Asyn port locking

[<ronaldo.mercado@diamond.ac.uk>]

Hello,
 
I am debugging a module that depends on tpmac and streamDevice.

Both streams and tpmac access an asyn port that communicate with a
serial device (non multi-address).

I use streams in the synchronous mode, that is I don't have I/O
interrupt records.

I found errors caused by clashes and found two different methods of
locking an asyn port

1) lockPort/unlockPort (used by tpmac via asynOctetSyncIO)
2) blockProcessCallback/unblockProcessCallback(used by streams via
queueRequest)

The error I saw originate from a request sent by streams, followed by a
request sent by tpmac, before streams gets its reply. This causes the
replies to get garbled.

Is the lockPort/unlockPort method compatible with
blockProcessCallback/unblockProcessCallback ?

Thanks,

Ronaldo

Dr Ronaldo Mercado
Software Systems Engineer Photon Beamlines 
Phone: +44 (0)1235-778486 Mobile 07887 832623
Diamond Light Source Fax: +44 (0)1235-446713
Diamond House, Harwell Science and Innovation Campus, Didcot,
Oxfordshire, OX11 0DE
 
e-mail: ronaldo.mercado@diamond.ac.uk

-- 
This e-mail and any attachments may contain confidential, copyright and or privileged material, and are for the use of the intended addressee only. If you are not the intended addressee or an authorised recipient of the addressee please notify us of receipt by returning the e-mail and do not use, copy, retain, distribute or disclose the information in or attached to the e-mail.
Any opinions expressed within this e-mail are those of the individual and not necessarily of Diamond Light Source Ltd. 
Diamond Light Source Ltd. cannot guarantee that this e-mail or any attachments are free from viruses and we cannot accept liability for any damage which you may sustain as a result of software viruses which may be transmitted in or with the message.
Diamond Light Source Limited (company no. 4375679). Registered in England and Wales with its registered office at Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, United Kingdom