int main()
{
int arr[] = {3, 6, 9, 2, 11, 1, 4}, i;
skiplist list;
skiplist_init(&list);
printf("Insert:--------------------\n");
for (i = 0; i < sizeof(arr)/sizeof(arr[0]); i++) {
skiplist_insert(&list, arr[i], arr[i]);
}
skiplist_dump(&list);
printf("Search:--------------------\n");
int keys[] = {3, 4, 7, 10, 111};
for (i = 0; i < sizeof(keys)/sizeof(keys[0]); i++) {
snode *x = skiplist_search(&list, keys[i]);
if (x) {
printf("key = %d, value = %d\n", keys[i], x->value);
} else {
printf("key = %d, not fuound\n", keys[i]);
}
}
printf("Search:--------------------\n");
skiplist_delete(&list, 3);
skiplist_delete(&list, 9);
skiplist_dump(&list);
return 0;
}
static void test_delete()
{
int i;
int64_t start_time;
int64_t end_time;
void *value;
start_time = get_current_time_ms();
for (i=0; i<COUNT; i++) {
assert(skiplist_delete(&sl, numbers + i) == 0);
}
assert(instance_count == 0);
end_time = get_current_time_ms();
printf("delete time used: %"PRId64" ms\n", end_time - start_time);
start_time = get_current_time_ms();
for (i=0; i<COUNT; i++) {
value = skiplist_find(&sl, numbers + i);
assert(value == NULL);
}
end_time = get_current_time_ms();
printf("find after delete time used: %"PRId64" ms\n", end_time - start_time);
i = 0;
skiplist_iterator(&sl, &iterator);
while ((value=skiplist_next(&iterator)) != NULL) {
i++;
}
assert(i==0);
}
/*从跳表中删除具有最小键值的表项*/
void *skiplist_delete_min(skiplist_t *l){
skiplist_node_t *cur=l->head->forward[0];
if(cur)
return skiplist_delete(l,cur->item);
else
return NULL;
}
/* skiplist_delete_free SKIPLIST FREEFUNC
* Iterate over every element of SKIPLIST, calling FREEFUNC with the value of
* each, and then delete SKIPLIST itself. If FREEFUNC is NULL, use free(3). */
void skiplist_delete_free(skiplist S, void (*freefunc)(void*)) {
skiplist_iterator itr;
if (!freefunc) freefunc = xfree;
for (itr = skiplist_itr_first(S); itr; itr = skiplist_itr_next(S, itr))
freefunc(skiplist_itr_value(S, itr));
skiplist_delete(S);
}
int main(int argc, char *argv[]) {
srand(clock());
SkipList_t *ptrSl = skiplist_alloc(10,1);
int64_t i;
for (i = 1; i <= 10; i++) {
skiplist_insert(ptrSl, i, (void*)(i*i));
SlKey_t slKey;
int64_t cValue;
if (skiplist_index(ptrSl, (i+1)/2-1, &slKey, (void**)(&cValue))) {
assert(slKey == (i+1)/2);
} else {
assert(0);
}
}
for (i = 0; i < 10; i++) {
SlKey_t slKey;
int64_t cValue;
if (skiplist_index(ptrSl, i, &slKey, (void**)(&cValue))) {
assert(slKey == i+1);
} else {
assert(0);
}
}
int32_t ixRm = 5;
assert(skiplist_delete(ptrSl, ixRm));
for (i = 1; i <= 10; i++) {
int64_t cValue = (int64_t)skiplist_find(ptrSl, i);
if (i != ixRm) {
assert(cValue == i*i);
} else {
assert(cValue == 0);
}
}
for (i = 1; i <= 10; i+=2) {
int32_t fSuccess = skiplist_delete(ptrSl,i);
if (i != ixRm) {
assert(fSuccess);
} else {
assert(!fSuccess);
}
}
skiplist_free(ptrSl);
return 1;
}
int
main(void)
{
int i;
int *key = malloc(N * sizeof(int));
if (key == NULL) {
exit(-1);
}
struct skiplist *list = skiplist_new();
if (list == NULL) {
exit(-1);
}
printf("Test start!\n");
printf("Add %d nodes...\n", N);
/* Insert test */
srandom(time(NULL));
for (i = 0; i < N; i++) {
int value = key[i] = (int)random();
skiplist_add(list, key[i], value);
}
#ifdef SKIPLIST_DEBUG
skiplist_dump(list);
#endif
/* Search test */
printf("Now search each node...\n");
for (i = 0; i < N; i++) {
int value = skiplist_search(list, key[i]);
