mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 00:48:52 +09:00
![Simon Glass](/assets/img/avatar_default.png)
At present this function returns 1 on success and 0 on failure. But in the latter case it provides no indication of what went wrong. If an attempt is made to delete a non-existent variable, the caller may want to ignore this error. This happens when setting a non-existent variable to "", for example. Update the function to return 0 on success and a useful error code on failure. Add a function comment too. Make sure that env_set() does not return an error if it is deleting a variable that doesn't exist. We could update env_set() to return useful error numbers also, but that is beyond the scope of this change. Signed-off-by: Simon Glass <sjg@chromium.org> wip
127 lines
2.6 KiB
C
127 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* (C) Copyright 2019
|
|
* Roman Kapl, SYSGO, rka@sysgo.com
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <log.h>
|
|
#include <search.h>
|
|
#include <stdio.h>
|
|
#include <test/env.h>
|
|
#include <test/ut.h>
|
|
|
|
#define SIZE 32
|
|
#define ITERATIONS 10000
|
|
|
|
static int htab_fill(struct unit_test_state *uts,
|
|
struct hsearch_data *htab, size_t size)
|
|
{
|
|
size_t i;
|
|
struct env_entry item;
|
|
struct env_entry *ritem;
|
|
char key[20];
|
|
|
|
for (i = 0; i < size; i++) {
|
|
sprintf(key, "%d", (int)i);
|
|
item.callback = NULL;
|
|
item.data = key;
|
|
item.flags = 0;
|
|
item.key = key;
|
|
ut_asserteq(1, hsearch_r(item, ENV_ENTER, &ritem, htab, 0));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int htab_check_fill(struct unit_test_state *uts,
|
|
struct hsearch_data *htab, size_t size)
|
|
{
|
|
size_t i;
|
|
struct env_entry item;
|
|
struct env_entry *ritem;
|
|
char key[20];
|
|
|
|
for (i = 0; i < size; i++) {
|
|
sprintf(key, "%d", (int)i);
|
|
item.callback = NULL;
|
|
item.flags = 0;
|
|
item.data = key;
|
|
item.key = key;
|
|
hsearch_r(item, ENV_FIND, &ritem, htab, 0);
|
|
ut_assert(ritem);
|
|
ut_asserteq_str(key, ritem->key);
|
|
ut_asserteq_str(key, ritem->data);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int htab_create_delete(struct unit_test_state *uts,
|
|
struct hsearch_data *htab, size_t iterations)
|
|
{
|
|
size_t i;
|
|
struct env_entry item;
|
|
struct env_entry *ritem;
|
|
char key[20];
|
|
|
|
for (i = 0; i < iterations; i++) {
|
|
sprintf(key, "cd-%d", (int)i);
|
|
item.callback = NULL;
|
|
item.flags = 0;
|
|
item.data = key;
|
|
item.key = key;
|
|
hsearch_r(item, ENV_ENTER, &ritem, htab, 0);
|
|
ritem = NULL;
|
|
|
|
hsearch_r(item, ENV_FIND, &ritem, htab, 0);
|
|
ut_assert(ritem);
|
|
ut_asserteq_str(key, ritem->key);
|
|
ut_asserteq_str(key, ritem->data);
|
|
|
|
ut_asserteq(0, hdelete_r(key, htab, 0));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Completely fill up the hash table */
|
|
static int env_test_htab_fill(struct unit_test_state *uts)
|
|
{
|
|
struct hsearch_data htab;
|
|
|
|
memset(&htab, 0, sizeof(htab));
|
|
ut_asserteq(1, hcreate_r(SIZE, &htab));
|
|
|
|
ut_assertok(htab_fill(uts, &htab, SIZE));
|
|
ut_assertok(htab_check_fill(uts, &htab, SIZE));
|
|
ut_asserteq(SIZE, htab.filled);
|
|
|
|
hdestroy_r(&htab);
|
|
return 0;
|
|
}
|
|
|
|
ENV_TEST(env_test_htab_fill, 0);
|
|
|
|
/* Fill the hashtable up halfway an repeateadly delete/create elements
|
|
* and check for corruption
|
|
*/
|
|
static int env_test_htab_deletes(struct unit_test_state *uts)
|
|
{
|
|
struct hsearch_data htab;
|
|
|
|
memset(&htab, 0, sizeof(htab));
|
|
ut_asserteq(1, hcreate_r(SIZE, &htab));
|
|
|
|
ut_assertok(htab_fill(uts, &htab, SIZE / 2));
|
|
ut_assertok(htab_create_delete(uts, &htab, ITERATIONS));
|
|
ut_assertok(htab_check_fill(uts, &htab, SIZE / 2));
|
|
ut_asserteq(SIZE / 2, htab.filled);
|
|
|
|
hdestroy_r(&htab);
|
|
return 0;
|
|
}
|
|
|
|
ENV_TEST(env_test_htab_deletes, 0);
|