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msgmnb(5) -- maximum number of bytes on a single System V IPC message queue
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The msgmnb tunable specifies the maximum allowable total combined size, in bytes, of all messages queued in a single given System V IPC message queue at any one time. If a msgsnd() system call attempts to exceed the limit imposed by msgmnb, it will block (or return [EAGAIN] if IPC_NOWAIT was specified) until a caller of msgrcv() decreases the number of bytes in the queue sufficiently such that the... |
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