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tree.hpp
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tree.hpp
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#include <map>
#include <list>
#include <omp.h>
using namespace std;
template <
typename IdType,
typename ValueType,
typename SizeType>
class InputForest
{
typedef map<ValueType, IdType> MapT;
typedef typename MapT::iterator MapTI;
typedef pair<ValueType, IdType> MapTP;
typedef list<IdType> ListT;
static const SizeType MAX_NODEID = 1048576;
static const SizeType PAGE_SIZE = 1024;
static const SizeType MAX_PAGE = MAX_NODEID / PAGE_SIZE + 1;
static const ValueType NULL_Value = -1;
static const IdType NULL_Id = -1;
public:
MapT **maps;
ListT *empty_nodes;
int num_threads;
SizeType num_inputs;
SizeType page_counter;
SizeType *input_widths;
int **markers;
//SizeType MAX_NODEID;// = 1048576;
//SizeType PAGE_SIZE;// = 1024;
//SizeType MAX_PAGE;// = MAX_NODEID / PAGE_SIZE + 1;
InputForest() :
maps (NULL),
empty_nodes (NULL),
num_threads (0),
num_inputs (0),
page_counter (0),
input_widths (NULL),
markers (NULL)
//MAX_NODEID (1048576),
//PAGE_SIZE (1024),
//MAX_PAGE (MAX_NODEID / PAGE_SIZE +1)
{
}
~InputForest()
{
Release();
}
int Release()
{
int retval = 0;
for (SizeType i=0; i<page_counter; i++)
{
maps[i]->clear();
delete[] maps[i];maps[i] = NULL;
}
delete[] maps; maps = NULL;
delete[] empty_nodes; empty_nodes = NULL;
delete[] input_widths; input_widths = NULL;
for (int i=0; i<num_threads; i++)
{
delete[] markers[i]; markers[i] = NULL;
}
delete[] markers; markers=NULL;
page_counter = 0;
return retval;
}
int Init(int num_threads, SizeType num_inputs, SizeType *input_widths)
{
int retval = 0;
retval = Release();
if (retval != 0) return retval;
this->num_threads = num_threads;
maps = new MapT*[MAX_PAGE];
for (SizeType i=0; i<MAX_PAGE; i++)
maps[i] = NULL;
empty_nodes = new ListT[num_threads];
for (int i=0; i<num_threads; i++)
{
maps[i] = new MapT[PAGE_SIZE];
for (IdType map_id = i*PAGE_SIZE; map_id < (i+1) * PAGE_SIZE; map_id++)
{
empty_nodes[i].push_front(map_id);
}
}
page_counter = num_threads;
this->input_widths = new SizeType[num_inputs];
memcpy(this->input_widths, input_widths, sizeof(SizeType) * num_inputs);
SizeType max_widths = 0;
for (SizeType i=0; i<num_inputs; i++)
if (input_widths[i] > max_widths) max_widths= input_widths[i];
markers = new int*[num_threads];
for (int i=0; i<num_threads; i++)
{
markers[i] = new int[1<<max_widths];
memset(markers[i], 0, sizeof(int) * (1<<max_widths));
}
return retval;
}
int NewNode(int thread_num, IdType &node_id, MapT* &map)
{
int retval = 0;
if (thread_num > num_threads)
{
cerr<<"Error ["<<__FILE__<<","<<__LINE__<<"]: "
<<" thread_num "<<thread_num<<" > "<<num_threads<<endl;
return 1;
}
if (empty_nodes[thread_num].empty())
{
SizeType counter = 0;
#pragma omp atomic capture
//{
counter = page_counter++;
//page_counter ++;
//}
maps[counter] = new MapT[PAGE_SIZE];
for (IdType map_id = counter*PAGE_SIZE; map_id < (counter+1) * PAGE_SIZE; map_id++)
{
