public void UpdateSharedMemoryKey(String sharedMemoryKey)
{
if (mappedOverlayStream != null)
{
mappedOverlayStream.Close();
mappedOverlayStream = null;
}
shmemKey = sharedMemoryKey;
}
protected void Close()
{
if (_notifyEvent != null)
{
_notifyEvent.Close();
_notifyEvent.Dispose();
_notifyEvent = null;
}
if (_mutex != null)
{
_mutex.Close();
_mutex.Dispose();
_mutex = null;
}
if (_stream != null)
{
_stream.Close();
_stream = null;
}
if (_memMappedFile != null)
{
_memMappedFile.Dispose();
_memMappedFile = null;
}
}
public void Dispose()
{
writer.Close();
writer.Dispose();
stream.Close();
stream.Dispose();
memoryMappedFile.Dispose();
}
public void Close()
{
sharedmem_mutex.Close();
message_handled.Close();
message_wait.Close();
phile_stream.Close();
phile.Dispose();
}
public void Dispose()
{
using (GetLock())
{
_memoryMappedViewHandle = IntPtr.Zero;
if (!string.IsNullOrEmpty(_balanceFileName))
{
if (_balanceFileWriter != null)
{
_balanceFileWriter.Close();
_balanceFileWriter.Dispose();
_balanceFileWriter = null;
}
if (_balanceFile != null)
{
_balanceFile.Close();
_balanceFile.Dispose();
_balanceFile = null;
}
}
if (_memoryMappedViewStream != null)
{
_memoryMappedViewStream.Close();
_memoryMappedViewStream.Dispose();
_memoryMappedViewStream = null;
}
if (_memoryMappedViewAccessor != null)
{
_memoryMappedViewAccessor.Dispose();
_memoryMappedViewAccessor = null;
}
if (_memoryMappedFile != null)
{
_memoryMappedFile.Dispose();
_memoryMappedFile = null;
}
if (_onDataUpdatedEvent != null)
{
_onDataUpdatedEvent.Close();
_onDataUpdatedEvent.Dispose();
_onDataUpdatedEvent = null;
}
}
if (_onWriteLockMutex != null)
{
_onWriteLockMutex.Close();
_onWriteLockMutex.Dispose();
_onWriteLockMutex = null;
}
}
public void Dispose()
{
if (!_disposed)
{
_stream.Close();
_stream.Dispose();
_file.Dispose();
_disposed = true;
}
}
public void DisposeMemoryMappedFile()
{
if (stream != null)
{
stream.Close();
}
if (memoryFile != null)
{
memoryFile.Dispose();
}
}
public static void WriteToMMF(string[] lines)
{
const int mmfMaxSize = 16 * 1024 * 1024; // allocated memory for this memory mapped file (bytes)
const int mmfViewSize = 16 * 1024 * 1024; // how many bytes of the allocated memory can this process access
MemoryMappedFile mmf = MemoryMappedFile.CreateOrOpen("ClipboardAppMemoryMappedFile", mmfMaxSize, MemoryMappedFileAccess.ReadWrite);
MemoryMappedViewStream mmvStream = mmf.CreateViewStream(0, mmfViewSize);
BinaryFormatter formatter = new BinaryFormatter();
formatter.Serialize(mmvStream, lines);
mmvStream.Seek(0, SeekOrigin.Begin);
mmvStream.Close();
}
public void ChangeImage(byte[] pixeldata, byte[] bmiInfoHeader)
{
try
{
MemoryMappedFile mmap = MemoryMappedFile.CreateOrOpen("AmbiBox_XBMC_SharedMemory", pixeldata.Length + 11,
MemoryMappedFileAccess.ReadWrite, MemoryMappedFileOptions.None, null, HandleInheritability.Inheritable);
MemoryMappedViewStream viewStream = mmap.CreateViewStream();
Stopwatch sw = new Stopwatch();
sw.Start();
while (true)
{
viewStream.Seek(0, SeekOrigin.Begin);
if (viewStream.ReadByte() == 0xF8)
{
break;
}
if (sw.ElapsedMilliseconds > coreObject.ambiBoxChangeImageDelay)
{
sw.Stop();
viewStream.Dispose();
mmap.Dispose();
return;
}
}
viewStream.Seek(0, SeekOrigin.Begin);
viewStream.WriteByte(0xF0); // Begin
viewStream.WriteByte((byte)(coreObject.GetCaptureWidth() & 0xff)); // Width
viewStream.WriteByte((byte)((coreObject.GetCaptureWidth() >> 8) & 0xff)); // Width
viewStream.WriteByte((byte)(coreObject.GetCaptureHeight() & 0xff)); // Height
viewStream.WriteByte((byte)((coreObject.GetCaptureHeight() >> 8) & 0xff)); // Height
viewStream.WriteByte((byte)(int)(coreObject.GetCaptureWidth() / coreObject.GetCaptureHeight() * 100)); // Aspect ratio
