bufferHashTable.cpp

#include <memory>
#include <iostream>
#include "buffer.h"
#include "bufferHashTable.h"
#include "exceptions/hash_already_present_exception.h"
#include "exceptions/hash_not_found_exception.h"
#include "exceptions/hash_table_exception.h"

namespace wiscdb {

int BufferHashTable::hash(const File* file, const PageId pageNo){
  int tmp, value;
  tmp = (long)file;  // cast of pointer to the file object to an integer
  value = (tmp + pageNo) % HTSIZE;
  return value;
}

BufferHashTable::BufferHashTable(const int htSize) {
  SIZE = htSize;
  // allocate an array of pointers to HashItems
  table = new HashItem* [htSize];
  for(int i=0; i < SIZE; i++)
    table[i] = NULL;
}

BufferHashTable::~BufferHashTable(){
}

void BufferHashTable::insert(const File* file, const PageId pageNo, 
                             const FrameId frameNo){
}

void BufferHashTable::lookup(const File* file, const PageId pageNo, 
                             FrameId &frameNo) {
}

void BufferHashTable::remove(const File* file, const PageId pageNo) {
}

}