telemetry

func CountFlagValue ¶

func CountFlagValue(prefix string, flagSet flag.FlagSet, flagName string)

CountFlagValue creates a counter for the flag value if it is set and increments the counter. The name of the counter is the concatenation of prefix, the flagName, ":", and value.String() for the flag's value.

func CountFlags ¶

func CountFlags(prefix string, flagSet flag.FlagSet)

CountFlags creates a counter for every flag that is set and increments the counter. The name of the counter is the concatenation of prefix and the flag name.

func Dir ¶

func Dir() string

Dir returns the telemetry directory.

func Inc ¶

func Inc(name string)

Inc increments the counter with the given name.

func MaybeChild ¶

func MaybeChild()

MaybeChild executes the telemetry child logic if the calling program is the telemetry child process, and does nothing otherwise. It is meant to be called as the first thing in a program that uses telemetry.OpenCounters but cannot call telemetry.OpenCounters immediately when it starts.

func MaybeParent ¶

func MaybeParent()

MaybeParent does a once a day check to see if the weekly reports are ready to be processed or uploaded, and if so, starts the telemetry child to do so. It should only be called by cmd/go, and only after OpenCounters and MaybeChild have already been called.

func Mode ¶

func Mode() string

Mode returns the current telemetry mode.

The telemetry mode is a global value that controls both the local collection and uploading of telemetry data. Possible mode values are:

• "on": both collection and uploading is enabled
• "local": collection is enabled, but uploading is disabled
• "off": both collection and uploading are disabled

When mode is "on", or "local", telemetry data is written to the local file system and may be inspected with the gotelemetry command.

If an error occurs while reading the telemetry mode from the file system, Mode returns the default value "local".

func NewCounter ¶

func NewCounter(name string) *counter.Counter

NewCounter returns a counter with the given name.

func NewStackCounter ¶

func NewStackCounter(name string, depth int) *counter.StackCounter

NewStackCounter returns a new stack counter with the given name and depth.

func OpenCounters ¶

func OpenCounters()

OpenCounters opens the counter files for writing if telemetry is supported on the current platform (and does nothing otherwise).

func SetMode ¶

func SetMode(mode string) error

SetMode sets the global telemetry mode to the given value.

See the documentation of Mode for a description of the supported mode values.

An error is returned if the provided mode value is invalid, or if an error occurs while persisting the mode value to the file system.