mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-29 13:05:46 +00:00
71029cea2d
This updates all source files to use a new standard header for copyright and license declaration. Notably, copyright no longer includes a date, and we now use the standard SPDX-License-Identifier header. This commit was done almost entirely mechanically with perl, and then some minimal manual fixes. Updates #6865 Signed-off-by: Will Norris <will@tailscale.com>
30 lines
594 B
Go
30 lines
594 B
Go
// Copyright (c) Tailscale Inc & AUTHORS
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
package prober
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"net"
|
|
)
|
|
|
|
// TCP returns a Probe that healthchecks a TCP endpoint.
|
|
//
|
|
// The ProbeFunc reports whether it can successfully connect to addr.
|
|
func TCP(addr string) ProbeFunc {
|
|
return func(ctx context.Context) error {
|
|
return probeTCP(ctx, addr)
|
|
}
|
|
}
|
|
|
|
func probeTCP(ctx context.Context, addr string) error {
|
|
var d net.Dialer
|
|
conn, err := d.DialContext(ctx, "tcp", addr)
|
|
if err != nil {
|
|
return fmt.Errorf("dialing %q: %v", addr, err)
|
|
}
|
|
conn.Close()
|
|
return nil
|
|
}
|