Add Signals class.

src/base/kernel/Signals.cpp

@@ -0,0 +1,63 @@
+/* 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 2017-2018 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
+ * Copyright 2018      SChernykh   <https://github.com/SChernykh>
+ * Copyright 2016-2018 XMRig       <https://github.com/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 <uv.h>
+
+
+#include "base/kernel/interfaces/ISignalListener.h"
+#include "base/kernel/Signals.h"
+#include "base/tools/Handle.h"
+
+
+static const int signums[xmrig::Signals::kSignalsCount] = { SIGHUP, SIGINT, SIGTERM };
+
+
+xmrig::Signals::Signals(ISignalListener *listener)
+    : m_listener(listener)
+{
+    for (size_t i = 0; i < kSignalsCount; ++i) {
+        uv_signal_t *signal = new uv_signal_t;
+        signal->data        = this;
+
+        m_signals[i] = signal;
+
+        uv_signal_init(uv_default_loop(), signal);
+        uv_signal_start(signal, xmrig::Signals::onSignal, signums[i]);
+    }
+}
+
+
+xmrig::Signals::~Signals()
+{
+    for (size_t i = 0; i < kSignalsCount; ++i) {
+        Handle::close(m_signals[i]);
+    }
+}
+
+
+void xmrig::Signals::onSignal(uv_signal_t *handle, int signum)
+{
+    static_cast<xmrig::Signals *>(handle->data)->m_listener->onSignal(signum);
+}

src/base/kernel/Signals.h

@@ -0,0 +1,62 @@
+/* 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 2017-2018 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
+ * Copyright 2018-2019 SChernykh   <https://github.com/SChernykh>
+ * Copyright 2016-2019 XMRig       <https://github.com/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/>.
+ */
+
+#ifndef XMRIG_SIGNALS_H
+#define XMRIG_SIGNALS_H
+
+
+#include <stddef.h>
+
+
+typedef struct uv_signal_s uv_signal_t;
+
+
+namespace xmrig {
+
+
+class ISignalListener;
+
+
+class Signals
+{
+public:
+    constexpr static const size_t kSignalsCount = 3;
+
+    Signals(ISignalListener *listener);
+    ~Signals();
+
+private:
+    void close(int signum);
+
+    static void onSignal(uv_signal_t *handle, int signum);
+
+    ISignalListener *m_listener;
+    uv_signal_t *m_signals[kSignalsCount];
+};
+
+
+} /* namespace xmrig */
+
+
+#endif /* XMRIG_SIGNALS_H */

src/base/kernel/interfaces/ISignalListener.h

@@ -0,0 +1,47 @@
+/* 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 2017-2018 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
+ * Copyright 2018-2019 SChernykh   <https://github.com/SChernykh>
+ * Copyright 2016-2019 XMRig       <https://github.com/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/>.
+ */
+
+#ifndef XMRIG_ISIGNALLISTENER_H
+#define XMRIG_ISIGNALLISTENER_H
+
+
+namespace xmrig {
+
+
+class String;
+
+
+class ISignalListener
+{
+public:
+    virtual ~ISignalListener() = default;
+
+    virtual void onSignal(int signum) = 0;
+};
+
+
+} /* namespace xmrig */
+
+
+#endif // XMRIG_ISIGNALLISTENER_H