list.empty());
BOOST_ASSERT(m_component_index_size.empty());
unsigned num_nodes = m_graph.GetNumberOfNodes();
m_component_index_list.resize(num_nodes, std::numeric_limits<unsigned>::max());
BOOST_ASSERT(num_nodes > 0);
// put unexplorered node with parent pointer into queue
for (NodeID node = 0; node < num_nodes; ++node)
{
if (std::numeric_limits<unsigned>::max() == m_component_index_list[node])
{
unsigned size = ExploreComponent(bfs_queue, node, current_component);
// push size into vector
m_component_index_size.emplace_back(size);
++current_component;
}
}
}
private:
/*!
* Explores the current component that starts at node using BFS.
*/
unsigned ExploreComponent(std::queue<std::pair<NodeID, NodeID>> &bfs_queue,
NodeID node,
unsigned current_component)
{
/*
Graphical representation of variables:
u v w
*---------->*---------->*
e2
*/
bfs_queue.emplace(node, node);
// mark node as read
m_component_index_list[node] = current_component;
unsigned current_component_size = 1;
while (!bfs_queue.empty())
{
// fetch element from BFS queue
std::pair<NodeID, NodeID> current_queue_item = bfs_queue.front();
bfs_queue.pop();
const NodeID v = current_queue_item.first; // current node
const NodeID u = current_queue_item.second; // parent
// increment size counter of current component
++current_component_size;
if (m_barrier_nodes.find(v) != m_barrier_nodes.end())
{
continue;
}
const NodeID to_node_of_only_restriction =
m_restriction_map.CheckForEmanatingIsOnlyTurn(u, v);
for (auto e2 : m_graph.GetAdjacentEdgeRange(v))
{
const NodeID w = m_graph.GetTarget(e2);
if (to_node_of_only_restriction != std::numeric_limits<unsigned>::max() &&
w != to_node_of_only_restriction)
{
// At an only_-restriction but not at the right turn
continue;
}
if (u != w)
{
// only add an edge if turn is not a U-turn except
// when it is at the end of a dead-end street.
if (!m_restriction_map.CheckIfTurnIsRestricted(u, v, w))
{
// only add an edge if turn is not prohibited
if (std::numeric_limits<unsigned>::max() == m_component_index_list[w])
{
// insert next (node, parent) only if w has
// not yet been explored
// mark node as read
m_component_index_list[w] = current_component;
bfs_queue.emplace(w, v);
}
}
}
}
}
return current_component_size;
}
std::vector<unsigned> m_component_index_list;
std::vector<NodeID> m_component_index_size;
const GraphT &m_graph;
const RestrictionMap &m_restriction_map;
const std::unordered_set<NodeID> &m_barrier_nodes;
};
#endif // BFS_COMPONENTS_HPP_

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/*
Copyright (c) 2014, Project OSRM contributors
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this list
of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this
list of conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef LRUCACHE_HPP
#define LRUCACHE_HPP
#include <list>
#include <unordered_map>
template <typename KeyT, typename ValueT> class LRUCache
{
private:
struct CacheEntry
{
CacheEntry(KeyT k, ValueT v) : key(k), value(v) {}
KeyT key;
ValueT value;
};
unsigned capacity;
std::list<CacheEntry> itemsInCache;
std::unordered_map<KeyT, typename std::list<CacheEntry>::iterator> positionMap;
public:
explicit LRUCache(unsigned c) : capacity(c) {}
bool Holds(KeyT key)
{
if (positionMap.find(key) != positionMap.end())
{
return true;
}
return false;
}
void Insert(const KeyT key, ValueT &value)
{
itemsInCache.push_front(CacheEntry(key, value));
positionMap.insert(std::make_pair(key, itemsInCache.begin()));
if (itemsInCache.size() > capacity)
{
positionMap.erase(itemsInCache.back().key);
