internal void Free(StringLockInfo item)
{
p_Locks.Remove(item);
item.IsDisposed = true;
item.Owner = null;
//if (!p_Locks.Remove(item))
// throw new Exception(LocalResource.StringLockInfoCollection_Error_1);
//item.IsDisposed = true;
//item.Owner = null;
//p_Frees.Add(item);
}
private static bool ReadIsLock(StringLockInfo value, string key)
{
//key已锁定,如果不是读锁则已锁定
if (string.Equals(value.Key, key, StringComparison.OrdinalIgnoreCase))
{
return(!value.IsRead);
}
//已有key的子键锁定,如果不是读锁则已锁定
if (value.Key.IndexOf(key + ".") == 0)
{
return(!value.IsRead);
}
//key是锁定键的子键,如果不是读锁则已锁定
if (key.IndexOf(value.Key + ".") == 0)
{
return(!value.IsRead);
}
return(false);
}
private static bool WriteIsLocked(StringLockInfo value, string key)
{
//key已锁定,已锁定
if (string.Equals(value.Key, key, StringComparison.OrdinalIgnoreCase))
{
return(true);
}
//已有key的子键锁定,已锁定
if (value.Key.IndexOf(key + ".") == 0)
{
return(true);
}
//key是锁定键的子键,已锁定
if (key.IndexOf(value.Key + ".") == 0)
{
return(true);
}
return(false);
}
private bool TryGet(IEnumerable <string> readlocks, IEnumerable <string> writelocks, IList <StringLockInfo> locks)
{
if (readlocks != null)
{
foreach (var k in readlocks)
{
if (!StringLockHelper.TryLockRead(p_Locks, k))
{
return(false);
}
}
}
if (writelocks != null)
{
foreach (var k in writelocks)
{
if (!StringLockHelper.TryLockWrite(p_Locks, k))
{
return(false);
}
}
}
if (readlocks != null)
{
foreach (var k in readlocks)
{
StringLockInfo a = GetFromFree(k, true);
p_Locks.Add(a);
locks.Add(a);
}
}
if (writelocks != null)
{
foreach (var k in writelocks)
{
StringLockInfo a = GetFromFree(k, false);
p_Locks.Add(a);
locks.Add(a);
}
}
return(true);
}