elixir - OTP: Start GenEvent under Supervisor With Name -

-

i'm trying create genevent process specific name (for question, i'm going {:global, :x}). if create genevent normally, e.g. genevent.start_link([name: {:global, :x}]), can access genevent @ name. that's good. want create genevent under supervision tree. this, put genevent supervision.spec worker spec., , that's when things blow up.

iex(1)> {:ok, sup} = supervisor.start_link([], strategy: :one_for_one) {:ok, #pid<0.127.0>} iex(2)> supervisor.start_child(sup, supervisor.spec.worker(genevent, [name: {:global, :x}], [])) {:error,  {{:exit,                                                                                                                                                                                        {:function_clause,                                                                                                                                                                             [{genevent, :start_link, [name: {:global, :x}],                                                                                                                                                 [file: 'lib/gen_event.ex', line: 358]},                                                                                                                                                      {:supervisor, :do_start_child, 2, [file: 'supervisor.erl', line: 343]},                                                                                                                       {:supervisor, :handle_start_child, 2, [file: 'supervisor.erl', line: 715]},                                                                                                                   {:supervisor, :handle_call, 3, [file: 'supervisor.erl', line: 400]},                                                                                                                          {:gen_server, :try_handle_call, 4, [file: 'gen_server.erl', line: 629]},                                                                                                                      {:gen_server, :handle_msg, 5, [file: 'gen_server.erl', line: 661]},      {:proc_lib, :init_p_do_apply, 3, [file: 'proc_lib.erl', line: 239]}]}},   {:child, :undefined, genevent, {genevent, :start_link, [name: {:global, :x}]},    :permanent, 5000, :worker, :dynamic}}}

what doing wrong?

(this answer comes asonge in #elixir on irc.freenode.net. thanks!)

the args value supervisor.spec.worker function takes list of arguments pass function. genevent.start_link\1, takes single argument list. such, need pass list containing 1 element (the args array start_link) list wanted start_link. such, call worker supervisor.spec.worker(genevent, [[name: {:global, :x}]], []).


Comments

Post a Comment

Popular posts from this blog

How to show in django cms breadcrumbs full path? -

-
need advice - how show in breadcrumbs whole path article or page? i've got code: {% ance in ancestors %} <li> {% if not forloop.last %} <a href="{{ ance.get_absolute_url }}">{{ ance.get_menu_title }}</a> {% else %} <span class="active">{{ ance.get_menu_title }}</span> {% endif %} </li> {% endfor %} but shows "home" , current page. how modify show whole path in breadcrumbs? i've found in file menu_tags.py code calls ancestors. @ least there class showbreadcrumbs: class showbreadcrumb(inclusiontag): """ shows breadcrumb node has same url current request - start level: after level should breadcrumb start? 0=home - template: template used render breadcrumb """ name = 'show_breadcrumb' template = 'menu/dummy.html' options = options( argument('start_level', default=0, require...
Read more

php - Invalid Cofiguration - yii\base\InvalidConfigException - Yii2 -

-
Image
i've installed yii2-user module/dektrium yii2-app-basic application command composer require "dektrium/yii2-user:0.9.*@dev" config/console.php return [ . . 'modules' => [ 'gii' => 'yii\gii\module', 'user' => [ 'class' => 'dektrium\user\module', ], ], . . ] config/web.php 'components' => [ . . /* 'user' => [ 'identityclass' => 'app\models\user', 'enableautologin' => true, ], */ 'modules' => [ 'user' => [ 'class' => 'dektrium\user\module', ], ], . . ] after that, run command $ php yii migrate/up --migrationpath=@vendor/dektrium/yii2-user/migrations updating database schema . but, when run http://localhost/mylawsuit/yii/web/index.php?r=u...
Read more

ruby on rails - npm error: tunneling socket could not be established, cause=connect ETIMEDOUT -

-
i have app uses rails framework , implements angularjs part of front end. i have pushed heroku , have heroku toolbelt installed, when try migrate db using "heroku run rake db:migrate" receive following error(s): installing core plugins heroku-cli-addons, heroku-apps, heroku-fork, heroku-git, heroku-local, heroku-run, heroku-status... error installing package. try running again gode_debug=info see more output. ! `run` not heroku command. ! perhaps meant `-h`, `2fa`, `auth`, `join`, `open`, `orgs`, `pg`, `ps` or `rake`. ! see `heroku help` list of available commands. i run command "gode_debug=info heroku run rake db:migrate" , receive error: npm err! darwin 14.5.0 npm err! argv "/users/christopher_pelnar/.heroku/node-v4.2.1-darwin-x64/bin/node" "/users/christopher_pelnar/.heroku/node-v4.2.1-darwin-x64/lib/node_modules/npm/cli.js" "install" "heroku-cli-addons" "heroku-apps" "heroku-fork...
Read more