itemsInCache.pop_back();
}
}
void Insert(const KeyT key, ValueT value)
{
itemsInCache.push_front(CacheEntry(key, value));
positionMap.insert(std::make_pair(key, itemsInCache.begin()));
if (itemsInCache.size() > capacity)
{
positionMap.erase(itemsInCache.back().key);
itemsInCache.pop_back();
}
}
bool Fetch(const KeyT key, ValueT &result)
{
if (Holds(key))
{
CacheEntry e = *(positionMap.find(key)->second);
result = e.value;
// move to front
itemsInCache.splice(itemsInCache.begin(), itemsInCache, positionMap.find(key)->second);
positionMap.find(key)->second = itemsInCache.begin();
return true;
}
return false;
}
unsigned Size() const { return itemsInCache.size(); }
};
#endif // LRUCACHE_HPP

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/*
Copyright (c) 2013, Project OSRM contributors
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this list
of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this
list of conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// KD Tree coded by Christian Vetter, Monav Project
#ifndef STATICKDTREE_HPP
#define STATICKDTREE_HPP
#include <boost/assert.hpp>
#include <vector>
#include <algorithm>
#include <stack>
#include <limits>
namespace KDTree
{
#define KDTREE_BASESIZE (8)
template <unsigned k, typename T> class BoundingBox
{
public:
BoundingBox()
{
for (unsigned dim = 0; dim < k; ++dim)
{
min[dim] = std::numeric_limits<T>::min();
max[dim] = std::numeric_limits<T>::max();
}
}
T min[k];
T max[k];
};
struct NoData
{
};
template <unsigned k, typename T> class EuclidianMetric
{
public:
double operator()(const T left[k], const T right[k])
{
double result = 0;
for (unsigned i = 0; i < k; ++i)
{
double temp = (double)left[i] - (double)right[i];
result += temp * temp;
}
return result;
}
double operator()(const BoundingBox<k, T> &box, const T point[k])
{
T nearest[k];
for (unsigned dim = 0; dim < k; ++dim)
{
if (point[dim] < box.min[dim])
nearest[dim] = box.min[dim];
else if (point[dim] > box.max[dim])
nearest[dim] = box.max[dim];
else
nearest[dim] = point[dim];
}
return operator()(point, nearest);
}
};
template <unsigned k, typename T, typename Data = NoData, typename Metric = EuclidianMetric<k, T>>
class StaticKDTree
{
public:
struct InputPoint
{
T coordinates[k];
Data data;
bool operator==(const InputPoint &right)
{
for (int i = 0; i < k; i++)
{
if (coordinates[i] != right.coordinates[i])
return false;
}
return true;
}
};
explicit StaticKDTree(std::vector<InputPoint> *points)
{
BOOST_ASSERT(k > 0);
BOOST_ASSERT(points->size() > 0);
size = points->size();
kdtree = new InputPoint[size];
for (Iterator i = 0; i != size; ++i)
{
kdtree[i] = points->at(i);
for (unsigned dim = 0; dim < k; ++dim)
{
if (kdtree[i].coordinates[dim] < boundingBox.min[dim])
boundingBox.min[dim] = kdtree[i].coordinates[dim];
if (kdtree[i].coordinates[dim] > boundingBox.max[dim])
boundingBox.max[dim] = kdtree[i].coordinates[dim];
}
}
std::stack<Tree> s;
s.push(Tree(0, size, 0));
while (!s.empty())
{
Tree tree = s.top();
s.pop();
if (tree.right - tree.left < KDTREE_BASESIZE)
continue;
Iterator middle = tree.left + (tree.right - tree.left) / 2;
std::nth_element(kdtree + tree.left, kdtree + middle, kdtree + tree.right,
Less(tree.dimension));
s.push(Tree(tree.left, middle, (tree.dimension + 1) % k));
s.push(Tree(middle + 1, tree.right, (tree.dimension + 1) % k));
}
}
~StaticKDTree() { delete[] kdtree; }
bool NearestNeighbor(InputPoint *result, const InputPoint &point)
{
Metric distance;
bool found = false;
double nearestDistance = std::numeric_limits<T>::max();
std::stack<NNTree> s;
