ldp/ldp_hop.c

   1
   2 /*
   3  *  Copyright (C) James R. Leu 2001
   4  *  jleu@mindspring.com
   5  *
   6  *  This software is covered under the LGPL, for more
   7  *  info check out http://www.gnu.org/copyleft/lgpl.html
   8  */
   9
  10 #include "ldp_struct.h"
  11 #include "ldp_hop_list.h"
  12 #include "ldp_hop.h"
  13
  14 #include "mpls_assert.h"
  15 #include "mpls_mm_impl.h"
  16 #include "mpls_trace_impl.h"
  17
  18 ldp_hop *ldp_hop_create()
  19 {
  20   ldp_hop *h = (ldp_hop *) mpls_malloc(sizeof(ldp_hop));
  21
  22   if (h) {
  23     memset(h, 0, sizeof(ldp_hop));
  24     MPLS_REFCNT_INIT(h, 0);
  25     MPLS_LIST_ELEM_INIT(h, _hop_list);
  26   }
  27   return h;
  28 }
  29
  30 void ldp_hop_delete(ldp_hop * h)
  31 {
  32   // LDP_PRINT(g->user_data,"hop delete\n");
  33   MPLS_REFCNT_ASSERT(h, 0);
  34   mpls_free(h);
  35 }
  36
  37 mpls_return_enum _ldp_hop_add_hop_list(ldp_hop * h, ldp_hop_list * hl)
  38 {
  39   if (h && hl) {
  40     MPLS_REFCNT_HOLD(hl);
  41     h->hop_list = hl;
  42     return MPLS_SUCCESS;
  43   }
  44   return MPLS_FAILURE;
  45 }
  46
  47 mpls_return_enum _ldp_hop_del_hop_list(ldp_hop * h)
  48 {
  49   if (h && h->hop_list) {
  50     MPLS_REFCNT_RELEASE(h->hop_list, ldp_hop_list_delete);
  51     h->hop_list = NULL;
  52     return MPLS_SUCCESS;
  53   }
  54   return MPLS_FAILURE;
  55 }
  56
  57 mpls_bool ldp_hop_in_use(ldp_hop * h)
  58 {
  59   if (h->hop_list && h->hop_list->tunnel &&
  60     (h->hop_list->tunnel->admin_state == MPLS_ADMIN_ENABLE)) {
  61     return MPLS_BOOL_TRUE;
  62   }
  63   return MPLS_BOOL_FALSE;
  64 }