viewStream.WriteByte(0x00); // Image format (RGBA)
viewStream.WriteByte((byte)(pixeldata.Length & 0xff)); // Length
viewStream.WriteByte((byte)((pixeldata.Length >> 8) & 0xff)); // Length
viewStream.WriteByte((byte)((pixeldata.Length >> 16) & 0xff)); // Length
viewStream.WriteByte((byte)((pixeldata.Length >> 24) & 0xff)); // Length
viewStream.Write(pixeldata, 0, pixeldata.Length); // Copy pixeldata into mmap
viewStream.Close();
}
catch (Exception e)
{
//Log.Error("Error occurred durin AmbiBox changeImage()");
//Log.Error(e.Message);
}
}
/// <summary>
/// Peek ahead bytes but do not chnage the seek pointer in sequential access
/// </summary>
/// <param name="position">The position in the file at which to begin reading
/// relative to the current position in the file. Default is 0</param>
/// <param name="count">The number of bytes to read. Default is 1.</param>
/// <returns>A byte array</returns>
public byte[] PeekBytes(int count = 1, long position = 0)
{
MemoryMappedViewStream tempPeek = this.MemoryFile.CreateViewStream(position, count, MemoryMappedFileAccess.Read);
if (tempPeek != null && count > 0)
{
byte[] iodata = new byte[count];
tempPeek.Read(iodata, (int)0, count);
tempPeek.Close();
tempPeek.Dispose();
tempPeek = null;
return(iodata);
}
return(null);
}
private List <P> getPs()
{
MemoryMappedFile mmf = MemoryMappedFile.OpenExisting("AIDA64_SensorValues");
if (mmf == null)
{
MessageBox.Show("Файл не найден в памяти.\r\nУбедитесь, что AIDA запущена \r\nи настроена на использование совместной памяти с внешними приложениями.");
}
MemoryMappedViewStream mmvs = mmf.CreateViewStream();
mmvs.Position = 0;
StreamReader sr = new StreamReader(mmvs);
string input = sr.ReadToEnd();
mmvs.Close();
input = input.Replace("\0", "");
Console.WriteLine(input);
List <P> res = new List <P>();
XDocument doc = XDocument.Parse("<root>" + input + "</root>");
foreach (XElement el in doc.Root.Elements())
{
try
{
P p = new P();
p.type = el.Name.ToString();
p.id = el.Element("id").Value;
p.name = el.Element("label").Value;
p.value = el.Element("value").Value;
if (ids.Contains(p.id))
{
ps.Add(p);
}
}
catch (Exception ex)
{
Console.WriteLine("!!! " + ex.Message);
}
}
return(res);
}
/// <summary>
/// Writes the message to a memory mapped file, where the memory mapped file name is WebsocketPipe.Address + id.
/// mmf format: [wasread? 1 byte][datasize(int)][length(int)][msg][length(int)][msg]...
/// If wasread=0, then writes the new message to the end of the message list and advances the number of messages +1.
/// If wasread=1, clears the mmf and then writes the new message.
/// </summary>
/// <param name="wp">The calling WebsocketPipe</param>
/// <param name="msg">The message to write.</param>
/// <param name="to">The stream to write the mmf filename to.</param>
/// <param name="id">The id of the targer we are writing to, since there may be many we open a mmf for each</param>
public virtual void WriteMessage(WebsocketPipeMessageInfo msg, Stream to)
{
if (msg.Data.Length < this.UseInternalPacketDataSendingIfMsgByteSizeIsLessThen)
{
// write that this is an internal message.
to.WriteByte(1);
WebsocketAsInternalDataSocket.WriteMessage(msg, to);
return;
}
// write that this is a mmf msg.
to.WriteByte(0);
// make the id and write it to the stream.
string id = MakeValidMmfID(msg.DataSocketId);
byte[] mmfnamebuffer = ASCIIEncoding.ASCII.GetBytes(id);
to.Write(mmfnamebuffer, 0, mmfnamebuffer.Length);
Mutex mu = new Mutex(false, id + "_mutex");
if (!mu.WaitOne(MemoryMappedFileAccessTimeout))
{
throw new Exception("Memory mapped file access timedout.");
}
// The data size for a single message.
int totalDataSize = msg.Data.Length + sizeof(int) + 1;
// Creating/Opening the stream.
