/// <summary>
/// 创建文件系统。
/// </summary>
/// <param name="fullPath">要创建的文件系统的完整路径。</param>
/// <param name="access">要创建的文件系统的访问方式。</param>
/// <param name="stream">要创建的文件系统的文件系统流。</param>
/// <param name="maxFileCount">要创建的文件系统的最大文件数量。</param>
/// <param name="maxBlockCount">要创建的文件系统的最大块数据数量。</param>
/// <returns>创建的文件系统。</returns>
public static FileSystem Create(string fullPath, FileSystemAccess access, FileSystemStream stream, int maxFileCount, int maxBlockCount)
{
if (maxFileCount <= 0)
{
throw new GameFrameworkException("Max file count is invalid.");
}
if (maxBlockCount <= 0)
{
throw new GameFrameworkException("Max block count is invalid.");
}
if (maxFileCount > maxBlockCount)
{
throw new GameFrameworkException("Max file count can not larger than max block count.");
}
FileSystem fileSystem = new FileSystem(fullPath, access, stream);
fileSystem.m_HeaderData = new HeaderData(maxFileCount, maxBlockCount);
CalcOffsets(fileSystem);
Utility.Marshal.StructureToBytes(fileSystem.m_HeaderData, HeaderDataSize, s_CachedBytes);
try
{
stream.Write(s_CachedBytes, 0, HeaderDataSize);
stream.SetLength(fileSystem.m_FileDataOffset);
return(fileSystem);
}
catch
{
fileSystem.Shutdown();
return(null);
}
}
/// <summary>
/// 销毁文件系统。
/// </summary>
/// <param name="fileSystem">要销毁的文件系统。</param>
/// <param name="deletePhysicalFile">是否删除文件系统对应的物理文件。</param>
public void DestroyFileSystem(IFileSystem fileSystem, bool deletePhysicalFile)
{
if (fileSystem == null)
{
throw new GameFrameworkException("File system is invalid.");
}
FileSystem fileSystemImpl = (FileSystem)fileSystem;
string[] names = fileSystemImpl.GetNames();
foreach (string name in names)
{
UnregisterFileSystem(name, fileSystemImpl);
}
string fullPath = fileSystemImpl.FullPath;
fileSystemImpl.Shutdown();
m_FileSystems.Remove(fullPath);
if (deletePhysicalFile && File.Exists(fullPath))
{
File.Delete(fullPath);
}
}
