primecoin pool Implement

发表于 2018-09-29 更新于 2018-10-11 分类于区块链阅读次数：本文字数： 5k 阅读时长 ≈ 5 分钟

使用全节点的 RPC 命令来获取模板和提交新块。使用中间件做服务。
基于 primecoin-core 0.16.1 版本。

需要修改一个地方就是，primecoin 限制每笔交易的 vout 数额不能小于 0.01xpm
Primecoin: minimul txout value.
static const CAmount MIN_TXOUT_AMOUNT = 1000000;

支持 segwit 不能有这个限制。看代码 segwit 会在 coinbase 里面创建一个 0 value 的 txout 交易输出。
具体原因和作用暂时没看。先弄 pool 实现。

tyler@ubuntu16:~/Documents/primecoin-core-desktop-src$ ./src/primecoin-cli -rpcuser=user -rpcpassword=password getblocktemplate '{"capabilities":["longpoll", "coinbasetxn", "coinbasevalue"]}'
{
  "capabilities": [
    "proposal"
  ],
  "version": 536870912,
  "rules": [
  ],
  "vbavailable": {
  },
  "vbrequired": 0,
  "previousblockhash": "47124348127fb1d00daf5f1a62c1115fe8fc8a6226f91c042211834459d06567",
  "transactions": [
  ],
  "coinbaseaux": {
    "flags": ""
  },
  "coinbasevalue": 734000000,
  "longpollid": "47124348127fb1d00daf5f1a62c1115fe8fc8a6226f91c042211834459d06567230",
  "target": "0000000000000000000000000000000000000000002937b40000000000000000",
  "mintime": 1539164867,
  "mutable": [
    "time",
    "transactions",
    "prevblock"
  ],
  "noncerange": "00000000ffffffff",
  "sigoplimit": 20000,
  "sizelimit": 1000000,
  "curtime": 1539224387,
  "bits": "0ba937b4",
  "height": 2875236
}

下面的作废，使用新思路

说明

参考 madMax 的代码实现，引用库的升级，primecoin 版本使用 0.16.1。

后面需要使用 bitcoin 的 depends 里面的 make 来编译。目前先手动操作。

Dependency

boost 1.64
WT 4.0.4
postgresql 10.5

zmq 4.2.2
czmq 4.1.1
lz4 1.8.3

Boost 1.64 requires CMake 3.8 or newer.

Compile

cmake 3.12.2

default directory: /usr/local/bin/

./bootstrap
make
sudo make install

need close current console and open another one, type cmake -version check result

lz4

default directory: /usr/local/lib

export CPPFLAGS=-fPIC
export CFLAGS=-fPIC
export CXXFLAGS=-fPIC
export LDFLAGS=-fPIC
make
sudo make install

compile zmq 4.2.2

sudo apt install libunwind-dev
sudo apt install libsystemd-dev

这个可能不需要了，上面已经编译安装了，这个缺少库和 cpp 文件
sudo apt install liblz4-dev

./autogen.sh

# do not specify "--with-libsodium" if you prefer to use internal tweetnacl security implementation (recommended for development)
./configure --with-libsodium CPPFLAGS=-DPIC CFLAGS=-fPIC CXXFLAGS=-fPIC LDFLAGS=-fPIC --disable-shared --enable-static

./configure CPPFLAGS=-DPIC CFLAGS=-fPIC CXXFLAGS=-fPIC LDFLAGS=-fPIC --disable-shared --enable-static
make
sudo make install
sudo ldconfig

installed directory
/usr/local/bin
/usr/local/include
/usr/local/lib

czmq 4.1.1

/home/tyler/Documents/primecoin-core-desktop-src/depends/x86_64-pc-linux-gnu

export CFLAGS=-I/home/tyler/Documents/primecoin-core-desktop-src/depends/x86_64-pc-linux-gnu/include
export LDFLAGS=-L/home/tyler/Documents/primecoin-core-desktop-src/depends/x86_64-pc-linux-gnu/lib
export PKG_CONFIG_PATH=$/home/tyler/Documents/primecoin-core-desktop-src/depends/x86_64-pc-linux-gnu/lib/pkgconfig

./configure CPPFLAGS=-DPIC CFLAGS=-fPIC CXXFLAGS=-fPIC LDFLAGS=-fPIC –disable-shared –enable-static –with-uuid=no –prefix=/home/tyler/Documents/primecoin-core-desktop-src/depends/x86_64-pc-linux-gnu

git clone git://github.com/zeromq/czmq.git
cd czmq
./autogen.sh
./configure CPPFLAGS=-DPIC CFLAGS=-fPIC CXXFLAGS=-fPIC LDFLAGS=-fPIC --disable-shared --enable-static --with-uuid=no
make
make check
sudo make install
sudo ldconfig

After building, you can run the CZMQ selftests:

cd src
./czmq_selftest

compile boost 1.64

// 这里的东西可能需要，目前还没需要，这里为什么会有 libboost-all-dev 不确定
sudo apt-get update
sudo apt-get install build-essential g++ python-dev autotools-dev libicu-dev build-essential libbz2-dev libboost-all-dev

cat /usr/include/boost/version.hpp | grep "BOOST_LIB_VERSION"

Download source file from: http://www.boost.org/users/history/version_1_64_0.html
tar -xzvf boost_1_64_0.tar.gz
cd boost_1_64_0
./bootstrap.sh --prefix=/usr/local
./b2
./b2 install

postgresql 10.5

sudo apt-get install libreadline-dev
./configure
make
sudo make install
sudo adduser postgres
sudo mkdir /usr/local/pgsql/data
sudo chown postgres /usr/local/pgsql/data
su - postgres
/usr/local/pgsql/bin/initdb -D /usr/local/pgsql/data
/usr/local/pgsql/bin/postgres -D /usr/local/pgsql/data >logfile 2>&1 &

/usr/local/pgsql/bin/createdb test
/usr/local/pgsql/bin/psql test

compile WT 4.0.4

CMake (>= 3.1)
boost (version >= 1.50)

cd wt-x.y.z
mkdir build; cd build
cmake .. -DPOSTGRES_PREFIX=/usr/local/pgsql/ -DBOOST_ROOT=/usr/local/lib
// need check boost version and postgresql is enabled

make
make -C examples

// To install wt in /usr/local
sudo make install
sudo ldconfig

primecoin-pool 0.16.1

cd depends
make
cd ..
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/x86_64-linux-gnu/
export LDFLAGS="-L/usr/local/lib -Wl,R/usr/local/lib"

// 这个暂时保留，看看下面是否有效
export CPPFLAGS=-DPIC CFLAGS=-fPIC CXXFLAGS=-fPIC LDFLAGS=-fPIC --disable-shared --enable-static

./autogen.sh
./configure --prefix=`pwd`/depends/x86_64-pc-linux-gnu LDFLAGS="-static-libstdc++" CPPFLAGS=-DPIC CFLAGS=-fPIC CXXFLAGS=-fPIC LDFLAGS=-fPIC --disable-shared --enable-static --enable-debug

// 需要调试就加上，注意先 make clean
--enable-debug

make STATIC=all

r -printtoconsole -rpcuser=user -rpcpassword=password -txindex=1 -addrindex=1 -gen