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lib/ippool: Add back-pointer from pool member to pool 

This allows us to remove pool members without having to keep
a pointer to the pool around.

Change-Id: I9042eb85989c5451d7894678eca110dd19e78002
This commit is contained in:
Harald Welte 2017-08-12 12:46:39 +02:00
parent 33520b43ec
commit b513b951bd
2 changed files with 3 additions and 0 deletions
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2
lib/ippool.c
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@ -295,6 +295,7 @@ int ippool_new(struct ippool_t **this, const char *dyn, const char *stat,
in46a_inc(&addr);
(*this)->member[i].inuse = 0;
(*this)->member[i].pool = *this;
/* Insert into list of unused */
(*this)->member[i].prev = (*this)->lastdyn;
@ -315,6 +316,7 @@ int ippool_new(struct ippool_t **this, const char *dyn, const char *stat,
struct in46_addr *i6al = &(*this)->member[i].addr;
memset(i6al, 0, sizeof(*i6al));
(*this)->member[i].inuse = 0;
(*this)->member[i].pool = *this;
/* Insert into list of unused */
(*this)->member[i].prev = (*this)->laststat;

1
lib/ippool.h
View File

@ -56,6 +56,7 @@ struct ippool_t {
struct ippoolm_t {
struct in46_addr addr; /* IP address of this member */
struct ippool_t *pool; /* Pool to which we belong */
int inuse; /* 0=available; 1= dynamic; 2 = static */
struct ippoolm_t *nexthash; /* Linked list part of hash table */
struct ippoolm_t *prev, *next; /* Linked list of free dynamic or static */