MemoryMappedViewStream strm = GetDataWritingMemoryMappedViewStream(id, ref totalDataSize);
// we are at the position of the write, and are ready for the message write.
msg.WriteToStream(strm);
strm.Flush();
strm.Close();
strm.Dispose();
strm = null;
// release the mutex.
mu.ReleaseMutex();
}
public PLYToSchematic(string path, float scale, int colorLimit, bool holes, bool flood, bool lonely) : base(path, scale, colorLimit, holes, flood, lonely)
{
MemoryMappedFile mmf = MemoryMappedFile.CreateFromFile(path, FileMode.Open);
MemoryMappedViewStream mms = mmf.CreateViewStream();
DataHeader header = ReadDataHeader(new StreamReader(mms));
Console.WriteLine("[LOG] Start reading PLY data...");
DataBody body = header.binary ? ReadDataBodyBinary(header, new BinaryReader(mms)) : ReadDataBodyAscii(header, new StreamReader(mms));
mms.Close();
Console.WriteLine("[LOG] Done.");
VoxelizeData(new BodyDataDTO()
{
BodyVertices = body.vertices,
BodyColors = body.colors
});
}
static void Main(string[] args)
{
MemoryMappedFile mmf = MemoryMappedFile.CreateNew("AAB", 1024);
MemoryMappedViewStream mStream = mmf.CreateViewStream();
BinaryWriter bw = new BinaryWriter(mStream);
Mutex mx = new Mutex(true, "sync");
while (true)
{
mx.WaitOne();
Thread.Sleep(2000);
var random = new Random();
var nextValue = random.Next().ToString();
Console.WriteLine(nextValue);
bw.Write(nextValue);
mx.ReleaseMutex();
}
bw.Close();
mStream.Close();
}
public SMemIPCData SendMessage(SMemIPCData data_in)
{
try
{
sharedmem_mutex.WaitOne(); //take the mutex
//save message in shared memory
IPCCodec.Serialize(phile_stream, data_in);
//prepare the message prefix
phile_prefix.Write(0, phile_stream.Position);
message_wait.Set(); //signal message ready
message_handled.WaitOne(); //wait for reply ready signal
//copy results from shared memory
long result_size = phile_prefix.ReadInt64(0);
if (result_size > phile_stream.Capacity)
{
//enlarge the view stream if the result is too big
try
{
phile_stream.Close();
phile_stream = phile.CreateViewStream(sizeof(long), result_size);
}
catch
{
throw new SystemException("ijiCore: Result set too large.");
}
}
return(IPCCodec.Deserialize(phile_stream));
}
catch (Exception e)
{
return(null);
}
finally
{
sharedmem_mutex.ReleaseMutex();
}
}
public static string ReadInChunks(long offset, long limit, string path)
{
StringBuilder resultAsString = new StringBuilder();
MemoryMappedFile memoryMappedFile = MemoryMappedFile.CreateFromFile(path);
MemoryMappedViewStream memoryMappedViewStream = memoryMappedFile.CreateViewStream(offset, limit, MemoryMappedFileAccess.Read);
{
for (long i = offset; i < limit; i++)
{
//Reads a byte from a stream and advances the position within the stream by one byte, or returns -1 if at the end of the stream.
