Another example becoming, more complex

1 files changed, 53 insertions, 0 deletions

diff --git a/becomings/fib.go b/becomings/fib.go
new file mode 100644
index 0000000..c1e9958
--- /dev/null
+++ b/becomings/fib.go
@@ -0,0 +1,53 @@
+package main
+
+import (
+	"fmt"
+	"net"
+	"os"
+	"strconv"
+	"sync"
+)
+
+const (
+	LISTEN = "localhost:3334"
+)
+
+type becoming struct {
+	Fibmutex sync.Mutex
+	Last     [2]int
+}
+
+func (b *becoming) Become() {
+	b.Last = [2]int{0, 0}
+	l, err := net.Listen("tcp", LISTEN)
+	if err != nil {
+		fmt.Println("Error listening: ", err.Error())
+		os.Exit(1)
+	}
+	defer l.Close()
+	for {
+		conn, err := l.Accept()
+		if err != nil {
+			fmt.Println("Error accepting: ", err.Error())
+		} else {
+			go handleRequest(conn, b)
+		}
+	}
+}
+
+func handleRequest(conn net.Conn, b *becoming) {
+	defer conn.Close()
+	b.Fibmutex.Lock()
+	defer b.Fibmutex.Unlock()
+	if b.Last == [2]int{0, 0} {
+		conn.Write([]byte(strconv.Itoa(0)))
+		b.Last[1] = 1
+	} else {
+		conn.Write([]byte(strconv.Itoa(b.Last[1])))
+		sum := b.Last[0] + b.Last[1]
+		b.Last[0] = b.Last[1]
+		b.Last[1] = sum
+	}
+}
+
+var Become becoming