本文整理汇总了C#中System.IO.MemoryMappedFiles.MemoryMappedFile类的典型用法代码示例。如果您正苦于以下问题：C# MemoryMappedFile类的具体用法？C# MemoryMappedFile怎么用？C# MemoryMappedFile使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
MemoryMappedFile类属于System.IO.MemoryMappedFiles命名空间，在下文中一共展示了MemoryMappedFile类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Startup
//List<CVarHeader> VarHeaders = new List<CVarHeader>();
public bool Startup()
{
if (IsInitialized) return true;
try
{
iRacingFile = MemoryMappedFile.OpenExisting(Defines.MemMapFileName);
FileMapView = iRacingFile.CreateViewAccessor();
VarHeaderSize = Marshal.SizeOf(typeof(VarHeader));
var hEvent = OpenEvent(Defines.DesiredAccess, false, Defines.DataValidEventName);
var are = new AutoResetEvent(false);
are.Handle = hEvent;
var wh = new WaitHandle[1];
wh[0] = are;
WaitHandle.WaitAny(wh);
Header = new CiRSDKHeader(FileMapView);
GetVarHeaders();
IsInitialized = true;
}
catch (Exception)
{
return false;
}
return true;
}示例2: MainWindow
public MainWindow()
{
InitializeComponent();
videoSource = new WriteableBitmap(640, 480, 72, 72, PixelFormats.Rgb24, null);
rectifiedTabletopMmf = MemoryMappedFile.OpenExisting("InteractiveSpaceRectifiedTabletop", MemoryMappedFileRights.Read);
buffer = new byte[imgSize];
}示例3: SRHSharedData
public SRHSharedData()
{
m_Mmf = MemoryMappedFile.CreateNew(@"SimpleROHook1008",
Marshal.SizeOf(typeof(StSHAREDMEMORY)),
MemoryMappedFileAccess.ReadWrite);
if (m_Mmf == null)
MessageBox.Show("CreateOrOpen MemoryMappedFile Failed.");
m_Accessor = m_Mmf.CreateViewAccessor();
byte* p = null;
m_Accessor.SafeMemoryMappedViewHandle.AcquirePointer(ref p);
m_pSharedMemory = (StSHAREDMEMORY*)p;
write_packetlog = false;
freemouse = false;
m2e = false;
fix_windowmode_vsyncwait = false;
show_framerate = false;
objectinformation = false;
_44khz_audiomode = false;
cpucoolerlevel = 0;
configfilepath = "";
musicfilename = "";
executeorder = false;
g_hROWindow = 0;
}示例4: MemoryMapReader
public MemoryMapReader(string file)
{
var fileInfo = new FileInfo(file);
Length = (int)fileInfo.Length;
// Ideally we would use the file ID in the mapName, but it is not
// easily available from C#.
var mapName = $"{fileInfo.FullName.Replace("\\", "-")}-{Length}";
lock (FileLocker)
{
try
{
_memoryMappedFile = MemoryMappedFile.OpenExisting(mapName, MemoryMappedFileRights.Read);
}
catch (Exception ex) when (ex is IOException || ex is NotImplementedException)
{
using (
var stream = new FileStream(file, FileMode.Open, FileAccess.Read,
FileShare.Delete | FileShare.Read))
{
_memoryMappedFile = MemoryMappedFile.CreateFromFile(stream, mapName, Length,
MemoryMappedFileAccess.Read, null, HandleInheritability.None, false);
}
}
}
_view = _memoryMappedFile.CreateViewAccessor(0, Length, MemoryMappedFileAccess.Read);
}示例5: GetFileNameOfMemoryMappedFile
public static string GetFileNameOfMemoryMappedFile(MemoryMappedFile file)
{
const uint size = 522;
IntPtr path = Marshal.AllocCoTaskMem(unchecked((int)size)); // MAX_PATH + 1 char
string result = null;
try
{
// constant 0x2 = VOLUME_NAME_NT
uint test = GetFinalPathNameByHandle(file.SafeMemoryMappedFileHandle.DangerousGetHandle(), path, size, 0x2);
if (test != 0)
throw new Win32Exception();
result = Marshal.PtrToStringAuto(path);
}
catch
{
uint test = GetMappedFileName(Process.GetCurrentProcess().Handle, file.SafeMemoryMappedFileHandle.DangerousGetHandle(), path, size);
if (test != 0)
throw new Win32Exception();
result = Marshal.PtrToStringAuto(path);
}
return result;
}示例6: BitmapBroadcaster
public BitmapBroadcaster()
{
file = MemoryMappedFile.CreateOrOpen("OpenNiVirtualCamFrameData", fileSize, MemoryMappedFileAccess.ReadWrite);
memoryAccessor = file.CreateViewAccessor(0, fileSize, MemoryMappedFileAccess.ReadWrite);
if (hasServer())
throw new Exception("Only one server is allowed.");
}示例7: FileHardDisk
public FileHardDisk(string path)
{
