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gerrit.openbmc.org / openbmc / phosphor-virtual-sensor / d98174e9c83d1eb585b58aa0c7c24e745b4a9688
commitd98174e9c83d1eb585b58aa0c7c24e745b4a9688[log] [tgz]
authorGeorge Liu <liuxiwei@ieisystem.com>Fri Oct 25 15:48:16 2024 +0800
committerGeorge Liu <liuxiwei@ieisystem.com>Fri Oct 25 15:48:16 2024 +0800
tree1f038d8aa9ab84626f4f4fc55767bc2cde6077ae
parent2030a56a6e5be0e957d17eb329c8231952f3ea2e [diff]
Add the main.cpp file

Separate the main method from virtualSensor.cpp and add it to the
main.cpp file.

Change-Id: Ife3dd9bb6dee552d944399bcc769fc6c4ba54a4b
Signed-off-by: George Liu <liuxiwei@ieisystem.com>
3 files changed
tree: 1f038d8aa9ab84626f4f4fc55767bc2cde6077ae
  1. subprojects/
  2. test/
  3. .clang-format
  4. .editorconfig
  5. .gitignore
  6. .prettierrc.yaml
  7. calculate.cpp
  8. calculate.hpp
  9. dbusSensor.cpp
  10. dbusSensor.hpp
  11. dbusUtils.cpp
  12. dbusUtils.hpp
  13. exprtkTools.hpp
  14. LICENSE
  15. main.cpp
  16. meson.build
  17. meson.options
  18. OWNERS
  19. phosphor-virtual-sensor.service.in
  20. README.md
  21. thresholds.hpp
  22. virtual_sensor_config.json
  23. virtualSensor.cpp
  24. virtualSensor.hpp
README.md

phosphor-virtual-sensor

phosphor-virtual-sensor reads the configuration file virtual_sensor_config.json from one of three locations:

  1. The current directory.
  2. /var/lib/phosphor-virtual-sensor
  3. /usr/share/phosphor-virtual-sensor

By default the repository will install a sample config into (3).

There are two types of data in this file.

virtual sensor configuration information

See virtual_sensor_config.json in this repository for an example. Sensors added this way can use any expression that is accepted by exprtk.

information to get a virtual sensor configuration from D-Bus

For example:

{
  "Desc": {
    "Config": "D-Bus",
    "Type": "ModifiedMedian"
  }
}

Sensors added this way can only use a set of restricted calculations. Currently supported types are Average, Maximum, Minimum, Sum and ModifiedMedian.

The virtual sensor configuration information needs to be added into the relevant hardware configuration file in entity-manager. This method of adding a virtual sensor allows a recipe that builds for different hardware configurations to have different virtual sensors for each configuration.

The virtual sensor configuration in entity manager follows a different format to the JSON in virtual_sensor_config.json (specified in entity-manager/schemas/VirtualSensor.json).