Added RX switch tester

misc/build.bat

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+@echo off
+call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvars64.bat"
+rmdir /S /Q build
+del %~dp0\xmrig-%1-win64.zip
+mkdir build &&^
+cd build &&^
+git clone https://github.com/MoneroOcean/xmrig.git &&^
+git clone https://github.com/xmrig/xmrig-deps.git &&^
+mkdir xmrig\build &&^
+cd xmrig\build &&^
+git checkout %1 &&^
+cmake .. -G "Visual Studio 15 2017 Win64" -DXMRIG_DEPS=%~dp0\build\xmrig-deps\msvc2017\x64 &&^
+msbuild /p:Configuration=Release xmrig.sln &&^
+cd Release &&^
+copy ..\..\src\config.json . &&^
+7z a -tzip -mx %~dp0\xmrig-%1-win64.zip xmrig.exe config.json &&^
+cd %~dp0 &&^
+rmdir /S /Q build

misc/build_rh6.sh

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+#!/bin/bash
+yum update -y
+yum upgrade -y
+yum install -y git
+yum install -y cmake make openssl-devel libmicrohttpd-devel centos-release-scl-rh
+yum install -y --nogpgcheck devtoolset-6-gcc devtoolset-6-binutils devtoolset-6-gcc-c++
+rpm -i https://github.com/sipcapture/captagent/raw/master/dependency/centos/6/libuv-1.8.0-1.el6.x86_64.rpm
+rpm -i https://github.com/sipcapture/captagent/raw/master/dependency/centos/6/libuv-devel-1.8.0-1.el6.x86_64.rpm
+rm -rf build xmrig-$1-lin64.tar.gz
+mkdir build &&\
+cd build &&\
+git clone https://github.com/MoneroOcean/xmrig.git &&\
+cd xmrig &&\
+git checkout $1 &&\
+scl enable devtoolset-6 "cmake . -DWITH_TLS=OFF -DWITH_HTTPD=OFF" &&\
+scl enable devtoolset-6 "make" &&\
+cp src/config.json . &&\
+mv xmrig-notls xmrig &&\
+tar cfz ../../xmrig-$1-lin64.tar.gz xmrig config.json &&\
+cd ../.. &&\
+rm -rf build &&\
+echo OK

misc/switch_test.js

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+#!/usr/bin/env node
+
+// Miner Tester: testing miner algo switch stability
+
+"use strict";
+
+// *****************************************************************************
+// *** DEPENDECIES                                                           ***
+// *****************************************************************************
+
+const net = require('net');
+
+// *****************************************************************************
+// *** CONSTS                                                                ***
+// *****************************************************************************
+
+const algos = [ "rx/wow", "rx/loki" ];
+
+// *****************************************************************************
+// *** WORKING STATE                                                         ***
+// *****************************************************************************
+
+let curr_miner_socket = null;
+
+// *****************************************************************************
+// *** FUNCTIONS                                                             ***
+// *****************************************************************************
+
+// *** Console/log output
+
+function log(msg) {
+  console.log(">>> " + msg);
+}
+
+function err(msg) {
+  console.error("!!! " + msg);
+}
+
+// *** Miner socket processing
+
+const test_blob_str = "7f7ffeeaa0db054f15eca39c843cb82c15e5c5a7743e06536cb541d4e96e90ffd31120b7703aa90000000076a6f6e34a9977c982629d8fe6c8b45024cafca109eef92198784891e0df41bc03";
+
+let miner_server = net.createServer(function (miner_socket) {
+  if (curr_miner_socket) {
+    err("Miner server on localhost:3333 port is already connected (please make sure you do not have other miner running)");
+    return;
+  }
+  log("Miner server on localhost:3333 port connected from " + miner_socket.remoteAddress);
+
+  let miner_data_buff = "";
+
+  miner_socket.on('data', function (msg) {
+    miner_data_buff += msg;
+    if (miner_data_buff.indexOf('\n') === -1) return;
+    let messages = miner_data_buff.split('\n');
+    let incomplete_line = miner_data_buff.slice(-1) === '\n' ? '' : messages.pop();
+    for (let i = 0; i < messages.length; i++) {
+      let message = messages[i];
+      if (message.trim() === '') continue;
+      let json;
+      try {
+        json = JSON.parse(message);
+      } catch (e) {
+        err("Can't parse message from the miner: " + message);
+        continue;
+      }
+      const is_keepalived = "method" in json && json.method === "keepalived";
+      if ("method" in json && json.method === "login") {
+        miner_socket.write(
+          '{"id":1,"jsonrpc":"2.0","error":null,"result":{"id":"benchmark","job":{"blob":"' + test_blob_str +
+          '","algo":"cn/1","job_id":"benchmark1","target":"10000000","seed_hash":"0000000000000000000000000000000000000000000000000000000000000001","id":"benchmark"},"status":"OK"}}\n'
+        );
+        curr_miner_socket = miner_socket;
+      }
+    }
+    miner_data_buff = incomplete_line;
+  });
+  miner_socket.on('end', function() {
+    log("Miner socket was closed");
+    curr_miner_socket = null;
+  });
+  miner_socket.on('error', function() {
+    err("Miner socket error");
+    miner_socket.destroy();
+    curr_miner_socket = null;
+  });
+});
+
+let job_num = 1;
+function change_algo() {
+  if (curr_miner_socket) {
+    const algo = algos[Math.floor(Math.random() * algos.length)];
+    log("Switching to " + algo);
+    curr_miner_socket.write(
+      '{"jsonrpc":"2.0","method":"job","params":{"blob":"' + test_blob_str + '","algo":"' + algo +
+      '","job_id":"benchmark' + ++job_num + '","height":0,"seed_hash":"0000000000000000000000000000000000000000000000000000000000000000","target":"10000000","id":"benchmark"}}\n'
+    );
+  }
+  const sleep = Math.floor(Math.random() * 5);
+  log("Waiting " + sleep + "s");
+  setTimeout(change_algo, sleep * 1000);
+}
+
+miner_server.listen(3333, "localhost", function() {
+  log("Local miner server on localhost:3333 port started");
+  change_algo();
+});