slow client

client.go

package main

import (
	"fmt"
	"net/http"
	"os"
	"time"

	"google3/base/go/flag"
)

var (
	url             = flag.String("url", "", "URL")
	transportBuffer = flag.Int("transport_buffer", 10, "transport buffer size in bytes used by HTTP client")
	readBuffer      = flag.Int("read_buffer", 1, "read buffer size in bytes used for reading bytes from the trasport buffer")
	readInterval    = flag.Duration("read_interval", time.Second, "interval to read from the transport buffer into the read buffer")
)

func main() {
	flag.Parse()
	fmt.Println("=======================\n")
	fmt.Printf("URL: %s\ntransport_buffer: %d\nread_buffer:%d\nread_interval: %v\n", *url, *transportBuffer, *readBuffer, *readInterval)
	transport := &http.Transport{
		ReadBufferSize: *transportBuffer,
	}
	fmt.Println("=======================\n\n")
	client := &http.Client{Transport: transport}
	response, err := client.Get(*url)
	if err != nil {
		fmt.Printf("%v\n", err)
		os.Exit(1)
	}
	defer response.Body.Close()
	for k, v := range response.Header {
		fmt.Printf("%s:%s\n", k, v)
	}

	buffer := make([]byte, *readBuffer)
	for {
		n, err := response.Body.Read(buffer)
		if err != nil {
			fmt.Printf("Read error: %v\n", err)
			os.Exit(1)
		}
		fmt.Printf("Read %d bytes: %s\n", n, string(buffer))
		time.Sleep(*readInterval)
	}
}