/* * Copyright (c) 2010 Gedare Bloom. * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at * http://www.rtems.com/license/LICENSE. * * $Id$ */ #include #include int numbers[20] = { 52, 99, 0, 85, 43, 44, 10, 60, 50, 19, 8, 68, 48, 57, 17, 67, 90, 12, 77, 71}; int numbers_sorted[20] = { 0, 8, 10, 12, 17, 19, 43, 44, 48, 50, 52, 57, 60, 67, 68, 71, 77, 85, 90, 99}; typedef struct { int id; int key; rtems_rbtree_node Node; } test_node; int test_compare_function ( rtems_rbtree_node* n1, rtems_rbtree_node* n2 ) { int key1 = rtems_rbtree_container_of( n1, test_node, Node )->key; int key2 = rtems_rbtree_container_of( n2, test_node, Node )->key; if (key1 > key2) return 1; else if (key1 < key2) return -1; else return 0; } /* * recursively checks tree. if the tree is built properly it should only * be a depth of 7 function calls for 100 entries in the tree. */ int rb_assert ( rtems_rbtree_node *root ) { int lh, rh; if ( root == NULL ) return 1; else { rtems_rbtree_node *ln = rtems_rbtree_left(root); rtems_rbtree_node *rn = rtems_rbtree_right(root); /* Consecutive red links */ if ( root->color == RBT_RED ) { if ((ln && ln->color == RBT_RED) || (rn && rn->color == RBT_RED)) { puts ( "Red violation" ); return -1; } } lh = rb_assert ( ln ); rh = rb_assert ( rn ); /* Invalid binary search tree */ if ( ( ln != NULL && test_compare_function(ln, root) > 0 ) || ( rn != NULL && test_compare_function(rn, root) < 0 ) ) { puts ( "Binary tree violation" ); return -1; } /* Black height mismatch */ if ( lh != -1 && rh != -1 && lh != rh ) { puts ( "Black violation" ); return -1; } /* Only count black links */ if ( lh != -1 && rh != -1 ) return ( root->color == RBT_RED ) ? lh : lh + 1; else return -1; } } rtems_task Init( rtems_task_argument ignored ) { rtems_rbtree_control rbtree1; rtems_rbtree_node *p; test_node node1, node2; test_node node_array[100]; test_node search_node; int id; int i; puts( "\n\n*** TEST OF RTEMS RBTREE API ***" ); puts( "Init - Initialize rbtree empty" ); rtems_rbtree_initialize_empty( &rbtree1, &test_compare_function, RTEMS_RBTREE_UNIQUE ); if ( !rtems_rbtree_is_unique( &rbtree1 ) ) puts( "INIT - FAILED IS UNIQUE CHECK" ); if ( rtems_rbtree_is_unique( NULL ) ) puts( "INIT - FAILED IS UNIQUE CHECK" ); /* verify that the rbtree insert work */ puts( "INIT - Verify rtems_rbtree_insert with two nodes" ); node1.id = 1; node1.key = 1; node2.id = 2; node2.key = 2; rtems_rbtree_insert( &rbtree1, &node1.Node ); rtems_rbtree_insert( &rbtree1, &node2.Node ); p = rtems_rbtree_insert( &rbtree1, NULL ); if (p != (void *)(-1)) puts( "INIT - FAILED NULL NODE INSERT" ); _RBTree_Rotate(NULL, RBT_LEFT); i = (node1.Node.parent == &node2.Node); _RBTree_Rotate( &node1.Node, !node1.Node.child[RBT_LEFT] ? RBT_RIGHT : RBT_LEFT ); if ( (node1.Node.parent == &node2.Node) != i ) puts( "INIT - FAILED FALSE ROTATION" ); if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); for ( p = rtems_rbtree_get_min(&rbtree1), id = 1 ; p ; p = rtems_rbtree_get_min(&rbtree1) , id++ ) { test_node *t = rtems_rbtree_container_of(p,test_node,Node); if ( id > 2 ) { puts( "INIT - TOO MANY NODES ON RBTREE" ); rtems_test_exit(0); } if ( t->id != id ) { puts( "INIT - ERROR ON RBTREE ID MISMATCH" ); rtems_test_exit(0); } if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } if (id < 2) { puts("INIT - NOT ENOUGH NODES ON RBTREE"); rtems_test_exit(0); } puts("INIT - Verify rtems_rbtree_insert with the same value twice"); node2.key = node1.key; rtems_rbtree_insert(&rbtree1, &node1.Node); p = rtems_rbtree_insert(&rbtree1, &node2.Node); if (p != &node1.Node) puts( "INIT - FAILED DUPLICATE INSERT" ); for ( p = rtems_rbtree_get_min(&rbtree1), id = 1 ; p ; p = rtems_rbtree_get_min(&rbtree1) , id++ ) { test_node *t = rtems_rbtree_container_of(p,test_node,Node); if ( id > 1 ) { puts( "INIT - TOO MANY NODES ON RBTREE" ); rtems_test_exit(0); } if ( t->id != id ) { puts( "INIT - ERROR ON RBTREE ID MISMATCH" ); rtems_test_exit(0); } if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } if (id < 1) { puts("INIT - NOT ENOUGH NODES ON RBTREE"); rtems_test_exit(0); } node2.key = 2; /* verify that the rbtree is empty */ puts( "INIT - Verify rtems_rbtree_is_empty" ); if(!rtems_rbtree_is_empty(&rbtree1)) { puts( "INIT - TREE NOT EMPTY" ); rtems_test_exit(0); } puts( "INIT - Verify rtems_XXX on an empty tree" ); if(rtems_rbtree_get_min(&rbtree1)) { puts("INIT - get_min on empty returned non-NULL"); rtems_test_exit(0); } if(rtems_rbtree_get_max(&rbtree1)) { puts("INIT - get_max on empty returned non-NULL"); rtems_test_exit(0); } if(rtems_rbtree_peek_min(&rbtree1)) { puts("INIT - peek_min on empty returned non-NULL"); rtems_test_exit(0); } if(rtems_rbtree_peek_max(&rbtree1)) { puts("INIT - peek_max on empty returned non-NULL"); rtems_test_exit(0); } /* verify that the rbtree insert works after a tree is emptied */ puts( "INIT - Verify rtems_rbtree_insert after empty tree" ); node1.id = 2; node1.key = 2; node2.id = 1; node2.key = 1; rtems_rbtree_insert( &rbtree1, &node1.Node ); rtems_rbtree_insert( &rbtree1, &node2.Node ); puts( "INIT - Verify rtems_rbtree_peek_max/min, rtems_rbtree_extract" ); test_node *t1 = rtems_rbtree_container_of(rtems_rbtree_peek_max(&rbtree1), test_node,Node); test_node *t2 = rtems_rbtree_container_of(rtems_rbtree_peek_min(&rbtree1), test_node,Node); if (t1->key - t2->key != 1) { puts( "INIT - Peek Min - Max failed" ); rtems_test_exit(0); } p = rtems_rbtree_peek_max(&rbtree1); rtems_rbtree_extract(&rbtree1, p); t1 = rtems_rbtree_container_of(p,test_node,Node); if (t1->key != 2) { puts( "INIT - rtems_rbtree_extract failed"); rtems_test_exit(0); } rtems_rbtree_insert(&rbtree1, p); for ( p = rtems_rbtree_get_min(&rbtree1), id = 1 ; p ; p = rtems_rbtree_get_min(&rbtree1) , id++ ) { test_node *t = rtems_rbtree_container_of(p,test_node,Node); if ( id > 2 ) { puts( "INIT - TOO MANY NODES ON RBTREE" ); rtems_test_exit(0); } if ( t->id != id ) { puts( "INIT - ERROR ON RBTREE ID MISMATCH" ); rtems_test_exit(0); } } puts( "INIT - Verify rtems_rbtree_insert with 100 nodes value [0,99]" ); for (i = 0; i < 100; i++) { node_array[i].id = i; node_array[i].key = i; rtems_rbtree_insert( &rbtree1, &node_array[i].Node ); if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } puts( "INIT - Removing 100 nodes" ); for ( p = rtems_rbtree_get_min(&rbtree1), id = 0 ; p ; p = rtems_rbtree_get_min(&rbtree1) , id++ ) { test_node *t = rtems_rbtree_container_of(p,test_node,Node); if ( id > 99 ) { puts( "INIT - TOO MANY NODES ON RBTREE" ); rtems_test_exit(0); } if ( t->id != id ) { puts( "INIT - ERROR ON RBTREE ID MISMATCH" ); rtems_test_exit(0); } if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } if(!rtems_rbtree_is_empty(&rbtree1)) { puts( "INIT - TREE NOT EMPTY" ); rtems_test_exit(0); } puts( "INIT - Verify rtems_rbtree_insert with 100 nodes value [99,0]" ); for (i = 0; i < 100; i++) { node_array[i].id = 99-i; node_array[i].key = 99-i; rtems_rbtree_insert( &rbtree1, &node_array[i].Node ); if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } puts( "INIT - Removing 100 nodes" ); for ( p = rtems_rbtree_get_min(&rbtree1), id = 0 ; p ; p = rtems_rbtree_get_min(&rbtree1) , id++ ) { test_node *t = rtems_rbtree_container_of(p,test_node,Node); if ( id > 99 ) { puts( "INIT - TOO MANY NODES ON RBTREE" ); rtems_test_exit(0); } if ( t->id != id ) { puts( "INIT - ERROR ON RBTREE ID MISMATCH" ); rtems_test_exit(0); } if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } if(!rtems_rbtree_is_empty(&rbtree1)) { puts( "INIT - TREE NOT EMPTY" ); rtems_test_exit(0); } /* testing rbtree_extract by adding 100 nodes then removing the 20 with * keys specified by the numbers array, then removing the rest */ puts( "INIT - Verify rtems_rbtree_extract with 100 nodes value [0,99]" ); for (i = 0; i < 100; i++) { node_array[i].id = i; node_array[i].key = i; rtems_rbtree_insert( &rbtree1, &node_array[i].Node ); if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } puts( "INIT - Extracting 20 random nodes" ); for (i = 0; i < 20; i++) { id = numbers[i]; rtems_rbtree_extract( &rbtree1, &node_array[id].Node ); if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } puts( "INIT - Removing 80 nodes" ); for ( p = rtems_rbtree_get_min(&rbtree1), id = 0, i = 0 ; p ; p = rtems_rbtree_get_min(&rbtree1) , id++ ) { test_node *t = rtems_rbtree_container_of(p, test_node, Node); while ( id == numbers_sorted[i] ) { /* skip if expected minimum (id) is in the set of extracted numbers */ id++; i++; } if ( id > 99 ) { puts( "INIT - TOO MANY NODES ON RBTREE" ); rtems_test_exit(0); } if ( t->id != id ) { puts( "INIT - ERROR ON RBTREE ID MISMATCH" ); rtems_test_exit(0); } if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } if(!rtems_rbtree_is_empty(&rbtree1)) { puts( "INIT - TREE NOT EMPTY" ); rtems_test_exit(0); } /* Additional rtems_rbtree_extract test which removes a node * with two children while target node has a left child only. */ for ( i = 0; i < 7; i++ ) { node_array[i].id = i; node_array[i].key = i; } rtems_rbtree_insert( &rbtree1, &node_array[3].Node ); rtems_rbtree_insert( &rbtree1, &node_array[1].Node ); rtems_rbtree_insert( &rbtree1, &node_array[5].Node ); rtems_rbtree_insert( &rbtree1, &node_array[0].Node ); rtems_rbtree_insert( &rbtree1, &node_array[2].Node ); rtems_rbtree_insert( &rbtree1, &node_array[4].Node ); rtems_rbtree_insert( &rbtree1, &node_array[6].Node ); rtems_rbtree_extract( &rbtree1, &node_array[2].Node ); /* node_array[1] has now only a left child. */ if ( !node_array[1].Node.child[RBT_LEFT] || node_array[1].Node.child[RBT_RIGHT] ) puts( "INIT - LEFT CHILD ONLY NOT FOUND" ); rtems_rbtree_extract( &rbtree1, &node_array[3].Node ); while( (p = rtems_rbtree_get_max(&rbtree1)) ); puts( "INIT - Verify rtems_rbtree_get_max with 100 nodes value [99,0]" ); for (i = 0; i < 100; i++) { node_array[i].id = 99-i; node_array[i].key = 99-i; rtems_rbtree_insert( &rbtree1, &node_array[i].Node ); if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } puts( "INIT - Removing 100 nodes" ); for ( p = rtems_rbtree_get_max(&rbtree1), id = 0 ; p ; p = rtems_rbtree_get_max(&rbtree1) , id++ ) { test_node *t = rtems_rbtree_container_of(p,test_node,Node); if ( id > 99 ) { puts( "INIT - TOO MANY NODES ON RBTREE" ); rtems_test_exit(0); } if ( t->id != 99-id ) { puts( "INIT - ERROR ON RBTREE ID MISMATCH" ); rtems_test_exit(0); } if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } if(!rtems_rbtree_is_empty(&rbtree1)) { puts( "INIT - TREE NOT EMPTY" ); rtems_test_exit(0); } puts( "INIT - Verify rtems_rbtree_get_max with 100 nodes value [0,99]" ); for (i = 0; i < 100; i++) { node_array[i].id = i; node_array[i].key = i; rtems_rbtree_insert( &rbtree1, &node_array[i].Node ); if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } puts( "INIT - Verify rtems_rbtree_find" ); search_node.key = 30; p = rtems_rbtree_find(&rbtree1, &search_node.Node); if(rtems_rbtree_container_of(p,test_node,Node)->id != 30) { puts ("INIT - ERROR ON RBTREE ID MISMATCH"); rtems_test_exit(0); } puts( "INIT - Verify rtems_rbtree_predecessor/successor"); p = rtems_rbtree_predecessor(p); if(p && rtems_rbtree_container_of(p,test_node,Node)->id > 30) { puts ("INIT - ERROR ON RBTREE ID MISMATCH"); rtems_test_exit(0); } p = rtems_rbtree_find(&rbtree1, &search_node.Node); p = rtems_rbtree_successor(p); if(p && rtems_rbtree_container_of(p,test_node,Node)->id < 30) { puts ("INIT - ERROR ON RBTREE ID MISMATCH"); rtems_test_exit(0); } p = rtems_rbtree_find(&rbtree1, &search_node.Node); puts( "INIT - Verify rtems_rbtree_find_header" ); if (rtems_rbtree_find_header(p) != &rbtree1) { puts ("INIT - ERROR ON RBTREE HEADER MISMATCH"); rtems_test_exit(0); } if ( _RBTree_Sibling( NULL ) != NULL ) puts ( "INIT - ERROR ON RBTREE NULL SIBLING MISMATCH" ); if ( _RBTree_Sibling( rbtree1.root ) != NULL ) puts ( "INIT - ERROR ON RBTREE NULL SIBLING MISMATCH" ); if ( _RBTree_Grandparent( NULL ) != NULL ) puts ( "INIT - ERROR ON RBTREE NULL GRANDPARENT MISMATCH" ); if ( _RBTree_Is_red( NULL ) != 0 ) puts ( "INIT - ERROR ON RBTREE NULL IS RED MISMATCH" ); if ( _RBTree_Is_red( rbtree1.root ) != 0 ) puts ( "INIT - ERROR ON RBTREE NULL IS RED MISMATCH" ); puts( "INIT - Removing 100 nodes" ); for ( p = rtems_rbtree_get_max(&rbtree1), id = 99 ; p ; p = rtems_rbtree_get_max(&rbtree1) , id-- ) { test_node *t = rtems_rbtree_container_of(p,test_node,Node); if ( id < 0 ) { puts( "INIT - TOO MANY NODES ON RBTREE" ); rtems_test_exit(0); } if ( t->id != id ) { puts( "INIT - ERROR ON RBTREE ID MISMATCH" ); rtems_test_exit(0); } if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } if(!rtems_rbtree_is_empty(&rbtree1)) { puts( "INIT - TREE NOT EMPTY" ); rtems_test_exit(0); } if (rtems_rbtree_find_header(&node_array[0].Node) != NULL) { puts ("INIT - ERROR ON RBTREE HEADER MISMATCH"); rtems_test_exit(0); } if (rtems_rbtree_find_header(NULL) != NULL) { puts ("INIT - ERROR ON RBTREE HEADER MISMATCH"); rtems_test_exit(0); } puts("INIT - Insert 20 random numbers"); for (i = 0; i < 20; i++) { node_array[i].id = numbers[i]; node_array[i].key = numbers[i]; rtems_rbtree_insert( &rbtree1, &node_array[i].Node ); if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } puts( "INIT - Removing 20 nodes" ); for ( p = rtems_rbtree_get_min(&rbtree1), id = 0 ; p ; p = rtems_rbtree_get_min(&rbtree1) , id++ ) { test_node *t = rtems_rbtree_container_of(p,test_node,Node); if ( id > 19 ) { puts( "INIT - TOO MANY NODES ON RBTREE" ); rtems_test_exit(0); } if ( t->id != numbers_sorted[id] ) { puts( "INIT - ERROR ON RBTREE ID MISMATCH" ); rtems_test_exit(0); } if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } if(!rtems_rbtree_is_empty(&rbtree1)) { puts( "INIT - TREE NOT EMPTY" ); rtems_test_exit(0); } puts( "INIT - Verify rtems_rbtree_initialize with 100 nodes value [0,99]" ); for (i = 0; i < 100; i++) { node_array[i].id = i; node_array[i].key = i; } rtems_rbtree_initialize( &rbtree1, &test_compare_function, &node_array[0].Node, 