internal, log: remove code for old unsupported go-versions (#28090)
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@ -14,9 +14,6 @@
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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//go:build go1.6
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// +build go1.6
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package debug
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import "runtime/debug"
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@ -1,25 +0,0 @@
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// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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//go:build !go1.6
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// +build !go1.6
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package debug
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// LoudPanic panics in a way that gets all goroutine stacks printed on stderr.
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func LoudPanic(x interface{}) {
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panic(x)
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}
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@ -14,9 +14,6 @@
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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//go:build go1.5
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// +build go1.5
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package debug
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import (
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@ -1,32 +0,0 @@
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// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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//go:build !go1.5
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// +build !go1.5
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// no-op implementation of tracing methods for Go < 1.5.
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package debug
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import "errors"
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func (*HandlerT) StartGoTrace(string) error {
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return errors.New("tracing is not supported on Go < 1.5")
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}
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func (*HandlerT) StopGoTrace() error {
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return errors.New("tracing is not supported on Go < 1.5")
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}
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@ -7,6 +7,7 @@ import (
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"os"
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"reflect"
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"sync"
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"sync/atomic"
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"github.com/go-stack/stack"
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)
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@ -354,3 +355,21 @@ func (m muster) FileHandler(path string, fmtr Format) Handler {
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func (m muster) NetHandler(network, addr string, fmtr Format) Handler {
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return must(NetHandler(network, addr, fmtr))
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}
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// swapHandler wraps another handler that may be swapped out
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// dynamically at runtime in a thread-safe fashion.
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type swapHandler struct {
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handler atomic.Value
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}
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func (h *swapHandler) Log(r *Record) error {
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return (*h.handler.Load().(*Handler)).Log(r)
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}
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func (h *swapHandler) Swap(newHandler Handler) {
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h.handler.Store(&newHandler)
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}
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func (h *swapHandler) Get() Handler {
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return *h.handler.Load().(*Handler)
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}
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@ -1,27 +0,0 @@
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//go:build !go1.4
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// +build !go1.4
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package log
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import (
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"sync/atomic"
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"unsafe"
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)
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// swapHandler wraps another handler that may be swapped out
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// dynamically at runtime in a thread-safe fashion.
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type swapHandler struct {
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handler unsafe.Pointer
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}
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func (h *swapHandler) Log(r *Record) error {
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return h.Get().Log(r)
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}
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func (h *swapHandler) Get() Handler {
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return *(*Handler)(atomic.LoadPointer(&h.handler))
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}
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func (h *swapHandler) Swap(newHandler Handler) {
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atomic.StorePointer(&h.handler, unsafe.Pointer(&newHandler))
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}
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@ -1,24 +0,0 @@
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//go:build go1.4
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// +build go1.4
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package log
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import "sync/atomic"
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// swapHandler wraps another handler that may be swapped out
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// dynamically at runtime in a thread-safe fashion.
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type swapHandler struct {
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handler atomic.Value
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}
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func (h *swapHandler) Log(r *Record) error {
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return (*h.handler.Load().(*Handler)).Log(r)
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}
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func (h *swapHandler) Swap(newHandler Handler) {
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h.handler.Store(&newHandler)
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}
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func (h *swapHandler) Get() Handler {
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return *h.handler.Load().(*Handler)
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}
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