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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curlcheck.h"
#include "splay.h"
#include "warnless.h"
static CURLcode unit_setup(void)
{
return CURLE_OK;
}
static void unit_stop(void)
{
}
static void splayprint(struct Curl_tree *t, int d, char output)
{
struct Curl_tree *node;
int i;
int count;
if(t == NULL)
return;
splayprint(t->larger, d + 1, output);
for(i = 0; i<d; i++)
if(output)
printf(" ");
if(output) {
printf("%ld.%ld[%d]", (long)t->key.tv_sec,
(long)t->key.tv_usec, i);
}
for(count = 0, node = t->samen; node != t; node = node->samen, count++)
;
if(output) {
if(count)
printf(" [%d more]\n", count);
else
printf("\n");
}
splayprint(t->smaller, d + 1, output);
}
UNITTEST_START
/* number of nodes to add to the splay tree */
#define NUM_NODES 50
struct Curl_tree *root, *removed;
struct Curl_tree nodes[NUM_NODES*3];
size_t storage[NUM_NODES*3];
int rc;
int i, j;
struct curltime tv_now = {0, 0};
root = NULL; /* the empty tree */
/* add nodes */
for(i = 0; i < NUM_NODES; i++) {
struct curltime key;
key.tv_sec = 0;
key.tv_usec = (541*i)%1023;
storage[i] = key.tv_usec;
nodes[i].payload = &storage[i];
root = Curl_splayinsert(key, root, &nodes[i]);
}
puts("Result:");
splayprint(root, 0, 1);
for(i = 0; i < NUM_NODES; i++) {
int rem = (i + 7)%NUM_NODES;
printf("Tree look:\n");
splayprint(root, 0, 1);
printf("remove pointer %d, payload %zu\n", rem,
*(size_t *)nodes[rem].payload);
rc = Curl_splayremovebyaddr(root, &nodes[rem], &root);
if(rc) {
/* failed! */
printf("remove %d failed!\n", rem);
fail("remove");
}
}
fail_unless(root == NULL, "tree not empty after removing all nodes");
/* rebuild tree */
for(i = 0; i < NUM_NODES; i++) {
struct curltime key;
key.tv_sec = 0;
key.tv_usec = (541*i)%1023;
/* add some nodes with the same key */
for(j = 0; j <= i % 3; j++) {
storage[i * 3 + j] = key.tv_usec*10 + j;
nodes[i * 3 + j].payload = &storage[i * 3 + j];
root = Curl_splayinsert(key, root, &nodes[i * 3 + j]);
}
}
removed = NULL;
for(i = 0; i <= 1100; i += 100) {
printf("Removing nodes not larger than %d\n", i);
tv_now.tv_usec = i;
root = Curl_splaygetbest(tv_now, root, &removed);
while(removed != NULL) {
printf("removed payload %zu[%zu]\n",
(*(size_t *)removed->payload) / 10,
(*(size_t *)removed->payload) % 10);
root = Curl_splaygetbest(tv_now, root, &removed);
}
}
fail_unless(root == NULL, "tree not empty when it should be");
UNITTEST_STOP
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