/// <summary>
/// 获取当前的数据
/// </summary>
/// <returns></returns>
public SendBuffer Dequeue()
{
SendBuffer sendGram = SendBuffer.NullBuffer;
SpinLockEx.ReliableEnter(ref m_LockFlushAndPending);
try
{
if (m_PendingBuffer.Count > 0)
{
sendGram = m_PendingBuffer.Dequeue(); // 再给出数据
}
else if (m_FlushBuffer.IsNull == false)
{
sendGram = m_FlushBuffer; // 再给出数据
m_FlushBuffer = SendBuffer.NullBuffer;
}
// 移去已发送的数据的大小
m_WaitSendSize -= sendGram.Length;
}
catch (Exception e) { Logs.FatalError("SendQueue->Dequeue: Occurred error when dequeuing the data {0} ", e.Message); }
finally
{
m_LockFlushAndPending.Exit();
}
return(sendGram);
}
/// <summary>
/// 清除数据
/// </summary>
public void Clear()
{
SpinLockEx.ReliableEnter(ref m_LockFlushAndPending);
try
{
while (m_PendingBuffer.Count > 0)
{
m_PendingBuffer.Dequeue().Release();
}
if (m_FlushBuffer.IsNull == false)
{
m_FlushBuffer.Release();
m_FlushBuffer = SendBuffer.NullBuffer;
}
// 清空
m_WaitSendSize = 0;
}
finally
{
m_LockFlushAndPending.Exit();
}
}
/// <summary>
/// 如果数据满了,且缓冲区内的数据是空的则返回需要发送的数据
/// 调用Enqueue(...)后调用Dequeue(...),不能直接调用Dequeue(...)
/// </summary>
/// <param name="byteBuffer"></param>
/// <param name="iOffset"></param>
/// <param name="iLength"></param>
/// <returns></returns>
public void Enqueue(byte[] byteBuffer, long iOffset, long iLength)
{
if (byteBuffer == null)
throw new ArgumentNullException("byteBuffer", "SendQueue.Enqueue(...) - byteBuffer == null error!");
if (iOffset < 0 || iOffset >= byteBuffer.Length)
throw new Exception("SendQueue.Enqueue(...) - iOffset < 0 || iOffset >= byteBuffer.Length error!");
if (iLength < 0 || iLength > byteBuffer.Length) // 如果iLength == 0就返回空,如果iLength == 0就跳过
throw new Exception("SendQueue.Enqueue(...) - iLength < 0 || iLength > byteBuffer.Length error!");
if ((byteBuffer.Length - iOffset) < iLength)
throw new Exception("SendQueue.Enqueue(...) - ( byteBuffer.Length - iOffset ) < iLength error!");
SpinLockEx.ReliableEnter(ref m_LockFlushAndPending);
try
{
do
{
if (m_FlushBuffer.IsNull == true)
{
// nothing yet buffered
m_FlushBuffer = SendBuffer.Instance();
if (m_FlushBuffer.IsNull == true)
throw new Exception("SendQueue.Enqueue(...) - m_FlushBuffer.IsNull == true error!");
}
// 当前已经写入的字节
long iBytesWritten = m_FlushBuffer.Write(byteBuffer, iOffset, iLength);
iOffset += iBytesWritten;
iLength -= iBytesWritten;
// 写入需要发送的数据的大小
m_WaitSendSize += iBytesWritten;
// 如果数据没有满,且数据写入完毕则退出,返回空,不添加到集合内
if (m_FlushBuffer.IsFull == true)
{
// 如果满了添加到集合内的尾处
m_PendingBuffer.Enqueue(m_FlushBuffer);
m_FlushBuffer = SendBuffer.NullBuffer; // 置空再次请求缓存
}
} while (iLength > 0);
}
catch (Exception e)
{
Logs.Error("SendQueue->Enqueue: Occurred error when enqueuing the data {0} ", e);
}
finally
{
m_LockFlushAndPending.Exit();
}
}
/// <summary>
/// 获取当前的数据
/// </summary>
