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gerrit.openbmc.org / openbmc / phosphor-virtual-sensor / ce4241cb7173b41ace52a272dc6a52295f949385
commitce4241cb7173b41ace52a272dc6a52295f949385[log] [tgz]
authorPatrick Williams <patrick@stwcx.xyz>Wed Jul 12 11:15:56 2023 -0500
committerPatrick Williams <patrick@stwcx.xyz>Wed Jul 12 11:15:56 2023 -0500
treeb68ecc1d185758abf3beacf79d3f43e4cbd127c4
parent1226f20832dc04425b8f3113ae57d5dc8a6ec914 [diff]
build: upgrade to C++23

Meson 1.1.1 and GCC-13 both support C++23 and a sufficient portion of
the standard has been implemented.  Upgrade the build to leverage it.

Change-Id: I89744897e2829000688b4f34752e326bc6180236
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
1 file changed
tree: b68ecc1d185758abf3beacf79d3f43e4cbd127c4
  1. subprojects/
  2. .clang-format
  3. .editorconfig
  4. .gitignore
  5. .prettierrc.yaml
  6. dbusSensor.hpp
  7. dbusUtils.hpp
  8. exprtkTools.hpp
  9. LICENSE
  10. meson.build
  11. OWNERS
  12. phosphor-virtual-sensor.service.in
  13. README.md
  14. thresholds.hpp
  15. virtual_sensor_config.json
  16. virtualSensor.cpp
  17. 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 configuraton from D-Bus

For example:

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

Sensors added this way can only use a set of restricted calculations. Currently the only type supported is 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).