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http_client.go
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http_client.go
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package s3gof3r
import (
"net"
"net/http"
"time"
)
type deadlineConn struct {
Timeout time.Duration
net.Conn
}
func (c *deadlineConn) Read(b []byte) (n int, err error) {
if err = c.Conn.SetDeadline(time.Now().Add(c.Timeout)); err != nil {
return
}
return c.Conn.Read(b)
}
func (c *deadlineConn) Write(b []byte) (n int, err error) {
if err = c.Conn.SetDeadline(time.Now().Add(c.Timeout)); err != nil {
return
}
return c.Conn.Write(b)
}
// ClientWithTimeout is an http client optimized for high throughput
// to S3, It times out more agressively than the default
// http client in net/http as well as setting deadlines on the TCP connection
func ClientWithTimeout(timeout time.Duration) *http.Client {
transport := &http.Transport{
Proxy: http.ProxyFromEnvironment,
Dial: func(netw, addr string) (net.Conn, error) {
c, err := net.DialTimeout(netw, addr, timeout)
if err != nil {
return nil, err
}
if tc, ok := c.(*net.TCPConn); ok {
tc.SetKeepAlive(true)
tc.SetKeepAlivePeriod(timeout)
}
return &deadlineConn{timeout, c}, nil
},
ResponseHeaderTimeout: timeout,
MaxIdleConnsPerHost: 10,
}
return &http.Client{Transport: transport}
}