本文整理汇总了C#中IStream.ReadBlock方法的典型用法代码示例。如果您正苦于以下问题：C# IStream.ReadBlock方法的具体用法？C# IStream.ReadBlock怎么用？C# IStream.ReadBlock使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IStream的用法示例。
在下文中一共展示了IStream.ReadBlock方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Insert
/// <summary>
/// Inserts space into a stream by copying everything back by a certain number of bytes.
/// </summary>
/// <param name="stream">The stream to insert space into.</param>
/// <param name="size">The size of the space to insert.</param>
/// <param name="fill">The byte to fill the inserted space with. See <see cref="Fill"/>.</param>
public static void Insert(IStream stream, int size, byte fill)
{
if (size == 0)
return;
if (size < 0)
throw new ArgumentException("The size of the data to insert must be >= 0");
if (stream.Position == stream.Length)
return; // Seeking past the end automatically increases the file size
const int BufferSize = 0x1000;
byte[] buffer = new byte[BufferSize];
int endPos = (int)stream.Position;
int oldLength = (int)stream.Length;
int pos = Math.Max(endPos, oldLength - BufferSize);
while (pos >= endPos)
{
int read = Math.Min(BufferSize, oldLength - pos);
stream.SeekTo(pos);
stream.ReadBlock(buffer, 0, read);
stream.SeekTo(pos + size);
stream.WriteBlock(buffer, 0, read);
pos -= read;
}
stream.SeekTo(endPos);
Fill(stream, fill, size);
}示例2: Copy
/// <summary>
/// Copies data between two locations in the same stream.
/// The source and destination areas may overlap.
/// </summary>
/// <param name="stream">The stream to copy data in.</param>
/// <param name="originalPos">The position of the block of data to copy.</param>
/// <param name="targetPos">The position to copy the block to.</param>
/// <param name="size">The number of bytes to copy.</param>
public static void Copy(IStream stream, long originalPos, long targetPos, long size)
{
if (size == 0)
return;
if (size < 0)
throw new ArgumentException("The size of the data to copy must be >= 0");
const int BufferSize = 0x1000;
var buffer = new byte[BufferSize];
long remaining = size;
while (remaining > 0)
{
var read = (int) Math.Min(BufferSize, remaining);
if (targetPos > originalPos)
stream.SeekTo(originalPos + remaining - read);
else
stream.SeekTo(originalPos + size - remaining);
stream.ReadBlock(buffer, 0, read);
if (targetPos > originalPos)
stream.SeekTo(targetPos + remaining - read);
else
stream.SeekTo(targetPos + size - remaining);
stream.WriteBlock(buffer, 0, read);
remaining -= read;
}
}