1 files changed, 53 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/common/event_tracer.cpp b/gfx/angle/checkout/src/common/event_tracer.cpp
new file mode 100644
index 0000000000..151cb2cd70
--- /dev/null
+++ b/gfx/angle/checkout/src/common/event_tracer.cpp
@@ -0,0 +1,53 @@
+// Copyright 2012 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "common/event_tracer.h"
+
+#include "common/debug.h"
+
+namespace angle
+{
+
+const unsigned char *GetTraceCategoryEnabledFlag(PlatformMethods *platform, const char *name)
+{
+    ASSERT(platform);
+
+    const unsigned char *categoryEnabledFlag =
+        platform->getTraceCategoryEnabledFlag(platform, name);
+    if (categoryEnabledFlag != nullptr)
+    {
+        return categoryEnabledFlag;
+    }
+
+    static unsigned char disabled = 0;
+    return &disabled;
+}
+
+angle::TraceEventHandle AddTraceEvent(PlatformMethods *platform,
+                                      char phase,
+                                      const unsigned char *categoryGroupEnabled,
+                                      const char *name,
+                                      unsigned long long id,
+                                      int numArgs,
+                                      const char **argNames,
+                                      const unsigned char *argTypes,
+                                      const unsigned long long *argValues,
+                                      unsigned char flags)
+{
+    ASSERT(platform);
+
+    double timestamp = platform->monotonicallyIncreasingTime(platform);
+
+    if (timestamp != 0)
+    {
+        angle::TraceEventHandle handle =
+            platform->addTraceEvent(platform, phase, categoryGroupEnabled, name, id, timestamp,
+                                    numArgs, argNames, argTypes, argValues, flags);
+        return handle;
+    }
+
+    return static_cast<angle::TraceEventHandle>(0);
+}
+
+}  // namespace angle