public void Open(string path, FileAccess mode, uint timeout)
{
IntPtr nativeHandle;
for (; ;)
{
NativeMethods.SecurityAttributes security = new NativeMethods.SecurityAttributes();
security.inheritHandle = true;
security.Length = Marshal.SizeOf(security);
nativeHandle = NativeMethods.CreateFile(path, NativeMethods.GENERIC_READ | NativeMethods.GENERIC_WRITE,
0, security, NativeMethods.OPEN_EXISTING, NativeMethods.FILE_FLAG_OVERLAPPED, 0);
if (nativeHandle != IntPtr.Zero)
{
break;
}
if (Marshal.GetLastWin32Error() != ERROR_PIPE_BUSY)
{
throw new Win32Exception(Marshal.GetLastWin32Error(),
"Error opening pipe");
}
LowResolutionStopwatch sw = LowResolutionStopwatch.StartNew();
bool success = NativeMethods.WaitNamedPipe(path, timeout);
sw.Stop();
if (!success)
{
if (timeout < sw.ElapsedMilliseconds ||
Marshal.GetLastWin32Error() == ERROR_SEM_TIMEOUT)
{
throw new TimeoutException("Timeout waiting for named pipe");
}
else
{
throw new Win32Exception(Marshal.GetLastWin32Error(),
"Error waiting for pipe");
}
}
timeout -= (uint)sw.ElapsedMilliseconds;
}
handle = new SafeFileHandle(nativeHandle, true);
fileStream = new FileStream(handle, mode, 4096, true);
}
public void Open(string path, FileAccess mode, uint timeout)
{
IntPtr nativeHandle;
for (; ; )
{
NativeMethods.SecurityAttributes security = new NativeMethods.SecurityAttributes();
security.inheritHandle = true;
security.Length = Marshal.SizeOf(security);
nativeHandle = NativeMethods.CreateFile(path, NativeMethods.GENERIC_READ | NativeMethods.GENERIC_WRITE,
0, security, NativeMethods.OPEN_EXISTING, NativeMethods.FILE_FLAG_OVERLAPPED, 0);
if (nativeHandle != IntPtr.Zero)
break;
if (Marshal.GetLastWin32Error() != ERROR_PIPE_BUSY)
{
throw new Win32Exception(Marshal.GetLastWin32Error(),
"Error opening pipe");
}
LowResolutionStopwatch sw = LowResolutionStopwatch.StartNew();
bool success = NativeMethods.WaitNamedPipe(path, timeout);
sw.Stop();
if (!success)
{
if (timeout < sw.ElapsedMilliseconds ||
Marshal.GetLastWin32Error() == ERROR_SEM_TIMEOUT)
{
throw new TimeoutException("Timeout waiting for named pipe");
}
else
{
throw new Win32Exception(Marshal.GetLastWin32Error(),
"Error waiting for pipe");
}
}
timeout -= (uint)sw.ElapsedMilliseconds;
}
handle = new SafeFileHandle(nativeHandle, true);
fileStream = new FileStream(handle, mode, 4096, true);
}
