From cde7939fe13e10d519c569ee0db733cf47f85094 Mon Sep 17 00:00:00 2001
From: Vivek Saini <vsaini@snapchat.com>
Date: Thu, 14 Apr 2022 17:21:50 +0000
Subject: [PATCH] Defensive asserts for RWLock

---
 src/readwritelock.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/readwritelock.h b/src/readwritelock.h
index a7318a29f..9efed8da4 100644
--- a/src/readwritelock.h
+++ b/src/readwritelock.h
@@ -65,6 +65,7 @@ public:
     void releaseRead() {
         std::unique_lock<fastlock> rm(m_readLock);
         m_readCount--;
+        serverAssert(m_readCount >= 0);
         m_cv.notify_all();
     }
 
@@ -74,6 +75,7 @@ public:
         if (exclusive)
             m_writeLock.unlock();
         m_writeCount--;
+        serverAssert(m_writeCount >= 0);
         m_cv.notify_all();
     }