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/**************************************************************************/
/* */
/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */
/* Copyright (c) 2008-2017 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de> */
/* Copyright (c) 2014-2022 Ulrich Sibiller <uli42@gmx.de> */
/* Copyright (c) 2014-2019 Mihai Moldovan <ionic@ionic.de> */
/* Copyright (c) 2011-2022 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/
/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */
/* */
/* NXCOMP, NX protocol compression and NX extensions to this software */
/* are copyright of the aforementioned persons and companies. */
/* */
/* Redistribution and use of the present software is allowed according */
/* to terms specified in the file LICENSE.nxcomp which comes in the */
/* source distribution. */
/* */
/* All rights reserved. */
/* */
/* NOTE: This software has received contributions from various other */
/* contributors, only the core maintainers and supporters are listed as */
/* copyright holders. Please contact us, if you feel you should be listed */
/* as copyright holder, as well. */
/* */
/**************************************************************************/
#ifndef Keeper_H
#define Keeper_H
#include "Misc.h"
#include "Types.h"
//
// Set the verbosity level.
//
#define PANIC
#define WARNING
#undef TEST
#undef DEBUG
//
// Define this to check how many file
// nodes are allocated and deallocated.
//
#undef REFERENCES
class Keeper;
class File
{
friend class Keeper;
public:
File();
~File();
//
// Allow sort by time and size. If time
// is the same, keep the bigger element.
//
bool compare(File *b) const;
private:
char *name_;
int size_;
time_t time_;
#ifdef REFERENCES
static int references_;
#endif
};
class Keeper
{
public:
Keeper(int caches, int images, const char *root,
int sleep, int parent);
~Keeper();
//
// Call this just once.
//
int cleanupCaches();
//
// Call this at any given interval.
//
int cleanupImages();
//
// Call this if it's time to exit.
//
void setSignal(int signal)
{
signal_ = signal;
}
int getSignal()
{
return signal_;
}
int getParent()
{
return parent_;
}
private:
//
// Get a list of files in directory.
//
int collect(const char *path);
//
// Sort the collected files according to
// last modification time and delete the
// older ones until disk size is below
// the threshold.
//
int cleanup(int threshold);
//
// Empty the files repository.
//
void empty();
//
// Size in bytes of total allowed
// storage for persistent caches.
//
int caches_;
//
// Size in bytes of total allowed
// storage for images cache.
//
int images_;
//
// Path of the NX root directory.
//
char *root_;
//
// The little delay to be introduced
// before reading a new entry.
//
int sleep_;
//
// Total size of files in repository.
//
int total_;
//
// The parent process, so we can exit
// if it is gone.
//
int parent_;
//
// Set if we need to give up because
// of a signal.
//
int signal_;
//
// Repository where to collect files.
//
T_files *files_;
};
#endif /* Keeper_H */
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