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brcd-vm add nodeMonitorCOde Jul 3, 2019
bvmc add nodeMonitorCOde Jul 3, 2019
contracts add nodeMonitorCOde Jul 3, 2019
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libbrcd-interpreter add nodeMonitorCOde Jul 3, 2019
libbrcdchain fix bug about transaction the gas is 0 Sep 26, 2019
libdevcore fix error value in receive fee income Aug 27, 2019
libdevcrypto add sendNode delay Jul 5, 2019
libp2p add cant param , same ip connect Aug 25, 2019
libshdposseal p2p Sep 1, 2019
libweb3jsonrpc modify rpc GasUsedCode Sep 19, 2019
rlp add nodeMonitorCOde Jul 3, 2019
test test Aug 19, 2019
.clang-format add nodeMonitorCOde Jul 3, 2019
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CMakeLists.txt add CMake comment about debug GDB Aug 17, 2019 format text fix Jun 12, 2019 p2p Sep 1, 2019

formerly known as cpp_bearchain project.

Building from source

Get the source code

Git and GitHub are used to maintain the source code. Clone the repository by:

git clone --recursive
cd brcd

The --recursive option is important. It orders git to clone additional submodules to build the project. If you missed --recursive option, you are able to correct your mistake with command git submodule update --init.

Install CMake

CMake is used to control the build configuration of the project. Latest version of CMake is required (at the time of writing 3.9.3 is the minimum). We strongly recommend you to install CMake by downloading and unpacking the binary distribution of the latest version available on the CMake download page.

The CMake package available in your operating system can also be installed and used if it meets the minimum version requirement.

Alternative method

The repository contains the scripts/ script that downloads a fixed version of CMake and unpacks it to the given directory prefix. Example usage: scripts/ --prefix /usr/local.

Install dependencies (Windows)

We provide prebuilt dependencies to build the project. Download them with the scripts\install_deps.bat script.



Configure the project build with the following command to create the build directory with the configuration.

mkdir build; cd build  # Create a build directory.
cmake ..               # Configure the project.
cmake --build .        # Build all default targets.

On Windows Visual Studio 2015 is required. You should generate Visual Studio solution file (.sln) for 64-bit architecture by adding -G "Visual Studio 14 2015 Win64" argument to the CMake configure command. After configuration is completed, the brcd.sln can be found in the build directory.

cmake .. -G "Visual Studio 14 2015 Win64"

On Ubuntu 18.04

    sudo apt-get install -y 

Common Issues Building on Windows

LINK : fatal error LNK1158: cannot run 'rc.exe'

Rc.exe is the Microsoft Resource Compiler. It's distributed with the Windows SDK and is required for generating the Visual Studio solution file. It can be found in the following directory: %ProgramFiles(x86)%\Windows Kits\<OS major version>\bin\<OS full version>\<arch>\

If you hit this error, adding the directory to your path (and launching a new command prompt) should fix the issue.


Note: The following is the output of brcd.exe -h [--help]

   brcd 1.4.0
   brcd [options]

   account list                                List all keys available in wallet
   account new                                 Create a new key and add it to wallet
   account update [<uuid>|<address> , ... ]    Decrypt and re-encrypt keys
   account import [<uuid>|<file>|<secret-hex>] Import keys from given source and place in wallet
   wallet import <file>                        Import a presale wallet

CLIENT MODE (default):
  --mainnet                               Use the main network protocol
  --ropsten                               Use the Ropsten testnet
  --private <name>                        Use a private chain
  --test                                  Testing mode; disable PoW and provide test rpc interface
  --config <file>                         Configure specialised blockchain using given JSON information

  -o [ --mode ] <full/peer>               Start a full node or a peer node (default: full)

  --ipc                                   Enable IPC server (default: on)
  --ipcpath <path>                        Set .ipc socket path (default: data directory)
  --no-ipc                                Disable IPC server
  --admin <password>                      Specify admin session key for JSON-RPC (default: auto-generated and printed at start-up)
  -K [ --kill ]                           Kill the blockchain first
  -R [ --rebuild ]                        Rebuild the blockchain from the existing database
  --rescue                                Attempt to rescue a corrupt database

