DPL Analysis: refactor Preslice; move some code out of line

[aalkin]

No description provided.

[github-actions]

REQUEST FOR PRODUCTION RELEASES:
To request your PR to be included in production software, please add the corresponding labels called "async-" to your PR. Add the labels directly (if you have the permissions) or add a comment of the form (note that labels are separated by a ",")

+async-label <label1>, <label2>, !<label3> ...

This will add <label1> and <label2> and removes <label3>.

The following labels are available
async-2023-pbpb-apass4
async-2023-pp-apass4
async-2024-pp-apass1
async-2022-pp-apass7
async-2024-pp-cpass0
async-2024-PbPb-apass1
async-2024-ppRef-apass1

[alibuild]

Error while checking build/O2/fullCI for a064177 at 2025-01-28 11:06:

## sw/BUILD/O2-latest/log
c++: error: unrecognized command-line option '--rtlib=compiler-rt'
c++: error: unrecognized command-line option '--rtlib=compiler-rt'


## sw/BUILD/O2Physics-latest/log
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Error while checking build/O2/fullCI_slc9 for e75ff67 at 2025-01-28 13:47:

## sw/BUILD/O2Physics-latest/log
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Error while checking build/O2/fullCI for e75ff67 at 2025-01-28 14:33:

## sw/BUILD/O2-latest/log
c++: error: unrecognized command-line option '--rtlib=compiler-rt'
c++: error: unrecognized command-line option '--rtlib=compiler-rt'


## sw/BUILD/O2Physics-latest/log
ninja: build stopped: subcommand failed.


## sw/BUILD/o2checkcode-latest/log
--
========== List of errors found ==========
++ GRERR=0
++ grep -v clang-diagnostic-error error-log.txt
++ grep ' error:'
++ GRERR=1
++ [[ 1 == 0 ]]
++ mkdir -p /sw/INSTALLROOT/2d33affbaf93bff91300730db0d15e358cf2b6e2/slc8_x86-64/o2checkcode/1.0-local100/etc/modulefiles
++ cat
--

Full log here.

[alibuild]

Error while checking build/O2/fullCI_slc9 for 05a7d09 at 2025-02-08 04:40:

## sw/BUILD/O2Physics-latest/log
Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:
Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:
Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:
Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:
Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:
Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:
Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:
Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:
Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:
Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:
Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:
Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:


## sw/BUILD/O2-sim-challenge-test-latest/log
./sim-challenge.logDetected critical problem in logfile tpcreco.log
./sim-challenge.logtpcreco.log:[14165:internal-dpl-ccdb-backend]: [04:40:18][ERROR] Exception while running: Fatal error. Rethrowing.
./sim-challenge.logtpcreco.log-[14165:internal-dpl-ccdb-backend]: [04:40:18][FATAL] Unhandled o2::framework::runtime_error reached the top of main of o2-tpc-reco-workflow, device shutting down. Reason: Fatal error
./sim-challenge.log[14165:internal-dpl-ccdb-backend]: [04:40:18][ERROR] Failed to open file alien:///alice/data/CCDB/CTP/Calib/OrbitReset/06/62200/b9f985c3-b4b0-11ec-8fd3-90ce809b24ee?filetype=raw
./sim-challenge.log[14165:internal-dpl-ccdb-backend]: [04:40:18][FATAL] Unable to find object CTP/Calib/OrbitReset/1546300800000
./sim-challenge.log[14165:internal-dpl-ccdb-backend]: [04:40:18][ERROR] Exception while running: Fatal error. Rethrowing.
./sim-challenge.log[14165:internal-dpl-ccdb-backend]: [04:40:18][FATAL] Unhandled o2::framework::runtime_error reached the top of main of o2-tpc-reco-workflow, device shutting down. Reason: Fatal error
./sim-challenge.log[ERROR] Workflow crashed - PID 14165 (internal-dpl-ccdb-backend) did not exit correctly however it's not clear why. Exit code forced to 128.
./sim-challenge.log[ERROR]  - Device internal-dpl-ccdb-backend: pid 14165 (exit 128)
./sim-challenge.log[INFO]    - First error: [04:40:18][FATAL] Unable to find object CTP/Calib/OrbitReset/1546300800000
./sim-challenge.log[ERROR] SEVERE: Device internal-dpl-ccdb-backend (14165) had at least one message above severity 5: Unable to find object CTP/Calib/OrbitReset/1546300800000
./digi.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/37}
./digi.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/38}
./digi.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/40}
./digi.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/42}
./digi.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/43}
./digi.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/45}
./digi.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/46}
./digi.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/47}
./digi.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/48}
./digi.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/49}
./digi.log[8923:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/37}
./digi.log[8923:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/38}
./digi.log[8923:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/40}
./digi.log[8923:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/42}
./digi.log[8923:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/43}
./digi.log[8923:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/45}
./digi.log[8923:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/46}
./digi.log[8923:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/47}
./digi.log[8923:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/48}
./digi.log[8923:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/49}
./digi.log[8925:TRDDigitizer]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/37}
./digi.log[8925:TRDDigitizer]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/38}
[0 more errors; see full log]

Full log here.