Add DoubleWorker class.

src/workers/DoubleWorker.cpp

@@ -0,0 +1,97 @@
+/* XMRig
+ * Copyright 2010      Jeff Garzik <jgarzik@pobox.com>
+ * Copyright 2012-2014 pooler      <pooler@litecoinpool.org>
+ * Copyright 2014      Lucas Jones <https://github.com/lucasjones>
+ * Copyright 2014-2016 Wolf9466    <https://github.com/OhGodAPet>
+ * Copyright 2016      Jay D Dee   <jayddee246@gmail.com>
+ * Copyright 2016-2017 XMRig       <support@xmrig.com>
+ *
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include <thread>
+
+
+#include "crypto/CryptoNight.h"
+#include "workers/DoubleWorker.h"
+#include "workers/Workers.h"
+
+
+DoubleWorker::DoubleWorker(Handle *handle)
+    : Worker(handle),
+    m_nonce1(0),
+    m_nonce2(0)
+{
+}
+
+
+void DoubleWorker::start()
+{
+    while (true) {
+        if (Workers::isPaused()) {
+            do {
+                std::this_thread::sleep_for(std::chrono::milliseconds(200));
+            }
+            while (Workers::isPaused());
+
+            consumeJob();
+        }
+
+        while (!Workers::isOutdated(m_sequence)) {
+            if ((m_count & 0xF) == 0) {
+                storeStats();
+            }
+
+            m_count += 2;
+            *Job::nonce(m_blob)                = ++m_nonce1;
+            *Job::nonce(m_blob + m_job.size()) = ++m_nonce2;
+
+            CryptoNight::hash(m_blob, m_job.size(), m_hash, m_ctx);
+
+            if (*reinterpret_cast<uint64_t*>(m_hash + 24) < m_job.target()) {
+                Workers::submit(JobResult(m_job.poolId(), m_job.id(), m_nonce1, m_hash));
+            }
+
+            if (*reinterpret_cast<uint64_t*>(m_hash + 32 + 24) < m_job.target()) {
+                Workers::submit(JobResult(m_job.poolId(), m_job.id(), m_nonce2, m_hash + 32));
+            }
+
+            std::this_thread::yield();
+        }
+
+        consumeJob();
+    }
+}
+
+
+
+void DoubleWorker::consumeJob()
+{
+    m_job = Workers::job();
+    m_sequence = Workers::sequence();
+
+    memcpy(m_blob,                m_job.blob(), m_job.size());
+    memcpy(m_blob + m_job.size(), m_job.blob(), m_job.size());
+
+    if (m_nicehash) {
+        m_nonce1 = (*Job::nonce(m_blob)                & 0xff000000U) + (0xffffffU / (m_threads * 2) * m_id);
+        m_nonce2 = (*Job::nonce(m_blob + m_job.size()) & 0xff000000U) + (0xffffffU / (m_threads * 2) * (m_id + m_threads));
+    }
+    else {
+        m_nonce1 = 0xffffffffU / (m_threads * 2) * m_id;
+        m_nonce2 = 0xffffffffU / (m_threads * 2) * (m_id + m_threads);
+    }
+}