central (1)		- the central task control server.
tcaAchievementOf (3)	- Returns a reference to the achievement interval of a	message. 
tcaAddChildReference (3)    - Creates and returns a reference to a message, adding  a new task tree node. 
tcaAddConstraint (3)	- Add data as new constraint information. 
tcaAddHndToResource (3) - Add a handler to a resource. 
tcaCancelReservation (3)    - Cancels a Resource Reservation 
tcaClose (3)		- Notifies central to close central connections to this module. 
tcaConnectModule (3)	- Opens a connection to the central server. 
tcaCreateReference (3)	- Creates and returns a reference to a message. 
tcaDisplayTaskTree (3)	- Display all or part of a task tree. 
tcaEndOf (3)		- Returns a reference to the ending time-point of the interval. 
tcaExecuteCommand (3)	- Execute a Command. 
tcaExecuteCommandWithConstraints (3)	- Execute a command following the specified temporal constraints. 
tcaExpandGoal (3)	- Expand a Goal. 
tcaExpandGoalWithConstraints (3)    - Expand the current node using the specified temporal constraints. 
tcaFailure (3)		- Respond to a goal or command with a Failure. 
tcaFindAnteReference (3)    - Search and return a reference to an ancestor node by  message name. 
tcaFindFailedReference (3)  - Return a reference to a node whose message  generated an exception class message node next. 
tcaFindNextChild (3)	- Given a node reference return a reference to the  achievement temporally next child. 
tcaFindParentReference (3)  - Return a reference to the parent of a task tree node. 
tcaFindPreviousChild (3)    - Given a node reference return a reference to the	achievement temporaly previous child. 
tcaFindTopLevelReference (3)	- Return a reference to the highest parent node in  the task tree for a given node. 
tcaFireDemon (3)	- Requests a demon monitor's action message be sent. 
tcaHandleMessage (3)	- Handle a single message from the central server and return. 
tcaHandlingOf (3)	- Returns a reference to the handling interval of a message. 
tcaIntervalMonitor (3)	- Initiates an Interval Monitor. 
tcaIsSameReference (3)	- Test if two task tree nodes references identify the same  task tree node. 
tcaKillSubTaskTree (3)	- Kill the descendants of a task tree starting at a  particular node. 
tcaKillTaskTree (3)	- Kill a task tree starting at a particular node. 
tcaLockModResource (3)	- Locks a resource on a specified module. 
tcaLockResource (3)	- Locks a resource so that no messages are processed by	 that resource. 
tcaModuleListen (3)	- Loop for processing central server message requests. 
tcaNullReply (3)	- Respond to a query by sending no information. 
tcaPlanningOf (3)	- Returns a reference to the planning interval of a message. 
tcaPointMonitor (3)	- Initiates a Point Monitor. 
tcaPointMonitorWithConstraints (3)  - Initiates a Point Monitor with temporal constraints. 
tcaQuery (3)		- Send a message and data to the central process and wait for a reply. 
tcaRegisterDemonMonitor (3) - Register a Demon Monitor. 
tcaRegisterHandler (3)	- Describes a message handler to the central server. 
tcaRegisterNamedFormatter (3)	- Assigns a name to a format string. 
tcaRegisterPointMonitor (3) - Register a Point Monitor. 
tcaRegisterPollingMonitor (3)	- Register a Polling Monitor. 
tcaRegisterResource (3) - Creates a resource and initializes the size of the  attending set. 
tcaReply (3)		- Respond to a query with some information. 
tcaReserveModResource (3)   - Reserves a resource on a specified module. 
tcaReserveResource (3)	- Reserves the named resource. 
tcaRootNodeGlobal (3)	- Reference top of the task tree. 
tcaServerMachine (3)	- Returns the string value of the environment  variable CENTRALHOST. 
tcaStartOf (3)		- Returns a reference to the starting time-point of the interval. 
tcaSuccess (3)		- Respond to a goal or command with a Success. 
tcaTplConstrain (3)	- Assert the temporal relationship between the two time-points. 
tcaUnlockResource (3)	- Removes a resource Lock. 
tcaWaitUntilReady (3)	- Pauses the module until released by the central server. 
