You can do a non-blocking select on a channel prior to l.Accept(). If there is a pause message, you do a blocking select on the same channel for an resume or finish message. A separate goroutine can send you those messages depending on conditions under which you want to pause or resume.
If the above doesn't make sense write a sample program on play.golang.org, which does roughly want you want except for pause/resume, and post a link here and we can modify it for pause/resume. > On Jul 21, 2023, at 10:47 PM, David N <danowz...@gmail.com> wrote: > > I've posted this question on stackoverflow > <https://stackoverflow.com/questions/76447195/how-to-suspend-and-resume-accepting-new-connections-in-net-listener>, > discussed it with some members of the golang community, and I was encouraged > to post here. > > Problem: I have a secure application and I want to pause/resume accepting > network connections, calling `l.Accept()` blocks the thread, thus you can't > pause in a single-thread program. You can use goroutines but that still isn't > ideal, as the routine would still accept the connection first and only then > can close it if you're in "pause" mode. > > This could be solved by: > - having a non-blocking, async, `l.Accept()` > - returning a handle to (accepting) goroutine and killing/re-creating it from > main thread > - accepting connections in a separate process and communicating over a socket > > The 1st one doesn't exist, the 2nd one is not accepted by the language > designers, and the 3rd one is unnecessarily complex and prone to break. > > This looks like a shortcoming of golang, is it worth discussing further with > lang designers? > > -- > You received this message because you are subscribed to the Google Groups > "golang-nuts" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to golang-nuts+unsubscr...@googlegroups.com > <mailto:golang-nuts+unsubscr...@googlegroups.com>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/golang-nuts/CAN7%3DS7htWfYUQmd3H8GiWoWSaei1qU-FMcpqdyccFkXN1kmsWg%40mail.gmail.com > > <https://groups.google.com/d/msgid/golang-nuts/CAN7%3DS7htWfYUQmd3H8GiWoWSaei1qU-FMcpqdyccFkXN1kmsWg%40mail.gmail.com?utm_medium=email&utm_source=footer>. -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/8EF29629-1611-4B38-B096-0F181A0DC1E0%40iitbombay.org.
