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accounts: fix uses of sync.RWMutex

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RWMutexes must be write-locked when writing in order
to actually protect the writes.
This commit is contained in:
Felix Lange 2015-03-08 00:36:06 +01:00
parent afc530ea41
commit d6a7332993
1 changed files with 6 additions and 4 deletions
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10
accounts/account_manager.go
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@ -111,9 +111,9 @@ func (am *AccountManager) SignLocked(a Account, keyAuth string, toSign []byte) (
if err != nil { if err != nil {
return nil, err return nil, err
} }
am.mutex.RLock() am.mutex.Lock()
am.unlockedKeys[string(a.Address)] = *key am.unlockedKeys[string(a.Address)] = *key
am.mutex.RUnlock() am.mutex.Unlock()
go unlockLater(am, a.Address) go unlockLater(am, a.Address)
signature, err = crypto.Sign(toSign, key.PrivateKey) signature, err = crypto.Sign(toSign, key.PrivateKey)
return signature, err return signature, err
@ -147,8 +147,10 @@ func unlockLater(am *AccountManager, addr []byte) {
select { select {
case <-time.After(am.unlockTime): case <-time.After(am.unlockTime):
} }
am.mutex.RLock() am.mutex.Lock()
// TODO: how do we know the key is actually gone from memory? // TODO: how do we know the key is actually gone from memory?
delete(am.unlockedKeys, string(addr)) delete(am.unlockedKeys, string(addr))
am.mutex.RUnlock() am.mutex.Unlock()
}
} }