Contents

os_signpost(_:dso:log:name:signpostID:_:_:)

Logs a point of interest in your code as a time interval or as an event for debugging performance in Instruments, and includes a detailed message.

Declaration

func os_signpost(_ type: OSSignpostType, dso: UnsafeRawPointer = #dsohandle, log: OSLog, name: StaticString, signpostID: OSSignpostID = .exclusive, _ format: StaticString, _ arguments: any CVarArg...)

Parameters

  • type:

    The type of signpost to log.

  • log:

    A log object to log the signpost to.

  • name:

    The name of the signpost.

  • signpostID:

    A signpost identifier you use to disambiguate between signposts with the same name.

  • format:

    A constant string or format string that produces a human-readable log message.

  • arguments:

    Additional arguments to substitute into the format string parameter. Pass the expected number of arguments in the order that they appear in the string. If format is a constant string, don’t include any additional arguments.

See Also

Measure Events