C++ (Cpp) GNUNET_MQ_send_cancel Examples

Example #1

File: test_mq_client.c Project: tg-x/gnunet

static void
test_mq (struct GNUNET_CLIENT_Connection *client)
{
  struct GNUNET_MQ_Handle *mq;
  struct GNUNET_MQ_Envelope *mqm;

  /* FIXME: test handling responses */
  mq = GNUNET_MQ_queue_for_connection_client (client, NULL, NULL, NULL);

  mqm = GNUNET_MQ_msg_header (MY_TYPE);
  GNUNET_MQ_send (mq, mqm);

  mqm = GNUNET_MQ_msg_header (MY_TYPE);
  GNUNET_MQ_notify_sent (mqm, send_trap_cb, NULL);
  GNUNET_MQ_send (mq, mqm);
  GNUNET_MQ_send_cancel (mqm);

  mqm = GNUNET_MQ_msg_header (MY_TYPE);
  GNUNET_MQ_notify_sent (mqm, send_cb, NULL);
  GNUNET_MQ_send (mq, mqm);

}

Example #2

File: gnunet-service-conversation.c Project: GNUnet/gnunet

/**
 * Function to handle audio data from the client
 *
 * @param cls the `struct Line` the message is about
 * @param msg the message from the client
 */
static void
handle_client_audio_message (void *cls,
                             const struct ClientAudioMessage *msg)
{
  struct Line *line = cls;
  struct ClientAudioMessage *mam;
  struct Channel *ch;
  size_t size;

  size = ntohs (msg->header.size) - sizeof (struct ClientAudioMessage);
  ch = find_channel_by_line (line,
                             msg->cid);
  if (NULL == ch)
  {
    /* could have been destroyed asynchronously, ignore message */
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                "Channel %u not found\n",
                msg->cid);
    GNUNET_SERVICE_client_continue (line->client);
    return;
  }

  switch (ch->status)
  {
  case CS_CALLEE_INIT:
  case CS_CALLEE_RINGING:
  case CS_CALLER_CALLING:
    GNUNET_break (0);
    GNUNET_SERVICE_client_drop (line->client);
    return;
  case CS_CALLEE_CONNECTED:
  case CS_CALLER_CONNECTED:
    /* common case, handled below */
    break;
  case CS_CALLEE_SHUTDOWN:
  case CS_CALLER_SHUTDOWN:
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
                "Cadet audio channel in shutdown; audio data dropped\n");
    GNUNET_SERVICE_client_continue (line->client);
    return;
  }
  if (GNUNET_YES == ch->suspended_local)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                "This channel is suspended locally\n");
    GNUNET_SERVICE_client_drop (line->client);
    return;
  }
  if (NULL != ch->env)
  {
    /* NOTE: we may want to not do this and instead combine the data */
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                "Bandwidth insufficient; dropping previous audio data segment\n");
    GNUNET_MQ_send_cancel (ch->env);
    ch->env = NULL;
  }

  ch->env = GNUNET_MQ_msg_extra (mam,
                                 size,
                                 GNUNET_MESSAGE_TYPE_CONVERSATION_CADET_AUDIO);
  GNUNET_memcpy (&mam[1],
                 &msg[1],
                 size);
  /* FIXME: set options for unreliable transmission */
  GNUNET_MQ_notify_sent (ch->env,
                         &channel_audio_sent_notify,
                         ch);
  GNUNET_MQ_send (ch->mq,
                  ch->env);
  GNUNET_SERVICE_client_continue (line->client);
}