CAMAC subsystem and user context utilities in ngdp framework

TL;DR

This paper discusses enhancements to the ngdp framework, focusing on CAMAC hardware integration, user context utilities, and system components for efficient data acquisition in high-energy physics experiments.

Contribution

It introduces new utilities and system components within ngdp for improved CAMAC hardware handling and user context management in data acquisition systems.

Findings

ngdp is suitable for lightweight CAMAC-based DAQ systems

New utilities improve user context management

Framework supports advanced data acquisition features

Abstract

The ngdp framework advanced topics are described. Namely we consider work with CAMAC hardware, "selfflow" nodes for the data acquisition systems with the As-Soon-As-Possible policy, ng_mm(4) as alternative to ng_socket(4), the control subsystem, user context utilities, events representation for the ROOT package, test and debug nodes, possible advancements for netgraph(4), etc. It is shown that the {\itshape ngdp} is suitable for building lightweight DAQ systems to handle CAMAC. The investigation has been performed at the Veksler and Baldin Laboratory of High Energy Physics, JINR.