join.cpp

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** PBX4Linux                                                                 **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** join functions                                                            **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 #include "main.h"
  13 //#define __u8 unsigned char
  14 //#define __u16 unsigned short
  15 //#define __u32 unsigned int
  16
  17 unsigned int join_serial = 1; /* must be 1, because 0== no join */
  18
  19 //JOIN_STATES
  20
  21 class Join *join_first = NULL;
  22
  23 /*
  24  * find the join with join_id
  25  */
  26 class Join *find_join_id(unsigned int join_id)
  27 {
  28         class Join *join = join_first;
  29
  30         while(join) {
  31 //printf("comparing: '%s' with '%s'\n", name, join->j_name);
  32                 if (join->j_serial == join_id)
  33                         return(join);
  34                 join = join->next;
  35         }
  36
  37         return(NULL);
  38 }
  39
  40
  41 /*
  42  * constructor for a new join
  43  */
  44 Join::Join(void)
  45 {
  46         class Join **joinp;
  47
  48         j_serial = join_serial++;
  49         j_type = JOIN_TYPE_NONE;
  50
  51         /* attach to chain */
  52         next = NULL;
  53         joinp = &join_first;
  54         while(*joinp)
  55                 joinp = &((*joinp)->next);
  56         *joinp = this;
  57
  58         classuse++;
  59 }
  60
  61
  62 /*
  63  * join descructor
  64  */
  65 Join::~Join()
  66 {
  67         class Join *cl, **clp;
  68
  69         classuse--;
  70
  71         cl = join_first;
  72         clp = &join_first;
  73         while(cl) {
  74                 if (cl == this)
  75                         break;
  76                 clp = &cl->next;
  77                 cl = cl->next;
  78         }
  79         if (!cl)
  80                 FATAL("software error, join not in chain!\n");
  81         *clp = cl->next; /* detach from chain */
  82 }
  83
  84
  85
  86 /* epoint sends a message to a join
  87  *
  88  */
  89 void Join::message_epoint(unsigned int epoint_id, int message_type, union parameter *param)
  90 {
  91 }
  92
  93
  94 /* free all join structures */
  95 void join_free(void)
  96 {
  97
  98         if (!join_first) {
  99                 PDEBUG(DEBUG_JOIN, "no more pending join(s), done!\n");
 100                 return;
 101         }
 102         while(join_first) {
 103                 if (options.deb & DEBUG_JOIN) {
 104                         PDEBUG(DEBUG_JOIN, "freeing pending join\n");
 105                 }
 106
 107                 delete join_first;
 108         }
 109 }
 110
 111
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