empty_nodes[thread_num].push_front(map_id);
}
}
node_id = empty_nodes[thread_num].back();
empty_nodes[thread_num].pop_back();
map = GetMap(node_id);
return retval;
}
MapT* GetMap(IdType node_Id)
{
return &maps[node_Id / PAGE_SIZE][node_Id % PAGE_SIZE];
}
int ReleaseNode(int thread_num, IdType node_Id)
{
int retval = 0;
if (node_Id >= page_counter * PAGE_SIZE)
{
cerr<<"Error ["<<__FILE__<<","<<__LINE__<<"]: "
<<" node_id "<<node_Id<<" >= "<<page_counter * PAGE_SIZE<<endl;
}
GetMap(node_Id)->clear();
empty_nodes[thread_num].push_front(node_Id);
return retval;
}
int NewTree(int thread_num, SizeType input_num, ValueType input_value, IdType &root_Id)
{
MapT* current_map = NULL, *next_map = NULL;
IdType node_Id = NULL_Id;
int retval = 0;
for (SizeType i=0; i<num_inputs; i++)
{
retval = NewNode(thread_num, node_Id, next_map);
if (retval !=0) return retval;
if (i==0)
{
root_Id = node_Id;
} else {
current_map->insert(MapTP(
(i-1 == input_num) ? input_value : NULL_Value, node_Id));
}
if (i == num_inputs-1)
{
next_map->insert(MapTP(
(i == input_num) ? input_value : NULL_Value, NULL_Id));
}
current_map = next_map;
}
return retval;
}
int ReleaseTree(int thread_num, IdType root_Id)
{
MapT* map=GetMap(root_Id);
int retval = 0;
for (MapTI it = map->begin(); it != map->end(); it++)
{
if (it->second != NULL_Id) retval = ReleaseTree(thread_num, it->second);
if (retval != 0) return retval;
}
retval = ReleaseNode(thread_num, root_Id);
return retval;
}
int CopyTree(int thread_num, IdType org_root, IdType &new_root)
{
MapT* new_map = NULL;
MapT* org_map = GetMap(org_root);
int retval = 0;
retval = NewNode(thread_num, new_root, new_map);
if (retval != 0) return retval;
for (MapTI it = org_map->begin(); it != org_map->end(); it++)
{
if (it->second == NULL_Id)
{
new_map->insert(MapTP(it->first, NULL_Id));
} else {
IdType new_child = NULL_Id;
retval = CopyTree(thread_num, it->second, new_child);
if (retval != 0) return retval;
new_map->insert(MapTP(it->first, new_child));
}
}
return retval;
}
int AddTree(int thread_num, IdType root_A, IdType root_B, IdType& root_C, SizeType level)
{
MapT* map_A = GetMap(root_A);
MapT* map_B = GetMap(root_B);
MapT* map_C = NULL;
ValueType value_A = NULL_Value, value_B = NULL_Value;//, value_C = NULL_Value;
IdType Id_A = NULL_Id, Id_B = NULL_Id, Id_C = NULL_Id;
MapTI it_A, it_B;
int retval = 0;
bool has_A = false;
retval = NewNode(thread_num, root_C, map_C);
if (retval != 0) return retval;
for (it_A = map_A->begin(); it_A != map_A->end(); it_A++)
{
value_A = it_A->first;
Id_A = it_A->second;
if (value_A == NULL_Value)
{ // *X* + *.*
if (Id_A == NULL_Id)
{ // *X + *.
map_C->insert(MapTP(NULL_Value, NULL_Id));
} else { // *X... + *....
bool has_B = false;
for (it_B = map_B->begin(); it_B != map_B->end(); it_B++)
{
value_B = it_B->first;
Id_B = it_B->second;
if (value_B == NULL_Value)
{ // *X... + *X...
retval = AddTree(thread_num, Id_A, Id_B, Id_C, level+1);
if (retval != 0) return retval;
map_C->insert(MapTP(NULL_Value, Id_C));
break;
} else { // *X... + *B...
