Examples DynamicControl

Dynamic control demo

This example shows how to enable runtime control of Logme and change settings from another terminal.

DynamicControl

This example shows how to enable runtime control of Logme and change settings from another terminal.

What it does

• Starts the Logme control server (TCP, no SSL).
• Spawns two worker threads (t1, t2).
• Each thread logs:
  • to the default channel,
  • to its own channel (t1/t2),
  • and then to the same channel with two different subsystem IDs.

The example prints the control server address and a list of useful commands on startup.

Build

Enable the example and the tool:

cmake -S . -B build -G Ninja \
  -DLOGME_BUILD_EXAMPLES=ON \
  -DLOGME_BUILD_TOOLS=ON
cmake --build build -j

Run

Terminal 1:

./DynamicControl

Terminal 2 (replace the port if you changed it):

./logmectl -p 7791 list
./logmectl -p 7791 channel disable t1
./logmectl -p 7791 channel enable t1
./logmectl -p 7791 channel level t2 error

./logmectl -p 7791 subsystem list
./logmectl -p 7791 subsystem mode blacklist
./logmectl -p 7791 subsystem add wrk1

Notes

• subsystem mode blacklist blocks subsystems present in the list.
• subsystem mode whitelist allows only subsystems present in the list.