msgsys:msginfo_msgtql

Description

Maximum number of messages that can be created. If a msgsnd call attempts to exceed this limit, the request is deferred until a message header is available. Or, if the request has set the IPC_NOWAIT flag, the request fails with the error EAGAIN.

Data Type

Signed integer

Default

40

Range

0 to MAXINT

Dynamic?

No. Loaded into msgtql field of msginfo structure.

Validation

None

When to Change

When msgsnd() calls block or return with error of EGAIN, or at the recommendation of a software vendor.

Commitment Level

Unstable