1cat <<EOF 2static inline bool 3${atomic}_dec_unless_positive(${atomic}_t *v) 4{ 5 ${int} c = ${atomic}_read(v); 6 7 do { 8 if (unlikely(c > 0)) 9 return false; 10 } while (!${atomic}_try_cmpxchg(v, &c, c - 1)); 11 12 return true; 13} 14EOF 15