retval = CopyTree(thread_num, Id_B, Id_C);
if (retval != 0) return retval;
map_C->insert(MapTP(value_B, Id_C));
if (!has_B)
{
memset(markers[thread_num], 0, sizeof(int) * (1<<input_widths[level]));
has_B = true;
}
markers[thread_num][value_B] = 1;
}
}
if (has_B)
{ // *!B...
for (value_A = 0; value_A < (1<<input_widths[level]); value_A++)
{
if (markers[thread_num][value_A] == 1) continue;
retval = CopyTree(thread_num, Id_A, Id_C);
if (retval != 0) return retval;
map_C->insert(MapTP(value_A, Id_C));
}
}
}
break;
} else { // *A* + *.*
has_A = true;
if (Id_A == NULL_Id)
{ // *A + *.
map_C->insert(MapTP(value_A, NULL_Id));
} else { // *A... + *....
it_B = map_B->find(value_A);
if (it_B == map_B->end())
{ // *A... + *!A...
retval = CopyTree(thread_num, Id_A, Id_C);
if (retval != 0) return retval;
map_C->insert(MapTP(value_A, Id_C));
} else { // *A... + *A...
retval = AddTree(thread_num, Id_A, it_B->second, Id_C, level+1);
if (retval !=0) return retval;
map_C->insert(MapTP(value_A, Id_C));
}
}
}
}
if (has_A)
{ // *A* + *.*
for (it_B = map_B->begin(); it_B != map_B->end(); it_B++)
{
value_B = it_B->first;
Id_B = it_B->second;
if (value_B == NULL_Value)
{ // *A* + *X*
if (Id_B == NULL_Id)
{ // *A + *X
retval = ReleaseTree(thread_num, Id_C);
if (retval != 0) return retval;
retval = NewNode(thread_num, root_C, map_C);
map_C->insert(MapTP(NULL_Value, NULL_Id));
} else { // *A... + *X...
memset(markers[thread_num], 0, sizeof(int) * (1<<input_widths[level]));
for (it_A = map_A->begin(); it_A != map_A->end(); it_A++)
markers[thread_num][it_A->first] = 1;
for (value_B = 0; value_B < (1<<input_widths[level]); value_B++)
{ // *!A...
if (markers[thread_num][value_B] == 1) continue;
retval = CopyTree(thread_num, Id_B, Id_C);
if (retval != 0) return retval;
map_C->insert(MapTP(value_B, Id_C));
}
}
break;
} else { // *A* + *B*
it_A = map_A->find(value_B);
if (it_A == map_A->end())
{ // *!B* + *B*
if (Id_B != NULL_Id)
{ // *!B... + *B...
retval = CopyTree(thread_num, Id_B, Id_C);
if (retval !=0) return retval;
map_C->insert(MapTP(value_B, Id_C));
} else { // *!B + *B
map_C->insert(MapTP(value_B, NULL_Id));
}
}
}
}
}
return retval;
}
int SubTree(int thread_num, IdType root_A, IdType root_B, IdType& root_C, SizeType level)
{
MapT* map_A = GetMap(root_A);
MapT* map_B = GetMap(root_B);
MapT* map_C = NULL;
ValueType value_A = NULL_Value, value_B = NULL_Value;//, value_C = NULL_Value;
IdType Id_A = NULL_Id, Id_B = NULL_Id, Id_C = NULL_Id;
MapTI it_A, it_B;
int retval = 0;
retval = NewNode(thread_num, root_C, map_C);
if (retval != 0) return retval;
for (it_A = map_A->begin(); it_A != map_A->end(); it_A++)
{
value_A = it_A->first;
Id_A = it_A->second;
if (value_A == NULL_Value)
{ // *X* - *.*
if (Id_A == NULL_Id)
{ // *X - *.
