Overview

A metric tree consisting of children groups and leaf metrics.

Size: 16 bytes / 128 bits on 32-bit platforms - next, name, metrics, children.

Inheritance diagram for pw::metric::Group:

Public Member Functions
	Group (Token name)

	Group (Token name, GroupList &groups)

Token	name () const

	Group (Group const &)=delete

void	operator= (const Group &)=delete

void	Add (UntypedMetric &metric)

void	Add (Group &group)

MetricList &	metrics ()

GroupList &	children ()

const MetricList &	metrics () const

const GroupList &	children () const

void	Dump () const

Static Public Member Functions
static void	Dump (const GroupList &groups, int indent_level=0)

Member Function Documentation

◆ Dump()

void pw::metric::Group::Dump ( ) const

Recursively dump a metrics group or groups to pw_log. Level determines the indentation indent_level up to a maximum of 4. Produces output like:

"$6doqFw==": {
  "$05OCZw==": {
    "$VpPfzg==": 1,
    "$LGPMBQ==": 1.000000,
    "$+iJvUg==": 5
  },
  "$9hPNxw==": 65,
  "$oK7HmA==": 13,
  "$FCM4qQ==": 0
}

Note the metric names are tokenized with base64. Decoding requires using the Pigweed detokenizer. With a detokenizing-enabled logger, you could get something like:

"i2c_1": {
  "gyro": {
    "num_sampleses": 1,
    "init_time_us": 1.000000,
    "initialized": 5,
  }
  "bus_errors": 65,
  "transactions": 13,
  "bytes_sent": 0,
}

The documentation for this class was generated from the following file:

pw_metric/public/pw_metric/metric.h

Overview

Public Member Functions

Static Public Member Functions

Member Function Documentation

◆ Dump()