100, sizeof(test_node), RTEMS_RBTREE_UNIQUE ); puts( "INIT - Removing 100 nodes" ); for ( p = rtems_rbtree_get_min(&rbtree1), id = 0 ; p ; p = rtems_rbtree_get_min(&rbtree1) , id++ ) { test_node *t = rtems_rbtree_container_of(p,test_node,Node); if ( id > 99 ) { puts( "INIT - TOO MANY NODES ON RBTREE" ); rtems_test_exit(0); } if ( t->id != id ) { puts( "INIT - ERROR ON RBTREE ID MISMATCH" ); rtems_test_exit(0); } if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } if(!rtems_rbtree_is_empty(&rbtree1)) { puts( "INIT - TREE NOT EMPTY" ); rtems_test_exit(0); } /* Initialize the tree for duplicate keys */ puts( "Init - Initialize duplicate rbtree empty" ); rtems_rbtree_initialize_empty( &rbtree1, &test_compare_function, RTEMS_RBTREE_DUPLICATE ); if ( rtems_rbtree_is_unique( &rbtree1 ) ) puts( "INIT - FAILED IS UNIQUE CHECK" ); if ( rtems_rbtree_is_unique( NULL ) ) puts( "INIT - FAILED IS UNIQUE CHECK" ); puts( "INIT - Verify rtems_rbtree_insert with 100 nodes value [0,99]" ); for (i = 0; i < 100; i++) { node_array[i].id = i; node_array[i].key = i%5; rtems_rbtree_insert( &rbtree1, &node_array[i].Node ); if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } puts( "INIT - Verify rtems_rbtree_find in a duplicate tree" ); search_node.key = 2; p = rtems_rbtree_find(&rbtree1, &search_node.Node); if(rtems_rbtree_container_of(p,test_node,Node)->id != 2) { puts ("INIT - ERROR ON RBTREE ID MISMATCH"); rtems_test_exit(0); } puts( "INIT - Removing 100 nodes" ); for ( p = rtems_rbtree_get_min(&rbtree1), id = 0 ; p ; p = rtems_rbtree_get_min(&rbtree1) , id++ ) { test_node *t = rtems_rbtree_container_of(p,test_node,Node); if ( id > 99 ) { puts( "INIT - TOO MANY NODES ON RBTREE" ); rtems_test_exit(0); } if ( t->id != ( ((id*5)%100) + (id/20) ) ) { puts( "INIT - ERROR ON RBTREE ID MISMATCH" ); rtems_test_exit(0); } if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } if(!rtems_rbtree_is_empty(&rbtree1)) { puts( "INIT - TREE NOT EMPTY" ); rtems_test_exit(0); } puts( "INIT - Verify rtems_rbtree_insert with 100 nodes value [99,0]" ); for (i = 0; i < 100; i++) { node_array[i].id = 99-i; node_array[i].key = (99-i)%5; rtems_rbtree_insert( &rbtree1, &node_array[i].Node ); if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } puts( "INIT - Verify rtems_rbtree_find in a duplicate tree" ); search_node.key = 2; p = rtems_rbtree_find(&rbtree1, &search_node.Node); if(rtems_rbtree_container_of(p,test_node,Node)->id != 97) { puts ("INIT - ERROR ON RBTREE ID MISMATCH"); rtems_test_exit(0); } puts( "INIT - Removing 100 nodes" ); for ( p = rtems_rbtree_get_min(&rbtree1), id = 0 ; p ; p = rtems_rbtree_get_min(&rbtree1) , id++ ) { test_node *t = rtems_rbtree_container_of(p,test_node,Node); if ( id > 99 ) { puts( "INIT - TOO MANY NODES ON RBTREE" ); rtems_test_exit(0); } if ( t->id != ( (((99-id)*5)%100) + (id/20) ) ) { puts( "INIT - ERROR ON RBTREE ID MISMATCH" ); rtems_test_exit(0); } if (!rb_assert(rbtree1.root) ) puts( "INIT - FAILED TREE CHECK" ); } if(!rtems_rbtree_is_empty(&rbtree1)) { puts( "INIT - TREE NOT EMPTY" ); rtems_test_exit(0); } puts( "*** END OF RTEMS RBTREE API TEST ***" ); rtems_test_exit(0); } /* configuration information */ #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER #define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER #define CONFIGURE_RTEMS_INIT_TASKS_TABLE #define CONFIGURE_MAXIMUM_TASKS 1 #define CONFIGURE_INIT #include /* global variables */