aclrtGetBufDataLen

Description

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

This API is effective only after aclrtSetBufDataLen is called to set the length of the valid data in the shared buffer. Otherwise, the length obtained by calling this API is 0.

Prototype

aclError aclrtGetBufDataLen(aclrtMbuf buf, size_t *len)

Parameters

Parameter	Input/Output	Description
buf	Input	Shared buffer, which must be obtained by calling aclrtAllocBuf or aclrtCopyBufRef.
len	Output	Length of valid data, in bytes.

Returns

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

Parent topic: Shared Buffer Management (Reserved, Not Supported Currently)