Module process 

Process list logic: ordering, filtering, and tree construction.

This module is the list half of the process view. The row data itself lives in crate::model::ProcessSnapshot; nothing here mutates a snapshot, because §10.4 requires published snapshots to stay immutable. Every entry point therefore returns indices into the slice it was given, in display order.

What §7.2 demands of this module

• Stable sorting with a PID/start-time tie-breaker. Every comparison ends in a crate::model::ProcessIdentity comparison, so rows with equal keys keep the same relative order on every refresh and selection does not jump.
• Unavailable is not zero (§26). A metric that was never measured sorts to the end of the list in both directions instead of pretending to be 0.
• Plain text filtering over name, command, PID, and user, with the user-only and hide-kernel-threads toggles expressed as separate composable predicates.
• Tree mode that preserves parent-child relationships, keeps children under their parents when sorted, and survives a malformed parent graph.

Rendering a tree row

ProcessTree emits a flat pre-order list of TreeRows carrying a depth, a last-sibling flag, and (via ProcessTree::continuation_flags) whether an ancestor still has siblings below it. That is everything a renderer needs for the strict-ASCII shape §5.1 requires:

systemd
+- sshd
|  `- bash
`- cron

Example

use monitrs_core::process::{ProcessFilter, ProcessSort, flat_order};

let filter = ProcessFilter::parse("rustc");
flat_order(processes, &filter, ProcessSort::default())

Structs

Coverage

How much of a sum’s membership actually contributed to it.

PlainPattern

A literal, case-insensitive substring pattern.

ProcessFilter

The complete set of active row filters for the process view (§7.2).

ProcessSort

A complete process table ordering: which column, and which way round.

ProcessTree

A process tree flattened into display order.

SubtreeUsage

What a process and its descendants are using, together.

Summed

One summed metric and the coverage of the sum.

TreeRow

One row of a rendered process tree.

UnknownSortKey

The error returned when a sort field name is not one this build knows.

Enums

FilterPattern

How a filter query is interpreted.

ProcessPredicate

One independently toggleable row test (§7.2).

ProcessSortKey

A sortable column of the process table (§7.2).

SortDirection

Which end of the ordering comes first.

Functions

flat_order

The visible rows of the flat process view, in display order.