3.8

src/nankai/oram/client/NewMCOSORAMClient.java

@@ -261,8 +261,8 @@ public class NewMCOSORAMClient implements ORAM{
 
 		if (slots[c].size() >= MCloudCommInfo.evictConditionSize)
 		{			
-//			System.out.println("evict c:"+c+" slot size:"+slots[c].size());
+			if (subORAMs[c].canWrite())
-			subORAMs[c].writeCloud(slots[c]);
+			    subORAMs[c].writeCloud(slots[c]);
 		}
 	}
 	

src/nankai/oram/client/Test/TestReadWrite/NewMCOSInitOram.java

@@ -18,7 +18,7 @@ public class NewMCOSInitOram {
 		NewMCOSORAMClient oram=new NewMCOSORAMClient(); 
 
 		//initialize the client
-		oram.init(102400);
+		oram.init(40000);
 		oram.openConnection(); 
 
 		long testTime = -1; 

src/nankai/oram/client/Test/TestReadWrite/NewMCOSReadAndWrite.java

@@ -10,7 +10,7 @@ import nankai.oram.common.Util;
 
 public class NewMCOSReadAndWrite {
 	
-	public static int N = 102400;
+	public static int N = 40000;
 
 	public static void main(String[] args) {  
 
@@ -26,12 +26,9 @@ public class NewMCOSReadAndWrite {
 
 	private static void testMultiWrite() {
 		//testWrite(5);
-		testWrite(10);
+		testWrite(10); 
-		testWrite(25);
+		testWrite(50); 
-		testWrite(50);
+		testWrite(100); 
-		testWrite(75);
-		testWrite(100);
-		testWrite(150);
 		testWrite(1000); 
 	}
 
@@ -80,17 +77,12 @@ public class NewMCOSReadAndWrite {
 		oram.openORAM();
 
 		Util.debug = false; 
-		
+		 
-
+		writeTheBlocks(oram, N); 
-		writeTheBlocks(oram, N);
+   
-  
+		accessWithRandomStatus(oram, 50); 
-  
+		accessWithRandomStatus(oram, 100);   
-		accessWithRandomStatus(oram, 500);  
+		accessWithRandomStatus(oram, 500);  	accessWithRandomStatus(oram, 1000);  
-		accessWithRandomStatus(oram, 1000);  
-		accessWithRandomStatus(oram, 5000);   
-		accessWithRandomStatus(oram, 10000);   
-		accessWithRandomStatus(oram, 50000);     
-		accessWithRandomStatus(oram, 100000);    
 //		
 		
 		oram.closeConnection();
@@ -122,8 +114,7 @@ public class NewMCOSReadAndWrite {
 		accessWithSameStatus(oram, 1000); 
 		//accessWithSameStatus(oram, 2500); 
 		accessWithSameStatus(oram, 5000);  
-//		accessWithSameStatus(oram, 7500); 
+//		accessWithSameStatus(oram, 7500); 		accessWithSameStatus(oram, 10000); 
-		accessWithSameStatus(oram, 10000); 
 		
 //		writeTheBlocks(oram, 10000);
 //		   
@@ -187,7 +178,7 @@ public class NewMCOSReadAndWrite {
         System.out.println("totalElapsedTime:"+totalElapsedTime);  
 //		System.out.println("-----Shuffle numeber-----!"+Util.writeNumber+"  Util.cloudtocloud:"+ Util.cloudtocloud); 
 //		System.out.println("-----ORAM CACHE-----!"+ oram.getCacheSlotSize()); 
-        System.out.println("-----writeNumber  ----  "+Util.writeNumber );
+        System.out.println("-----writeNumb r  ----  "+Util.writeNumber );
         System.out.println("-----cloudtocloud  ----  "+Util.cloudtocloud );
         System.out.println("-----readNumber  ----  "+Util.readNumber );
         System.out.println("-----bandwidth  ----  "+  Util.bandwidth  );

src/nankai/oram/client/mCloud/MCloudCommInfo.java

@@ -13,17 +13,17 @@ public interface MCloudCommInfo {
 //	public static int evictConditionSize = 16;//1+2+4=6
 //	public static int cloudNumber = 2; //the cloud number
 	
-//	public static int severBeginLevel = 2;//the default level of each partition in the server
+	public static int severBeginLevel = 2;//the default level of each partition in the server
-//	public static int clientEndLevel =1;//the default level of each partition in the client cache 
+	public static int clientEndLevel =1;//the default level of each partition in the client cache 
-//	public static int evictConditionSize = 3;//1+2+4=6
+	public static int evictConditionSize = 4;//1+2+4=6
-//	public static int cloudNumber = 2; //the cloud number
-	
-	public static int severBeginLevel = 5;//the default level of each partition in the server
-	public static int clientEndLevel = 4;//the default level of each partition in the client cache 
-	public static int evictConditionSize = 32;//1+2+4+8=15
 	public static int cloudNumber = 2; //the cloud number
+	
+//	public static int severBeginLevel = 5;//the default level of each partition in the server
+//	public static int clientEndLevel = 4;//the default level of each partition in the client cache 
+//	public static int evictConditionSize = 32;//1+2+4+8=15
+//	public static int cloudNumber = 2; //the cloud number
 
