synchlist.h

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#ifndef SYNCHLIST_H
#define SYNCHLIST_H

#include "copyright.h"
#include "list.h"
#include "synch.h"


class SynchList
{
  public:
    SynchList ();       // initialize a synchronized list
    ~SynchList ();      // de-allocate a synchronized list

    void Append (void *item);   // append item to the end of the list,
    // and wake up any thread waiting in remove
    void *Remove ();        // remove the first item from the front of
    // the list, waiting if the list is empty
    // apply function to every item in the list
    void Mapcar (VoidFunctionPtr func);


    void * get(unsigned int index);
    unsigned int size();


    // Acquire the current Lock
    void GetTheLock();
    // Release the current Lock
    void FreeTheLock();
    // Return the list
    List * getList();
    // Return true if empty
    bool IsEmpty();


  private:
      List * list;      // the unsynchronized list
    Lock *lock;         // enforce mutual exclusive access to the list
    Condition *listEmpty;   // wait in Remove if the list is empty
};

#endif // SYNCHLIST_H