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/*
* Copyright 2001, 2003 Adrian Thurston <thurston@colm.net>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <time.h>
#include <stdlib.h>
#include <iostream>
#include <stdio.h>
#include "avlitree.h"
#define AVLTREE_SINGULAR
#define WALKABLE
#include "avlverify.h"
#undef WALKABLE
#undef AVLTREE_SINGULAR
#include "util.h"
using namespace std;
/* Having the action change perion larger than the number of initial entries
* means that it will take longer to get to all the cases, but all the
* cases will be more thoroughly tested. The tree will be more likely to
* empty out completely and fill up with all of the entries. */
#define INITIAL_ENTRIES 64831
#define ACTION_CHANGE_PERIOD 120233
#define VERIFY_PERIOD 1119
#define COPY_PERIOD 1351
#define INCREMENT_VARIATION 10
#define STATS_PERIOD 211
#define OUTBUFSIZE 100
#define TAB_WIDTH 10
/* Test element. */
struct TreeEl : public AvliTreeEl<TreeEl>
{
TreeEl() : inTree(false) { }
TreeEl(const int key) : key(key), inTree(false) { }
int getKey() { return key; }
int key;
bool inTree;
};
/* Instantiate the entire tree. */
template class AvliTree< TreeEl, int >;
template class AvliTreeVer< TreeEl, int >;
int increment = 0;
int curIndex = 0;
int action = 1;
int curRound = 0;
/* Replace the current stats line with new stats. For one tree. */
void printStats( int treeSize, TreeEl *root )
{
/* Print stats. */
static char buf[OUTBUFSIZE] = { 0 };
char tmpBuf[OUTBUFSIZE];
if ( curRound % STATS_PERIOD == 0 ) {
memset( buf, '\b', strlen(buf) );
cout << buf;
sprintf( tmpBuf, "%i\t%i\t%s\t%s\t%i\t%i\t%li\t", curRound, increment,
action&0x1 ? "yes" : "no", action&0x2 ? "yes" : "no",
curIndex, treeSize, root ? root->height : 0 );
expandTab( buf, tmpBuf );
cout << buf;
cout.flush();
}
}
/* Find a new curIndex to use. If the increment is 0 then get
* a random curIndex. Otherwise use the increment. */
void newIndex()
{
if ( increment == 0 )
curIndex = random() % INITIAL_ENTRIES;
else
curIndex = (curIndex + increment) % INITIAL_ENTRIES;
}
/* Print the header to the stats. For one tree. */
void printHeader()
{
char buf[OUTBUFSIZE];
expandTab( buf, "round\tinc\tins\trem\tindex\tels\theight" );
cout << buf << endl;
}
int main( int argc, char **argv )
{
processArgs( argc, argv );
srandom( time(0) );
/* Make the tree and element. */
AvliTreeVer< TreeEl, int > tree;
TreeEl *allElements = new TreeEl[INITIAL_ENTRIES/2];
for ( int element = 0; element < (INITIAL_ENTRIES/2); element++ )
allElements[element].key = element;
printHeader();
for ( curRound = 0; true; curRound++ ) {
/* Do we change our action? */
if ( curRound % ACTION_CHANGE_PERIOD == 0 ) {
increment = random() % 2;
if ( increment > 0 )
increment = random() % INCREMENT_VARIATION;
action = (random()%3) + 1;
}
/* Dump stats. */
printStats( tree.treeSize, tree.root );
/* Insert one? */
if ( action&0x1 ) {
newIndex();
if ( curIndex < (INITIAL_ENTRIES/2) ) {
/* Insert from the pool of existing element. */
if ( ! allElements[curIndex].inTree ) {
tree.insert( allElements+curIndex );
allElements[curIndex].inTree = true;
}
}
else {
/* Insert a new element. */
tree.insert( curIndex );
}
}
/* Delete one? */
if ( action&0x2 ) {
newIndex();
if ( curIndex < (INITIAL_ENTRIES/2) ) {
/* Delete from the pool of existing entries. */
if ( allElements[curIndex].inTree ) {
tree.detach( allElements+curIndex );
allElements[curIndex].inTree = false;
}
}
else {
/* Delete an element that was newed. */
TreeEl *element = tree.detach( curIndex );
if ( element != 0 )
delete element;
}
}
/* Verify? */
if ( curRound % VERIFY_PERIOD == 0 )
tree.verifyIntegrity();
/* Test the deep copy? */
if ( curRound % COPY_PERIOD == 0 ) {
AvliTreeVer< TreeEl, int > copy( tree );
copy.verifyIntegrity();
copy.empty();
}
}
return 0;
}
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