-	public static String[] ip={ "114.215.26.85", "114.215.26.85"}; 
+	//public static String[] ip={ "114.215.26.85", "114.215.26.85"}; 
-	//public static String[] ip={ "localhost", "localhost"}; 
+	public static String[] ip={ "localhost", "localhost"}; 
 	public static int[] port={ 2121, 2122}; 
 }

src/nankai/oram/client/mCloud/NewMCOSPartition.java

@@ -199,6 +199,16 @@ public class NewMCOSPartition{
 			// Second, onion decrypt by the user key
 			subOram.decryptData(data);
 		}
+		
+
+		//update all the real numbers
+		realDataNumber=0;
+		int levelBegin = (1 << (MCloudCommInfo.severBeginLevel + 1)) - 2;
+		for (int i=levelBegin; i<this.n_capacity; i++)
+		{
+			if (blockIDs[i]>0 && readFlag[i]==false)
+				realDataNumber++;
+		} 
 		return data ; 
 	}
 
@@ -353,7 +363,7 @@ public class NewMCOSPartition{
 
 		int rndLength = filledLevelLength - dataNumber - 2*evictSize; 
 		if (rndLength<0){
-			System.out.println(" rndLength "+ rndLength +" filledLevelLength "+filledLevelLength+" dataNumber "+dataNumber+" evictSize "+evictSize );
+			//System.out.println(" rndLength "+ rndLength +" filledLevelLength "+filledLevelLength+" dataNumber "+dataNumber+" evictSize "+evictSize );
 			return;
 		}
 		
@@ -541,9 +551,13 @@ public class NewMCOSPartition{
 		realDataNumber=0;
 		for (int i=levelBegin; i<this.n_capacity; i++)
 		{
-			if (blockIDs[i]>0)
+			if (blockIDs[i]>0 && readFlag[i]==false)
 				realDataNumber++;
 		}
+		
+
+		if (realDataNumber > this.n_realBlocks_p)
+			realDataNumber=realDataNumber;
 	}
 
 
@@ -632,9 +646,9 @@ public class NewMCOSPartition{
 		realDataNumber=0;
 		for (int i=levelBegin; i<this.n_capacity; i++)
 		{
-			if (blockIDs[i]>0)
+			if (blockIDs[i]>0 && readFlag[i]==false)
 				realDataNumber++;
-		}
+		} 
 	}
 	
 
@@ -696,7 +710,7 @@ public class NewMCOSPartition{
 		    }
 	    
 	    //Notice that, there is no dummy blocks
-	    //System.out.println("No dummy !!!!!! return 0!!!!!p:"+this.partition+"  !!!type:"+type+" level:"+level+" nextDummy[level]"+nextDummy[level]);
+//	    System.out.println("No dummy !!!!!! return 0!!!!!p:"+this.partition+"  !!!type:"+type+" level:"+level+" nextDummy[level]"+nextDummy[level]);
 	    return -1;
 	}
 }

src/nankai/oram/client/mCloud/SubCloudNewORAM.java

@@ -115,7 +115,7 @@ public class SubCloudNewORAM implements MultiCloudORAM {
 		int p = 1;//rnd.nextInt(n_partitions); 
         if (Util.debug == false){
         	p = rnd.nextInt(n_partitions);
-        	//not write to the partition with more than the pre-defined real blocks
+        	//not write to the partition with more than the pre-defined real blocks 
         	while ( partitions[p].realDataNumber >= (partitions[p].top_level_len - 2*MCloudCommInfo.evictConditionSize) )
             	p = rnd.nextInt(n_partitions);
         }
@@ -130,7 +130,18 @@ public class SubCloudNewORAM implements MultiCloudORAM {
 		
 		partitions[p].writePartition(slot, cli[cloud], otherCloud, cli[otherCloud], userKey, cloud);
 	}
-	 
+	
+	public boolean canWrite()
+	{
+		int realnumber = 0;
+		for (int i=0;i<this.n_partitions; i++)
+		{
+			realnumber += this.partitions[i].realDataNumber;
+		}
+		if (realnumber> ( (this.n_realBlocks_p * this.n_partitions * 11)/10 ) )
+			return false;
+		return true;
+	}
 
 
 	@Override