zjx20

make batchConn more generic

1

Sometimes we would like to implement a custom `net.PacketConn`, for example the `tcpraw`. This patch allows kcp-go to leverage the batching ability provided by the custom conn, if possible.

profile内存时发现，gaio内部用 list.List 来存放读者/写者的回调上下文，因此每次异步读写（写操作大部分情况就直接tryWrite成功了，所以更多情况是读操作）都会动态创建 list.Element 对象。 其实一般的应用，一个连接只会有1个读请求，或者若干个写请求，readers/writers 的数量相对较少，用slice就可以满足需求。这个PR用slice实现了 cbList 用来代替 list.List，以此优化内存分配次数较多的问题。 

allows WaitIO() to reuse the []OpResult slice

2

每次调用`WaitIO()`都会新创建一个`[]OpResult`小对象，对性能造成一定影响；这个PR修改了`WaitIO()`的接口，允许用户传入一个预先分配好的slice，从而避免每次重新创建。 ```go buf := make([]gaio.OpResult, 0, 100) for { results, err := w.WaitIO(buf) ... } ``` 甚至用户可以直接重用返回的slice ```go buf := make([]gaio.OpResult, 0, 100) for { results, err := w.WaitIO(buf) for...

@koperjian

[JAVA] mvn package fails if test compiling was skipped

6

I would like to run `mvn -Dmaven.test.skip=true clean package`, but `maven-dependency-plugin` complains `Unused declared dependencies` for some libraries used by the test code, which breaks the compilation. Please check the...

ci: make minikube.sh work on macOS M1 with the qemu2 driver

7

# Describe what this PR does # This PR makes scripts/minikube.sh work on macOS M1 with the qemu2 driver. Some modifications have been made to handle the compatibility of bash...