-
Notifications
You must be signed in to change notification settings - Fork 244
/
addrlock.go
40 lines (33 loc) · 1.04 KB
/
addrlock.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
// copy of go-ethereum/internal/ethapi/addrlock.go
package transactions
import (
"sync"
"github.com/status-im/status-go/eth-node/types"
)
// AddrLocker provides locks for addresses
type AddrLocker struct {
mu sync.Mutex
locks map[types.Address]*sync.Mutex
}
// lock returns the lock of the given address.
func (l *AddrLocker) lock(address types.Address) *sync.Mutex {
l.mu.Lock()
defer l.mu.Unlock()
if l.locks == nil {
l.locks = make(map[types.Address]*sync.Mutex)
}
if _, ok := l.locks[address]; !ok {
l.locks[address] = new(sync.Mutex)
}
return l.locks[address]
}
// LockAddr locks an account's mutex. This is used to prevent another tx getting the
// same nonce until the lock is released. The mutex prevents the (an identical nonce) from
// being read again during the time that the first transaction is being signed.
func (l *AddrLocker) LockAddr(address types.Address) {
l.lock(address).Lock()
}
// UnlockAddr unlocks the mutex of the given account.
func (l *AddrLocker) UnlockAddr(address types.Address) {
l.lock(address).Unlock()
}