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this was an oversight for filter switch functions

This is only useful in certain contexts for "emergency" running of
code that needs to succeed even in the face of dead channels.

reads return NaN on connection failures.

changing timeout with EZCA_TIMEOUT was not working because of how PV
connections were being established: it was always using underlying pyepics
timeout.  This simple change should allow for the timeout being set
as expected.

passed through to LIGOFilter.switch

don't assume timeout is int

Also remove redundant Ezca tests from cdsutils package unittest.

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@514 818be445-109b-46b2-bbff-5a61ffffd8fa

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@513 818be445-109b-46b2-bbff-5a61ffffd8fa

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@497 818be445-109b-46b2-bbff-5a61ffffd8fa

This makes them more easily available to all submodules.

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@494 818be445-109b-46b2-bbff-5a61ffffd8fa

if there is no prefix, then just add the channel normally and don't log it.

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@486 818be445-109b-46b2-bbff-5a61ffffd8fa

These all have to do with EPICS connections, and as EzcaConnectError can
therefore be handled appropriately via guardian.

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@482 818be445-109b-46b2-bbff-5a61ffffd8fa

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@481 818be445-109b-46b2-bbff-5a61ffffd8fa

It turns out that some system do reference the Mask class directly (SEI).
This should be deprecated with time.

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@472 818be445-109b-46b2-bbff-5a61ffffd8fa

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@471 818be445-109b-46b2-bbff-5a61ffffd8fa

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@470 818be445-109b-46b2-bbff-5a61ffffd8fa

add read logs and verbosity.

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@469 818be445-109b-46b2-bbff-5a61ffffd8fa

when an SWSTAT is specified in the system module ca_channels attribute as a
tuple of button names, it will be appropriately converted into a SFMask for
the setpoint.

Also improve init_setpoints spec error checking.

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@468 818be445-109b-46b2-bbff-5a61ffffd8fa

channels that show EzcaConnectErrors will be listed as DEAD.

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@467 818be445-109b-46b2-bbff-5a61ffffd8fa

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@466 818be445-109b-46b2-bbff-5a61ffffd8fa

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This allows separating connection errors from other "user" errors.

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@464 818be445-109b-46b2-bbff-5a61ffffd8fa

This method now writes all PV data to the specified snapshot file.  PVs that
are written to will now have a _setpoint attribute set.  PVs without that
attribute will be written with the RO flag in the snapshot file.  Those with
the attribute will not have the flag.

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@463 818be445-109b-46b2-bbff-5a61ffffd8fa

The staticmethods of LIGOFilter are actually much more apropriate as
classmethods of SFMask.

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@462 818be445-109b-46b2-bbff-5a61ffffd8fa

The _translate*button_name functions don't need to necessarily be tied to
the LIGOFilter class, since they can also be used by SFMask.

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/cdsutils/trunk@461 818be445-109b-46b2-bbff-5a61ffffd8fa