/// <returns></returns>
public SendBuffer Dequeue()
{
SendBuffer sendGram = SendBuffer.NullBuffer;
SpinLockEx.ReliableEnter(ref m_LockFlushAndPending);
try
{
if (m_PendingBuffer.Count > 0)
{
sendGram = m_PendingBuffer.Dequeue(); // 再给出数据
}
else if (m_FlushBuffer.IsNull == false)
{
sendGram = m_FlushBuffer; // 再给出数据
m_FlushBuffer = SendBuffer.NullBuffer;
}
// 移去已发送的数据的大小
m_WaitSendSize -= sendGram.Length;
}
catch (Exception e) { Logs.FatalError("SendQueue->Dequeue: Occurred error when dequeuing the data {0} ", e.Message); }
finally
{
m_LockFlushAndPending.Exit();
}
return sendGram;
}
/// <summary>
/// 清除数据
/// </summary>
public void Clear()
{
SpinLockEx.ReliableEnter(ref m_LockFlushAndPending);
try
{
while (m_PendingBuffer.Count > 0)
m_PendingBuffer.Dequeue().Release();
if (m_FlushBuffer.IsNull == false)
{
m_FlushBuffer.Release();
m_FlushBuffer = SendBuffer.NullBuffer;
}
// 清空
m_WaitSendSize = 0;
}
finally
{
m_LockFlushAndPending.Exit();
}
}
// 可能是windows操作系统的最大可发送的字节数
//private const int PENDING_MAX_BUFFER = 96 * 1024;
#endregion
/// <summary>
/// 如果数据满了,且缓冲区内的数据是空的则返回需要发送的数据
/// 调用Enqueue(...)后调用Dequeue(...),不能直接调用Dequeue(...)
/// </summary>
/// <param name="byteBuffer"></param>
/// <param name="iOffset"></param>
/// <param name="iLength"></param>
/// <returns></returns>
public void Enqueue(byte[] byteBuffer, long iOffset, long iLength)
{
if (byteBuffer == null)
{
throw new ArgumentNullException("byteBuffer", "SendQueue.Enqueue(...) - byteBuffer == null error!");
}
if (iOffset < 0 || iOffset >= byteBuffer.Length)
{
throw new Exception("SendQueue.Enqueue(...) - iOffset < 0 || iOffset >= byteBuffer.Length error!");
}
if (iLength < 0 || iLength > byteBuffer.Length) // 如果iLength == 0就返回空,如果iLength == 0就跳过
{
throw new Exception("SendQueue.Enqueue(...) - iLength < 0 || iLength > byteBuffer.Length error!");
}
if ((byteBuffer.Length - iOffset) < iLength)
{
throw new Exception("SendQueue.Enqueue(...) - ( byteBuffer.Length - iOffset ) < iLength error!");
}
SpinLockEx.ReliableEnter(ref m_LockFlushAndPending);
try
{
do
{
if (m_FlushBuffer.IsNull == true)
{
// nothing yet buffered
m_FlushBuffer = SendBuffer.Instance();
if (m_FlushBuffer.IsNull == true)
{
throw new Exception("SendQueue.Enqueue(...) - m_FlushBuffer.IsNull == true error!");
}
}
// 当前已经写入的字节
long iBytesWritten = m_FlushBuffer.Write(byteBuffer, iOffset, iLength);
iOffset += iBytesWritten;
iLength -= iBytesWritten;
// 写入需要发送的数据的大小
m_WaitSendSize += iBytesWritten;
// 如果数据没有满,且数据写入完毕则退出,返回空,不添加到集合内
if (m_FlushBuffer.IsFull == true)
{
// 如果满了添加到集合内的尾处
m_PendingBuffer.Enqueue(m_FlushBuffer);
m_FlushBuffer = SendBuffer.NullBuffer; // 置空再次请求缓存
}
} while (iLength > 0);
}
catch (Exception e)
{
Logs.Error("SendQueue->Enqueue: Occurred error when enqueuing the data {0} ", e);
}
finally
{
m_LockFlushAndPending.Exit();
}
}