Ccc2installexe Exclusive
A facility running an end-of-life conveyor firmware revision (e.g., v2.4.11) cannot use the latest ccc2installexe from 2024. The “exclusive” version is the exact, often difficult-to-find, legacy build that matches the field hardware.
When invoked with the --exclusive flag (or when CCC2_INSTALL_EXCLUSIVE=1 is set in environment), ccc2install.exe follows this finite state machine: ccc2installexe exclusive
| State | Action |
|---------------------------|------------------------------------------------------------------------|
| 1. Pre-flight check | Verify no other exclusive installer instance exists. |
| 2. Lock acquisition | Acquire mutex + file locks; if failed → abort. |
| 3. Pre-install validation | Check disk space, OS version, prerequisite DLLs. |
| 4. File copy | Copy all CCC2 binaries to target location while maintaining locks. |
| 5. Service registration | Install Windows service or systemd unit (exclusive access to service manager). |
| 6. Atomic commit | Write a installation.committed sentinel; release locks only after full success. |
| 7. Rollback (if failure) | Reverse all changes, delete lock files, release mutex. | A facility running an end-of-life conveyor firmware revision
Note: In exclusive mode, the installer blocks even read access to CCC2-related files by other applications (e.g., monitoring tools). This ensures no partial reads of incomplete binaries. Note: In exclusive mode, the installer blocks even
| Term | Definition |
|----------------------|----------------------------------------------------------------------------|
| CCC2 | Core Control Component 2 – a hypothetical middleware or driver suite |
| ccc2install.exe | The primary installation binary for CCC2 |
| Exclusive Mode | A state where the installer blocks all other processes from accessing critical CCC2 resources (files, registry keys, services, memory maps) |
| Installation Mutex | A global named mutex used to enforce single-instance execution |
| Resource Lock File | A binary .lck file placed in the target directory to prevent concurrent modifications |
