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accounts: add walletsNoLock to avoid double read lock (#20655)

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This commit is contained in:
Boqin Qin 2020-02-12 22:20:50 +08:00 committed by GitHub
parent a9614c3c91
commit 5f2002bbcc
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 1 deletions
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7
accounts/manager.go
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@ -141,6 +141,11 @@ func (am *Manager) Wallets() []Wallet {
am.lock.RLock()
defer am.lock.RUnlock()
return am.walletsNoLock()
}
// walletsNoLock returns all registered wallets. Callers must hold am.lock.
func (am *Manager) walletsNoLock() []Wallet {
cpy := make([]Wallet, len(am.wallets))
copy(cpy, am.wallets)
return cpy
@ -155,7 +160,7 @@ func (am *Manager) Wallet(url string) (Wallet, error) {
if err != nil {
return nil, err
}
for _, wallet := range am.Wallets() {
for _, wallet := range am.walletsNoLock() {
if wallet.URL() == parsed {
return wallet, nil
}