cudaEvent_tとcudaStream_tのラッパを追加

[cuda.git] / libutils / cuda / Event.h

diff --git a/libutils/cuda/Event.h b/libutils/cuda/Event.h
new file mode 100644 (file)
index 0000000..a1b2b14
--- /dev/null
+++ b/libutils/cuda/Event.h
@@ -0,0 +1,97 @@
+/*
+       Copyright (C) 2012, 2013  fmaj7b5.info
+
+       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 2 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 FM7b5_CUDA_EVENT_H
+#define FM7b5_CUDA_EVENT_H
+
+#include <stdexcept>
+#include <cuda_runtime.h>
+
+class Event
+{
+public:
+       Event();
+       Event(unsigned int flags);
+       ~Event();
+       operator cudaEvent_t();
+
+       cudaError_t query() const;
+       cudaError_t record(cudaStream_t stream = (cudaStream_t)0) const;
+       cudaError_t synchronize() const;
+
+protected:
+       cudaEvent_t m_event;
+};
+
+
+Event::Event()
+{
+       cudaError_t status;
+
+       status = cudaEventCreate(&m_event);
+
+       if (status != cudaSuccess) {
+               throw std::runtime_error(cudaGetErrorString(status));
+       }
+}
+
+Event::Event(unsigned int flags)
+{
+       cudaError_t status;
+
+       status = cudaEventCreateWithFlags(&m_event, flags);
+
+       if (status != cudaSuccess) {
+               throw std::runtime_error(cudaGetErrorString(status));
+       }
+}
+
+Event::~Event()
+{
+       cudaError_t status;
+
+       status = cudaEventDestroy(m_event);
+
+       if (status != cudaSuccess) {
+               throw std::runtime_error(cudaGetErrorString(status));
+       }
+}
+
+Event::operator cudaEvent_t()
+{
+       return m_event;
+}
+
+cudaError_t
+Event::query() const
+{
+       return cudaEventQuery(m_event);
+}
+
+cudaError_t
+Event::record(cudaStream_t stream) const
+{
+       return cudaEventRecord(m_event, stream);
+}
+
+cudaError_t
+Event::synchronize() const
+{
+       return cudaEventSynchronize(m_event);
+}
+
+#endif /* FM7b5_CUDA_EVENT_H */