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/BdbAccess/BdbFSMgr.hh

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//------------------------------------------------------------------------------
// File:
//      BdbFSMgr.hh
//
// Description:
//      Class BdbFSMgr definition. The class provides an API to all
//      the file system operations
//
// Environment:
//      Software developed for the BaBar Detector at the SLAC B-Factory
//
// Author List:
//      Jacek Becla                Original Author
//      Jean-Noel Albert           Support for the large files on Sun
//
// Copyright Information:
//      Copyright (C) 1997      Stanford Linear Accelerator Center
//
//------------------------------------------------------------------------------

#ifndef BDBFSMGR_HH
#define BDBFSMGR_HH

#ifndef BDB_HH
#include "BdbUtil/Bdb.hh"
#endif

extern "C" {
#include <sys/types.h>
}

#include "BdbAccess/BdbFileConfig.hh"
#include "BdbAccess/BdbFileSystem.hh"

class BdbPud;

#ifndef BDBANYFSHANDLER
#include "BdbAccess/BdbAnyFSHandler.hh"
#endif


class BdbFSMgr
{
// -----------------
// Static Members --
// -----------------
private:

    static d_Boolean _neverUseDaemon;   // if true, the FS must be available locally

    // ------------------
// Private Members --
// ------------------
private:

    ooVString  _fsGroup;
    
    d_ULong _currentFSNr;        // if !sequentialDistribution it needs to be resynchronized

    BdbAnyFSHandler _anyFSHandler;

// --------------------
// Private Functions --
// --------------------
private:

    BdbPud* selectDaemon(d_Boolean anyDaemon);

        BdbStatus firstAvailableDisk(d_ULong currentGlobalFSNr=0);
        d_Boolean isAvailableSpace();
                
        BdbStatus changeFileMode(int mode, const char* fileName) const;

        BdbPud* daemon(d_Boolean anyDaemon=true);
        
// -------------------
// Public Interface --
// -------------------
public:

   // Constructor(s)
        BdbFSMgr();

        // Destructor
        ~BdbFSMgr();

        BdbStatus rebuildFSInfo(const char* domainName, 
                            const char* authLevelName,
                            const char* authName, 
                            const char* compName);

        BdbStatus verifyDiskSpace(d_Boolean* diskChanged);

        BdbStatus copyFile(const char* source, const char* target, d_Boolean anyDaemon=true);
        BdbStatus moveFile(const char* source, const char* target, d_Boolean anyDaemon=true);
        BdbStatus symLink(const char* source, const char* target, d_Boolean anyDaemon=true);
        BdbStatus checkAvailSpace(const char* path, d_ULong minSpaceNeeded, 
                              d_Boolean* isAvailable, d_Boolean anyDaemon=true);
        BdbStatus chmodWrite(const char* fileName, d_Boolean anyDaemon=true);
        BdbStatus chmodRead(const char* fileName, d_Boolean anyDaemon=true);
        BdbStatus checkExist(const char* fileName, d_Boolean anyDaemon=true);
    BdbStatus createFile(const char* fileName, d_Boolean anyDaemon=true);
        BdbStatus rmFile(const char* fileName, d_Boolean anyDaemon=true);
        BdbStatus mkDir(const char* dirName, d_Boolean anyDaemon=true);
        BdbStatus rmDir(const char* dirName, d_Boolean anyDaemon=true);
        BdbStatus getFileSize(const char* fileName, off_t& theSize, 
                          d_Boolean anyDaemon=true);
        BdbStatus getFDFilePath(const char* bootFilePath, 
                                char*& theFDPath) const;

    BdbStatus getModificationDate(const char* fileName, time_t& stime, 
                                  d_Boolean anyDaemon=true);

    BdbStatus purgeMigrateFile(const char* path, const char* params);
                        
    const char* baseDir(d_Boolean anyFS=true);
    const char* host(d_Boolean anyFS=true);
    int getPortNr(const char* host) const;
    d_ULong minDiskSpace(d_Boolean anyFS=true);

        inline d_Boolean daemonDisabled() const;
        inline const char* fsGroupName() const;
} ;


// ------------------------------------------------------
// --  I  N  L  I  N  E      F  U  N  C  T  I  O  N  S --
// ------------------------------------------------------

inline d_Boolean BdbFSMgr::daemonDisabled() const
{       return _neverUseDaemon ; }

inline const char* BdbFSMgr::fsGroupName() const
{       return _fsGroup.head() ; }

#endif /* BDBFSMGR_HH */

 

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Page Owner: Jacek Becla
Last Update: October 04, 2002