private static void GetGlobalMemoryStatus(ref UnsafeNativeMethods.MEMORYSTATUSEX memoryStatus)
{
memoryStatus.dwLength = (uint) Marshal.SizeOf(typeof(UnsafeNativeMethods.MEMORYSTATUSEX));
if (!UnsafeNativeMethods.GlobalMemoryStatusEx(ref memoryStatus))
{
int error = Marshal.GetLastWin32Error();
throw FxTrace.Exception.AsError(new InvalidOperationException(System.ServiceModel.Activation.SR.Hosting_GetGlobalMemoryFailed, new Win32Exception(error)));
}
}
protected override bool ReleaseHandle()
{
return(UnsafeNativeMethods.CloseHandle(base.handle) != 0);
}
unsafe int ReceiveCoreAsync(MsmqQueueHandle handle, IntPtr nativePropertiesPointer, TimeSpan timeout,
int action, NativeOverlapped* nativeOverlapped,
UnsafeNativeMethods.MQReceiveCallback receiveCallback)
{
int timeoutInMilliseconds = TimeoutHelper.ToMilliseconds(timeout);
return UnsafeNativeMethods.MQReceiveMessage(handle, timeoutInMilliseconds, action,
nativePropertiesPointer, nativeOverlapped, receiveCallback,
IntPtr.Zero, (IntPtr)UnsafeNativeMethods.MQ_NO_TRANSACTION);
}
public static unsafe bool TryCreate(List <SecurityIdentifier> allowedSids, Uri pipeUri, string sharedMemoryName, out PipeSharedMemory result)
{
byte[] buffer;
SafeFileMappingHandle handle;
int num;
bool flag2;
Guid guid = Guid.NewGuid();
string pipeName = BuildPipeName(guid);
try
{
buffer = SecurityDescriptorHelper.FromSecurityIdentifiers(allowedSids, -2147483648);
}
catch (Win32Exception exception)
{
Exception innerException = new PipeException(exception.Message, exception);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new CommunicationException(innerException.Message, innerException));
}
result = null;
fixed(byte *numRef = buffer)
{
UnsafeNativeMethods.SECURITY_ATTRIBUTES securityAttributes = new UnsafeNativeMethods.SECURITY_ATTRIBUTES {
lpSecurityDescriptor = numRef
};
handle = UnsafeNativeMethods.CreateFileMapping((IntPtr)(-1), securityAttributes, 4, 0, sizeof(SharedMemoryContents), sharedMemoryName);
num = Marshal.GetLastWin32Error();
}
if (handle.IsInvalid)
{
handle.SetHandleAsInvalid();
if (num == 5)
{
return(false);
}
Exception exception3 = new PipeException(System.ServiceModel.SR.GetString("PipeNameCantBeReserved", new object[] { pipeUri.AbsoluteUri, PipeError.GetErrorString(num) }), num);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new AddressAccessDeniedException(exception3.Message, exception3));
}
if (num == 0xb7)
{
handle.Close();
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(CreatePipeNameInUseException(num, pipeUri));
}
PipeSharedMemory memory = new PipeSharedMemory(handle, pipeUri, pipeName);
bool flag = true;
try
{
memory.InitializeContents(guid);
flag = false;
result = memory;
flag2 = true;
}
finally
{
if (flag)
{
memory.Dispose();
}
}
return(flag2);
}
