Many thanks!
Yes, I know that it is wrong to keep connection without call Close func.
just when I working on a bug, I found the connection was closed
automatically somehow.
在 2017年2月16日星期四 UTC+8下午4:33:54，Axel Wagner写道：
>
> Yes, in general, the GC will usually close connections when the
> corresponding files are collected. But a) you can't really rely on that and
> b) the number of file descriptors that a program can open is very limited
> and for many programs, the rate at which they are opened is high enough,
> that they will pass that threshold, because the GC doesn't collect them
> quickly enough.
>
> Given how limited file descriptors are, you thus should still take care to
> actually close all files you open yourself.
>
> On Thu, Feb 16, 2017 at 9:29 AM, <casp...@gmail.com <javascript:>> wrote:
>
>> Thanks for you reply!
>> Means yes, GC will close unused connection, just indirectly? Cause I
>> found this:
>> #/opt/go/src/net/fd_unix.go
>> func (fd *netFD) setAddr(laddr, raddr Addr) {
>> fd.laddr = laddr
>> fd.raddr = raddr
>> runtime.SetFinalizer(fd, (*netFD).Close)
>> }
>>
>> And this function is called by netFD.dial in sock_posix.go:148
>>
>>
>> 在 2017年2月16日星期四 UTC+8下午3:31:07，Jan Mercl写道：
>>>
>>> On Thu, Feb 16, 2017 at 8:20 AM <casp...@gmail.com> wrote:
>>>
>>> > Will GC close unused connection ?
>>>
>>> No. At least not directly. A finalizer can possibly do that and
>>> finalizers are possibly invoked by the GC.
>>>
>>> --
>>>
>>> -j
>>>
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>
>
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