1 files changed, 191 insertions, 0 deletions
diff --git a/nxcomp/Keeper.h b/nxcomp/Keeper.h
new file mode 100755
index 000000000..3318811d6
--- /dev/null
+++ b/nxcomp/Keeper.h
@@ -0,0 +1,191 @@
+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMP, NX protocol compression and NX extensions to this software     */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rights reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#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 */
+