/// <summary>
/// 新建对象数组
/// </summary>
/// <param name="identity">自增值</param>
private void newArray(int identity)
{
int length = array.Length << 1;
valueLock[] newArray = new valueLock[length > identity ? length : getArrayLength(identity)];
array.CopyTo(newArray, 0);
array = newArray;
}
/// <summary>
/// 加载日志添加对象
/// </summary>
/// <param name="value">添加的对象</param>
/// <param name="logSize">日志字节长度</param>
protected override void loadInsert(valueType value, int logSize)
{
int identity = value.PrimaryKey;
if (identity > maxIdentity)
{
if (count == currentIndex)
{
if (array == null)
{
array = new valueLock[identityArrayLength];
}
else if (currentIndex == array.Length)
{
valueLock[] newArray = new valueLock[array.Length << 1];
array.CopyTo(newArray, 0);
array = newArray;
}
}
else if (currentIndex == array.Length)
{
if ((count << 1) > array.Length)
{
valueLock[] newArray = new valueLock[array.Length << 1];
currentIndex = 0;
foreach (valueLock cacheValue in array)
{
if (cacheValue.NotDelete)
{
newArray[currentIndex++] = cacheValue;
}
}
array = newArray;
}
else
{
for (currentIndex = 0; array[currentIndex].NotDelete; ++currentIndex)
{
;
}
for (int index = currentIndex; currentIndex != count; array[currentIndex++] = array[index])
{
while (array[++index].IsDelete)
{
;
}
}
}
}
array[currentIndex++].Set(value, logSize);
++count;
maxIdentity = identity;
}
else
{
log.Error.Add("自增值错误 " + identity.toString() + " <= " + maxIdentity.toString(), false, false);
}
}
/// <summary>
/// 删除对象
/// </summary>
/// <param name="key">关键字</param>
/// <returns>被删除对象+日志字节长度,失败返回null</returns>
protected override keyValue <valueType, int> delete(keyType key)
{
valueLock cacheValue = new valueLock();
Monitor.Enter(cacheLock);
try
{
if (values != null && values.TryGetValue(key, out cacheValue))
{
values.Remove(key);
}
}
finally { Monitor.Exit(cacheLock); }
return(new keyValue <valueType, int>(cacheValue.Value, cacheValue.LogSize));
}
/// <summary>
/// 加载日志添加对象
/// </summary>
/// <param name="value">添加的对象</param>
/// <param name="logSize">日志字节长度</param>
protected override void loadInsert(valueType value, int logSize)
{
int identity = value.PrimaryKey;
if (array == null)
{
array = new valueLock[getArrayLength(identity)];
}
else if (identity >= array.Length)
{
newArray(identity);
}
count += array[identity].SetIfNull(value, logSize);
if (identity > currentIdentity)
{
currentIdentity = identity;
}
}
/// <summary>
/// 根据关键字获取对象
/// </summary>
/// <param name="key">关键字</param>
/// <returns>对象数据,失败返回null</returns>
private valueType get(keyType key)
{
valueLock valueLock = getNoLock(key);
if (valueLock.Value == null)
{
Monitor.Enter(cacheLock);
try
{
if (values != null)
{
values.TryGetValue(key, out valueLock);
}
}
finally { Monitor.Exit(cacheLock); }
}
return(valueLock.Value);
}
/// <summary>
/// 获取操作队列锁
/// </summary>
/// <param name="key">关键字</param>
/// <returns>操作队列锁,失败返回null</returns>
protected override object getLock(keyType key)
{
valueLock value = getNoLock(key);
if (value.Value != null)
{
return(value.Lock);
}
Monitor.Enter(cacheLock);
try
{
if (values != null && values.TryGetValue(key, out value))
{
return(value.Lock);
}
}
finally { Monitor.Exit(cacheLock); }
return(null);
}
/// <summary>
/// 根据关键字获取数据
/// </summary>
/// <param name="key">关键字</param>
/// <param name="value">数据对象</param>
/// <returns>是否存在对象</returns>
protected override bool get(keyType key, ref valueType value)
{
valueLock valueLock = getNoLock(key);
if (valueLock.Value == null)
{
Monitor.Enter(cacheLock);
if (values != null)
{
values.TryGetValue(key, out valueLock);
}
Monitor.Exit(cacheLock);
}
if (valueLock.Value != null)
{
value = valueLock.Value;
return(true);
}
return(false);
}
