1 files changed, 54 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/libANGLE/renderer/EGLReusableSync.h b/gfx/angle/checkout/src/libANGLE/renderer/EGLReusableSync.h
new file mode 100644
index 0000000000..12c972565d
--- /dev/null
+++ b/gfx/angle/checkout/src/libANGLE/renderer/EGLReusableSync.h
@@ -0,0 +1,54 @@
+//
+// Copyright 2020 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.
+//
+
+// EGL_KHR_reusable_sync
+
+#ifndef LIBANGLE_RENDERER_EGLREUSABLESYNC_H_
+#define LIBANGLE_RENDERER_EGLREUSABLESYNC_H_
+
+#include "libANGLE/AttributeMap.h"
+#include "libANGLE/renderer/EGLSyncImpl.h"
+
+#include "common/angleutils.h"
+
+#include <condition_variable>
+
+namespace rx
+{
+
+class ReusableSync final : public EGLSyncImpl
+{
+  public:
+    ReusableSync(const egl::AttributeMap &attribs);
+    ~ReusableSync() override;
+
+    void onDestroy(const egl::Display *display) override;
+
+    egl::Error initialize(const egl::Display *display,
+                          const gl::Context *context,
+                          EGLenum type) override;
+    egl::Error clientWait(const egl::Display *display,
+                          const gl::Context *context,
+                          EGLint flags,
+                          EGLTime timeout,
+                          EGLint *outResult) override;
+    egl::Error serverWait(const egl::Display *display,
+                          const gl::Context *context,
+                          EGLint flags) override;
+    egl::Error signal(const egl::Display *display,
+                      const gl::Context *context,
+                      EGLint mode) override;
+    egl::Error getStatus(const egl::Display *display, EGLint *outStatus) override;
+
+  private:
+    EGLint mStatus;
+    std::condition_variable mCondVar;
+    std::unique_lock<std::mutex> mMutex;
+};
+
+}  // namespace rx
+
+#endif  // LIBANGLE_RENDERER_EGLREUSABLESYNC_H_