var fi = new FileInfo(path);
mSize = fi.Length;
mFile = MemoryMappedFile.CreateFromFile(path, FileMode.Open);
}示例8: MemoryMappedFileCheckpoint
public MemoryMappedFileCheckpoint(string filename, string name, bool cached, bool mustExist = false, long initValue = 0)
{
_filename = filename;
_name = name;
_cached = cached;
var old = File.Exists(_filename);
_fileStream = new FileStream(_filename,
mustExist ? FileMode.Open : FileMode.OpenOrCreate,
FileAccess.ReadWrite,
FileShare.ReadWrite);
_file = MemoryMappedFile.CreateFromFile(_fileStream,
Guid.NewGuid().ToString(),
sizeof(long),
MemoryMappedFileAccess.ReadWrite,
new MemoryMappedFileSecurity(),
HandleInheritability.None,
false);
_accessor = _file.CreateViewAccessor(0, 8);
if (old)
_last = _lastFlushed = ReadCurrent();
else
{
_last = initValue;
Flush();
}
}示例9: Allocate
/// <summary>
/// note that a few bytes of the size will be used for a management area
/// </summary>
/// <param name="size"></param>
public void Allocate(int size)
{
Owner = true;
Id = SuperGloballyUniqueID.Next();
mmf = MemoryMappedFile.CreateNew(Id, size);
Setup(size);
}示例10: InitSharedMemory
private void InitSharedMemory()
{
_messageMemoryMappedFile = MemoryMappedFile.CreateOrOpen(@"messageMemory", 1024*1024, MemoryMappedFileAccess.ReadWrite);
_collisionFlagMemoryMappedFile = MemoryMappedFile.CreateOrOpen(@"collisionFlag", 8, MemoryMappedFileAccess.ReadWrite);
SetCollision(false);
}示例11: IncreaseSize
public Stream IncreaseSize(int value, out long offset)
{
lock (_lock)
{
while (Interlocked.Read(ref _counter) != 0)
{
if (!Monitor.Wait(_lock, 10000, true))
throw new NotSupportedException();
}
FileStream file = new FileStream(_filePath, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite);
try
{
offset = MathEx.RoundUp(file.Length, 0x800);
file.SetLength(offset + value);
_mmf = MemoryMappedFile.CreateFromFile(file, null, 0, MemoryMappedFileAccess.ReadWrite, null, HandleInheritability.Inheritable, false);
}
catch
{
file.SafeDispose();
throw;
}
Interlocked.Increment(ref _counter);
DisposableStream result = new DisposableStream(_mmf.CreateViewStream(offset, value, MemoryMappedFileAccess.ReadWrite));
result.AfterDispose.Add(new DisposableAction(Free));
return result;
}
}示例12: Complex4Ks
public Complex4Ks(long complexEntryCount)
{
Debug.Assert(complexEntryCount > fourK);
Debug.Assert(complexEntryCount % 0x1000 == 0);
Debug.Assert((complexEntryCount != 0) && ((complexEntryCount & (complexEntryCount - 1)) == 0), "complexEntryCount must be power of 2");
this.length4ks = complexEntryCount / fourK;
Debug.Assert(complexEntryCount == fourK * this.length4ks);
bool ramIsLow = this.length4ks > 1024;
if (!ramIsLow)
{
lock (totalRAMLock)
{
ramIsLow = totalRAM <= 0L;
}
}
if (ramIsLow)
{
lock (nameSuffixLock)
{
this.suffix = nameSuffix++;
}
this.file = MemoryMappedFile.CreateFromFile(FileName, FileMode.CreateNew, namePrefix + "-" + suffix, complexEntryCount * 16L, MemoryMappedFileAccess.ReadWrite);
}
else
{
lock (totalRAMLock)
{
totalRAM -= this.length4ks * 4096 * 16;
}
this.array = new Complex[this.length4ks][];
}
}示例13: MapContent
void MapContent()
{
if (_accessor != null) return;
_memoryMappedFile = MemoryMappedFile.CreateFromFile(_stream, null, 0, MemoryMappedFileAccess.ReadWrite, null, HandleInheritability.None, true);
_accessor = _memoryMappedFile.CreateViewAccessor();
_accessor.SafeMemoryMappedViewHandle.AcquirePointer(ref _pointer);
}示例14: MumbleLink
public MumbleLink()
{
if (mmFile == null)
{
mmFile = MemoryMappedFile.CreateOrOpen("MumbleLink", Marshal.SizeOf(data), MemoryMappedFileAccess.ReadWrite);
mmAccessor = mmFile.CreateViewAccessor(0, Marshal.SizeOf(data));
}
}示例15: CreateFileStreams
private void CreateFileStreams()
{
if (_file != null || _fileStream != null)
throw new InvalidOperationException();
_file = MemoryMappedFile.CreateFromFile(FileName);
_fileStream = _file.CreateViewStream();
}