Simple example of joinable task using threadpool

Introduced classes

class StringTask

pthreads :: StringTask

Task computing a string

Redefined classes

redef class Sys

pthreads :: jointask_example $ Sys

The main class of the program.

All class definitions

class StringTask

pthreads $ StringTask

Task computing a string
redef class Sys

pthreads :: jointask_example $ Sys

The main class of the program.
package_diagram pthreads::jointask_example jointask_example pthreads::threadpool threadpool pthreads::jointask_example->pthreads::threadpool pthreads::concurrent_collections concurrent_collections pthreads::threadpool->pthreads::concurrent_collections ...pthreads::concurrent_collections ... ...pthreads::concurrent_collections->pthreads::concurrent_collections a_star-m a_star-m a_star-m->pthreads::jointask_example


module abstract_collection

core :: abstract_collection

Abstract collection classes and services.
module abstract_text

core :: abstract_text

Abstract class for manipulation of sequences of characters
module array

core :: array

This module introduces the standard array structure.
module bitset

core :: bitset

Services to handle BitSet
module bytes

core :: bytes

Services for byte streams and arrays
module circular_array

core :: circular_array

Efficient data structure to access both end of the sequence.
module codec_base

core :: codec_base

Base for codecs to use with streams
module codecs

core :: codecs

Group module for all codec-related manipulations
module collection

core :: collection

This module define several collection classes.
module concurrent_collections

pthreads :: concurrent_collections

Introduces thread-safe concurrent collections
module core

core :: core

Standard classes and methods used by default by Nit programs and libraries.
module environ

core :: environ

Access to the environment variables of the process
module error

core :: error

Standard error-management infrastructure.
module exec

core :: exec

Invocation and management of operating system sub-processes.
module file

core :: file

File manipulations (create, read, write, etc.)
module fixed_ints

core :: fixed_ints

Basic integers of fixed-precision
module fixed_ints_text

core :: fixed_ints_text

Text services to complement fixed_ints
module flat

core :: flat

All the array-based text representations
module gc

core :: gc

Access to the Nit internal garbage collection mechanism
module hash_collection

core :: hash_collection

Introduce HashMap and HashSet.
module iso8859_1

core :: iso8859_1

Codec for ISO8859-1 I/O
module kernel

core :: kernel

Most basic classes and methods.
module list

core :: list

This module handle double linked lists
module math

core :: math

Mathematical operations
module native

core :: native

Native structures for text and bytes
module numeric

core :: numeric

Advanced services for Numeric types
module protocol

core :: protocol

module pthreads

pthreads :: pthreads

Main POSIX threads support and intro the classes Thread, Mutex and Barrier
module queue

core :: queue

Queuing data structures and wrappers
module range

core :: range

Module for range of discrete objects.
module re

core :: re

Regular expression support for all services based on Pattern
module ropes

core :: ropes

Tree-based representation of a String.
module sorter

core :: sorter

This module contains classes used to compare things and sorts arrays.
module stream

core :: stream

Input and output streams of characters
module text

core :: text

All the classes and methods related to the manipulation of text entities
module time

core :: time

Management of time and dates
module union_find

core :: union_find

union–find algorithm using an efficient disjoint-set data structure
module utf8

core :: utf8

Codec for UTF-8 I/O


module threadpool

pthreads :: threadpool

Introduces a minimal ThreadPool implementation using Tasks


module a_star-m


# Simple example of joinable task using threadpool
module jointask_example is example

import threadpool

# Task computing a string
class StringTask
	super JoinTask

	# Sleeping time
	var sec: Int

	# result of `self` execution
	var value: String

	# ID for printing
	var id: Int

	redef fun main do
		nanosleep(sec, 0)
		value += " id: {id}"

var tp = new ThreadPool
var t0 = new StringTask(10, "First, long task", 0)
var tasks = new Array[StringTask]
for i in 5.times do
	tasks.add(new StringTask(1, "Small task", i + 1))
for t in tasks do tp.execute(t)
for t in tasks do
	print t.value
print t0.value