/// <summary>
/// 根据期望大小获得一个buffer.
/// autoSetValidLength为true则默认设置validLength为期望大小,否则设置为0.
/// </summary>
/// <param name="size">期望大小</param>
/// <param name="autoSetValidLength">是否validLength会自动标记为size</param>
/// <returns></returns>
public ByteBuffer GetBuffer(long size, bool autoSetValidLength = false)
{
ByteBuffer bbf = null;
if (size > maxBlockSize)
{
ByteBufferPool.countNew++;
DxDebug.LogConsole("ByteBufferPools.GetBuffer():申请了一块过大的内存,size=" + size);
//这个内存块太了，所以就不作缓存了
bbf = new ByteBuffer(size);
}
else
{
ByteBufferPool bbPool = ChoosePool(size);
bbf = bbPool.GetBuffer((int)size);
}
if (autoSetValidLength)
{
bbf.validLength = (int)size;
}
else
{
bbf.validLength = 0;
}
return(bbf);
}
/// <summary>
/// 构造
/// </summary>
public ByteBufferPools()
{
long curBlockSize = mixBlockSize;
while (curBlockSize <= maxBlockSize)
{
//统一使用4M好了
ByteBufferPool bfPool = new ByteBufferPool(curBlockSize, 4 * 1024 * 1024);
curBlockSize = 2 * curBlockSize;
_listPool.Add(bfPool);
}
}