Пример #1
0
  /**
   * Moves a process component to backing store
   *
   * @param memory partitions linked list (memory)
   * @param swap processes into backing store linked list (swap)
   * @param partition memory partition allocating process component to swap
   * @throws SoSimException partition does not allocate any process' component
   */
  public void swapOutProcess(
      List<MemPartition> memory, List<ProcessMemUnit> swap, MemPartition partition)
      throws SoSimException {
    if (partition.getAllocated() == null) throw new SoSimException("me_09");
    ProcessComponent child = (ProcessComponent) partition.getAllocated();

    swap.add(child);
    child.setLoad(false);
    partition.setAllocated(null);
  }
Пример #2
0
  /**
   * Removes all process' components from memory
   *
   * @param memory partitions linked list (memory)
   * @param b memory partition containing a process segment
   */
  public void removeProcessInMemory(List<MemPartition> memory, MemPartition b) {
    // Remove all program blocks from memory
    int id = b.getAllocated().getPid();
    Iterator<MemPartition> it = memory.iterator();

    while (it.hasNext()) {
      MemPartition block = it.next();
      if (block.getAllocated() != null && block.getAllocated().getPid() == id)
        block.setAllocated(null);
    }
  }
Пример #3
0
 /**
  * Removes from memory all other process' pages that belongs to the same process as the page in
  * the backing store.
  *
  * @param memory partitions linked list (memory)
  * @param swap processes into backing store linked list (swap)
  * @param swapped process pages in the backing store
  */
 public void removeSwappedProcessComponents(
     List<MemPartition> memory, List<ProcessMemUnit> swap, ProcessMemUnit swapped) {
   int pid = swapped.getPid();
   Iterator<MemPartition> it = memory.iterator();
   while (it.hasNext()) {
     MemPartition block = it.next();
     if (block.getAllocated() != null && block.getAllocated().getPid() == pid) {
       block.setAllocated(null);
     }
   }
   Object[] swapList = swap.toArray();
   for (int i = 0; i < swapList.length; i++) {
     if (((ProcessMemUnit) swapList[i]).getPid() == pid) {
       swap.remove(swapList[i]);
     }
   }
 }