new
$sem
= new IPC::Semaphore(key
,nsems
,flags
)
Creates a new semaphore set associated with
key
and containing
nsems
semaphores. Uses
flags
to set the permissions. Creates
the new set if the following are true:
key
is equal to
IPC_PRIVATE.
key
doesn’t already have an
associated semaphore identifier, and FLAGS & IPC_CREAT
is
true.
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