goqueue

an Bounded Lock Free Queue use array as circle queue

clone from https://github.com/yireyun/go-queue and changed little things, add some comments

run test case

make test ## test all cases

make lfqueue ## only test lfqueue

how to use

q := NewQueue(1024)

ok, cnt := qq.Put(val)

if ok {

}

val, ok, cnt := qq.Get()

if ok {

}

put & get both can be failed, so caller must check and do try thing