0280fa0264
This commit converts all block height references to int32 instead of int64. The current target block production rate is 10 mins per block which means it will take roughly 40,800 years to reach the maximum height an int32 affords. Even if the target rate were lowered to one block per minute, it would still take roughly another 4,080 years to reach the maximum. In the mean time, there is no reason to use a larger type which results in higher memory and disk space usage. However, for now, in order to avoid having to reserialize a bunch of database information, the heights are still serialized to the database as 8-byte uint64s. This is being mainly being done in preparation for further upcoming infrastructure changes which will use the smaller and more efficient 4-byte serialization in the database as well. |
||
|---|---|---|
| .. | ||
| doc.go | ||
| genesis_test.go | ||
| genesis.go | ||
| internal_test.go | ||
| params.go | ||
| README.md | ||
| register_test.go | ||
chaincfg
[
]
(https://travis-ci.org/btcsuite/btcd) ![ISC License]
(http://img.shields.io/badge/license-ISC-blue.svg)
Package chaincfg defines chain configuration parameters for the three standard Bitcoin networks and provides the ability for callers to define their own custom Bitcoin networks.
Although this package was primarily written for btcd, it has intentionally been designed so it can be used as a standalone package for any projects needing to use parameters for the standard Bitcoin networks or for projects needing to define their own network.
Sample Use
package main
import (
"flag"
"fmt"
"log"
"github.com/btcsuite/btcutil"
"github.com/btcsuite/btcd/chaincfg"
)
var testnet = flag.Bool("testnet", false, "operate on the testnet Bitcoin network")
// By default (without -testnet), use mainnet.
var chainParams = &chaincfg.MainNetParams
func main() {
flag.Parse()
// Modify active network parameters if operating on testnet.
if *testnet {
chainParams = &chaincfg.TestNet3Params
}
// later...
// Create and print new payment address, specific to the active network.
pubKeyHash := make([]byte, 20)
addr, err := btcutil.NewAddressPubKeyHash(pubKeyHash, chainParams)
if err != nil {
log.Fatal(err)
}
fmt.Println(addr)
}
Documentation
[
]
(http://godoc.org/github.com/btcsuite/btcd/chaincfg)
Full go doc style documentation for the project can be viewed online without
installing this package by using the GoDoc site
here.
You can also view the documentation locally once the package is installed with
the godoc tool by running godoc -http=":6060" and pointing your browser to
http://localhost:6060/pkg/github.com/btcsuite/btcd/chaincfg
Installation
$ go get github.com/btcsuite/btcd/chaincfg
GPG Verification Key
All official release tags are signed by Conformal so users can ensure the code has not been tampered with and is coming from the btcsuite developers. To verify the signature perform the following:
-
Download the public key from the Conformal website at https://opensource.conformal.com/GIT-GPG-KEY-conformal.txt
-
Import the public key into your GPG keyring:
gpg --import GIT-GPG-KEY-conformal.txt -
Verify the release tag with the following command where
TAG_NAMEis a placeholder for the specific tag:git tag -v TAG_NAME
License
Package chaincfg is licensed under the copyfree ISC License.