EGL_KHR_reusable_sync
https://www.khronos.org/registry/egl/specs/eglspec.1.5.pdf
EGL_KHR_reusable_sync

	EGL_NO_SYNC_KHR ((EGLSyncKHR)0)
	EGL_SYNC_FLUSH_COMMANDS_BIT_KHR 0x0001
	EGL_SYNC_STATUS_KHR 0x30F1
	EGL_SIGNALED_KHR 0x30F2
	EGL_UNSIGNALED_KHR 0x30F3
	EGL_TIMEOUT_EXPIRED_KHR 0x30F5
	EGL_CONDITION_SATISFIED_KHR 0x30F6
	EGL_SYNC_TYPE_KHR 0x30F7
	EGL_SYNC_REUSABLE_KHR 0x30FA
	EGL_FOREVER_KHR 0xFFFFFFFFFFFFFFFF
	EGLint  eglClientWaitSyncKHR (EGLDisplay  dpy, EGLSyncKHR  sync, EGLint  flags, EGLTimeKHR  timeout)
	EGLSyncKHR  eglCreateSyncKHR (EGLDisplay  dpy, EGLenum  type, const EGLint * attrib_list)
	EGLBoolean  eglDestroySyncKHR (EGLDisplay  dpy, EGLSyncKHR  sync)
	EGLBoolean  eglGetSyncAttribKHR (EGLDisplay  dpy, EGLSyncKHR  sync, EGLint  attribute, EGLint * value)
	EGLBoolean  eglSignalSyncKHR (EGLDisplay  dpy, EGLSyncKHR  sync, EGLenum  mode)
