Module prelude

Expand description

Commonly used items for convenient importing - includes macros, types, and traits

Macros§

debug: Logs a message at the debug level.
error: Logs a message at the error level.
fatal: Logs a message representing a crash or panic
fmetric: Records a float metric.
imetric: Records a integer metric.
info: Logs a message at the info level.
instrument_named: Instruments a future with a named span. Usage: instrument_named!(future, "span_name")
log: The standard logging macro.
log_enabled: Determines if a message logged at the specified level in that module will be logged.
span_async_named: Instruments an async block with a named span using a static string. This creates both the SpanLocation and instruments the future in one macro call.
span_scope: Records a sync span as two thread events
span_scope_named: Records a span with a name that is determined at runtime. The span name still needs to be statically allocated.
static_span_desc
static_span_location: Creates a static SpanLocation for use with named async spans. This is an internal implementation detail - users should use instrument_named! instead.
trace: Logs a message at the trace level.
warn: Logs a message at the warn level.

DualTime
InstrumentedFuture: A wrapper that instruments a future with async span tracing
InstrumentedNamedFuture: A wrapper that instruments a future with named async span tracing
ParseLevelError
ProcessInfo
SpanContextFuture: A future wrapper that establishes a span context on every poll.

Level: An enum representing the verbosity levels for logging.
LevelFilter: An enum representing the available verbosity level filters of the logger.
LodFilter: An enum representing the available verbosity level filters of the logger.
Verbosity: An enum representing the level of verbosity for metrics/thread_spans/spans.

InstrumentFuture: Trait for adding instrumentation to futures
TracingRuntimeExt: Extension trait for tokio::runtime::Builder that adds tracing lifecycle callbacks.

current_span_id: Returns the current span ID from the async call stack. Returns 0 (root) if no span is active.
frequency
max_level: Returns the current maximum log level.
max_lod: Returns the current maximum log level.
now
set_max_level: Sets the global maximum log level.
set_max_lod: Sets the global maximum log level.
spawn_with_context: Spawns a future on the tokio runtime while preserving the current span context.