//****************************************************
// Method: deallocatePartition
//
// Purpose: Deallocates a partition in the given array
// of partitions at the specified address.
// Returns 0 if successful, or -1 on error.
//****************************************************
protected static int deallocatePartition(int atAddress, Partition[] inPartitions)
{
Partition partition = MyFixedPartitionMemoryManager.findPartition(inPartitions, atAddress);
if (partition != null)
{
return partition.deallocate();
}
return -1;
}
//****************************************************
// Method: findPartition
//
// Purpose: Finds a partition that contains the given memory address
// in the specified array of Partitions. Returns a Partition
// object that contains the memory address, and null if no parition
// is found or if there is an error.
//****************************************************
protected static Partition findPartition(Partition[] inPartitions, int byAddress)
{
foreach (Partition partition in inPartitions)
{
if (partition.containsAddress(byAddress))
{
return partition;
}
}
return null;
}
//****************************************************
// Method: addressOfNextAvailablePartition
//
// Purpose: Gets the address of the next available partition
// in an array of partitions that can hold the specified size.
// Returns the absolute address of the beginning of the partition,
// or -1 on error.
//****************************************************
protected static int addressOfNextAvailablePartition(int forSize, Partition[] inPartitions)
{
foreach (Partition partition in inPartitions)
{
if (partition.canAllocate(forSize))
{
return partition.AbsoluteAddress;
}
}
return -1;
}