github.com/ethereum/go-ethereum@v1.16.1/params/network_params.go (about)

     1  // Copyright 2017 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser 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  // The go-ethereum library 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 Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package params
    18  
    19  // These are network parameters that need to be constant between clients, but
    20  // aren't necessarily consensus related.
    21  
    22  const (
    23  	// FullImmutabilityThreshold is the number of blocks after which a chain segment is
    24  	// considered immutable (i.e. soft finality). It is used by the downloader as a
    25  	// hard limit against deep ancestors, by the blockchain against deep reorgs, by
    26  	// the freezer as the cutoff threshold and by clique as the snapshot trust limit.
    27  	FullImmutabilityThreshold = 90000
    28  )