I think you can't. The listen backlog is set to whatever is kernel's
maximum backlog value.
See for example /usr/local/go/src/net/sock_linux.go to see how that is
determined.
There has been a bug report about it:
https://github.com/golang/go/issues/6079
I think it has been incorrectly closed (or alternatively I am missing
how to set it).
Workarounds:
* Create the socket yourself using syscall.Socket, syscall.Bind and
syscall.Listen and then use net.FileListener.
* Lower the kernel backlog value. Note that this will affect all
processes on the system.
Best regards,
Janne Snabb
[email protected]
On 22/03/2019 18.48, Wangbo wrote:
I know Control func and syscall.SetsockoptInt(fd, syscall.AF_INET,
syscall.SO_REUSEADDR, 1) cat set reuseadd
But how to adjust listen backlog since i never find socket options for it.
Agniva De Sarker <[email protected]
<mailto:[email protected]>> 于2019年3月22日周五 下午4:44写道：
Using ListenConfig is the way to go.
The Control func is passed the raw socket connection on which you
can apply whatever socket options you choose. You have to go
through 2 layers to get to the fd.
ListenConfig{
Control: func(conn syscall.RawConn) error {
return conn.Control(func(fd uintptr) error {
return syscall.SetsockoptInt(fd, syscall.AF_INET, 0, 0)
})
}
}
On Thursday, 21 March 2019 20:49:20 UTC+5:30, Peter Wang wrote:
I try to use net.ListenConfig, but fail
can someone give example ?
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