joinremote.cpp

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** Linux Call Router                                                         **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** join functions for remote application                                     **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 #include "main.h"
  13 //#define __u8 unsigned char
  14 //#define __u16 unsigned short
  15 //#define __u32 unsigned int
  16
  17 extern unsigned int new_remote;
  18
  19 /*
  20  * constructor for a new join
  21  * the join will have a relation to the calling endpoint
  22  */
  23 JoinRemote::JoinRemote(unsigned int serial, char *remote_name, int remote_id) : Join()
  24 {
  25         PDEBUG(DEBUG_JOIN, "Constructor(new join)");
  26         union parameter param;
  27
  28         SCPY(j_remote_name, remote_name);
  29         j_remote_id = remote_id;
  30         j_type = JOIN_TYPE_REMOTE;
  31         j_remote_ref = new_remote++;
  32
  33         j_epoint_id = serial; /* this is the endpoint, if created by epoint */
  34         if (j_epoint_id)
  35                 PDEBUG(DEBUG_JOIN, "New remote join connected to endpoint id %lu and application %s\n", j_epoint_id, remote_name);
  36
  37         /* send new ref to remote socket */
  38         memset(&param, 0, sizeof(union parameter));
  39         if (serial)
  40                 param.newref.direction = 1; /* new ref from lcr */
  41         if (admin_message_from_lcr(j_remote_id, j_remote_ref, MESSAGE_NEWREF, &param)<0)
  42                 FATAL("No socket with remote application '%s' found, this shall not happen. because we already created one.\n", j_remote_name);
  43 }
  44
  45
  46 /*
  47  * join descructor
  48  */
  49 JoinRemote::~JoinRemote()
  50 {
  51 }
  52
  53 void JoinRemote::message_epoint(unsigned int epoint_id, int message_type, union parameter *param)
  54 {
  55         /* if endpoint has just been removed, but still a message in the que */
  56         if (epoint_id != j_epoint_id)
  57                 return;
  58
  59         /* look for Remote's interface */
  60         if (admin_message_from_lcr(j_remote_id, j_remote_ref, message_type, param)<0) {
  61                 PERROR("No socket with remote application '%s' found, this shall not happen. Closing socket shall cause release of all joins.\n", j_remote_name);
  62                 return;
  63         }
  64
  65         if (message_type == MESSAGE_RELEASE) {
  66                 delete this;
  67                 return;
  68         }
  69 }
  70
  71 void JoinRemote::message_remote(int message_type, union parameter *param)
  72 {
  73         struct lcr_msg *message;
  74
  75         /* create relation if no relation exists */
  76         if (!j_epoint_id) {
  77                 class Endpoint          *epoint;
  78
  79                 if (!(epoint = new Endpoint(0, j_serial)))
  80                         FATAL("No memory for Endpoint instance\n");
  81                 j_epoint_id = epoint->ep_serial;
  82                 if (!(epoint->ep_app = new DEFAULT_ENDPOINT_APP(epoint, 1))) // outgoing
  83                         FATAL("No memory for Endpoint Application instance\n");
  84         }
  85
  86         /* set serial on bchannel message
  87          * also ref is given, so we send message with ref */
  88         if (message_type == MESSAGE_BCHANNEL) {
  89                 message_bchannel_from_remote(this, param->bchannel.type, param->bchannel.handle);
  90                 return;
  91         }
  92
  93         /* cannot just forward, because param is not of container "struct lcr_msg" */
  94         message = message_create(j_serial, j_epoint_id, JOIN_TO_EPOINT, message_type);
  95         memcpy(&message->param, param, sizeof(message->param));
  96         message_put(message);
  97
  98         if (message_type == MESSAGE_RELEASE) {
  99                 delete this;
 100                 return;
 101         }
 102 }
 103
 104
 105