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acltdtGetBufData

The Atlas Training Series Product does not support this API.

Description

Obtains the data area pointer to and length of the shared buffer. You can use this pointer to fill in data.

Restrictions

  • API call sequence: Call acltdtAllocBuf or acltdtCopyBufRef to allocate the shared buffer, call acltdtGetBufData to obtain the memory pointer and length of the shared buffer, and fill valid data in the buffer. Then, call acltdtSetBufDataLen to set the length of the valid data in the shared buffer to a value less than that obtained by acltdtGetBufData.
  • For the Atlas 200/300/500 Inference Product , this API can be used only in the following modes:

    Ascend RC Form

Prototype

aclError acltdtGetBufData(const acltdtBuf buf, void **dataPtr, size_t *size)

Parameters

Parameter

Input/Output

Description

buf

Input

Shared buffer pointer, which must be obtained by calling acltdtAllocBuf.

dataPtr

Output

Pointer to the data area (address on device).

size

Output

Length of the data area, in bytes.

Returns

The value 0 indicates success, and other values indicate failure. For details, see aclError.

See Also

For details about the API call sequence and example, see Shared Buffer Management.

Parent topic: Shared Buffer Management