HP-UX Reference (11i v1 05/09) - 2 System Calls (vol 5)

shmget(2) shmget(2)

[EINVAL] A shared memory identiﬁer exists for key but is in 64-bit address space and the pro-

cess performing the request has been compiled as a 32-bit executable. In order to

avoid receiving this error, both

IPC_SHARE32 and IPC_CREAT

must be set in

shmﬂg by the 64-bit processes upon segment creation.

[EACCES] A shared memory identiﬁer exists for key but operation permission (see glossary (9)) as

speciﬁed by the low-order 9 bits of shmﬂg would not be granted.

[EINVAL] A shared memory identiﬁer exists for key but the size of the segment associated with

it is less than size and size is not equal to zero.

[ENOENT] A shared memory identiﬁer does not exist for key and (shmﬂg &

IPC_CREAT)is

‘‘false’’.

[ENOSPC] A shared memory identiﬁer is to be created but the system-imposed limit on the max-

imum number of allowed shared memory identiﬁers system wide would be exceeded.

[ENOMEM] A shared memory identiﬁer and associated shared memory segment are to be created,

but the amount of available physical memory is not sufﬁcient to ﬁll the request.

[EEXIST] A shared memory identiﬁer exists for key but ( (shmﬂg &

IPC_CREAT)&&(shmﬂg &

IPC_EXCL)) is ‘‘true’’.