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utils_disk: add name_prev pointer to struct parameter_list

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Also added handling of name_prev in np_add_parameter and np_delete_parameter.
This make calling the np_delete_parameter function easier, because it requires
the previous element as second argument.
This commit is contained in:
Kristian Schuster 2023-02-19 13:44:04 +01:00
parent bacacd2cb3
commit 9898a8ad7d
No known key found for this signature in database
GPG key ID: FF88637CDDF5D2A6
2 changed files with 18 additions and 2 deletions
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19
lib/utils_disk.c
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@ -46,9 +46,10 @@ np_add_parameter(struct parameter_list **list, const char *name)
struct parameter_list *current = *list;
struct parameter_list *new_path;
new_path = (struct parameter_list *) malloc (sizeof *new_path);
new_path->name = (char *) name;
new_path->name = (char *) malloc(strlen(name) + 1);
new_path->best_match = NULL;
new_path->name_next = NULL;
new_path->name_prev = NULL;
new_path->freespace_bytes = NULL;
new_path->freespace_units = NULL;
new_path->freespace_percent = NULL;
@ -74,13 +75,17 @@ np_add_parameter(struct parameter_list **list, const char *name)
new_path->dused_inodes_percent = 0;
new_path->dfree_inodes_percent = 0;
strcpy(new_path->name, name);
if (current == NULL) {
*list = new_path;
new_path->name_prev = NULL;
} else {
while (current->name_next) {
current = current->name_next;
}
current->name_next = new_path;
new_path->name_prev = current;
}
return new_path;
}
@ -89,6 +94,9 @@ np_add_parameter(struct parameter_list **list, const char *name)
struct parameter_list *
np_del_parameter(struct parameter_list *item, struct parameter_list *prev)
{
if (item == NULL) {
return NULL;
}
struct parameter_list *next;
if (item->name_next)
@ -96,10 +104,17 @@ np_del_parameter(struct parameter_list *item, struct parameter_list *prev)
else
next = NULL;
free(item);
if (next)
next->name_prev = prev;
if (prev)
prev->name_next = next;
if (item->name) {
free(item->name);
}
free(item);
return next;
}

1
lib/utils_disk.h
View file

@ -24,6 +24,7 @@ struct parameter_list
char *group;
struct mount_entry *best_match;
struct parameter_list *name_next;
struct parameter_list *name_prev;
uintmax_t total, available, available_to_root, used,
inodes_free, inodes_free_to_root, inodes_used, inodes_total;
double dfree_pct, dused_pct;