Function: ipc_mem_set_import_pid

Applicable Products

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

Description

Sets the process trustlist of the IPC shared memory. Only the processes in the trustlist can use the key exported by the acl.rt.ipc_mem_get_export_key API.

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

Prototype

C Prototype

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

Python Function

ret = acl.rt.ipc_mem_set_import_pid(key, pid)

Parameters

Parameter	Description
key	Str, shared memory key.
pids	List, array for storing trustlisted process IDs. You can call acl.rt.device_get_bare_tgid to obtain the process ID. In the Docker scenario, the process ID on the physical machine is obtained. In the non-Docker scenario, the process ID is obtained.

Parameter

Description

key

Str, shared memory key.

pids

List, array for storing trustlisted process IDs.

You can call acl.rt.device_get_bare_tgid to obtain the process ID. In the Docker scenario, the process ID on the physical machine is obtained. In the non-Docker scenario, the process ID is obtained.

Return Values

Return Value	Description
ret	Int, 0 on success; else failure.

Parent topic: Memory Sharing Between IPC Processes