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Diffstat (limited to 'params/network_params.go')
| -rw-r--r-- | params/network_params.go | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/params/network_params.go b/params/network_params.go new file mode 100644 index 0000000..bba2472 --- /dev/null +++ b/params/network_params.go @@ -0,0 +1,61 @@ +// Copyright 2017 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library 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 Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. + +package params + +// These are network parameters that need to be constant between clients, but +// aren't necessarily consensus related. + +const ( + // BloomBitsBlocks is the number of blocks a single bloom bit section vector + // contains on the server side. + BloomBitsBlocks uint64 = 4096 + + // BloomBitsBlocksClient is the number of blocks a single bloom bit section vector + // contains on the light client side + BloomBitsBlocksClient uint64 = 32768 + + // BloomConfirms is the number of confirmation blocks before a bloom section is + // considered probably final and its rotated bits are calculated. + BloomConfirms = 256 + + // CHTFrequency is the block frequency for creating CHTs + CHTFrequency = 32768 + + // BloomTrieFrequency is the block frequency for creating BloomTrie on both + // server/client sides. + BloomTrieFrequency = 32768 + + // HelperTrieConfirmations is the number of confirmations before a client is expected + // to have the given HelperTrie available. + HelperTrieConfirmations = 2048 + + // HelperTrieProcessConfirmations is the number of confirmations before a HelperTrie + // is generated + HelperTrieProcessConfirmations = 256 + + // CheckpointFrequency is the block frequency for creating checkpoint + CheckpointFrequency = 32768 + + // CheckpointProcessConfirmations is the number before a checkpoint is generated + CheckpointProcessConfirmations = 256 + + // ImmutabilityThreshold is the number of blocks after which a chain segment is + // considered immutable (i.e. soft finality). It is used by the downloader as a + // hard limit against deep ancestors, by the blockchain against deep reorgs, by + // the freezer as the cutoff treshold and by clique as the snapshot trust limit. + ImmutabilityThreshold = 90000 +) |