From 401ebd6f3dbfe4c89777cb579ed39e7ab6f7614b Mon Sep 17 00:00:00 2001
From: Bartosz Taudul <wolf.pld@gmail.com>
Date: Mon, 20 Aug 2018 21:40:13 +0200
Subject: [PATCH] Use spin-lock in DequeueSerial.

A thread freezed during crash processing may hold the lock and never
release it. The old behavior would cause deadlock in such situation. The
new one can be modified to work. Also, we don't want to use timed mutex.
---
 client/TracyProfiler.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/client/TracyProfiler.cpp b/client/TracyProfiler.cpp
index e0902549..bd4284dd 100644
--- a/client/TracyProfiler.cpp
+++ b/client/TracyProfiler.cpp
@@ -1129,8 +1129,9 @@ Profiler::DequeueStatus Profiler::Dequeue( moodycamel::ConsumerToken& token )
 Profiler::DequeueStatus Profiler::DequeueSerial()
 {
     {
-        std::lock_guard<TracyMutex> lock( m_serialLock );
+        while( !m_serialLock.try_lock() ) {}
         m_serialQueue.swap( m_serialDequeue );
+        m_serialLock.unlock();
     }
 
     const auto sz = m_serialDequeue.size();