chfast

DevP2P / libp2p Daemon

This node comes directly from ethereum-js team meeting dusing EthCC, but the idea described here lives longer.

Base P2P layer as a separate process

Instead of having the base layer of the P2P network stack implemented as a library (like currently DevP2P) it should be moved to its own process running on the same machine with specified Inter-Process Communiocation (IPC) for accessing it.

chfast

Ethereum Client Modular Design

chfast

How to explicity uninitialize variables in C++

struct uninitialized_t
{
    template<typename T>
    operator T() const noexcept
    {
 char data alignas(T)[sizeof(T)];

chfast

JSON-RPC Proxy Server

JSON-RPC Proxy Server extends JSON-RPC servers capabilities by providing additional request-response transport protocols. The basic use case is to add HTTP / WebSocket connectivity to servers available only by Unix Domain Sockets or Windows Named Pipes.

Proposed project names

• dopple (from Doppelgänger)
• surpass

chfast

from http.server import HTTPServer, BaseHTTPRequestHandler
import json


class HTTPRequestHandler(BaseHTTPRequestHandler):

    def do_GET(self):
        self.send_response(200)
        self.send_header("Content-type", "text/plain")
        self.end_headers()

chfast

#include <array>
#include <atomic>
#include <chrono>
#include <iostream>
#include <random>
#include <thread>
#include <vector>

struct item
{

chfast

=================================================================
==2259==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 64 byte(s) in 2 object(s) allocated from:
    #0 0x7f9dade76532 in operator new(unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x99532)
    #1 0x1c2ca48 in boost::phoenix::new_eval::result<boost::phoenix::new_eval (boost::proto::exprns_::basic_expr<boost::proto::tagns_::tag::terminal, boost::proto::argsns_::term<boost::phoenix::detail::target<boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<0u, 0u, (boost::multiprecision::cpp_integer_type)1, (boost::multiprecision::cpp_int_check_type)0, std::allocator<unsigned long long> >, (boost::multiprecision::expression_template_option)1> > >, 0l> const&, boost::phoenix::actor<boost::spirit::argument<0> > const&, boost::phoenix::vector2<boost::phoenix::vector4<boost::phoenix::actor<boost::proto::exprns_::basic_expr<boost::proto::tagns_::tag::assign, boost::proto::argsns_::list2<boost::proto::exprns_::e

chfast

  m  23:57:44|ethminer  Got work package: #20393907
  ℹ  23:57:44|cudaminer0  set work; seed: #cb5d57db, target:  #0000000225c1
  m  23:57:44|ethminer  Mining on #20393907… : 20.97MH/s [A1+0:R0+0:F0]
  m  23:57:45|ethminer  Mining on #20393907… : 26.43MH/s [A1+0:R0+0:F0]
  m  23:57:45|ethminer  Mining on #20393907… : 27.31MH/s [A1+0:R0+0:F0]
  m  23:57:46|ethminer  Mining on #20393907… : 25.49MH/s [A1+0:R0+0:F0]
  m  23:57:47|ethminer  Mining on #20393907… : 26.66MH/s [A1+0:R0+0:F0]
  m  23:57:47|ethminer  Mining on #20393907… : 25.87MH/s [A1+0:R0+0:F0]
  m  23:57:48|ethminer  Mining on #20393907… : 25.49MH/s [A1+0:R0+0:F0]
  ℹ  23:57:48|ethminer  Solution found; Submitting to http://eth-eu.dwarfpool.com:80/0x55700844689b34718c20defdddf68410e3d6cc93/clevo ...

chfast

ECADD("18b18acfb4c2c30276db5411368e7185b311dd124691610c5d3b74034e093dc9063c909c4720840cb5134cb9f59fa749755796819658d32efc0d288198f3726607c2b7f58a84bd6145f00c9c2bc0bb1a187f20ff2c92963a88019e7c6a014eed06614e20c147e940f2d70da3f74c9a17df361706a4485c742bd6788478fa17d7") -> "2243525c5efd4b9c3d3c45ac0ca3fe4dd85e830a4ce6b65fa1eeaee202839703301d1d33be6da8e509df21cc35964723180eed7532537db9ae5e7d48f195c915"
ECADD("2243525c5efd4b9c3d3c45ac0ca3fe4dd85e830a4ce6b65fa1eeaee202839703301d1d33be6da8e509df21cc35964723180eed7532537db9ae5e7d48f195c91518b18acfb4c2c30276db5411368e7185b311dd124691610c5d3b74034e093dc9063c909c4720840cb5134cb9f59fa749755796819658d32efc0d288198f37266") -> "2bd3e6d0f3b142924f5ca7b49ce5b9d54c4703d7ae5648e61d02268b1a0a9fb721611ce0a6af85915e2f1d70300909ce2e49dfad4a4619c8390cae66cefdb204"
ECMUL("2bd3e6d0f3b142924f5ca7b49ce5b9d54c4703d7ae5648e61d02268b1a0a9fb721611ce0a6af85915e2f1d70300909ce2e49dfad4a4619c8390cae66cefdb20400000000000000000000000000000000000000000000000011138ce750fa15c2") -> "070a8d6a982153cae4

chfast

0xbF5Eaf0B9508c84A1d63553aE304848E3A0D3E71