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env: check and apply changes on delete/destroy

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Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com>
Reviewed-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Gerlando Falauto
2012-08-24 00:11:40 +00:00
committed by Tom Rini
parent c5983592e9
commit 152874b65b
3 changed files with 14 additions and 9 deletions
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2
common/cmd_nvedit.c
View File

@@ -359,7 +359,7 @@ int _do_env_set(int flag, int argc, char * const argv[])
/* Delete only ? */
if (argc < 3 || argv[2] == NULL) {
int rc = hdelete_r(name, &env_htab);
int rc = hdelete_r(name, &env_htab, 0);
return !rc;
}

5
include/search.h
View File

@@ -73,7 +73,7 @@ struct hsearch_data {
extern int hcreate_r(size_t __nel, struct hsearch_data *__htab);
/* Destroy current internal hashing table. */
extern void hdestroy_r(struct hsearch_data *__htab);
extern void hdestroy_r(struct hsearch_data *__htab, int do_apply);
/*
* Search for entry matching ITEM.key in internal hash table. If
@@ -98,7 +98,8 @@ extern int hstrstr_r(const char *__match, int __last_idx, ENTRY ** __retval,
struct hsearch_data *__htab);
/* Search and delete entry matching ITEM.key in internal hash table. */
extern int hdelete_r(const char *__key, struct hsearch_data *__htab);
extern int hdelete_r(const char *__key, struct hsearch_data *__htab,
int do_apply);
extern ssize_t hexport_r(struct hsearch_data *__htab,
const char __sep, char **__resp, size_t __size,

16
lib/hashtable.c
View File

@@ -142,7 +142,7 @@ int hcreate_r(size_t nel, struct hsearch_data *htab)
* be freed and the local static variable can be marked as not used.
*/
void hdestroy_r(struct hsearch_data *htab)
void hdestroy_r(struct hsearch_data *htab, int do_apply)
{
int i;
@@ -156,7 +156,10 @@ void hdestroy_r(struct hsearch_data *htab)
for (i = 1; i <= htab->size; ++i) {
if (htab->table[i].used > 0) {
ENTRY *ep = &htab->table[i].entry;
if (do_apply && htab->apply != NULL) {
/* deletion is always forced */
htab->apply(ep->key, ep->data, NULL, H_FORCE);
}
free((void *)ep->key);
free(ep->data);
}
@@ -401,7 +404,7 @@ int hsearch_r(ENTRY item, ACTION action, ENTRY ** retval,
* do that.
*/
int hdelete_r(const char *key, struct hsearch_data *htab)
int hdelete_r(const char *key, struct hsearch_data *htab, int do_apply)
{
ENTRY e, *ep;
int idx;
@@ -417,7 +420,8 @@ int hdelete_r(const char *key, struct hsearch_data *htab)
/* free used ENTRY */
debug("hdelete: DELETING key \"%s\"\n", key);
if (do_apply && htab->apply != NULL)
htab->apply(ep->key, ep->data, NULL, H_FORCE);
free((void *)ep->key);
free(ep->data);
htab->table[idx].used = -1;
@@ -682,7 +686,7 @@ int himport_r(struct hsearch_data *htab,
debug("Destroy Hash Table: %p table = %p\n", htab,
htab->table);
if (htab->table)
hdestroy_r(htab);
hdestroy_r(htab, do_apply);
}
/*
@@ -748,7 +752,7 @@ int himport_r(struct hsearch_data *htab,
if (!is_var_in_set(name, nvars, vars))
continue;
if (hdelete_r(name, htab) == 0)
if (hdelete_r(name, htab, do_apply) == 0)
debug("DELETE ERROR ##############################\n");
continue;