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Go Node and SDK for the NEO blockchain
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Roman Khimov 0cd3493fa5 core: fix potential locking problem in mempool 
I think it should fix this issue mentioned in the #526:

INFO[1456] blockchain persist completed                  blockHeight=63480 headerHeight=1810000 persistedBlocks=1 persistedKeys=4 took=740.7113ms
fatal error: concurrent map read and map write

goroutine 322 [running]:
runtime.throw(0xc8a6dc, 0x21)
        /usr/local/go/src/runtime/panic.go:774 +0x72 fp=0xc003473958 sp=0xc003473928 pc=0x42e282
runtime.mapaccess2(0xb706a0, 0xc0001893b0, 0xc0034739c8, 0xc0028704e0, 0x3)
        /usr/local/go/src/runtime/map.go:470 +0x278 fp=0xc0034739a0 sp=0xc003473958 pc=0x40dc08
github.com/CityOfZion/neo-go/pkg/core.MemPool.ContainsKey(0xc0001d0d20, 0xc0001893b0, 0xc0001893e0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
        /neo-go/pkg/core/mem_pool.go:92 +0xcb fp=0xc003473a30 sp=0xc0034739a0 pc=0x9326db
github.com/CityOfZion/neo-go/pkg/core.(*Blockchain).HasTransaction(0xc0001ca8c0, 0x49f0b45d430e441b, 0x553db79b7072821c, 0x28969518de11976, 0xba5100efddbe79d4, 0xc003473cd0)
        /neo-go/pkg/core/blockchain.go:803 +0xa1 fp=0xc003473b68 sp=0xc003473a30 pc=0x914b11
github.com/CityOfZion/neo-go/pkg/core.Blockchainer.HasTransaction-fm(0x49f0b45d430e441b, 0x553db79b7072821c, 0x28969518de11976, 0xba5100efddbe79d4, 0xc005a5d388)
        /neo-go/pkg/core/blockchainer.go:28 +0x46 fp=0xc003473ba8 sp=0xc003473b68 pc=0x997326
github.com/CityOfZion/neo-go/pkg/network.(*Server).handleInvCmd(0xc00018f680, 0xd9d980, 0xc00025e190, 0xc005a5d380, 0x0, 0x0)
        /neo-go/pkg/network/server.go:401 +0x3bb fp=0xc003473d38 sp=0xc003473ba8 pc=0x9924cb
github.com/CityOfZion/neo-go/pkg/network.(*Server).handleMessage(0xc00018f680, 0xd9d980, 0xc00025e190, 0xc007a0d050, 0x0, 0x0)
        /neo-go/pkg/network/server.go:582 +0x1ae fp=0xc003473da0 sp=0xc003473d38 pc=0x993bbe
github.com/CityOfZion/neo-go/pkg/network.(*TCPTransport).handleConn(0xc000228420, 0xd9b880, 0xc0001b6f00)
        /neo-go/pkg/network/tcp_transport.go:93 +0x202 fp=0xc003473fc8 sp=0xc003473da0 pc=0x996672
runtime.goexit()
        /usr/local/go/src/runtime/asm_amd64.s:1357 +0x1 fp=0xc003473fd0 sp=0xc003473fc8 pc=0x45b3e1
created by github.com/CityOfZion/neo-go/pkg/network.(*TCPTransport).Dial
        /neo-go/pkg/network/tcp_transport.go:36 +0xb4

The problem is that we're modifying `unsortedTxn` under a reader lock.
2019-12-02 22:36:59 +03:00
.circleci CI: step build_image should use golang:1-alpine 2019-11-18 17:17:22 +03:00
.docker docker: add an entrypoint wrapper and 6K block dump to import 2019-11-29 16:26:34 +03:00
.github add new neo logo with gopher 2019-10-22 19:48:22 +03:00
_pkg.dev vm: implement json tests from neoVM 2019-11-06 16:22:56 +03:00
cli smartcontract: implement non-test invokers 2019-11-29 19:00:24 +03:00
config config/docker: fix privnet setup to match neo-local 2019-11-29 13:06:14 +03:00
docs docs: update consensus doc with more details 2019-11-29 17:18:34 +03:00
examples examples: remove underscores from package names 2019-09-03 18:00:10 +03:00
pkg core: fix potential locking problem in mempool 2019-12-02 22:36:59 +03:00
.dockerignore Fix build node and docker-image 2019-08-26 19:32:09 +03:00
.gitignore Makefile: add some convenience targets 2019-09-09 12:02:24 +03:00
.gitmodules vm: implement json tests from neoVM 2019-11-06 16:22:56 +03:00
.travis.yml update minimum supported version of Go to 1.12 2019-09-10 20:30:54 +03:00
CHANGELOG.md CHANGELOG: fix typo 2019-11-29 20:52:59 +03:00
CONTRIBUTING.md CONTRIBUTING: adapt to new reality a bit 2019-08-20 19:07:58 +03:00
Dockerfile docker: add an entrypoint wrapper and 6K block dump to import 2019-11-29 16:26:34 +03:00
go.mod network: plug in dBFT library 2019-11-27 10:57:22 +03:00
go.sum network: plug in dBFT library 2019-11-27 10:57:22 +03:00
LICENSE.md LICENSE.md: rename from LICENCE.md 2019-08-20 18:47:08 +03:00
Makefile Makefile: add env_clean to drop storage volume 2019-11-29 12:48:00 +03:00
neo-go.service.template service file templating 2019-11-13 15:05:13 +03:00
README.md docs: add consensus.md 2019-11-28 16:02:09 +03:00
ROADMAP.md update CHANGELOG and ROADMAP, release 0.70.0! 2019-11-29 20:40:01 +03:00

README.md

logo

Go Node and SDK for the NEO blockchain.

codecov CircleCI Report GoDoc GitHub release (latest SemVer) License

Overview

This project aims to be a full port of the original C# NEO project. A complete toolkit for the NEO blockchain, including:

Getting started

Installation

Go: 1.12+

Install dependencies.

neo-go uses GoModules as dependency manager:

make deps

How to setup a node

Docker

Each tagged build is built to docker hub and the :latest tag pointing at the latest tagged build.

By default the CMD is set to run a node on testnet, so to do this simply run:

 docker run -d --name neo-go -p 20332:20332 -p 20333:20333 cityofzion/neo-go

Which will start a node on testnet and expose the nodes port 20333 and 20332 for the JSON-RPC server.

Building

Build the neo-go CLI:

make build

Quick start a NEO node on the private network. This requires the neo-privatenet Docker image running on your machine.

make run

To run the binary directly:

./bin/neo-go node

By default the node will run on the private network, to change his:

./bin/neo-go node --mainnet

Available network flags:

  • --mainnet, -m
  • --privnet, -p
  • --testnet, -t

Contributing

Feel free to contribute to this project after reading the contributing guidelines.

Before starting to work on a certain topic, create an new issue first, describing the feature/topic you are going to implement.

Contact

License

  • Open-source MIT