/// <summary>
/// Initializes a new instance of the TinyMemoryMappedFile class.
/// </summary>
/// <param name="memoryMappedFile">An instance of a memory mapped file</param>
/// <param name="fileWaitHandle">A manual reset EventWaitHandle that is to be used to signal file changes</param>
/// <param name="maxFileSize">The maximum amount of data that can be written to the file memory mapped file</param>
/// <param name="readWriteLock">A read/write lock that will be used to control access to the memory mapped file</param>
/// <param name="disposeLock">Set to true if the read/write lock is to be disposed when this instance is disposed</param>
public TinyMemoryMappedFile(MemoryMappedFile memoryMappedFile, EventWaitHandle fileWaitHandle, long maxFileSize, ITinyReadWriteLock readWriteLock, bool disposeLock)
{
this.readWriteLock = readWriteLock ?? throw new ArgumentNullException(nameof(readWriteLock));
this.memoryMappedFile = memoryMappedFile ?? throw new ArgumentNullException(nameof(memoryMappedFile));
this.fileWaitHandle = fileWaitHandle ?? throw new ArgumentNullException(nameof(fileWaitHandle));
this.disposeLock = disposeLock;
MaxFileSize = maxFileSize;
disposeWaitHandle = new EventWaitHandle(false, EventResetMode.ManualReset);
fileWatcherTask = Task.Run(() => FileWatcher());
}
/// <summary>
/// Initializes a new instance of the TinyMemoryMappedFile class.
/// </summary>
/// <param name="memoryMappedFile">An instance of a memory mapped file</param>
/// <param name="fileWaitHandle">A manual reset EventWaitHandle that is to be used to signal file changes</param>
/// <param name="maxFileSize">The maximum amount of data that can be written to the file memory mapped file</param>
/// <param name="readWriteLock">A read/write lock that will be used to control access to the memory mapped file</param>
/// <param name="disposeLock">Set to true if the read/write lock is to be disposed when this instance is disposed</param>
public TinyMemoryMappedFile(MemoryMappedFile memoryMappedFile, EventWaitHandle fileWaitHandle, Int64 maxFileSize, ITinyReadWriteLock readWriteLock, Boolean disposeLock)
{
_readWriteLock = readWriteLock ?? throw new ArgumentNullException(nameof(readWriteLock));
_memoryMappedFile = memoryMappedFile ?? throw new ArgumentNullException(nameof(memoryMappedFile));
_fileWaitHandle = fileWaitHandle ?? throw new ArgumentNullException(nameof(fileWaitHandle));
_disposeLock = disposeLock;
MaxFileSize = maxFileSize;
_disposeWaitHandle = new EventWaitHandle(false, EventResetMode.ManualReset);
_fileWatcherTask = Task.Run(FileWatcher);
}
public TinyMemoryMappedFile(MemoryMappedFile memoryMappedFile, EventWaitHandle waitHandle, long maxFileSize, ITinyReadWriteLock readWriteLock, bool disposeLock)
{
if (maxFileSize <= 0)
{
throw new ArgumentException("Max file size can not be less than 1 byte", nameof(maxFileSize));
}
this.maxFileSize = maxFileSize;
this.readWriteLock = readWriteLock;
this.disposeLock = disposeLock;
this.memoryMappedFile = memoryMappedFile;
this.waitHandle = waitHandle;
fileWatcherTask = Task.Factory.StartNew(FileWatcher);
}
public TinyMemoryMappedFile(string name, long maxFileSize, ITinyReadWriteLock readWriteLock, bool disposeLock)
{
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentException("File must be named", nameof(name));
}
if (maxFileSize <= 0)
{
throw new ArgumentException("Max file size can not be less than 1 byte", nameof(maxFileSize));
}
this.maxFileSize = maxFileSize;
this.readWriteLock = readWriteLock;
this.disposeLock = disposeLock;
memoryMappedFile = CreateOrOpenMemoryMappedFile(name, maxFileSize);
waitHandle = CreateEventWaitHandle(name);
fileWatcherTask = Task.Factory.StartNew(FileWatcher);
}
/// <summary>
/// Initializes a new instance of the TinyMemoryMappedFile class.
/// </summary>
/// <param name="name">A system wide unique name, the name will have a prefix appended before use</param>
/// <param name="maxFileSize">The maximum amount of data that can be written to the file memory mapped file</param>
/// <param name="readWriteLock">A read/write lock that will be used to control access to the memory mapped file</param>
/// <param name="disposeLock">Set to true if the read/write lock is to be disposed when this instance is disposed</param>
public TinyMemoryMappedFile(string name, long maxFileSize, ITinyReadWriteLock readWriteLock, bool disposeLock)
: this(CreateOrOpenMemoryMappedFile(name, maxFileSize), CreateEventWaitHandle(name), maxFileSize, readWriteLock, disposeLock)
{
}
/// <summary>
/// Initializes a new instance of the TinyMemoryMappedFile class.
/// </summary>
/// <param name="name">A system wide unique name, the name will have a prefix appended before use</param>
/// <param name="maxFileSize">The maximum amount of data that can be written to the file memory mapped file</param>
/// <param name="readWriteLock">A read/write lock that will be used to control access to the memory mapped file</param>
/// <param name="disposeLock">Set to true if the read/write lock is to be disposed when this instance is disposed</param>
public TinyMemoryMappedFile(String name, Int64 maxFileSize, ITinyReadWriteLock readWriteLock, Boolean disposeLock)
: this(CreateOrOpenMemoryMappedFile(name, maxFileSize), CreateEventWaitHandle(name), maxFileSize, readWriteLock, disposeLock)
{
}