bool has_B = false;
for (it_B = map_B->begin(); it_B != map_B->end(); it_B++)
{
value_B = it_B->first;
Id_B = it_B->second;
if (value_B == NULL_Value)
{ // *X - *X
retval = ReleaseTree(thread_num, root_C);
if (retval != 0) return retval;
root_C = NULL_Id; return retval;
break;
} else { // *X - *B
if (!has_B)
{
memset(markers[thread_num], 0, sizeof(int) * (1<<input_widths[level]));
has_B = true;
}
markers[thread_num][value_B] = 1;
}
}
if (has_B)
{ // *!B
for (value_A = 0; value_A < (1<<input_widths[level]); value_A++)
{
if (markers[thread_num][value_A] == 1) continue;
map_C->insert(MapTP(value_A, NULL_Id));
}
}
break;
} else { //*X... - *....
bool has_B = false;
for (it_B = map_B->begin(); it_B != map_B->end(); it_B++)
{
value_B = it_B->first;
Id_B = it_B->second;
if (value_B == NULL_Value)
{ // *X... - *X...
retval = SubTree(thread_num, Id_A, Id_B, Id_C, level+1);
if (retval != 0) return retval;
if (Id_C != NULL_Id) map_C->insert(MapTP(NULL_Value, Id_C));
break;
} else { // *X... - *B...
if (!has_B)
{
memset(markers[thread_num], 0, sizeof(int) * (1<<input_widths[level]));
has_B = true;
}
markers[thread_num][value_B] = 1;
retval = SubTree(thread_num, Id_A, Id_B, Id_C, level+1);
if (retval != 0) return retval;
if (Id_C != NULL_Id) map_C->insert(MapTP(value_B, Id_C));
}
}
if (has_B)
{ // *!B...
for (value_A = 0; value_A < (1<<input_widths[level]); value_A++)
{
if (markers[thread_num][value_A] == 1) continue;
retval = CopyTree(thread_num, Id_A, Id_C);
if (retval != 0) return retval;
map_C->insert(MapTP(value_A, Id_C));
}
}
}
break;
} else { // *A* - *.*
if (Id_A == NULL_Id)
{ // *A - *.
it_B = map_B->find(value_A);
if (it_B == map_B->end())
{
if (map_B->begin()->first == NULL_Value)
{ // *A - *X
} else {
map_C->insert(MapTP(value_A, NULL_Id));
}
} else { // *A-*A
}
} else { //*A... - *....
if (map_B->begin()->first == NULL_Value)
{ // *A... - *X...
retval = SubTree(thread_num, Id_A, Id_B, Id_C, level+1);
if (retval != 0) return retval;
if (Id_C!=NULL_Id) map_C->insert(MapTP(value_A, Id_C));
} else {
it_B = map_B->find(value_A);
if (it_B != map_B->end())
{ // *A... - *A...
retval = SubTree(thread_num, Id_A, Id_B, Id_C, level+1);
if (retval != 0) return retval;
if (Id_C!=NULL_Id) map_C->insert(MapTP(value_A, Id_C));
}
}
}
}
}
if (map_C->size() == 0)
{
retval = ReleaseTree(thread_num, root_C);
if (retval != 0) return retval;
root_C = NULL_Id;
}
return retval;
}
int Is_EqualTree(IdType root_A, IdType root_B, bool& is_equal)
{
MapT* map_A = GetMap(root_A);
MapT* map_B = GetMap(root_B);
ValueType value_A = NULL_Value, value_B = NULL_Value;
IdType Id_A = NULL_Id, Id_B = NULL_Id;
int retval = 0;
MapTI it_A, it_B;
for (it_A = map_A->begin(); it_A != map_A->end(); it_A++)
{
value_A = it_A->first;
Id_A = it_A->second;
it_B = map_B->find(value_A);
if (it_B == MapT::end())
{
is_equal = false;
return 0;
}
value_B = it_B->first;
Id_B = it_B->second;
if (Id_A == NULL_Id)
{ // *A, *A*
if (Id_B == NULL_Id)
{ // *A, *A
continue;
} else { // *A, *A...
