public async Task ReleaseAsync()
{
if (_lockData == null)
{
throw new ApplicationException("You do not own the lock: " + _basePath);
}
int newLockCount = _lockData.CountDecrement();
if (newLockCount > 0)
{
return;
}
if (newLockCount < 0)
{
throw new ApplicationException("Lock count has gone negative for lock: " + _basePath);
}
try
{
// 释放锁
await _internals.ReleaseLockAsync(_lockData.LockPath);
}
finally
{
_lockData = null;
}
}
/// <summary>
/// 获取锁
/// </summary>
/// <param name="timeout">超时时间(毫秒)</param>
/// <returns>成功返回true,超时返回false</returns>
private async Task <bool> InternalLockAsync(int timeout)
{
if (_lockData != null)
{
_lockData.CountIncrement();
return(true);
}
// 尝试获取锁
var lockPath = await _internals.AttemptLockAsync(timeout);
// 成功获取锁
if (!string.IsNullOrEmpty(lockPath))
{
_lockData = new LockData(lockPath);
return(true);
}
return(false);
}
