specifyStartupTiming method
- @protected
- StartupTimingType specifier, {
- Map<
String, dynamic> tags = const {}, - List<
Reference> references = const [],
Creates a span with globalTracer
from the start of load until now.
The specifier
indicates the purpose of this span.
Any tags
or references
specified will be added to this span.
Implementation
@protected
void specifyStartupTiming(
StartupTimingType specifier, {
Map<String, dynamic> tags = const {},
List<Reference> references = const [],
}) {
// Load didn't start
if (_loadContext == null || _startLoadTime == null) {
throw StateError(
'Calling `specifyStartupTiming` before calling `load()`');
}
final tracer = globalTracer();
if (tracer == null) {
return null;
}
tracer
.startSpan(
'$name.${specifier.operationName}',
references: [tracer.followsFrom(_loadContext!)]..addAll(references),
startTime: _startLoadTime,
tags: _defaultTags..addAll(tags),
)
?.finish();
_startLoadTime = null;
}