parallel

Documentation

Overview

Package parallel runs a batch of jobs a few at a time, as many as a server answers at once.

Index

• func Each(ctx context.Context, n, workers int, fn func(ctx context.Context, i int) error) error

Functions

func Each

func Each(ctx context.Context, n, workers int, fn func(ctx context.Context, i int) error) error

Each runs fn for each of n jobs, at most workers at a time, and returns the first error, which ends the run: jobs not started stay so, and running ones see it as their context's cause. A run the caller's context cut short returns that cause, never nil.