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avoid data race on grace.hooks (#3572)

Browse Source 
https://github.com/seaweedfs/seaweedfs/issues/3564
This commit is contained in:
Konstantin Lebedev
2022-09-01 22:34:06 +05:00
committed by GitHub
parent 8c3040db81
commit c37d6fc01a
1 changed files with 4 additions and 2 deletions
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6
weed/util/grace/signal_handling.go
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@@ -12,7 +12,7 @@ import (
var signalChan chan os.Signal var signalChan chan os.Signal
var hooks = make([]func(), 0) var hooks = make([]func(), 0)
var hookLock sync.Mutex var hookLock sync.RWMutex
func init() { func init() {
signalChan = make(chan os.Signal, 1) signalChan = make(chan os.Signal, 1)
@@ -27,7 +27,9 @@ func init() {
// syscall.SIGQUIT, // syscall.SIGQUIT,
) )
go func() { go func() {
for _ = range signalChan { hookLock.RLock()
defer hookLock.RUnlock()
for range signalChan {
for _, hook := range hooks { for _, hook := range hooks {
hook() hook()
} }