Crate diagnostics_hierarchy

Diagnostics hierarchy

This library provides a tree strcture used to store diagnostics data such as inspect and logs, as well as utilities for reading from it, serializing and deserializing it and testing it.

Modules

• macros
  Macro utilities for building a DiagnosticsHierarchy.
• serialization
  Inspect Format
• testing

Macros

• hierarchy
  This macro simplifies creating diagnostics hierarchies, to remove the need of writing multiple nested hierarchies and manually writing all properties.

Structs

• DiagnosticsHierarchy
  A hierarchy of nodes representing structured data, such as Inspect or structured log data.
• DiagnosticsHierarchyIterator
• ExponentialHistogram
  An exponential histogram property.
• ExponentialHistogramParams
  The parameters of an exponential histogram.
• HierarchyMatcher
• LinearHistogram
  A linear histogram property.
• LinearHistogramParams
  The parameters of a linear histogram.
• MissingValue
  A value that couldn’t be loaded in the hierarchy and the reason.

Enums

• ArrayContent
  Represents the content of a DiagnosticsHierarchy array property: a regular array or a linear/exponential histogram.
• ArrayFormat
  Format in which the array will be read.
• Error
  Errors that can happen in this library.
• MissingValueReason
  Reasons why the value couldn’t be loaded.
• Property
  A named property. Each of the fields consists of (name, value).

Constants

• EXPONENTIAL_HISTOGRAM_EXTRA_SLOTS
  Extra slots for an exponential histogram: 3 parameter slots (floor, initial step and step multiplier) and 2 overflow slots.
• LINEAR_HISTOGRAM_EXTRA_SLOTS
  Extra slots for a linear histogram: 2 parameter slots (floor, step size) and 2 overflow slots.

Traits

• DiagnosticsHierarchyGetter
  A type which can function as a “view” into a diagnostics hierarchy, optionally allocating a new instance to service a request.

Functions

• filter_hierarchy
  Filters a diagnostics hierarchy using a set of path selectors and their associated property selectors.
• filter_tree
  Filters a hierarchy given a tree selector.
• select_from_hierarchy
  Applies a single selector to a DiagnosticsHierarchy, returning a vector of tuples for every property in the hierarchy matched by the selector.