Re: [go-nuts] cgo and time.After
Dear Jakob and all,
indeed I was blind. This works like a charm:
amount := 42
remaining := amount
ticker := time.NewTicker(5 * time.Second)
defer ticker.Stop()
for remaining > 0 {
select {
case <-ticker.C:
fmt.Printf("Progress: %d left from %d\n", remaining, amount)
case <-donChan:
remaining--
case res := <-resChan:
fmt.Println(res)
}
}
thanks all!
Chris
On Saturday, May 19, 2018 at 9:16:19 PM UTC+2, Jakob Borg wrote:
>
> On 19 May 2018, at 16:25, Chris Burkert >
> wrote:
> >
> > case <-time.After(5 * time.Second):
> > fmt.Printf("Progress: %d left from %d\n", remaining, amount)
>
> It's not super clear from your post if you're aware of this already, but
> this case will only fire after the select has been blocked for five
> seconds. If there is any activity on the other cases one of those will
> proceed, you'll get another loop iteration, and another five second timeout
> before status output.
>
> Typically you'd use a five second ticker instead to get a channel event
> every five seconds and use that to print status output.
>
> //jb
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[go-nuts] What powers search on golang.org?
golang.org let’s you search all stdlib go source code. For example, see https://golang.org/search?q=hello Where is the code that serves these search queries? If the code is not public, does it use a publicly available or at least publicly documented search engine? -- 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. For more options, visit https://groups.google.com/d/optout.
[go-nuts] Re: What powers search on golang.org?
https://github.com/golang/blog/blob/a317451f36b22672c8a079489aa5425b9fa3a9da/content/context/google/google.go Google search On Monday, 21 May 2018 04:08:18 UTC+8, meir fischer wrote: > > golang.org let’s you search all stdlib go source code. > > For example, see https://golang.org/search?q=hello > > Where is the code that serves these search queries? If the code is not > public, does it use a publicly available or at least publicly documented > search engine? -- 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. For more options, visit https://groups.google.com/d/optout.
[go-nuts] Re: What powers search on golang.org?
Tho there is also the offline one used by godoc https://github.com/golang/tools/blob/4e70a1b26a7875f00ca1916637a876b5ffaeec59/godoc/search.go On Monday, 21 May 2018 05:27:53 UTC+8, alex@gmail.com wrote: > > > https://github.com/golang/blog/blob/a317451f36b22672c8a079489aa5425b9fa3a9da/content/context/google/google.go > > Google search > > On Monday, 21 May 2018 04:08:18 UTC+8, meir fischer wrote: >> >> golang.org let’s you search all stdlib go source code. >> >> For example, see https://golang.org/search?q=hello >> >> Where is the code that serves these search queries? If the code is not >> public, does it use a publicly available or at least publicly documented >> search engine? > > -- 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. For more options, visit https://groups.google.com/d/optout.
[go-nuts] db interface design
Hi
I am trying to practice golang and have some questions regarding to
interface design.
Say I want to create a simple app to store the book and its author info. I
am planning to create interfaces so that I can use different db driver
(mysql/mongo/redis...) as long as if they implemented DB interface:
https://play.golang.org/p/DOw83_OqBOe
I have a couple questions:
1. there are a lot of similar functions, for example NewBook and NewAuthor.
The difference is type of argument passed into the function. Is it a good
idea to combine those 2 functions with a generic New(interface{}) (string,
error) function and reflect the actual type inside?
2. Sometimes we query based on one or more conditions (where clause), for
example find books based on author/release data/ price. Should I create a
generic function like:
func FindBooks(map[string]interface{}) ([]Book, error)
that passed in a map of condition kv and do the typer assertion of each
condition key values?
Thanks for any advice
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[go-nuts] How can I get the last followed URL use http.Client on 302 Redirections?
if this is how the redirections go: A (original url) => B => C => D I want to know the url of request D the URL of A is never changed, and get the Location header from request is impossible. -- 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. For more options, visit https://groups.google.com/d/optout.
[go-nuts] Re: How can I get the last followed URL use http.Client on 302 Redirections?
Found a hacky solution, https://play.golang.org/p/jLlKR3yjWSw
Any better ideas?
var client = &http.Client{
CheckRedirect: setFollowURL,
}
func setFollowURL(req *http.Request, via []*http.Request) error {
via[0].URL = req.URL
if len(via) >= 10 {
return errors.New("stopped after 10 redirects")
}
return nil
}
On Monday, May 21, 2018 at 12:25:37 PM UTC+8, Darren Hoo wrote:
>
> if this is how the redirections go:
>
> A (original url) => B => C => D
>
> I want to know the url of request D
>
> the URL of A is never changed, and get the Location header from request is
> impossible.
>
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[go-nuts] I am confused.
Hello I am just a random person in this small planet of the creation that happens to think that artificial intelligence will take over the world of jobs in the future. With that point of I started to learn Java Script on Khan Academy but didn't quite make that much progress. So I think that now it is time for me to do some serious coding with my OWN launcher or compiler. And after a while I chosen go and got me here. But before I join this group I tried to download the compiler but it didn't quite work. When I finished downloading the 65 MSI installer it only gave me the option to delete the itself or itself and maybe the actual go compiler or repair itself, which when I clicked it it ran something and nothing visually changed. The source I was unable to open for some reason, the computer says it is to big and needs something program to open it. I tried the Internet Explorer but it didn't do anything. But when i clicked the store it shows me that if I have a Microsoft account it can download an program that can open the source which I don't have. By the way I am on a Windows computer. So please Gophers help me become a Gopher too. -- 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. For more options, visit https://groups.google.com/d/optout.
