github.com/codingfuture/orig-energi3@v0.8.4/energi/contracts/src/BackboneRewardV1.sol (about)

     1  // Copyright 2019 The Energi Core Authors
     2  // This file is part of Energi Core.
     3  //
     4  // Energi Core is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // Energi Core is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU General Public License
    15  // along with Energi Core. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  // Energi Governance system is the fundamental part of Energi Core.
    18  
    19  // NOTE: It's not allowed to change the compiler due to byte-to-byte
    20  //       match requirement.
    21  pragma solidity 0.5.16;
    22  //pragma experimental SMTChecker;
    23  
    24  import { GlobalConstants } from "./constants.sol";
    25  import { IGovernedContract, GovernedContract } from "./GovernedContract.sol";
    26  import { IBlockReward } from "./IBlockReward.sol";
    27  import { NonReentrant } from "./NonReentrant.sol";
    28  
    29  /**
    30   * Genesis hardcoded version of BackboneReward
    31   *
    32   * NOTE: it MUST NOT change after blockchain launch!
    33   */
    34  contract BackboneRewardV1 is
    35      GlobalConstants,
    36      GovernedContract,
    37      IBlockReward,
    38      NonReentrant
    39  {
    40      address payable public backbone_address;
    41  
    42      // IGovernedContract
    43      //---------------------------------
    44      constructor(address _proxy, address payable _backbone_address) public GovernedContract(_proxy) {
    45          backbone_address = _backbone_address;
    46      }
    47  
    48      // IBlockReward
    49      //---------------------------------
    50      function reward()
    51          external payable
    52          noReentry
    53      {
    54          if (msg.value > 0) {
    55              backbone_address.transfer(msg.value);
    56          }
    57      }
    58  
    59      function getReward(uint _blockNumber)
    60          external view
    61          returns(uint amount)
    62      {
    63          if ((_blockNumber > 0) && (backbone_address != address(0))) {
    64              amount = REWARD_BACKBONE_V1;
    65          }
    66      }
    67  
    68      // Safety
    69      //---
    70      function () external payable {
    71          revert("Not supported");
    72      }
    73  }
    74