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81 lines
3.4 KiB
Markdown
81 lines
3.4 KiB
Markdown
# Hot Pocket Consensus Engine
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## What's here?
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*In development*
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A C++ version of hotpocket designed for production envrionments, original prototype here: https://github.com/codetsunami/hotpocket
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## Libraries
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* Crypto - Libsodium https://github.com/jedisct1/libsodium
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* Websockets - Boost|Beast https://github.com/boostorg/beast
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* RapidJSON - http://rapidjson.org
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* Protocol - https://github.com/protocolbuffers/protobuf
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## Steps to setup Hot Pocket
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#### Install Libsodium
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Instructions are based on [this](https://libsodium.gitbook.io/doc/installation).
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1. Download and extract Libsodium 1.0.18 from [here](https://download.libsodium.org/libsodium/releases/libsodium-1.0.18-stable.tar.gz).
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2. Navigate to the extracted libsodium directory in a terminal.
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3. Run `./configure`
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4. Run `make && make check`
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5. Run `sudo make install`
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#### Install Boost
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Following Instructions are based on Boost [getting started](https://www.boost.org/doc/libs/1_71_0/more/getting_started/unix-variants.html#prepare-to-use-a-boost-library-binary)
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1. Download and extract boost 1.71 package from [here](https://www.boost.org/users/history/version_1_71_0.html).
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2. Navigate to the extracted boost directory in a terminal.
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3. Run `./bootstrap.sh`
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4. Run `sudo ./b2 install` (This will compile and install boost libraries into your `/usr/local/lib`)
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#### Install RapidJSON
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1. Download and extract RapidJSON 1.1 source from [here](https://github.com/Tencent/rapidjson/archive/v1.1.0.tar.gz).
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2. Navigate to the extracted directory.
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3. Run `sudo cp -r include/rapidjson /usr/local/include/`
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#### Run ldconfig
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1. Run `sudo ldconfig`
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This will update your library cache and avoid potential issues when running your compiled C++ program which links to newly installed libraries.
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#### Install CMAKE
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If you use apt, run `sudo apt install cmake`
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Or follow [this](https://cmake.org/install/)
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#### Build and run Hot Pocket
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1. navigate to hotpocket repo root.
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1. Run `cmake .` (You only have to do this once)
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1. Run `make`
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1. Run `./build/hpcore new ~/mycontract`. This will initialize a new contract directory `mycontract` in your home directory.
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1. Take a look at `~/mycontract/cfg/hp.cfg`. This is your new contract config file. You can modify it according to your contract hosting requirements.
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1. Optional: Run `./build/hpcore rekey ~/mycontract` to generate new public/private key pair.
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1. Run `./build/hpcore run ~/mycontract` to run your smart contract (to do).
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## Code structure
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Code is divided into subsystems via namespaces. Some subsystems mentioned here are yet to be introduced.
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#### conf
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Handles contract configuration. Loads and holds the central configuration object. Used by most of the subsystems.
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#### crypto
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Handles cryptographic activities. Wraps libsodium and offers convinience functions.
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#### proc
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Handles contract process execution.
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#### usr
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Handles user connections and processing of user I/O with the smart contract. Makes use of **crypto** and **sock**.
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#### ntn
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Handles node-to-node connections and message exchange between nodes. Also handles smart contract node-party-line (npl) I/O. Makes use of **crypto** and **sock**.
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#### cons
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Handles consensus and proposal rounds. Makes use of **usr**, **ntn** and **proc**
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#### sock
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Handles generic web sockets functionality. Mainly acts as a wrapper for boost/beast.
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#### shared
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Contains shared data structures/helper functions used by multiple subsystems. Used by most of the subsystems. |