Struct counters::Table

pub struct Table { /* fields omitted */ }

Helper to print counters as a table in csv format.

Example

use counters::*;
 
let counters = Counters::new();
let table = Table::new(&["foo", "bar", "meh"]);
 
for _ in 0..5 {
    counters.event("bar");
}
counters.event("foo");
 
// "baz" isn't in the table labels, it will be ignored.
counters.event("baz");
 
table.add_row(&counters);
 
// Start a second row...
counters.reset_all();
 
counters.event("foo");
 
table.add_row(&counters);

// This prints the following to stdout:
// foo,bar,meh
// 1,5,0
// 1,0,0
table.print_to_stdout();

Methods

impl Table

pub fn new(label_slice: &[&'static str]) -> Self

pub fn add_row(&self, row: &Counters) -> usize

Add collected counters as a row, preserving only the counters that match this table's labels.

pub fn print(&self, to: &mut dyn Write) -> Result<()>

Print in csv format to an io stream.

pub fn print_to_stdout(&self)

Print in csv format to stdout.

Trait Implementations

impl Clone for Table

fn clone(&self) -> Table

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Table

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.