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further pedagogy: a channel that satisfies the HTTP server interface

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R=rsc
DELTA=18  (18 added, 0 deleted, 0 changed)
OCL=24482
CL=24484
This commit is contained in:
Rob Pike 2009-02-05 15:56:31 -08:00
parent b0009bef20
commit f95a11e27f
1 changed files with 18 additions and 0 deletions
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18
src/lib/http/triv.go
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@ -45,11 +45,29 @@ func FileServer(c *http.Conn, req *http.Request) {
fmt.Fprintf(c, "[%d bytes]\n", n);
}
// a channel (just for the fun of it)
type Chan chan int
func ChanCreate() Chan {
c := make(Chan);
go func(c Chan) {
for x := 0;; x++ {
c <- x
}
}(c);
return c;
}
func (ch Chan) ServeHTTP(c *http.Conn, req *http.Request) {
io.WriteString(c, fmt.Sprintf("channel send #%d\n", <-ch));
}
func main() {
flag.Parse();
http.Handle("/counter", new(Counter));
http.Handle("/go/", http.HandlerFunc(FileServer));
http.Handle("/go/hello", http.HandlerFunc(HelloServer));
http.Handle("/chan", ChanCreate());
err := http.ListenAndServe(":12345", nil);
if err != nil {
panic("ListenAndServe: ", err.String())