Get an ipc object or create a new one
int ipcget_public(struct ipc_namespace * ns, struct ipc_ids * ids, const struct ipc_ops * ops, struct ipc_params * params);
ns
ipc namespace
ids
ipc identifer set
ops
the actual creation routine to call
params
its parameters
This routine is called by sys_msgget, sys_semget and sys_shmget when the key is not IPC_PRIVATE. It adds a new entry if the key is not found and does some permission / security checkings if the key is found.
On success, the ipc id is returned.