# File: drop_requirements.txt
# Author: Chris Ford
# Date: March 2, 2022
#
# --- constants ---------------------------------------------------------
#
# 7 hutch names:
#
# CXI
# XCS
# MEC
# MFX
# XPP
# TMO
# RIX
#
# 1 stopper PV for each hutch:
#
# STPR:XRT1:1:S5OUT_MPSC
# PPS:FEH1:4:S4STPRSUM
# PPS:FEH1:6:S6STPRSUM
# STPR:XRT:1:S45IN_MPSC
# PPS:NEH1:1:S3INSUM
# PPS:NEH1:1:ST3K4OUTSUM
# STPR:NEH1:2200:ST1K2OUT
#
# 2 soft xray PVs:
#
# soft_abtprd = IOC:IN20:EV01:BYKIKS_ABTPRD
# soft_abtact = IOC:IN20:EV01:BYKIKS_ABTACT
#
# 2 hard xray PVs:
#
# hard_abtprd = IOC:IN20:EV01:BYKIK_ABTPRD
# hard_abtact = IOC:IN20:EV01:BYKIK_ABTACT
#
# 5 hutches are hard xray, and 2 (TMO and RIX) are soft xray
#
# 3 of the stoppers (XCS, MEC, and XPP) open on 0, and 4 open on 1
#
# minvalue = 10000
#
# --- pseudocode --------------------------------------------------------
#
# read new stopper PV values from EPICS
#
# if stopperstate.pkl file is found:
#
# read old stopper PV values from stopperstate.pkl using pickle.load()
#
# for each soft xray hutch:
# if stopper newly opened:
# if ((soft_abtact == 0) or (soft_abtprd > minvalue))
# soft_abtprd = minvalue
# soft_abtact = 1
#
# for each hard xray hutch:
# if stopper newly opened:
# if ((hard_abtact == 0) or (hard_abtprd > minvalue))
# hard_abtprd = minvalue
# hard_abtact = 1
#
# write new PV values to stopperstate.pkl file using pickle.dump()
#
# exit | 