int result = memoryMappedViewStream.ReadByte();
if (result == -1)
{
break;
}
char letter = (char)result;
resultAsString.Append(letter);
}
}
Console.WriteLine(resultAsString.ToString());
memoryMappedViewStream.Close();
memoryMappedFile.Dispose();
return(resultAsString.ToString());
}
//http://www.minecraftwiki.net/wiki/Region_file_format
public void Read(String path, int startX, int endX, int startZ, int endZ)
{
Chunks = new Chunk[32, 32];
Match m = Regex.Match(path, @"r\.(-?\d+)\.(-?\d+)\.mca");
Coords.X = int.Parse(m.Groups[1].Value);
Coords.Z = int.Parse(m.Groups[2].Value);
if (!File.Exists(path))
{
return;
}
signal = new ManualResetEvent(false);
taskCount = (endX - startX + 1) * (endZ - startZ + 1);
byte[] header = new byte[8192];
using (MemoryMappedFile file = MemoryMappedFile.CreateFromFile(path, FileMode.Open))
{
using (MemoryMappedViewStream reader = file.CreateViewStream())
{
reader.Read(header, 0, 8192);
for (int chunkZ = startZ; chunkZ <= endZ; chunkZ++)
{
for (int chunkX = startX; chunkX <= endX; chunkX++)
{
Chunk c = new Chunk();
c.Coords.X = Coords.X;
c.Coords.Z = Coords.Z;
c.Coords.RegiontoChunk();
c.Coords.Add(chunkX, chunkZ);
int i = 4 * (chunkX + chunkZ * 32);
byte[] temp = new byte[4];
temp[0] = 0;
Array.Copy(header, i, temp, 1, 3);
if (BitConverter.IsLittleEndian)
{
Array.Reverse(temp);
}
long offset = ((long)BitConverter.ToInt32(temp, 0)) * 4096;
int length = header[i + 3] * 4096;
temp = new byte[4];
Array.Copy(header, i + 4096, temp, 0, 4);
if (BitConverter.IsLittleEndian)
{
Array.Reverse(temp);
}
c.Timestamp = BitConverter.ToInt32(temp, 0);
if (offset == 0 && length == 0)
{
Chunks[chunkX, chunkZ] = c;
if (Interlocked.Decrement(ref taskCount) == 0)
{
signal.Set();
}
continue;
}
reader.Seek(offset, SeekOrigin.Begin);
temp = new byte[4];
reader.Read(temp, 0, 4);
if (BitConverter.IsLittleEndian)
{
Array.Reverse(temp);
}
int exactLength = BitConverter.ToInt32(temp, 0);
c.CompressionType = (byte)reader.ReadByte();
c.RawData = new byte[exactLength - 1];
reader.Read(c.RawData, 0, exactLength - 1);
Chunks[chunkX, chunkZ] = c;
ThreadPool.QueueUserWorkItem(Decompress, c);
}
}
reader.Close();
}
}
signal.WaitOne();
signal.Dispose();
signal = null;
}
public void Dispose()
{
fs.Close();
file.Dispose();
}
protected MemoryMappedViewStream GetDataWritingMemoryMappedViewStream(string id, ref int totalDataSize)
{
bool needAppend = false;
bool needNew = true;
MemoryMappedViewStream strm = null;
BinaryReader rw = null;
if (MemoryMapByID.ContainsKey(id))
{
// Check the size. If smaller then need to increase.
MemoryMappedFile mmf = MemoryMapByID[id].Item2;
strm = mmf.CreateViewStream(0, 0, MemoryMappedFileAccess.ReadWrite);
strm.Seek(0, SeekOrigin.Begin);
rw = new BinaryReader(strm);
needAppend = rw.ReadByte() == 0;
// need to update the data size.
if (needAppend)
{
totalDataSize = totalDataSize + MemoryMapByID[id].Item1;
}
// we need a new file if the data required
needNew = totalDataSize + MMFHeaderSize > ToMMFFileSize(MemoryMapByID[id].Item1);
}
byte[] oldData = null;
if (needAppend && needNew)
{
// the old data to copy
oldData = new byte[rw.ReadInt32()];
// reading the data into the old data array.
strm.Read(oldData, 0, oldData.Length);
}
else if (needAppend)
{
// seek to data end.
strm.Seek(MemoryMapByID[id].Item1 + MMFHeaderSize, SeekOrigin.Begin);
}
BinaryWriter wr;
if (needNew)
{
// destorying the old.
if (needAppend)
{
strm.Close();
strm.Dispose();
MemoryMapByID[id].Item2.Dispose();
}
TotalNumberOfMemoryMappedFilesCreated++;
// dispose the old.
if (MemoryMapByID.ContainsKey(id))
{
MemoryMapByID[id].Item2.Dispose();
}
MemoryMappedFile mmf = MemoryMappedFile.CreateNew(id, ToMMFFileSize(totalDataSize));
strm = mmf.CreateViewStream(0, 0, MemoryMappedFileAccess.ReadWrite);
wr = new BinaryWriter(strm);
MemoryMapByID[id] = new Tuple <int, MemoryMappedFile>(totalDataSize, mmf);
mmf = null;
wr.Write((byte)0);
wr.Write(totalDataSize);
if (needAppend)
{
wr.Write(oldData);
}
// at write position for new data.
}
else
{
wr = new BinaryWriter(strm);
strm.Seek(0, SeekOrigin.Begin);
wr.Write((byte)0);
wr.Write(totalDataSize);
if (needAppend)
{
wr.Seek(MemoryMapByID[id].Item1 + MMFHeaderSize, SeekOrigin.Begin);
}
// at write position.
}
wr = null;
oldData = null;
return(strm);
}
