Cpu device

platform/CMakeLists.txt

@@ -8,6 +8,8 @@ add_roughpy_component(Platform
         src/configuration.cpp
         src/threading/openmp_threading.cpp
         src/device.cpp
+        src/cpu_device/CPUDevice.cpp
+        src/cpu_device/CPUDevice.h
     PUBLIC_HEADERS
         include/roughpy/platform.h
         include/roughpy/platform/filesystem.h

platform/include/roughpy/platform/device.h

@@ -102,19 +102,19 @@ class RPY_EXPORT DeviceHandle {
     const DeviceInfo& info() const noexcept { return m_info; }
 
     RPY_NO_DISCARD
-    virtual const fs::path& runtime_library() const noexcept = 0;
+    virtual optional<fs::path> runtime_library() const noexcept = 0;
 
 
-    virtual void launch_kernel(const void* kernel,
-                               const void* launch_config,
-                               void** args
-                               ) = 0;
+//    virtual void launch_kernel(const void* kernel,
+//                               const void* launch_config,
+//                               void** args
+//                               ) = 0;
 
 
 };
 
 
-
+std::shared_ptr<DeviceHandle> get_cpu_device_handle() noexcept;
 
 
 

platform/src/cpu_device/CPUDevice.cpp

@@ -0,0 +1,11 @@
+//
+// Created by sam on 18/08/23.
+//
+
+#include "CPUDevice.h"
+
+std::optional<std::filesystem::path>
+rpy::platform::CPUDevice::runtime_library() const noexcept
+{
+    return {};
+}

platform/src/cpu_device/CPUDevice.h

@@ -0,0 +1,28 @@
+//
+// Created by sam on 18/08/23.
+//
+
+#ifndef ROUGHPY_CPUDEVICE_H
+#define ROUGHPY_CPUDEVICE_H
+
+#include <roughpy/platform/device.h>
+
+namespace rpy {
+namespace platform {
+
+class CPUDevice : public DeviceHandle
+{
+
+public:
+
+    CPUDevice() : DeviceHandle(DeviceType::CPU, 0) {}
+
+    RPY_NO_DISCARD
+    optional<fs::path> runtime_library() const noexcept override;
+
+};
+
+}// namespace platform
+}// namespace rpy
+
+#endif// ROUGHPY_CPUDEVICE_H

platform/src/device.cpp

@@ -4,10 +4,15 @@
 
 #include <roughpy/platform/device.h>
 
+#include "cpu_device/CPUDevice.h"
 
 using namespace rpy;
 using namespace rpy::platform;
 
-
+std::shared_ptr<DeviceHandle> get_cpu_device_handle() noexcept
+{
+    static std::shared_ptr<DeviceHandle> cpu_handle(new CPUDevice);
+    return cpu_handle;
+}
 
 DeviceHandle::~DeviceHandle() = default;