  --import-presale <file>                 Import a pre-sale key; you'll need to specify the password to this key
  -s [ --import-secret ] <secret>         Import a secret key into the key store
  -S [ --import-session-secret ] <secret> Import a secret session into the key store
  --master <password>                     Give the master password for the key store; use --master "" to show a prompt
  --password <password>                   Give a password for a private key

  --ask <wei>            Set the minimum ask gas price under which no transaction will be mined (default: 20000000000)
  --bid <wei>            Set the bid gas price to pay for transactions (default: 20000000000)
  --unsafe-transactions  Allow all transactions to proceed without verification; EXTREMELY UNSAFE

  -a [ --address ] <addr>         Set the author (mining payout) address (default: auto)
  -m [ --mining ] <on/off/number> Enable mining; optionally for a specified number of blocks (default: off)
  --extra-data arg                Set extra data for the sealed blocks

  -x [ --peers ] <number>         Attempt to connect to a given number of peers (default: 11)
  --peer-stretch <number>         Give the accepted connection multiplier (default: 7)
  --public-ip <ip>                Force advertised public IP to the given IP (default: auto)
  --listen-ip <ip>(:<port>)       Listen on the given IP for incoming connections (default:
  --listen <port>                 Listen on the given port for incoming connections (default: 30303)
  -r [ --remote ] <host>(:<port>) Connect to the given remote host (default: none)
  --port <port>                   Connect to the given remote port (default: 30303)
  --network-id <n>                Only connect to other hosts with this network id
  --peerset <list>                Space delimited list of peers; element format: type:publickey@ipAddress[:port]
                                          default     Attempt connection when no other peers are available and pinning is disabled
                                          required    Keep connected at all times

  --no-discovery                  Disable node discovery; implies --no-bootstrap
  --pin                           Only accept or connect to trusted peers

  -M,--benchmark               Benchmark for mining and exit
  --benchmark-warmup <seconds> Set the duration of warmup for the benchmark tests (default: 3)
  --benchmark-trial <seconds>  Set the duration for each trial for the benchmark tests (default: 3)
  --benchmark-trials <n>       Set the number of trials for the benchmark tests (default: 5)

  -C,--cpu                   When mining, use the CPU
  -t, --mining-threads <n>   Limit number of CPU/GPU miners to n (default: use everything available on selected platform)
  --current-block            Let the miner know the current block number at configuration time. Will help determine DAG size and required GPU memory
  --disable-submit-hashrate  When mining, don't submit hashrate to node

  -I [ --import ] <file>      Import blocks from file
  -E [ --export ] <file>      Export blocks to file
  --from <n>                  Export only from block n; n may be a decimal, a '0x' prefixed hash, or 'latest'
  --to <n>                    Export only to block n (inclusive); n may be a decimal, a '0x' prefixed hash, or 'latest'
  --only <n>                  Equivalent to --export-from n --export-to n
  --format <binary/hex/human> Set export format
  --dont-check                Prevent checking some block aspects. Faster importing, but to apply only when the data is known to be valid
  --download-snapshot <path>  Download Parity Warp Sync snapshot data to the specified path
  --import-snapshot <path>    Import blockchain and state data from the Parity Warp Sync snapshot

  --vm <name>|<path> (=legacy) Select VM implementation. Available options are: interpreter, legacy.

  -v [ --log-verbosity ] <0 - 4>        Set the log verbosity from 0 to 4 (default: 2).
  --log-channels <channel_list>         Space-separated list of the log channels to show (default: show all channels).
  --log-exclude-channels <channel_list> Space-separated list of the log channels to hide.

  -V [ --version ]        Show the version and exit
  -h [ --help ]           Show this help message and exit


Details on how to run and debug the tests can be found



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