private NamedEvent(string name)
{
using (SecurityDescriptorSafePtr securityDescriptor = Security.CreateDefaultSecurityDescriptor())
{
var securityAttr = new Native.SECURITY_ATTRIBUTES
{
Length = (uint)Marshal.SizeOf <Native.SECURITY_ATTRIBUTES>(),
InheritHandle = false,
SecurityDescriptor = securityDescriptor.DangerousGetHandle(),
};
eventHandle = Native.CreateEvent(
ref securityAttr,
manualReset: false,
initialState: false,
name);
if (eventHandle.IsInvalid)
{
throw new IOException(
$"Failed to create a NamedEvent {name}",
innerException: new Win32Exception(Marshal.GetLastWin32Error()));
}
Security.VerifyHandleOwner(eventHandle);
}
}
/// <summary>
/// Creates or opens a shared memory view.
/// </summary>
/// <param name="sharedMemoryMapName"></param>
/// <param name="sharedMemorySize"></param>
/// <returns></returns>
public static new SharedMemoryMapView CreateOrOpen(string sharedMemoryMapName, ulong sharedMemorySize)
{
SharedMemorySafeHandle sharedMemoryHandle;
using (SecurityDescriptorSafePtr securityDescriptor = Security.CreateDefaultSecurityDescriptor())
{
var securityAttr = new Native.SECURITY_ATTRIBUTES
{
Length = (uint)Marshal.SizeOf <Native.SECURITY_ATTRIBUTES>(),
InheritHandle = false,
SecurityDescriptor = securityDescriptor.DangerousGetHandle(),
};
Utils.SplitULong(sharedMemorySize, out uint sharedMemorySizeHigh, out uint sharedMemorySizeLow);
sharedMemoryHandle = Native.CreateFileMapping(
Native.InvalidPointer,
ref securityAttr,
Native.FileMapProtection.PageReadWrite,
sharedMemorySizeHigh,
sharedMemorySizeLow,
sharedMemoryMapName);
}
if (sharedMemoryHandle.IsInvalid)
{
throw new FileNotFoundException(
$"Failed to CreateFileMapping {sharedMemoryMapName}",
innerException: new Win32Exception(Marshal.GetLastWin32Error()));
}
Security.VerifyHandleOwner(sharedMemoryHandle);
return(new SharedMemoryMapView(sharedMemoryHandle, sharedMemorySize));
}