On Friday 11 September 2015 11:54:50 Geert Uytterhoeven wrote:
> To make sure I don't miss any (it seems I missed recvmmsg and sendmmsg for
> the socketcall case, sigh), this is the list of ipc syscalls to implement?
>
> sys_msgget
> sys_msgctl
> sys_msgrcv
> sys_msgsnd
> sys_semget
> sys_semctl
> sys_semtimedop
> sys_shmget
> sys_shmctl
> sys_shmat
> sys_shmdt
>
> sys_semop() seems to be unneeded because it can be implemented using
> sys_semtimedop()?
>
Yes, that list looks right. IPC also includes a set of six sys_mq_*
call, but I believe that everyone already has those as they are not
covered by sys_ipc.
For y2038 compatibility, we will likely add a new variant of
semtimedop that takes a 64-bit timespec. While the argument passed
there is a relative time that will never need to be longer than 68
years, we need to accommodate user space that defines timespec
in a sane way, and converting the argument in libc would be awkward.
Arnd
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