---

blockpool.h

gehe zur Dokumentation dieser Datei

#ifndef BLOCKPOOL_H
#define BLOCKPOOL_H
#include"growingpersistentmseg.h"
#include"rpointer.h"
#include"common_page.h"

struct ManagementInfo
{
  char info[80];
  off_t freepagelist;
  off_t unused_pages;
};

class Blockpool
{
protected:
  RAMS::PersistentGrowingMseg gm;
  ManagementInfo *info;
  int as_;
public:
  Blockpool():as_(256) { info=NULL; }
  Blockpool(const char *filename,int as=256):as_(as)
  {
    RAMS::RPointer_s sud;
    init(filename,sud);
  }
  int init(const char *filename,RAMS::RPointer_s &sud); // return 1 if neu
  void free(RAMS::RPointer<CommonPage,PAGESIZE>& page);
  // ret muß schon fuer gm da sein !
  void getpage(RAMS::RPointer<CommonPage,PAGESIZE>& ret);
  RAMS::Mseg *getseg() { return &gm; }
};
#endif 

---