AdGuardHome/internal/aghnet/ipmut.go
Eugene Burkov d2cf3233b8 Pull request: 3890 fix anonymization
Merge in DNS/adguard-home from 3890-fix-stats to master

Updates #3890.

Squashed commit of the following:

commit a77a6204bc8a58f62a4fac70efdcae4267a64810
Merge: 834493a2 90e65b66
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Dec 6 17:22:16 2021 +0300

    Merge branch 'master' into 3890-fix-stats

commit 834493a22ae79199efcc44e0715e2ac6f6272963
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Dec 6 17:09:30 2021 +0300

    querylog: load once

commit b8000e7ba7a998fcd4553230ec5e5f9c90106e31
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Dec 6 16:54:41 2021 +0300

    querylog: fix docs

commit 7db99ccfa19b58100950c11d67b23bca7af3e5cb
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Dec 6 16:51:31 2021 +0300

    querylog: imp docs

commit 2a84650bd7ac5195730a7ab47b9562a83f721499
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Dec 6 15:48:09 2021 +0300

    querylog: imp anonyization

commit 0f63feb1ff5f006fc528c3b681ef3b9d2199581e
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Dec 6 14:44:37 2021 +0300

    all: imp code & docs

commit c4ccdcbb7248897edd178fd5cb77127e39ada73d
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Dec 6 14:24:30 2021 +0300

    all: log changes

commit 60bb777a5aff36bba129a078fa11ae566298178a
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Dec 6 14:08:41 2021 +0300

    all: use atomic value

commit c45886bd20eee2212b42686ff369830d8c08fe36
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Nov 30 18:50:02 2021 +0300

    all: anonymize separately
2021-12-06 17:26:43 +03:00

44 lines
988 B
Go

package aghnet
import (
"net"
"sync/atomic"
)
// IPMutFunc is the signature of a function which modifies the IP address
// instance. It should be safe for concurrent use.
type IPMutFunc func(ip net.IP)
// nopIPMutFunc is the IPMutFunc that does nothing.
func nopIPMutFunc(net.IP) {}
// IPMut is a type-safe wrapper of atomic.Value to store the IPMutFunc.
type IPMut struct {
f atomic.Value
}
// NewIPMut returns the new properly initialized *IPMut. The m is guaranteed to
// always store non-nil IPMutFunc which is safe to call.
func NewIPMut(f IPMutFunc) (m *IPMut) {
m = &IPMut{
f: atomic.Value{},
}
m.Store(f)
return m
}
// Store sets the IPMutFunc to return from Func. It's safe for concurrent use.
// If f is nil, the stored function is the no-op one.
func (m *IPMut) Store(f IPMutFunc) {
if f == nil {
f = nopIPMutFunc
}
m.f.Store(f)
}
// Load returns the previously stored IPMutFunc.
func (m *IPMut) Load() (f IPMutFunc) {
return m.f.Load().(IPMutFunc)
}