PVXS client/server for PVA Protocol

This module provides a library (libpvxs.so or pvxs.dll) and a set of CLI utilities acting as PVAccess protocol client and/or server.

PVXS is functionally equivalent to the pvDataCPP and pvAccessCPP modules, which it hopes to eventually supplant (Ok, the author hopes).

• VCS: https://github.com/mdavidsaver/pvxs

• Docs: https://mdavidsaver.github.io/pvxs

• Issues (see Reporting a Bug)

• Contributing

Dependencies

• A C++11 compliant compiler

• GCC >= 4.8

• Visual Studio >= 2015 / 12.0’

• clang

• EPICS Base >=3.15.1

• libevent >=2.0.1 (Optionally bundled)

• (optional) CMake >=3.1, only needed when building bundled libevent

See Building from Source for details.

Download

Releases are published to https://github.com/mdavidsaver/pvxs/releases. See Release Policy for details.

Contents:

• Overview
  • Basics
    • What is EPICS?
    • What is PVAccess?
    • What is a PV?
  • PVXS Module
  • Comparison with pvDataCPP
    • Sub-field Lookup
    • Structure Iteration
    • Testing for changed fields
    • Tracking changed fields
    • NTScalar
    • Custom Structures
  • Comparison with pvAccessCPP
• PVA Network Configuration
  • Big Picture
  • Environment variables
  • Address Spec.
• Examples
  • Shortest Client Get
  • Shortest Server
  • Client Demo
  • Mailbox Server
• Building from Source
  • Running Tests
  • Cross-compiling libevent2
• Including PVXS in your application
• Command Line Tools
  • Troubleshooting with Virtual Cable Tester
• Value Container API
  • Common Type Definitions
    • NTScalar and NTScalarArray
    • Forward Compatibility
    • time_t
    • alarm_t
    • NTEnum
    • NTNDArray
    • NTTable
    • NTURI
  • Defining Custom Types
  • Value
    • Field Lookup
    • Iteration
  • Array fields
• Client API
  • Configuration
  • Making Requests
    • Get/Info
    • Put
    • RPC
    • Operation and Result
    • Monitor
    • Connect
    • Threading
    • Ownership
  • pvRequest
    • Syntax
  • Misc
• Server API
  • SharedPV and StaticSource
  • Data Source
    • Threading
    • Ownership and Lifetime
    • API
  • Configuration
• IOC Integration
  • IOC shell
  • Adding custom PVs to Server
• QSRV 2
  • IOC Shell
  • Single PV
  • Group PV
    • QSRV Groups
  • Access Security
  • PVAccess Links
• Misc
  • Logging
    • Controlling Logging
    • Logging from User applications
  • Identification
  • Unit-test helpers
  • Utilities
• Details
  • Reporting a Bug
    • Packet Capture
  • Release Policy
  • Expert APIs
  • Contributing
  • Implementation Notes
• Release Notes
  • 1.2.3 (Sept 2023)
  • 1.2.2 (June 2023)
  • 1.2.1 (June 2023)
  • 1.2.0 (May 2023)
  • 1.1.4 (April 2023)
  • 1.1.3 (Mar 2023)
  • 1.1.2 (Feb 2023)
  • 1.1.1 (Dec 2022)
  • 1.1.0 (Nov 2022)
  • 1.0.1 (Oct 2022)
  • 1.0.0 (Sept 2022)
  • 0.3.1 (June 2022)
  • 0.3.0 (May 2022)
  • 0.2.2 (Jan 2022)
  • 0.2.1 (Oct 2021)
  • 0.2.0 (July 2021)
  • 0.1.5 (May 2021)
  • 0.1.4 (APR 2021)
  • 0.1.3 (FEB 2021)
  • 0.1.2 (FEB 2021)
  • 0.1.1 (Jan 2021)
  • 0.1.0 (Dec 2020)

Indices and tables

• Index

• Module Index

• Search Page