IPCGET_PUBLIC(9) Kernel IPC facilities IPCGET_PUBLIC(9)NAME
ipcget_public - get an ipc object or create a new one
int ipcget_public(struct ipc_namespace * ns, struct ipc_ids * ids, struct ipc_ops * ops, struct ipc_params * params);
IPC identifer set
the actual creation routine to call
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.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 IPCGET_PUBLIC(9)
I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX.
Ok onto business, my questions are-:
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