acltdtSetBufDataLen

Applicability

Product	Supported
Atlas A3 training products / Atlas A3 inference products	x
Atlas A2 training products / Atlas A2 inference products	x
Atlas 200I/500 A2 inference products	√
Atlas inference products	x
Atlas training products	x

Description

Sets the length of the valid data in the shared buffer.

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 memory. Then, call acltdtSetBufDataLen to set the length of the valid data in the shared buffer to a value less than that obtained by acltdtGetBufData.

Prototype

aclError acltdtSetBufDataLen(acltdtBuf buf, size_t len)

Parameters

Parameter	Input/Output	Description
buf	Input	Pointer to the shared buffer, which must be obtained by calling acltdtAllocBuf or acltdtCopyBufRef.
len	Input	Length of valid data, in bytes.

Returns

0 on success; else, failure. For details, see aclError.

Restrictions

For the Atlas 200I/500 A2 inference products , this API can be used only in the Ascend RC .