129 lines
3.1 KiB
C
129 lines
3.1 KiB
C
/*++
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Copyright (c) 1989 Microsoft Corporation
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Module Name:
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tsplay.c
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Abstract:
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Test program for the Splay Procedures
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Author:
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Gary Kimura [GaryKi] 24-May-1989
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--*/
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#define DbgPrint DbgPrint
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#include <stdio.h>
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#include "nt.h"
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#include "ntrtl.h"
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#include "triangle.h"
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ULONG RtlRandom (IN OUT PULONG Seed);
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typedef struct _TREE_NODE {
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CLONG Data;
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TRI_SPLAY_LINKS Links;
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} TREE_NODE;
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typedef TREE_NODE *PTREE_NODE;
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TREE_NODE Buffer[2048];
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PTREE_NODE TreeInsert (IN PTREE_NODE Root, IN PTREE_NODE Node);
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VOID PrintTree (IN PTREE_NODE Node);
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int _CDECL main(int argc, char *argv[])
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{
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PTREE_NODE Root;
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ULONG i;
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ULONG Seed;
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DbgPrint("Start TriangleTest()\n");
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Root = NULL;
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Seed = 0;
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for (i=0; i<2048; i++) {
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Buffer[i].Data = RtlRandom(&Seed);
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Buffer[i].Data = Buffer[i].Data % 512;
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TriInitializeSplayLinks(&Buffer[i].Links);
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Root = TreeInsert(Root, &Buffer[i]);
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}
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PrintTree(Root);
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DbgPrint("End TriangleTest()\n");
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return TRUE;
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}
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PTREE_NODE TreeInsert (IN PTREE_NODE Root, IN PTREE_NODE Node)
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{
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PTRI_SPLAY_LINKS Temp;
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if (Root == NULL) {
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//DbgPrint("Add as root %u\n", Node->Data);
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return Node;
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}
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while (TRUE) {
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if (Root->Data == Node->Data) {
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//DbgPrint("Delete %u\n", Node->Data);
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Temp = TriDelete(&Root->Links);
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if (Temp == NULL) {
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return NULL;
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} else {
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return CONTAINING_RECORD(Temp, TREE_NODE, Links);
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}
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}
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if (Root->Data < Node->Data) {
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// Go right
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if (TriRightChild(&Root->Links) == NULL) {
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//DbgPrint("Add as right child %u\n", Node->Data);
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TriInsertAsRightChild(&Root->Links, &Node->Links);
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return CONTAINING_RECORD(TriSplay(&Node->Links), TREE_NODE, Links);
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} else {
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Root = CONTAINING_RECORD(TriRightChild(&Root->Links), TREE_NODE, Links);
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}
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} else {
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// Go Left
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if (TriLeftChild(&Root->Links) == NULL) {
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//DbgPrint("Add as left child %u\n", Node->Data);
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TriInsertAsLeftChild(&Root->Links, &Node->Links);
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return CONTAINING_RECORD(TriSplay(&Node->Links), TREE_NODE, Links);
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} else {
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Root = CONTAINING_RECORD(TriLeftChild(&Root->Links), TREE_NODE, Links);
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}
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}
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}
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}
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VOID PrintTree (IN PTREE_NODE Node)
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{
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PTRI_SPLAY_LINKS Temp;
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ULONG LastValue;
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if (Node == NULL) {
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return;
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}
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// find smallest value
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while (TriLeftChild(&Node->Links) != NULL) {
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Node = CONTAINING_RECORD(TriLeftChild(&Node->Links), TREE_NODE, Links);
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}
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LastValue = Node->Data;
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//DbgPrint("%u\n", Node->Data);
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// while the is a real successor we print the successor value
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while ((Temp = TriRealSuccessor(&Node->Links)) != NULL) {
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Node = CONTAINING_RECORD(Temp, TREE_NODE, Links);
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if (LastValue >= Node->Data) {
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DbgPrint("TestSplay Error\n");
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}
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LastValue = Node->Data;
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//DbgPrint("%u\n", Node->Data);
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}
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} |