From c76f22fd4f5270f113d5795b7746c383cffea477 Mon Sep 17 00:00:00 2001
From: Sears Russell <sears@cs.berkeley.edu>
Date: Thu, 23 Oct 2008 20:27:08 +0000
Subject: [PATCH] reduce the risk that broken calls to Tset() will create
 unrecoverable logs

---
 src/stasis/operations/set.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/stasis/operations/set.c b/src/stasis/operations/set.c
index 59377f8..dfc49f9 100644
--- a/src/stasis/operations/set.c
+++ b/src/stasis/operations/set.c
@@ -94,11 +94,16 @@ int Tset(int xid, recordid rid, const void * dat) {
   readlock(p->rwlatch,0);
   rid = stasis_record_dereference(xid,p,rid);
   rid.size = stasis_record_type_to_size(rid.size);
+
   if(rid.size > BLOB_THRESHOLD_SIZE) {
     writeBlob(xid,p,rid,dat);
     unlock(p->rwlatch);
     releasePage(p);
   } else {
+    if(rid.page == p->id) {
+      // failing early avoids unrecoverable logs...
+      assert(rid.size == stasis_record_length_read(xid, p, rid));
+    }
     unlock(p->rwlatch);
     releasePage(p);