On 28.04.2016 03:40, Gofron, Kazimierz wrote:
For method C, discussed here:http://epics.web.psi.ch/software/streamdevice/doc/tipsandtricks.html
only up to 4 PVs can be read with streamDevice, otherwise "Forgot the leading '@' or confused INP with OUT" somewhat misleading message appears.
This happens when the link string is too long. It can have only 78 chars
(80 including @ and terminating null byte). This is a limitiation of
EPICS. Maybe I should add "or the link string is too long" to the error
message. StreamDevice sees only an empty string if that happens.
When using multiple redirects, do not try to pass the full names of 9
records to StreamDevice. This is likely to overflow the INP string. Pass
only the common prefix as "\$1" and have the rest of the names coded in
the protocol file.
Dirk
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