7.21. cudaExternalMemoryHandleDesc

struct cudaExternalMemoryHandleDesc

External memory handle descriptor.

Public Members

int fd

File descriptor referencing the memory object.

Valid when type is cudaExternalMemoryHandleTypeOpaqueFd

unsigned int flags

Flags must either be zero or cudaExternalMemoryDedicated.

void *handle

Valid NT handle.

Must be NULL if ‘name’ is non-NULL

union cudaExternalMemoryHandleDesc::[anonymous] handle

const void *name

Name of a valid memory object.

Must be NULL if ‘handle’ is non-NULL.

const void *nvSciBufObject

A handle representing NvSciBuf Object.

Valid when type is cudaExternalMemoryHandleTypeNvSciBuf

unsigned int reserved[16]

Must be zero.

unsigned long long size

Size of the memory allocation.

enum cudaExternalMemoryHandleType type

Type of the handle.

struct cudaExternalMemoryHandleDesc::[anonymous]::[anonymous] win32

Win32 handle referencing the semaphore object.

Valid when type is one of the following:

• cudaExternalMemoryHandleTypeOpaqueWin32

• cudaExternalMemoryHandleTypeOpaqueWin32Kmt

• cudaExternalMemoryHandleTypeD3D12Heap

• cudaExternalMemoryHandleTypeD3D12Resource

• cudaExternalMemoryHandleTypeD3D11Resource

• cudaExternalMemoryHandleTypeD3D11ResourceKmt Exactly one of ‘handle’ and ‘name’ must be non-NULL. If type is one of the following: cudaExternalMemoryHandleTypeOpaqueWin32Kmt cudaExternalMemoryHandleTypeD3D11ResourceKmt then ‘name’ must be NULL.