From b33bf3f7042464ac4f6e187fc487ee42668fcef7 Mon Sep 17 00:00:00 2001
From: gingerBill <bill@gingerbill.org>
Date: Thu, 26 Aug 2021 22:17:51 +0100
Subject: Correct race condition and incorrect usage of `condition_signal`
 outside of a mutex lock

---
 src/exact_value.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/exact_value.cpp')

diff --git a/src/exact_value.cpp b/src/exact_value.cpp
index 17b593995..d42f5359e 100644
--- a/src/exact_value.cpp
+++ b/src/exact_value.cpp
@@ -3,6 +3,8 @@
 // TODO(bill): Big numbers
 // IMPORTANT TODO(bill): This needs to be completely fixed!!!!!!!!
 
+gb_global BlockingMutex hash_exact_value_mutex;
+
 struct Ast;
 struct HashKey;
 struct Type;
@@ -62,6 +64,9 @@ struct ExactValue {
 gb_global ExactValue const empty_exact_value = {};
 
 HashKey hash_exact_value(ExactValue v) {
+	mutex_lock(&hash_exact_value_mutex);
+	defer (mutex_unlock(&hash_exact_value_mutex));
+	
 	HashKey empty = {};
 	switch (v.kind) {
 	case ExactValue_Invalid:
-- 
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