text: /*
   * Copyright (c) 2015 Cryptonomex, Inc., and contributors.
   *
   * The MIT License
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  #pragma once
  
  #define GRAPHENE_NET_PROTOCOL_VERSION                        106
  
  /**
   * Define this to enable debugging code in the p2p network interface.
   * This is code that would never be executed in normal operation, but is
   * used for automated testing (creating artificial net splits,
   * tracking where messages came from and when)
   */
  #define ENABLE_P2P_DEBUGGING_API                             1
  
  /**
   * 2MiB
   */
  #define MAX_MESSAGE_SIZE                                     1024*1024*2
  #define GRAPHENE_NET_DEFAULT_PEER_CONNECTION_RETRY_TIME      30 // seconds
  
  /**
   * AFter trying all peers, how long to wait before we check to
   * see if there are peers we can try again.
   */
  #define GRAPHENE_PEER_DATABASE_RETRY_DELAY                   15 // seconds
  
  #define GRAPHENE_NET_PEER_HANDSHAKE_INACTIVITY_TIMEOUT       5
  
  #define GRAPHENE_NET_PEER_DISCONNECT_TIMEOUT                 20
  
  #define GRAPHENE_NET_TEST_SEED_IP                            "104.236.44.210" // autogenerated
  #define GRAPHENE_NET_TEST_P2P_PORT                           1700
  #define GRAPHENE_NET_DEFAULT_P2P_PORT                        1776
  #define GRAPHENE_NET_DEFAULT_DESIRED_CONNECTIONS             20
  #define GRAPHENE_NET_DEFAULT_MAX_CONNECTIONS                 200
  
  #define GRAPHENE_NET_MAXIMUM_QUEUED_MESSAGES_IN_BYTES        (1024 * 1024)
  
  /**
   * When we receive a message from the network, we advertise it to
   * our peers and save a copy in a cache were we will find it if
   * a peer requests it.  We expire out old items out of the cache
   * after this number of blocks go by.
   * 
   * Recently lowered from 30 to match the default expiration time
   * the web wallet imposes on transactions.
   */
  #define GRAPHENE_NET_MESSAGE_CACHE_DURATION_IN_BLOCKS        40
  
  /**
   * We prevent a peer from offering us a list of blocks which, if we fetched them
   * all, would result in a blockchain that extended into the future.
   * This parameter gives us some wiggle room, allowing a peer to give us blocks
   * that would put our blockchain up to an hour in the future, just in case
   * our clock is a bit off.
   */
  #define GRAPHENE_NET_FUTURE_SYNC_BLOCKS_GRACE_PERIOD_SEC     (60 * 60)
  
  #define GRAPHENE_NET_MAX_INVENTORY_SIZE_IN_MINUTES           2
  
  #define GRAPHENE_NET_MAX_BLOCKS_PER_PEER_DURING_SYNCING      200
  
  /**
   * During normal operation, how many items will be fetched from each
   * peer at a time.  This will only come into play when the network
   * is being flooded -- typically transactions will be fetched as soon
   * as we find out about them, so only one item will be requested
   * at a time.
   * 
   * No tests have been done to find the optimal value for this
   * parameter, so consider increasing or decreasing it if performance
   * during flooding is lacking.
   */
  #define GRAPHENE_NET_MAX_ITEMS_PER_PEER_DURING_NORMAL_OPERATION  1 
  
  /**
   * Instead of fetching all item IDs from a peer, then fetching all blocks
   * from a peer, we will interleave them.  Fetch at least this many block IDs,
   * then switch into block-fetching mode until the number of blocks we know about
   * but haven't yet fetched drops below this
   */
  #define GRAPHENE_NET_MIN_BLOCK_IDS_TO_PREFETCH               10000
  
  #define GRAPHENE_NET_MAX_TRX_PER_SECOND                      1000
  
  #define GRAPHENE_NET_MAX_NESTED_OBJECTS                      (250)
  
  #define MAXIMUM_PEERDB_SIZE 1000