/// <summary>
/// Create a storage device for the log
/// </summary>
/// <param name="logPath">Path to file that will store the log (empty for null device)</param>
/// <param name="preallocateFile">Whether we try to preallocate the file on creation</param>
/// <param name="deleteOnClose">Delete files on close</param>
/// <param name="capacity">The maximal number of bytes this storage device can accommondate, or CAPACITY_UNSPECIFIED if there is no such limit</param>
/// <param name="recoverDevice">Whether to recover device metadata from existing files</param>
/// <param name="useIoCompletionPort">Whether we use IO completion port with polling</param>
/// <returns>Device instance</returns>
public static IDevice CreateLogDevice(string logPath, bool preallocateFile = false, bool deleteOnClose = false, long capacity = CAPACITY_UNSPECIFIED, bool recoverDevice = false, bool useIoCompletionPort = false)
{
IDevice logDevice;
if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
logDevice = new ManagedLocalStorageDevice(logPath, preallocateFile, deleteOnClose, capacity, recoverDevice);
}
else
{
logDevice = new LocalStorageDevice(logPath, preallocateFile, deleteOnClose, true, capacity, recoverDevice, useIoCompletionPort);
}
return(logDevice);
}
/// <summary>
/// Create a storage device for the object log (for non-blittable objects)
/// </summary>
/// <param name="logPath">Path to file that will store the log (empty for null device)</param>
/// <param name="preallocateFile">Whether we try to preallocate the file on creation</param>
/// <param name="deleteOnClose">Delete files on close</param>
/// <returns>Device instance</returns>
public static IDevice CreateObjectLogDevice(string logPath, bool preallocateFile = true, bool deleteOnClose = false)
{
IDevice logDevice = new NullDevice();
if (String.IsNullOrWhiteSpace(logPath))
{
return(logDevice);
}
#if DOTNETCORE
if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
logDevice = new ManagedLocalStorageDevice(logPath + ".obj.log", preallocateFile, deleteOnClose);
}
else
#endif
{
logDevice = new LocalStorageDevice(logPath + ".obj.log", preallocateFile, deleteOnClose);
}
return(logDevice);
}
/// <summary>
/// Create a storage device for the log
/// </summary>
/// <param name="logPath">Path to file that will store the log (empty for null device)</param>
/// <param name="segmentSize">Size of each chunk of the log</param>
/// <param name="deleteOnClose">Delete files on close</param>
/// <returns>Device instance</returns>
public static IDevice CreateLogDevice(string logPath, long segmentSize = 1L << 30, bool deleteOnClose = false)
{
IDevice logDevice = new NullDevice();
if (String.IsNullOrWhiteSpace(logPath))
{
return(logDevice);
}
#if DOTNETCORE
if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
logDevice = new ManagedLocalStorageDevice(logPath + ".log", segmentSize, true, false, deleteOnClose);
}
#else
{
logDevice = new LocalStorageDevice(logPath + ".log", segmentSize, true, false, deleteOnClose);
}
#endif
return(logDevice);
}
/// <summary>
/// Create a storage device for the log
/// </summary>
/// <param name="logPath">Path to file that will store the log (empty for null device)</param>
/// <param name="preallocateFile">Whether we try to preallocate the file on creation</param>
/// <param name="deleteOnClose">Delete files on close</param>
/// <param name="capacity">The maximal number of bytes this storage device can accommondate, or CAPACITY_UNSPECIFIED if there is no such limit</param>
/// <param name="recoverDevice">Whether to recover device metadata from existing files</param>
/// <returns>Device instance</returns>
public static IDevice CreateLogDevice(string logPath, bool preallocateFile = true, bool deleteOnClose = false, long capacity = CAPACITY_UNSPECIFIED, bool recoverDevice = false)
{
if (string.IsNullOrWhiteSpace(logPath))
{
return(new NullDevice());
}
IDevice logDevice;
#if DOTNETCORE
if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
logDevice = new ManagedLocalStorageDevice(logPath, preallocateFile, deleteOnClose, capacity, recoverDevice);
}
else
#endif
{
logDevice = new LocalStorageDevice(logPath, preallocateFile, deleteOnClose, true, capacity, recoverDevice);
}
return(logDevice);
}