if (value != -1) {
#ifdef SKIPLIST_DEBUG
printf("key:0x%08x value:0x%08x\n", key[i], value);
#endif
} else {
printf("Not found:0x%08x\n", key[i]);
}
}
/* Delete test */
printf("Now remove all nodes...\n");
for (i = 0; i < N; i++) {
skiplist_remove(list, key[i]);
}
#ifdef SKIPLIST_DEBUG
skiplist_dump(list);
#endif
printf("End of Test.\n");
skiplist_delete(list);
return 0;
}
int main(int argc, char **argv)
{
skiplist *list = skiplist_new(compare_word);
assert(list != NULL);
FILE *f = fopen("../_test/wordlist.txt", "r");
assert(f != NULL);
char *key;
int i = 0;
long long start, stop;
start = get_ustime_sec();
while (!feof(f)) {
i++;
key = (char *)malloc(sizeof(char) * 30);
assert(key != NULL);
fscanf(f, "%s\n", key);
skiplist_insert(list, key, &value);
}
stop = get_ustime_sec();
fclose(f);
printf("put %d word in skiplist cost time %lldμs\n", i, stop-start);
/* 查询 */
char test[30] = "comically";
int *t = skiplist_search(list, test);
if (t) {
printf("%s in wordlist and value = %d\n", test, *t);
} else {
printf("%s not in wordlist\n", test);
}
skiplist_delete(list, test);
t = skiplist_search(list, test);
if (t) {
printf("%s in wordlist\n", test);
} else {
printf("%s not in wordlist\n", test);
}
/**
* 在删除 Hashmap 前，需要自己管理 Key, Value 指向的内存
* 这里并没有释放 Key 内存
*/
skiplist_free(list);
return 0;
}
int
main(void)
{
int i;
struct timeval start, end;
int *key = (int *)malloc(N * sizeof(int));
if (key == NULL) {
exit(-1);
}
struct skiplist *list = skiplist_new();
if (list == NULL) {
exit(-1);
}
printf("Test start!\n");
printf("Add %d nodes...\n", N);
/* Insert test */
srandom(time(NULL));
gettimeofday(&start, NULL);
for (i = 0; i < N; i++) {
int value = key[i] = (int)random();
skiplist_insert(list, key[i], value);
}
gettimeofday(&end, NULL);
printf("time span: %ldms\n", (end.tv_sec - start.tv_sec)*1000 + (end.tv_usec - start.tv_usec)/1000);
#ifdef SKIPLIST_DEBUG
skiplist_dump(list);
#endif
/* Search test 1 */
printf("Now search each node by key...\n");
gettimeofday(&start, NULL);
for (i = 0; i < N; i++) {
struct skipnode *node = skiplist_search_by_key(list, key[i]);
if (node != NULL) {
#ifdef SKIPLIST_DEBUG
printf("key:0x%08x value:0x%08x\n", node->key, node->value);
#endif
} else {
printf("Not found:0x%08x\n", key[i]);
}
#ifdef SKIPLIST_DEBUG
printf("key rank:%d\n", skiplist_key_rank(list, key[i]));
#else
//skiplist_key_rank(list, key[i]);
#endif
}
gettimeofday(&end, NULL);
printf("time span: %ldms\n", (end.tv_sec - start.tv_sec)*1000 + (end.tv_usec - start.tv_usec)/1000);
/* Search test 2 */
printf("Now search each node by rank...\n");
gettimeofday(&start, NULL);
for (i = 0; i < N; i++) {
struct skipnode *node = skiplist_search_by_rank(list, i + 1);
if (node != NULL) {
#ifdef SKIPLIST_DEBUG
printf("rank:%d value:0x%08x\n", i + 1, node->value);
#endif
} else {
printf("Not found:%d\n", i + 1);
}
}
gettimeofday(&end, NULL);
printf("time span: %ldms\n", (end.tv_sec - start.tv_sec)*1000 + (end.tv_usec - start.tv_usec)/1000);
/* Delete test */
printf("Now remove all nodes...\n");
gettimeofday(&start, NULL);
for (i = 0; i < N; i++) {
skiplist_remove(list, key[i]);
}
gettimeofday(&end, NULL);
printf("time span: %ldms\n", (end.tv_sec - start.tv_sec)*1000 + (end.tv_usec - start.tv_usec)/1000);
#ifdef SKIPLIST_DEBUG
skiplist_dump(list);
#endif
printf("End of Test.\n");
skiplist_delete(list);
return 0;
}