tests

Documentation

Index

• type TraceEvent
• type TracePipe
  • func NewTracePipe() (*TracePipe, error)
  • func (t *TracePipe) Channel() (<-chan *TraceEvent, <-chan error)
  • func (t *TracePipe) Close() error
  • func (t *TracePipe) ReadLine() (*TraceEvent, error)

Types

type TraceEvent

type TraceEvent struct {
	Raw       string
	Task      string
	PID       string
	CPU       string
	Flags     string
	Timestamp string
	Function  string
	Message   string
}

TraceEvent contains the raw event as well as the contents of every field as string, as defined under "Output format" in https://www.kernel.org/doc/Documentation/trace/ftrace.txt

type TracePipe

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

TracePipe to read from /sys/kernel/debug/tracing/trace_pipe Note that data can be read only once, i.e. if you have more than one tracer / channel, only one will receive an event: "Once data is read from this file, it is consumed, and will not be read again with a sequential read." https://www.kernel.org/doc/Documentation/trace/ftrace.txt

func NewTracePipe

func NewTracePipe() (*TracePipe, error)

NewTracePipe instantiates a new trace pipe

func (*TracePipe) Channel

func (t *TracePipe) Channel() (<-chan *TraceEvent, <-chan error)

Channel returns a channel of events and an other for errors

func (*TracePipe) Close

func (t *TracePipe) Close() error

Close the trace pipe

func (*TracePipe) ReadLine

func (t *TracePipe) ReadLine() (*TraceEvent, error)

ReadLine reads a line