========= Internals ========= Here is a quick overview of the most important code parts. They can be found in the telemetry folder. * TelemetryController: Main telemetry logic, e.g. assembling pings, local storage (when archiving is enabled), preference changes, testing * Telemetry.cpp contains most of the public interface, implements the IDL * The different data types for telemetry are handled in TelemetryHistogram, TelemetryScalar, TelemetryEvent. * TelemetryEnvironment: A helper for gathering environment data, like build version or graphics data * TelemetryScheduler: Starts regular jobs for collecting and sending data * TelemetrySend: Sending and caching of pings * TelemetryStorage: Handles writing pings to disk for TelemetrySend * TelemetrySession: Collects data for a browsing session, includes many of the most important probes (aka metrics) * Policy: A layer of indirection added to provide testability. A common pattern in many files * pings/: Contains definitions and handling for most ping types, like EventPing More details on different topics can be found in these chapters: .. toctree:: :maxdepth: 2 :titlesonly: :glob: **