lsr/lsr_xconnect.c

   1
   2 /*
   3  *  Copyright (C) James R. Leu 2002
   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 "lsr_struct.h"
  11 #include "lsr_xconnect.h"
  12 #include "lsr_outsegment.h"
  13 #include "lsr_insegment.h"
  14
  15 #include "mpls_assert.h"
  16 #include "mpls_mm_impl.h"
  17 #include "mpls_trace_impl.h"
  18
  19 uint32_t _lsr_xconnect_next_index = 1;
  20
  21 lsr_xconnect *lsr_xconnect_create()
  22 {
  23   lsr_xconnect *i = (lsr_xconnect *) mpls_malloc(sizeof(lsr_xconnect));
  24
  25   if (i) {
  26     memset(i, 0, sizeof(lsr_xconnect));
  27     MPLS_REFCNT_INIT(i, 0);
  28     MPLS_LIST_ELEM_INIT(i, _outsegment);
  29     MPLS_LIST_ELEM_INIT(i, _insegment);
  30     MPLS_LIST_ELEM_INIT(i, _global);
  31     i->index = _lsr_xconnect_get_next_index();
  32   }
  33   return i;
  34 }
  35
  36 void lsr_xconnect_delete(lsr_xconnect * i)
  37 {
  38   // LSR_PRINT(g->user_data,"if delete\n");
  39   MPLS_REFCNT_ASSERT(i, 0);
  40   mpls_free(i);
  41 }
  42
  43 uint32_t _lsr_xconnect_get_next_index()
  44 {
  45   uint32_t retval = _lsr_xconnect_next_index;
  46
  47   _lsr_xconnect_next_index++;
  48   if (retval > _lsr_xconnect_next_index) {
  49     _lsr_xconnect_next_index = 1;
  50   }
  51   return retval;
  52 }
  53
  54 mpls_return_enum _lsr_xconnect_add_outsegment(lsr_xconnect * x, lsr_outsegment * o)
  55 {
  56   if (x && o) {
  57     MPLS_REFCNT_HOLD(o);
  58     x->outsegment = o;
  59     return MPLS_SUCCESS;
  60   }
  61   return MPLS_FAILURE;
  62 }
  63
  64 mpls_return_enum _lsr_xconnect_del_outsegment(lsr_xconnect * x)
  65 {
  66   if (x && x->outsegment) {
  67     MPLS_REFCNT_RELEASE(x->outsegment, lsr_outsegment_delete);
  68     x->outsegment = NULL;
  69     return MPLS_SUCCESS;
  70   }
  71   return MPLS_FAILURE;
  72 }
  73
  74 mpls_return_enum _lsr_xconnect_add_insegment(lsr_xconnect * x, lsr_insegment * i)
  75 {
  76   if (x && i) {
  77     MPLS_REFCNT_HOLD(i);
  78     x->insegment = i;
  79     return MPLS_SUCCESS;
  80   }
  81   return MPLS_FAILURE;
  82 }
  83
  84 mpls_return_enum _lsr_xconnect_del_insegment(lsr_xconnect * x)
  85 {
  86   if (x && x->insegment) {
  87     MPLS_REFCNT_RELEASE(x->insegment, lsr_insegment_delete);
  88     x->insegment = NULL;
  89     return MPLS_SUCCESS;
  90   }
  91   return MPLS_FAILURE;
  92 }