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@@ -0,0 +1,30 @@
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+package main
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+
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+import (
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+ "fmt"
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+ "log"
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+ "net/http"
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+ "sync"
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+)
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+
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+var mu sync.Mutex
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+var count int
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+
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+func main() {
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+ http.HandleFunc("/", handler_)
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+ http.HandleFunc("/count", counter)
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+ log.Fatal(http.ListenAndServe("localhost:8000", nil))
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+}
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+
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+func handler_(w http.ResponseWriter, r *http.Request) {
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+ mu.Lock()
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+ count++
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+ mu.Unlock()
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+ fmt.Fprintf(w, "URL.Path = %q\n", r.URL.Path)
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+}
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+
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+func counter(w http.ResponseWriter, r *http.Request) {
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+ mu.Lock()
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+ fmt.Fprintf(w, "Count %d\n", count)
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+ mu.Unlock()
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+}
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