From 5affa0019a9c876b3c8121e24ae738fe68f96518 Mon Sep 17 00:00:00 2001
From: Ramakrishnan Muthukrishnan <vu3rdd@gmail.com>
Date: Fri, 17 Jun 2011 20:21:48 +0530
Subject: [PATCH] solution to 3.45

---
 src/sicp/ex3_45.rkt | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 src/sicp/ex3_45.rkt

diff --git a/src/sicp/ex3_45.rkt b/src/sicp/ex3_45.rkt
new file mode 100644
index 0000000..f3dd618
--- /dev/null
+++ b/src/sicp/ex3_45.rkt
@@ -0,0 +1,14 @@
+#lang racket
+
+#|
+
+Deposits and Withdrawals are fine. But when it comes to exchange, we need a
+"mutually serialized" procedure with something like this:
+
+ (serializer-1 (serializer-2 exchange))
+
+Otherwise, we are creating a "time hole" when another execution process can
+get hold of one of the account and deposit/withdraw from it which will make
+the end result of exchange erroneous.
+
+|#
\ No newline at end of file
-- 
2.37.2