acltdtAllocBuf

The Atlas Training Series Product does not support this API.

Allocates the shared buffer.

After the acltdtAllocBuf API is used to allocate a buffer, the length of the data area is the value of the size parameter. Before valid data is entered, the initial value of the valid data size of the buffer is 0. After valid data is entered into the buffer, set the valid data size by calling acltdtSetBufDataLen.
The buffer allocated by the acltdtAllocBuf call needs to be freed by the acltdtFreeBuf call.
For the Atlas 200/300/500 Inference Product , this API can be used only in the following modes:
Ascend RC Form

aclError acltdtAllocBuf(size_t size, uint32_t type, acltdtBuf *buf)

Parameter	Input/Output	Description
size	Input	Size of the requested data area, in bytes. The value cannot exceed 4 GB.
type	Input	Type of the shared buffer. The options are as follows: typedef enum { ACL_TDT_NORMAL_MEM = 0, ACL_TDT_DVPP_MEM } acltdtAllocBufType;
buf	Output	Pointer to the output shared buffer when the allocation is successful.

Parameter

Input/Output

Description

size

Input

Size of the requested data area, in bytes. The value cannot exceed 4 GB.

type

Input

Type of the shared buffer. The options are as follows:

typedef enum {
    ACL_TDT_NORMAL_MEM = 0,
    ACL_TDT_DVPP_MEM
} acltdtAllocBufType;

buf

Output

Pointer to the output shared buffer when the allocation is successful.

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