loghelper

package
v0.0.0-...-fd3cab2 Latest Latest
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Published: Apr 19, 2024 License: MIT Imports: 6 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func CloseLogError

func CloseLogError(closer io.Closer, logger commontypes.Logger, msg string)

Closes closer. If an error occurs, it is logged at WARN level together with msg

func MergeOverwrite

func MergeOverwrite(upserts ...commontypes.LogFields) commontypes.LogFields

MergeOverwrite will create a new LogFields and add all the properties from upserts on it. Key conflicts are resolved by preferring the upserted value.

func MergePreserve

func MergePreserve(extras ...commontypes.LogFields) commontypes.LogFields

MergePreserve will create a new LogFields and add all the properties from extras on it. Key conflicts are resolved by prefixing the key for the new value with underscores until there's no conflict.

Types

type IfNotStopped

type IfNotStopped struct {
	// contains filtered or unexported fields
}

func NewIfNotStopped

func NewIfNotStopped(d time.Duration, f func()) *IfNotStopped

If Stop is called prior to expiry of d, f won't be executed. Otherwise, f will be executed and Stop will block until f returns. That makes it different from the standard library's time.AfterFunc() whose Stop() function will return while f is still running.

func (*IfNotStopped) Stop

func (ins *IfNotStopped) Stop()

type LogarithmicTaper

type LogarithmicTaper struct {
	// contains filtered or unexported fields
}

LogarithmicTaper provides logarithmic tapering of an event sequence. For example, if the taper is Triggered 50 times with a function that simply prints the provided count, the output would be 1,2,4,8,16,32.

func (*LogarithmicTaper) Count

func (tap *LogarithmicTaper) Count() uint64

Count returns the internal count of the taper

func (*LogarithmicTaper) Reset

func (tap *LogarithmicTaper) Reset(f func(oldCount uint64))

Reset resets the count to 0 and then calls f with the previous count iff it wasn't already 0

func (*LogarithmicTaper) Trigger

func (tap *LogarithmicTaper) Trigger(f func(newCount uint64))

Trigger increments a count and calls f iff the new count is a power of two

type LoggerWithContext

type LoggerWithContext interface {
	commontypes.Logger
	MakeChild(extraContext commontypes.LogFields) LoggerWithContext
	MakeUpdated(updatedContext commontypes.LogFields) LoggerWithContext
	ErrorIfNotCanceled(msg string, ctx context.Context, fields commontypes.LogFields)
}

func MakeRootLoggerWithContext

func MakeRootLoggerWithContext(logger commontypes.Logger) LoggerWithContext

MakeRootLoggerWithContext creates a base logger by wrapping a commontypes.Logger. NOTE! Most loggers should extend an existing LoggerWithContext using MakeChild!

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