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#pragma once
#include <c10/core/Device.h>
namespace c10 {
using CopyBytesFunction = void (*)(
size_t nbytes,
const void* src,
Device src_device,
void* dst,
Device dst_device);
struct C10_API _CopyBytesFunctionRegisterer {
_CopyBytesFunctionRegisterer(
DeviceType from,
DeviceType to,
CopyBytesFunction func_sync,
CopyBytesFunction func_async = nullptr);
};
#define REGISTER_COPY_BYTES_FUNCTION(from, to, ...) \
namespace { \
static _CopyBytesFunctionRegisterer C10_ANONYMOUS_VARIABLE( \
g_copy_function)(from, to, __VA_ARGS__); \
}
/*
* WARNING: Implementations for this function are currently registered from
* ATen and caffe2, not yet from c10. Don't use this if not either ATen
* or caffe2 is present as well.
* We can't move them yet, because the CUDA implementations aren't unified yet
* between ATen and caffe2.
* We're planning to move the implementations into c10/backend/xxx
* to make c10 self contained again.
*/
C10_API void CopyBytes(
size_t nbytes,
const void* src,
Device src_device,
void* dst,
Device dst_device,
bool async);
} // namespace c10
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