mike-jumper commented on issue #430: GUACAMOLE-221: Client-side changes for 
parameter prompting
URL: https://github.com/apache/guacamole-client/pull/430#issuecomment-613714970
 
 
   > ... I still have to figure out the proper way to have that session between 
guacamole client and guacd kept alive while waiting for the user.
   
   Aha! I can help here. For guacd --> webapp --> client, you need 
`guac_socket_require_keep_alive()`:
   
   
http://guacamole.apache.org/doc/libguac/socket_8h.html#a1d8c5111a8234c7785ae23f379f7db03
   
   Invoking that function on the relevant `guac_socket` will result in an 
occasional `nop` instruction being sent from server to client every few 
seconds. The instruction is sent frequently enough that the connection is kept 
alive in the server -> client direction.
   
   For client -> server, this should already be happening. The client 
implementation automatically sends `nop` every few seconds, as well.

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