Obtaining local lock information

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• userInteraction_get_lock_inf.c

globMyId : id of the coordinator.
globLastIndex : An integer variable that indicates the total number of coordinators present in the ARC ring.
localLockList : It is the global variable that contains the list of local locks present with the coordinator. Some of the locks in the list may be allotted others may be free.

The file contains a single function LockArr* GetLockInf(), that returns the list of free locks that is present locally with the coordinator. This is the helper function and is invoked locally.

The steps carried out in the function are:

• Initialize a list lockList, that will contain the list of free locks picked up from localLockList. This list is returned to the function that invoked this function.
• Calculate magic number and store it in variable num.
• Sequentially go through the entire list of locks present in localLockList.
• If the status of the lock is free, put the lock in the lockList. Along with the lock, also put num, that contains the magic number for the node.
• Return lockList.