aclrtIpcMemSetImportPid

Applicable Products

Product	Supported
Ascend 950PR/Ascend 950DT	√
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas 200I/500 A2 inference products	☓
Atlas inference products	√
Atlas training products	√

Function

Sets the trustlist of processes that can share memory through IPC.

This API must work with other APIs to implement memory sharing. For details, see the description of aclrtIpcMemGetExportKey.

Prototype

aclError aclrtIpcMemSetImportPid(const char *key, int32_t *pid, size_t num)

Parameters

Parameter	Input/Output	Description
key	Input	Memory key obtained by calling aclrtIpcMemGetExportKey.
pid	Input	Array for storing trustlisted process IDs. You can call aclrtDeviceGetBareTgid to obtain the process ID. In the Docker scenario, the process ID on the physical machine is returned. In non-Docker scenarios, the process ID is returned.
num	Input	Number of processes in the trustlist. The value must be the same as the size of the pid array.

Parameter

Input/Output

Description

key

Input

Memory key obtained by calling aclrtIpcMemGetExportKey.

pid

Input

Array for storing trustlisted process IDs.

You can call aclrtDeviceGetBareTgid to obtain the process ID. In the Docker scenario, the process ID on the physical machine is returned. In non-Docker scenarios, the process ID is returned.

num

Input

Number of processes in the trustlist. The value must be the same as the size of the pid array.

Returns

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

Parent topic: Memory Sharing Between IPC Processes