From fe0f1aea07d886555956f8b906d672fd49266f00 Mon Sep 17 00:00:00 2001
From: Bartosz Taudul <wolf.pld@gmail.com>
Date: Mon, 12 Aug 2019 20:08:15 +0200
Subject: [PATCH] Add system tracing skeleton.

---
 TracyClient.cpp          |  1 +
 client/TracyProfiler.cpp | 23 +++++++++++++++++++++++
 client/TracyProfiler.hpp |  1 +
 client/TracySysTrace.cpp | 23 +++++++++++++++++++++++
 client/TracySysTrace.hpp | 21 +++++++++++++++++++++
 5 files changed, 69 insertions(+)
 create mode 100644 client/TracySysTrace.cpp
 create mode 100644 client/TracySysTrace.hpp

diff --git a/TracyClient.cpp b/TracyClient.cpp
index ec70ed6d..c5eab179 100644
--- a/TracyClient.cpp
+++ b/TracyClient.cpp
@@ -19,6 +19,7 @@
 #include "client/TracyProfiler.cpp"
 #include "client/TracyCallstack.cpp"
 #include "client/TracySysTime.cpp"
+#include "client/TracySysTrace.cpp"
 #include "common/TracySocket.cpp"
 #include "client/tracy_rpmalloc.cpp"
 #include "client/TracyDxt1.cpp"
diff --git a/client/TracyProfiler.cpp b/client/TracyProfiler.cpp
index e48b1400..b22d1c92 100644
--- a/client/TracyProfiler.cpp
+++ b/client/TracyProfiler.cpp
@@ -931,6 +931,10 @@ static Profiler* s_instance;
 static Thread* s_thread;
 static Thread* s_compressThread;
 
+#ifdef TRACY_HAS_SYSTEM_TRACING
+static Thread* s_sysTraceThread = nullptr;
+#endif
+
 #ifdef TRACY_DELAYED_INIT
 struct ThreadNameData;
 TRACY_API moodycamel::ConcurrentQueue<QueueItem>& GetQueue();
@@ -1138,6 +1142,15 @@ Profiler::Profiler()
     new(s_compressThread) Thread( LaunchCompressWorker, this );
     SetThreadName( s_compressThread->Handle(), "Tracy Profiler DXT1" );
 
+#ifdef TRACY_HAS_SYSTEM_TRACING
+    if( SysTraceStart() )
+    {
+        s_sysTraceThread = (Thread*)tracy_malloc( sizeof( Thread ) );
+        new(s_sysTraceThread) Thread( SysTraceWorker, nullptr );
+        SetThreadName( s_sysTraceThread->Handle(), "Tracy Profiler system trace" );
+    }
+#endif
+
 #if defined PTW32_VERSION
     s_profilerThreadId = pthread_getw32threadid_np( s_thread->Handle() );
 #elif defined __WINPTHREADS_VERSION
@@ -1174,6 +1187,16 @@ Profiler::Profiler()
 Profiler::~Profiler()
 {
     m_shutdown.store( true, std::memory_order_relaxed );
+
+#ifdef TRACY_HAS_SYSTEM_TRACING
+    if( s_sysTraceThread )
+    {
+        SysTraceStop();
+        s_sysTraceThread->~Thread();
+        tracy_free( s_sysTraceThread );
+    }
+#endif
+
     s_compressThread->~Thread();
     tracy_free( s_compressThread );
     s_thread->~Thread();
diff --git a/client/TracyProfiler.hpp b/client/TracyProfiler.hpp
index 314a8fa9..6d80a0b9 100644
--- a/client/TracyProfiler.hpp
+++ b/client/TracyProfiler.hpp
@@ -10,6 +10,7 @@
 #include "tracy_concurrentqueue.h"
 #include "TracyCallstack.hpp"
 #include "TracySysTime.hpp"
+#include "TracySysTrace.hpp"
 #include "TracyFastVector.hpp"
 #include "../common/TracyQueue.hpp"
 #include "../common/TracyAlign.hpp"
diff --git a/client/TracySysTrace.cpp b/client/TracySysTrace.cpp
new file mode 100644
index 00000000..c18c1042
--- /dev/null
+++ b/client/TracySysTrace.cpp
@@ -0,0 +1,23 @@
+#include "TracySysTrace.hpp"
+
+#ifdef TRACY_HAS_SYSTEM_TRACING
+
+namespace tracy
+{
+
+bool SysTraceStart()
+{
+    return true;
+}
+
+void SysTraceStop()
+{
+}
+
+void SysTraceWorker( void* ptr )
+{
+}
+
+}
+
+#endif
diff --git a/client/TracySysTrace.hpp b/client/TracySysTrace.hpp
new file mode 100644
index 00000000..6f819b12
--- /dev/null
+++ b/client/TracySysTrace.hpp
@@ -0,0 +1,21 @@
+#ifndef __TRACYSYSTRACE_HPP__
+#define __TRACYSYSTRACE_HPP__
+
+#if defined _WIN32 || defined __CYGWIN__
+#  define TRACY_HAS_SYSTEM_TRACING
+#endif
+
+#ifdef TRACY_HAS_SYSTEM_TRACING
+
+namespace tracy
+{
+
+bool SysTraceStart();
+void SysTraceStop();
+void SysTraceWorker( void* ptr );
+
+}
+
+#endif
+
+#endif