s.push(NNTree(0, size, 0, boundingBox));
while (!s.empty())
{
NNTree tree = s.top();
s.pop();
if (distance(tree.box, point.coordinates) >= nearestDistance)
continue;
if (tree.right - tree.left < KDTREE_BASESIZE)
{
for (unsigned i = tree.left; i < tree.right; i++)
{
double newDistance = distance(kdtree[i].coordinates, point.coordinates);
if (newDistance < nearestDistance)
{
nearestDistance = newDistance;
*result = kdtree[i];
found = true;
}
}
continue;
}
Iterator middle = tree.left + (tree.right - tree.left) / 2;
double newDistance = distance(kdtree[middle].coordinates, point.coordinates);
if (newDistance < nearestDistance)
{
nearestDistance = newDistance;
*result = kdtree[middle];
found = true;
}
Less comperator(tree.dimension);
if (!comperator(point, kdtree[middle]))
{
NNTree first(middle + 1, tree.right, (tree.dimension + 1) % k, tree.box);
NNTree second(tree.left, middle, (tree.dimension + 1) % k, tree.box);
first.box.min[tree.dimension] = kdtree[middle].coordinates[tree.dimension];
second.box.max[tree.dimension] = kdtree[middle].coordinates[tree.dimension];
s.push(second);
s.push(first);
}
else
{
NNTree first(middle + 1, tree.right, (tree.dimension + 1) % k, tree.box);
NNTree second(tree.left, middle, (tree.dimension + 1) % k, tree.box);
first.box.min[tree.dimension] = kdtree[middle].coordinates[tree.dimension];
second.box.max[tree.dimension] = kdtree[middle].coordinates[tree.dimension];
s.push(first);
s.push(second);
}
}
return found;
}
private:
using Iterator = unsigned;
struct Tree
{
Iterator left;
Iterator right;
unsigned dimension;
Tree() {}
Tree(Iterator l, Iterator r, unsigned d) : left(l), right(r), dimension(d) {}
};
struct NNTree
{
Iterator left;
Iterator right;
unsigned dimension;
BoundingBox<k, T> box;
NNTree() {}
NNTree(Iterator l, Iterator r, unsigned d, const BoundingBox<k, T> &b)
: left(l), right(r), dimension(d), box(b)
{
}
};
class Less
{
public:
explicit Less(unsigned d)
{
dimension = d;
BOOST_ASSERT(dimension < k);
}
bool operator()(const InputPoint &left, const InputPoint &right)
{
BOOST_ASSERT(dimension < k);
return left.coordinates[dimension] < right.coordinates[dimension];
}
private:
unsigned dimension;
};
BoundingBox<k, T> boundingBox;
InputPoint *kdtree;
Iterator size;
};
}
#endif // STATICKDTREE_HPP

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/*
Copyright (c) 2015, Project OSRM contributors
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this list
of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this
list of conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef LOWER_BOUND_HPP
#define LOWER_BOUND_HPP
#include <functional>
#include <limits>
#include <queue>
#include <type_traits>
// max pq holds k elements
// insert if key is smaller than max
// if size > k then remove element
// get() always yields a bound to the k smallest element in the stream
template <typename key_type> class upper_bound
{
private:
using parameter_type =
typename std::conditional<std::is_fundamental<key_type>::value, key_type, key_type &>::type;
public:
upper_bound() = delete;
upper_bound(std::size_t size) : size(size) {}
key_type get() const
{
if (queue.size() < size)
{
return std::numeric_limits<key_type>::max();
}
return queue.top();
}
void insert(const parameter_type key)
{
if (key < get())
{
queue.emplace(key);
while (queue.size() > size)
{
queue.pop();
}
}
}
private:
std::priority_queue<key_type, std::vector<key_type>, std::less<key_type>> queue;
const std::size_t size;
};
#endif // LOWER_BOUND_HPP

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