Added CudaLib stub.

src/backend/cuda/wrappers/CudaLib.cpp

@@ -0,0 +1,174 @@
+/* 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/>.
+ */
+
+
+#include <stdexcept>
+#include <uv.h>
+
+
+#include "backend/cuda/wrappers/CudaLib.h"
+#include "base/io/log/Log.h"
+
+
+namespace xmrig {
+
+
+enum Version : uint32_t
+{
+    ApiVersion,
+    DriverVersion,
+    RuntimeVersion
+};
+
+
+static uv_lib_t cudaLib;
+
+
+static const char *kAlloc                               = "alloc";
+static const char *kDeviceCount                         = "deviceCount";
+static const char *kPluginVersion                       = "pluginVersion";
+static const char *kRelease                             = "release";
+static const char *kSymbolNotFound                      = "symbol not found";
+static const char *kVersion                             = "version";
+
+
+using alloc_t                                           = nvid_ctx * (*)(size_t, int, int, int, int, int);
+using deviceCount_t                                     = size_t (*)();
+using pluginVersion_t                                   = const char * (*)();
+using release_t                                         = void (*)(nvid_ctx *);
+using version_t                                         = uint32_t (*)(Version);
+
+
+static alloc_t pAlloc                                   = nullptr;
+static deviceCount_t pDeviceCount                       = nullptr;
+static pluginVersion_t pPluginVersion                   = nullptr;
+static release_t pRelease                               = nullptr;
+static version_t pVersion                               = nullptr;
+
+
+#define DLSYM(x) if (uv_dlsym(&cudaLib, k##x, reinterpret_cast<void**>(&p##x)) == -1) { throw std::runtime_error(kSymbolNotFound); }
+
+
+bool CudaLib::m_initialized = false;
+bool CudaLib::m_ready       = false;
+String CudaLib::m_loader;
+
+
+} // namespace xmrig
+
+
+bool xmrig::CudaLib::init(const char *fileName)
+{
+    if (!m_initialized) {
+        m_loader      = fileName == nullptr ? defaultLoader() : fileName;
+        m_ready       = uv_dlopen(m_loader, &cudaLib) == 0 && load();
+        m_initialized = true;
+    }
+
+    return m_ready;
+}
+
+
+const char *xmrig::CudaLib::lastError()
+{
+    return uv_dlerror(&cudaLib);
+}
+
+
+void xmrig::CudaLib::close()
+{
+    uv_dlclose(&cudaLib);
+}
+
+
+const char *xmrig::CudaLib::pluginVersion() noexcept
+{
+    return pPluginVersion();
+}
+
+
+nvid_ctx *xmrig::CudaLib::alloc(size_t id, int blocks, int threads, int bfactor, int bsleep, const Algorithm &algorithm) noexcept
+{
+    return pAlloc(id, blocks, threads, bfactor, bsleep, algorithm);
+}
+
+
+size_t xmrig::CudaLib::deviceCount() noexcept
+{
+    return pDeviceCount();
+}
+
+
+uint32_t xmrig::CudaLib::driverVersion() noexcept
+{
+    return pVersion(DriverVersion);
+}
+
+
+uint32_t xmrig::CudaLib::runtimeVersion() noexcept
+{
+    return pVersion(RuntimeVersion);
+}
+
+
+void xmrig::CudaLib::release(nvid_ctx *ctx) noexcept
+{
+    pRelease(ctx);
+}
+
+
+bool xmrig::CudaLib::load()
+{
+    if (uv_dlsym(&cudaLib, kVersion, reinterpret_cast<void**>(&pVersion)) == -1) {
+        return false;
+    }
+
+    if (pVersion(ApiVersion) != 1u) {
+        return false;
+    }
+
+    try {
+        DLSYM(Alloc);
+        DLSYM(DeviceCount);
+        DLSYM(PluginVersion);
+        DLSYM(Release);
+        DLSYM(Version);
+    } catch (std::exception &ex) {
+        return false;
+    }
+
+    return true;
+}
+
+
+const char *xmrig::CudaLib::defaultLoader()
+{
+#   if defined(__APPLE__)
+    return "/System/Library/Frameworks/OpenCL.framework/OpenCL"; // FIXME
+#   elif defined(_WIN32)
+    return "xmrig-cuda.dll";
+#   else
+    return "xmrig-cuda.so";
+#   endif
+}