ostiLeave
osGLOBAL void ostiLeave(tiRoot_t *ptiRoot, bit32 layer, int io);
#define OSTI_INP_LEAVE(root) ostiLeave(root, 2, 0)
#define OSTI_OUT_LEAVE(root) ostiLeave(root, 2, 1)
ostiLeave(((tdsaRootOsData_t*)(agRoot->osData))->tiRoot, 0, io);
ostiLeave(ptiRoot, 1, io);