updatges

088-tcp-client/088-tcp-client.go

@@ -1,30 +0,0 @@
-package main
-
-import ("fmt"; "net")
-
-func client() {
-
-}
-
-func main() {
-	c, err := net.Dial("tcp", "127.0.0.1:5000")
-    if err != nil {
-	  panic(err)
-    }
-
-    msg := "Hello World"
-    fmt.Println("Sending: ", msg)
-	_, err = c.Write([]byte(msg))
-    if err != nil {
-        panic(err)
-    }
-
-	buf := make([]byte, 1024)
-	_, err = c.Read(buf)
-	if err != nil {
-		panic(err)
-	} else {
-		fmt.Println("Received:", string(buf))
-		c.Close()
-	}
-}

088-tcp-client/tcp-client.go

@@ -0,0 +1,27 @@
+package main
+
+import "net"
+import "fmt"
+
+func main() {
+    c, err := net.Dial("tcp", "127.0.0.1:5000")
+    if err != nil {
+        panic(err)
+    }
+
+    msg := "hello world"
+    fmt.Println("Sending: ", msg)
+    _, err = c.Write([]byte(msg))
+    if err != nil {
+        panic(err)
+    }
+
+    buf := make([]byte, 1024)
+    _, err = c.Read(buf)
+    if err != nil {
+        panic(err)
+    } else {
+        fmt.Println("Received:", string(buf))
+        c.Close()
+    }
+}

088-tcp-client/tcp-client.sh

@@ -0,0 +1,3 @@
+$ go run tcp-client.go 
+Sending:  hello world
+Received: hello world

089-tcp-server/089-tcp-server.go

@@ -1,24 +0,0 @@
-package main
-
-import ("net")
-
-func main() {
-	listener, _ := net.Listen("tcp", "0.0.0.0:5000")
-	for {
-		conn, _ := listener.Accept()
-		go Serve(conn)
-	}
-}
-
-func Serve(conn net.Conn) {
-	buf := make([]byte, 1024)
-	for {
-		_, err := conn.Read(buf)
-		if err != nil {
-			conn.Close()
-			return
-		} else {
-			conn.Write(buf)
-		}
-	}
-}

089-tcp-server/tcp-server.go

@@ -0,0 +1,26 @@
+// ## TCP Server
+
+package main
+
+import "net"
+
+func main() {
+    listener, _ := net.Listen("tcp", "0.0.0.0:5000")
+    for {
+        conn, _ := listener.Accept()
+        go Serve(conn)
+    }
+}
+
+func Serve(conn net.Conn) {
+    buf := make([]byte, 1024)
+    for {
+        _, err := conn.Read(buf)
+        if err != nil {
+            conn.Close()
+            return
+        } else {
+            conn.Write(buf)
+        }
+    }
+}

089-tcp-server/tcp-server.sh

@@ -0,0 +1 @@
+$ go run tcp-server.go

090-tickers/090-tickers.go

@@ -1,15 +0,0 @@
-package main
-
-import ("time"; "fmt")
-
-func main() {
-	ticker := time.NewTicker(time.Millisecond * 500)
-	go func() {
-		for t := range ticker.C {
-			fmt.Println("Tick at", t)
-		}
-	}()
-	time.Sleep(time.Millisecond * 1500)
-	ticker.Stop()
-	fmt.Println("Ticker stopped")
-}

090-tickers/tickers.go

@@ -0,0 +1,18 @@
+// ## Tickers
+
+package main
+
+import "time"
+import "fmt"
+
+func main() {
+    ticker := time.NewTicker(time.Millisecond * 500)
+    go func() {
+        for t := range ticker.C {
+            fmt.Println("Tick at", t)
+        }
+    }()
+    time.Sleep(time.Millisecond * 1500)
+    ticker.Stop()
+    fmt.Println("Ticker stopped")
+}

090-tickers/tickers.sh

@@ -0,0 +1,5 @@
+$ go run tickers.go
+Tick at 2012-09-23 11:29:56.487625 -0700 PDT
+Tick at 2012-09-23 11:29:56.988063 -0700 PDT
+Tick at 2012-09-23 11:29:57.488076 -0700 PDT
+Ticker stopped

091-time/091-time.go

@@ -1,19 +0,0 @@
-package main
-
-import ("time"; "fmt")
-
-func main() {
-	now := time.Now()
-	fmt.Println(now)
-
-	then := time.Date(2009, 11, 17, 20, 34, 58, 651387237, time.UTC)
-	fmt.Println(then)
-
-	diff := now.Sub(then)
-	fmt.Println(diff)
-}
-
-// == todo
-// extract parts
-// add duration
-// check before / after

091-time/time.go

@@ -0,0 +1,21 @@
+// ## Time
+
+package main
+
+import "time"
+import "fmt"
+
+func main() {
+    now := time.Now()
+    fmt.Println(now)
+
+    then := time.Date(2009, 11, 17, 20, 34, 58, 651387237, time.UTC)
+    fmt.Println(then)
+
+    diff := now.Sub(then)
+    fmt.Println(diff)
+}
+
+// todo: extract parts
+// todo: add duration
+// todo: check before / after

091-time/time.sh

@@ -0,0 +1,4 @@
+$ go run time.go
+2012-09-23 11:28:59.551605 -0700 PDT
+2009-11-17 20:34:58.651387237 +0000 UTC
+24981h54m0.900217763s