*** empty log message ***

git-svn-id: https://ceph.svn.sf.net/svnroot/ceph@5 29311d96-e01e-0410-9327-a35deaab8ce9

ceph/common/DecayCounter.h

@@ -0,0 +1,60 @@
+
+#ifndef __DECAYCOUNTER_H
+#define __DECAYCOUNTER_H
+
+#include <math.h>
+
+class DecayCounter {
+ protected:
+  double val;              // value
+
+  double half_life;        // in seconds
+  double k;                // k = ln(.5)/half_life
+
+  double last_decay;       // time of last decay
+
+ public:
+  DecayCounter(double hl) {
+	set_halflife(hl);
+	reset();
+  }
+
+  void set_halflife(double hl) {
+	half_life = hl;
+	k = log(.5) / hl;
+  }
+
+  double now() {
+	// ??
+	return 1.0;
+  }
+
+  void reset() {
+	last_decay = 0.0;
+	val = 0;
+  }
+
+  void decay() {
+	double now = now();
+	double el = now - last_decay;
+	if (el > .1) {
+	  val = val * exp(el * k);
+	  last_decay = now;
+	}
+  }
+
+  double get() {
+	decay();
+	return val;
+  }
+
+  double hit(double v = 1.0) {
+	decay();
+	val += v;
+	return val;
+  }
+
+};
+
+
+#end;f

ceph/include/MDS.h

@@ -4,8 +4,12 @@
 
 
 #include <sys/types.h>
+#include <ext/hash_set>
+
 #include "dcache.h"
 
+
+
 // 
 
 class CMDS {
@@ -15,7 +19,14 @@ class CMDS {
 
   // cache
   DentryCache *dc;
+
+  // import/export
+  hash_set<CInode*>  import_list;
+  hash_set<CInode*>  export_list;
   
+  // message queues
+ 
+
   
  public:
   CMDS(int id, int num) {

ceph/include/MDStore.h

@@ -0,0 +1,15 @@
+
+#ifndef __MDSTORE_H
+#define __MDSTORE_H
+
+
+class MDStore {
+ protected:
+  
+
+ public:
+
+
+};
+
+#endif

ceph/include/dcache.h

@@ -6,6 +6,7 @@
 #include <string>
 #include <vector>
 #include <map>
+#include <ext/hash_map>
 
 #include "inode.h"
 #include "lru.h"