Arguments

 

semaphore-id

   OpenVMS usage identifier
   type          longword (unsigned)
   access        write only
   mechanism     by reference
   Identifier of the semaphore. The semaphore-id argument is the
   address of an unsigned longword containing the identifier.
   Semaphore-id must be used in other calls to identify the
   semaphore.
 

semaphore-name

   OpenVMS usage char_string
   type          character string
   access        read only
   mechanism     by descriptor
   Name of the semaphore. The semaphore-name argument is the address
   of a descriptor pointing to a character string containing
   the semaphore name. The name of the semaphore is entirely
   arbitrary. If you do not specify a value for semaphore-name,
   or if you specify 0, a new unnamed semaphore is created. An
   arbitrary number of unnamed semaphores may be created by a given
   application.
 

semaphore-maximum

   OpenVMS usage word_signed
   type          word (signed)
   access        read only
   mechanism     by reference
   Maximum value of the semaphore. The semaphore-maximum argument
   is the address of a signed word containing the maximum value.
   This value must be nonnegative. If you do not supply a value for
   semaphore-maximum, a default value of 1 is used, thereby making
   it a binary semaphore.
 

semaphore-initial

   OpenVMS usage word_signed
   type          word (signed)
   access        read only
   mechanism     by reference
   Initial value of the semaphore. The semaphore-initial argument is
   the address of a signed word containing the initial value. This
   value must be less than or equal to the semaphore-maximum value.
   If you do not supply a value for semaphore-initial, a default
   value equal to semaphore-maximum is used.