is_equal = false;
return 0;
}
} else if (Id_B == NULL_Id)
{ // *A..., *A
is_equal = false;
return 0;
} else { // *A..., *A...
retval = Is_EqualTree(Id_A, Id_B, is_equal);
if (retval != 0) return retval;
if (!is_equal) return 0;
continue;
}
}
for (it_B = map_B->begin(); it_B != map_B->end(); it_B++)
{
value_B = it_B->first;
Id_B = it_B->second;
it_A = map_A->find(value_A);
if (it_A == MapT::End())
{
is_equal = false;
return 0;
}
}
is_equal = true;
return retval;
}
int AndTree(int thread_num, IdType root_A, IdType root_B, IdType& root_C, SizeType level)
{
MapT* map_A = GetMap(root_A);
MapT* map_B = GetMap(root_B);
MapT* map_C = GetMap(root_C);
ValueType value_A = NULL_Value, value_B = NULL_Value;//, value_C = NULL_Value;
IdType Id_A = NULL_Id, Id_B = NULL_Id, Id_C = NULL_Id;
MapTI it_A, it_B;
int retval = 0;
retval = NewNode(thread_num, root_C, map_C);
if (retval !=0) return retval;
for (it_A = map_A->begin(); it_A != map_A->end(); it_A++)
{
value_A = it_A->first;
Id_A = it_A->second;
if (value_A == NULL_Value)
{ // *X* & *.*
//bool has_B = false;
for (it_B = map_B->begin(); it_B != map_B->end(); it_B++)
{
value_B = it_B->first;
Id_B = it_B->second;
if (value_B == NULL_Value)
{ // *X* & *X*
if (Id_A == NULL_Id && Id_B == NULL_Id)
{ // *X & *X
map_C->insert(MapTP(NULL_Value, NULL_Id));
} else { // *X... & *X...
retval = AndTree(thread_num, Id_A, Id_B, Id_C, level+1);
if (retval !=0) return retval;
if (Id_C != NULL_Id) map_C->insert(MapTP(NULL_Value, Id_C));
}
} else { // *X* & *B*
//has_B = true;
if (Id_B == NULL_Id)
{ // *X & *B
map_C->insert(MapTP(value_B, NULL_Id));
} else { // *X... & *B...
retval = AddTree(thread_num, Id_A, Id_B, Id_C, level+1);
if (retval != 0) return retval;
if (Id_C != NULL_Id) map_C->insert(MapTP(value_B, Id_C));
}
}
}
break;
} else { // *A* & *.*
if (map_B->begin()->first == NULL_Value)
{ // *A* & *X*
Id_B = map_B->begin()->second;
if (Id_A == NULL_Id)
{ // *A & *X
map_C->insert(MapTP(value_A, NULL_Id));
} else { // *A... & *X...
retval = AddTree(thread_num, Id_A, Id_B, Id_C, level+1);
if (retval !=0) return retval;
if (Id_C != NULL_Id) map_C->insert(MapTP(value_A, Id_C));
}
} else { // *A* & *B*
it_B = map_B->find(value_A);
if (it_B != map_B->end())
{ // *A* & *A*
if (Id_A == NULL_Id)
{ // *A & *A
map_C->insert(MapTP(value_A, NULL_Id));
} else { // *A... & *A...
retval = AddTree(thread_num, Id_A, Id_B, Id_C, level+1);
if (retval != 0) return retval;
if (Id_C != NULL_Id) map_C->insert(MapTP(value_A, Id_C));
}
}
}
}
}
if (map_C->size() == 0)
{
retval = ReleaseTree(thread_num, root_C);
if (retval != 0) return retval;
root_C = NULL_Id;
}
return retval;
}
};