protected override unsafe Errno OnReadHandle(string path, OpenedPathInfo info, byte[] buf,
long offset, out int bytesRead)
{
Logger.WriteLineIf(LogLevel.Verbose, _fslog_props, string.Format(
"OnReadHandle, path={0}, handle={1}, buflength={2}, offset={3}",
path, info.Handle, buf.Length, offset));
var eventArgs = new ReadFileEventArgs(new VirtualRawPath(path), buf,
offset, info.Handle);
if (this.ReadingFile != null)
{
try {
ReadingFile(this, eventArgs);
} catch (Exception ex) {
Logger.WriteLineIf(LogLevel.Error, _log_props, string.Format(
"Exception thrown when handling ReadingFile event. Exception: {0}", ex));
throw;
}
}
bytesRead = eventArgs.BytesRead;
Logger.WriteLineIf(LogLevel.Verbose, _fslog_props,
string.Format("::Read {0} bytes.", bytesRead));
// @TODO FIXME: Now always return 0 but should handle error cases.
return(0);
}
public override void HandleReadingFile(IFilesys sender,
ReadFileEventArgs args)
{
// A read here should be preceded by a path status inquiry.
OpenFileInfo ofi;
VirtualFile vf;
if (_filesysContext.TryGetOpenFileInfo(args.Handle, out ofi))
{
vf = ofi.VirtualFile;
}
else
{
throw new InvalidOperationException();
}
if (vf.OnDemand)
{
Logger.WriteLineIf(LogLevel.Verbose, _log_props,
string.Format("Virtual file suggests on demand retrieval, requesting data..."));
UriTemplateMatch match;
var succ = TryMatchPath(BasicTemplateString,
args.VritualRawPath.PathString, out match);
if (succ)
{
var extraParams = new NameValueCollection();
extraParams.Add(BytesToReadParamName, Convert.ToString(args.Buffer.Length));
extraParams.Add(OffsetParamName, Convert.ToString(args.Offset));
var uri = BasicPathMatch2ReqUri(match, extraParams);
byte[] data = _serverProxy.Get(uri);
// Size of data should be less than or equal to size of args.Buffer
using (var ms = new MemoryStream(args.Buffer)) {
ms.Write(data, 0, data.Length);
}
args.BytesRead = data.Length;
Logger.WriteLineIf(LogLevel.Verbose, _log_props,
string.Format("Successfully read {0} bytes.", args.BytesRead));
}
}
else
{
args.BytesRead =
_fileManager.Read(vf, args.Buffer, args.Offset);
}
}
public override void HandleReadingFile(IFilesys sender,
ReadFileEventArgs args)
{
// A read here should be preceded by a path status inquiry.
OpenFileInfo ofi;
VirtualFile vf;
if (_filesysContext.TryGetOpenFileInfo(args.Handle, out ofi)) {
vf = ofi.VirtualFile;
} else {
throw new InvalidOperationException();
}
if (vf.OnDemand) {
Logger.WriteLineIf(LogLevel.Verbose, _log_props,
string.Format("Virtual file suggests on demand retrieval, requesting data..."));
UriTemplateMatch match;
var succ = TryMatchPath(BasicTemplateString,
args.VritualRawPath.PathString, out match);
if (succ) {
var extraParams = new NameValueCollection();
extraParams.Add(BytesToReadParamName, Convert.ToString(args.Buffer.Length));
extraParams.Add(OffsetParamName, Convert.ToString(args.Offset));
var uri = BasicPathMatch2ReqUri(match, extraParams);
byte[] data = _serverProxy.Get(uri);
// Size of data should be less than or equal to size of args.Buffer
using (var ms = new MemoryStream(args.Buffer)) {
ms.Write(data, 0, data.Length);
}
args.BytesRead = data.Length;
Logger.WriteLineIf(LogLevel.Verbose, _log_props,
string.Format("Successfully read {0} bytes.", args.BytesRead));
}
} else {
args.BytesRead =
_fileManager.Read(vf, args.Buffer, args.Offset);
}
}
protected unsafe override Errno OnReadHandle(string path, OpenedPathInfo info, byte[] buf,
long offset, out int bytesRead)
{
Logger.WriteLineIf(LogLevel.Verbose, _fslog_props, string.Format(
"OnReadHandle, path={0}, handle={1}, buflength={2}, offset={3}",
path, info.Handle, buf.Length, offset));
var eventArgs = new ReadFileEventArgs(new VirtualRawPath(path), buf,
offset, info.Handle);
if (this.ReadingFile != null) {
try {
ReadingFile(this, eventArgs);
} catch (Exception ex) {
Logger.WriteLineIf(LogLevel.Error, _log_props, string.Format(
"Exception thrown when handling ReadingFile event. Exception: {0}", ex));
throw;
}
}
bytesRead = eventArgs.BytesRead;
Logger.WriteLineIf(LogLevel.Verbose, _fslog_props,
string.Format("::Read {0} bytes.", bytesRead));
// @TODO FIXME: Now always return 0 but should handle error cases.
return 0;
}
public void HandleReadingFile(IFilesys sender, ReadFileEventArgs args)
{
throw new NotImplementedException();
}
void FushareFilesys_ReadingFile(object sender, ReadFileEventArgs e)
{
GetEventHandler(sender as IFilesys, e).HandleReadingFile(
sender as IFilesys, e);
}
void FushareFilesys_ReadingFile(object sender, ReadFileEventArgs e)
{
GetEventHandler(sender as IFilesys, e).HandleReadingFile(
sender as IFilesys, e);
}
public void HandleReadingFile(IFilesys sender, ReadFileEventArgs args)
{
throw new NotImplementedException();
}
public abstract void HandleReadingFile(IFilesys sender,
ReadFileEventArgs args);
public abstract void HandleReadingFile(IFilesys sender,
ReadFileEventArgs args);
