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 | Create token from filename. | |
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 | Perform various operations on a message queue. | |
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 | Return message queue ID, possibly creating the queue. | |
| 
 | Retrieve a message from the queue. | |
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 | Send a message to the message queue. | |
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 | Perform various control operations on a semaphore set. | |
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 | Return the ID of a semaphore set, possibly creating the set. | |
| 
 | Perform semaphore operation. | |
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 | Perform semaphore operation using timeout. | |
| 
 | Attach a shared memory block. | |
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 | Perform control operations on a shared memory block. | |
| 
 | Detach shared memory block. | |
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 | Return the ID of a shared memory block, possibly creating it. |