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File ulex/ulex.dot artifact 08f8e06c6d part of check-in 3d2d201a06


//  Copyright 2006-2017, Matthew Welland.
// 
// This file is part of Megatest.
// 
//     Megatest is free software: you can redistribute it and/or modify
//     it under the terms of the GNU General Public License as published by
//     the Free Software Foundation, either version 3 of the License, or
//     (at your option) any later version.
// 
//     Megatest is distributed in the hope that it will be useful,
//     but WITHOUT ANY WARRANTY; without even the implied warranty of
//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//     GNU General Public License for more details.
// 
//     You should have received a copy of the GNU General Public License
//     along with Megatest.  If not, see <http://www.gnu.org/licenses/>.

digraph G {

  // graph[center=true, margin=0.2, nodesep=0.1, ranksep=0.3]

  layout=neato;
  // layout=fdp;
  // overlap=scalexy; //false, compress, ...
  overlap=scalexy;
  // sep="+1"; // 0.1, +1
  sep="-0.1";
 
  user_program [label="user program"];
  
  subgraph cluster_1 {
    node [style=filled,shape=oval];
    label = "caller";
    color=brown;

    send_receive [label="(send-receive uconn\n   host-port qrykey cmd data)"];
    send [label="(send uconn host-port\n    qrykey cmd data)"];
    ulex_cmd_loopcaller [label="(ulex-cmd-loop uconn)"];
    ulex_handlercaller [label="(ulex-handler uconn rdat)"];
    mailbox [label="mailbox\n\nrdat\n...",shape=box];
    
    send_receive -> send;
    ulex_cmd_loopcaller -> ulex_handlercaller;
    ulex_handlercaller -> mailbox;
    mailbox -> send_receive;
  }

  subgraph cluster_2 {
    node [shape=oval];
    label = "listener";
    color=green;

    ulex_cmd_loop [label="(ulex-cmd-loop uconn)"];
    ulex_handler [label="(ulex-handler \nuconn rdat)"];
    add_to_work_queue [label="(add-to-work-queue\n  uconn rdat)"];
    queue [label="queue\n\nrdat\n...",shape=box];
    process_work_queue [label="(process-work-queue uconn)"];
    do_work [label="(do-work uconn rdat)\nrdat: '(rem-host-port qrykey cmd params)"];
    user_proc [label="(proc rem-host-port\n    qrykey cmd params)\n;; proc supplied by user"];
    sendlis [label="(send uconn host-port\n    qrykey 'response result)"];
    
    ulex_cmd_loop -> ulex_handler [label="rdat"];
    ulex_handler -> add_to_work_queue [label="rdat"];

    add_to_work_queue -> queue [label="rdat"];

    subgraph cluster_3 {
      label = "remote work";
      color=blue;
      
      queue -> process_work_queue [label="rdat"];
      process_work_queue -> do_work [label="rdat"];
      do_work -> user_proc; // [label="rdat: '(rem-host-port\n   qrykey cmd params)"];
    }
  }

  user_proc -> sendlis;
  user_program -> send_receive;
  send_receive -> user_program;
  
  send -> ulex_cmd_loop [label="rdat: '(host-port\n  qrykey cmd data)"];
  sendlis -> ulex_cmd_loopcaller [label="rdat: '(host-port qrykey\n  'response result)"];
  ulex_handler -> send [label="'ack"];
  ulex_handlercaller -> sendlis [label="'ack"];
  
}


// 	check_available_queue       -> remove_entries_over_10s_old;
// 	remove_entries_over_10s_old -> set_available [label="num_avail < 3"];
// 	remove_entries_over_10s_old -> exit [label="num_avail > 2"];
// 
// 	set_available               -> delay_2s;
// 	delay_2s          -> check_place_in_queue;
// 
// 	check_place_in_queue        -> "http:transport-launch" [label="at head"];
// 	check_place_in_queue        -> exit [label="not at head"];
// 
// 	"client:login"              -> "server:shutdown" [label="login failed"];
// 	"server:shutdown"           -> exit;	
// 
// 	subgraph cluster_2 {
// 		"http:transport-launch"       -> "http:transport-run";
// 		"http:transport-launch"       -> "http:transport-keep-running";
// 
// 		"http:transport-keep-running" -> "tests running?";
// 		"tests running?"              -> "client:login" [label=yes];
// 		"tests running?"              -> "server:shutdown" [label=no];
// 		"client:login"                -> delay_5s [label="login ok"];
// 		delay_5s                      -> "http:transport-keep-running";
// 	}
// 
	// start_server -> "server_running?";
	// "server_running?" -> set_available [label="no"];
	// "server_running?" -> delay_2s [label="yes"];
	// delay_2s -> "still_running?";
	// "still_running?" -> ping_server [label=yes];
	// "still_running?" -> set_available [label=no];
	// ping_server -> exit [label=alive];
	// ping_server -> remove_server_record [label=dead];
	// remove_server_record -> set_available;
	// set_available -> avail_delay [label="delay 3s"];
	// avail_delay -> "first_in_queue?";
	// 
	// "first_in_queue?" -> set_running [label=yes];
	// set_running -> get_next_port -> handle_requests;
	// "first_in_queue?" -> "dead_entry_in_queue?" [label=no];
	// "dead_entry_in_queue?" -> "server_running?" [label=no];
	// "dead_entry_in_queue?" -> "remove_dead_entries" [label=yes];
	// remove_dead_entries -> "server_running?";
	// 
	// handle_requests -> start_shutdown [label="no traffic\nno running tests"];
	// handle_requests -> shutdown_request;
	// start_shutdown -> shutdown_delay;
	// shutdown_request -> shutdown_delay;
	// shutdown_delay -> exit;