ActiveSync, WM2005 and recovery

Hi,

We're using RAPI to enable communication between our desktop and PPC application over ActiveSync. One of the requirements on our application is that it must be able
to recover from failure, such as cable removal or similiar. This works fine with WM2003, but WM2005 doesn't appear to be able to recover as easily.

The scenario is simple: open a RAPI stream, remove the USB-cable (while the stream is open) and reopen the stream. With WM2005, it will only be possible to reinitialize if our app is restarted.
When attempting to reconnect after cable-removal, we will _always_ get error 0x80070015 (device not ready). This does not occure on WM2003.

This is roughly what we're doing (note - pseudo code):

-------------------------------------------------------------
bool reinitialized = false, reloaded = false, opened = false;

// Dynamically link against RAPI
rapi_dll = LoadLibrary("rapi.dll");
CeRapiInit = GetProcAddress(...), CeRapiUninit = ...;

while(!opened || !(reinitialized && reloaded))
{
CeRapiInit();

try
{
CeRapiInvoke(bla, bla, bla);
opened = true;

} catch (...)
{
if(!reinitialized)
{
// Try to simply reinitialize rapi
CeRapiUninit();

reinitialized = true;
}
else if(!reloaded)
{
// Reload the DLLs (far fetched)
FreeLibrary(rapi_dll);
LoadLibrary(rapi_dll);

reloaded = true;
}
}
}
-------------------------------------------------------------

Any ideas Has anyone else had problems with this

Thanks in advance,
Nille

Answer this question