private void CreateMMF(long capacity)
{
var security = new MemoryMappedFileSecurity();
security.AddAccessRule(new AccessRule <MemoryMappedFileRights>(
new SecurityIdentifier(
WellKnownSidType.WorldSid, null),
MemoryMappedFileRights.FullControl,
AccessControlType.Allow));
try
{
MMF = MemoryMappedFile.OpenExisting(AppId, MemoryMappedFileRights.FullControl, HandleInheritability.Inheritable);
MMF.SetAccessControl(security);
IsRunning = true;
}
catch (FileNotFoundException)
{
MMF = MemoryMappedFile.CreateNew(AppId, capacity, MemoryMappedFileAccess.ReadWrite, MemoryMappedFileOptions.None, security, HandleInheritability.Inheritable);
using (var accessor = MMF.CreateViewAccessor())
accessor.Write(0, 0);
IsRunning = false;
}
}