Module signals 

The synthetic PVs: deterministic functions of time on a fixed sample grid.

PV	Signal
MOCK:SINE	1 Hz, 10-minute-period sine, EGU mA, PREC 3 (MINOR alarm near the top)
MOCK:RAMP	0.1 Hz sawtooth 0..100 over an hour
MOCK:NOISE	10 Hz noise on a slow drift, seeded per sample (no RNG state)
MOCK:SLOW	one sample every 5 minutes (so optimized returns raw)
MOCK:STEP	a value that holds for 4 minutes, then jumps (1 s grid)
MOCK:ENUM	integer 0..3, sampled every minute
MOCK:STRING	text
MOCK:WAVE	8-element array
MOCK:NAN	sine with a NaN every 50th sample and severity-3 cnxlostepsecs gaps
MOCK:BIG	1 Hz sine of amplitude 3e10 (Java 3.0E10 notation on the wire)
bl01t:A, bl01t:B, bl01t:SUM, BL01T-MO-SIMC-01:M1.RBV, BL01T-MO-SIMC-01:M2.RBV	names bobview-testioc serves, so archive and live join up

Every value is a pure function of the sample’s absolute grid index (t / period), so two servers started at different times agree on every sample they both have. “Noise” is a hash of that index.

Structs

Event

One archived event.

Signal

One synthetic PV.

Enums

Kind

What a mock PV’s archived values are.

Shape

What the synthetic signal looks like.

Value

One archived value.

Constants

HISTORY_DAYS

Days of history before the server’s start time.

NAN_CYCLE

MOCK:NAN loses its connection after sample NAN_LOST of every NAN_CYCLE (absolute index modulo the cycle) and is back at NAN_REGAINED; the samples in between are missing.

NAN_LOST

NAN_REGAINED

Functions

all

Every mock PV, in a fixed order.

find

The PV called name.