Macro tracelogging::provider_enabled

macro_rules! provider_enabled {
    ($provider_symbol:ident, $level:expr, $keyword:expr) => { ... };
}

Returns true if a write_event! macro using the specified PROVIDER_SYMBOL, level, and keyword would be enabled, false if it would be disabled.

Usage: let enabled = provider_enabled!(PROVIDER_SYMBOL, level, keyword);

The PROVIDER_SYMBOL parameter should be the original symbol name created by define_provider!, not a reference or alias.

The level and keyword parameters must be compile-time constant expressions.

Note that write_event! already checks whether the tracepoint is enabled – it skips evaluating the field value expressions and skips sending the event if the tracepoint is not enabled. You only need to make your own call to provider_enabled! if you want to control something other than write_event!.

Implementation details: For ETW, this macro is implemented as a call to PROVIDER_SYMBOL.enabled(level, keyword).