Epics C

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Epics C Library

• Written by Christoph Seiler
• Presented by Dirk Zimoch

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What is C and why do we use it?

• C runs on a virtual environment (called .NET)
  similar to Java's virtual machine
• ECMA and ISO certificated
• Resembles JAVA
• Allows fast development
• Huge amount of usable libraries
• Excellent IDE
• Due to open Source projects also usable on other
  platforms (MONO on Linux)

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Epics C Library Not another wrapper

• Fully implemented and independent Channel Access
• Supports Get, Put and Monitor
• Supports all Epics specific types like
  DBR_TIME_DOUBLE
• Handles everything from TCP UDP Listening to
  C Interface
• Based on cosylabs reverse engineered protocol
  specification
• Easy configuration through XML-ConfigFile or
  Runtime Changes
• Runs on .NET and MONO

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Epics C Library Why has it been developed?

• Portability
• Standalone library No EPICS installation
  reqired
• Usability
• Clean and easy interface
• C, C, VB.Net
• Still high performance (connects and receives
  first monitor value for 32000 channels in 16
  seconds)

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Epics C Library How to use it?

• Note to gain some time the epicsLibrary.dll was
  already added before.

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Epics C Library Monitor example

• Note Same code file as before.

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Epics C Library Current Status

• Examples
• MEG Macro Generator for Experiment (productive)
• ALH ALarm Handler (on 03.04.2009 running stable
  since 3 weeks)
• Will probably be presented in the next Epics
  Meeting in October

STATUS IN PRODUCTION
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Epics C Library Online Documentation

• http//epics.web.psi.ch