V4 Modules and Interfaces

This page is an attempt to collect a list of the different parts of EPICS V4 and eventually to identify where and how they will interface to one another and to the outside world. There will probably be many omissions from my initial versions of this list, so please contribute.

Modules

Infrastructure

• Build System (Makefile rules, configuration etc.)
• libOSI (the OSI layer should be separated out)
  • OS Dependent code
  • OS Independent Interfaces
• libCom (Commonly used components)
  • Memory management (???)

• Lex/Flex ???
• Yacc/Bison/Antelope ???

Preprocessing

• DBD file converters for
  • Menus (.h file)
  • Record support (.h, .cpp files)
  • Structures (.h, .cpp files?)
  • Link support (.h, .cpp files)
  • Device support (.h, .cpp files)
• DB file processing
  • Syntax checker
  • Hierarchy expansion

IOC Core

• IOC shell
• Registration (commands, interfaces, menus, record types, devices etc.)

• Access security
• Data server
  • Name resolution
  • Filtering
  • Event Queue
• Database access
  • View manager
  • Catalog cache
• Database manager
  • DB file parser/loader
  • Initialization
  • Scanning

Communication

• CA server
• Broadcast name server
• Other name server ???
• CA client
• CA link support
• DB link support
• Field view

Other Tools

• Log client
• Log server
• CA Tools

Interfaces

Not quite sure how to structure this section yet; an interface is implemented by one or more modules and called by other modules for communication or control purposes.