X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;ds=sidebyside;f=docs%2Finterfaces%2FIWorker.html;h=13f59f4151f2f2ba94bef914c22e10802f67d6a0;hb=3dcc95e54a6bfeb4b27460d60d3c90d27ac352dd;hp=13f47b118a812d9b99eaca8f60fabc3635be3b68;hpb=a99f06d1fff8949584cd630bfaa3fa2e3cc3897e;p=poolifier.git diff --git a/docs/interfaces/IWorker.html b/docs/interfaces/IWorker.html index 13f47b11..13f59f41 100644 --- a/docs/interfaces/IWorker.html +++ b/docs/interfaces/IWorker.html @@ -1,5 +1,5 @@ -
Worker interface.
+Optional
Readonly
disconnectCluster worker disconnect.
-Optional
Readonly
idCluster worker id.
-Optional
Readonly
killCluster worker kill.
-Optional
signal: stringReadonly
onRegisters an event handler.
+Optional
Readonly
disconnectCluster worker disconnect.
+Optional
Readonly
idCluster worker id.
+Optional
Readonly
killCluster worker kill.
+Readonly
onRegisters an event handler.
The event.
The event handler.
-Readonly
onceRegisters once an event handler.
+Readonly
onceRegisters once an event handler.
The event.
The event handler.
-Optional
Readonly
terminateStop all JavaScript execution in the worker thread as soon as possible.
-Returns a Promise for the exit code that is fulfilled when the 'exit' event
is emitted.
Optional
Readonly
threadWorker thread worker id.
-Optional
Readonly
unrefCalling unref()
on a worker allows the thread to exit if this is the only
+
Optional
Readonly
terminateStop all JavaScript execution in the worker thread as soon as possible.
+Returns a Promise for the exit code that is fulfilled when the 'exit' event
is emitted.
Optional
Readonly
threadWorker thread worker id.
+Optional
Readonly
unrefCalling unref()
on a worker allows the thread to exit if this is the only
active handle in the event system. If the worker is already unref()
ed callingunref()
again has no effect.
v10.5.0
-Optional
[captureRest
...args: AnyRestAlias for emitter.on(eventName, listener)
.
Rest
...args: any[]v0.1.26
-Synchronously calls each of the listeners registered for the event namedeventName
, in the order they were registered, passing the supplied arguments
+
Optional
[captureRest
...args: AnyRestAlias for emitter.on(eventName, listener)
.
Rest
...args: any[]Synchronously calls each of the listeners registered for the event named eventName
, in the order they were registered, passing the supplied arguments
to each.
Returns true
if the event had listeners, false
otherwise.
import { EventEmitter } from 'node:events';
const myEmitter = new EventEmitter();
// First listener
myEmitter.on('event', function firstListener() {
console.log('Helloooo! first listener');
});
// Second listener
myEmitter.on('event', function secondListener(arg1, arg2) {
console.log(`event with parameters ${arg1}, ${arg2} in second listener`);
});
// Third listener
myEmitter.on('event', function thirdListener(...args) {
const parameters = args.join(', ');
console.log(`event with parameters ${parameters} in third listener`);
});
console.log(myEmitter.listeners('event'));
myEmitter.emit('event', 1, 2, 3, 4, 5);
// Prints:
// [
// [Function: firstListener],
// [Function: secondListener],
// [Function: thirdListener]
// ]
// Helloooo! first listener
// event with parameters 1, 2 in second listener
// event with parameters 1, 2, 3, 4, 5 in third listener
-
-Rest
...args: AnyRestv0.1.26
-Returns an array listing the events for which the emitter has registered +
import { EventEmitter } from 'node:events';
const myEmitter = new EventEmitter();
// First listener
myEmitter.on('event', function firstListener() {
console.log('Helloooo! first listener');
});
// Second listener
myEmitter.on('event', function secondListener(arg1, arg2) {
console.log(`event with parameters ${arg1}, ${arg2} in second listener`);
});
// Third listener
myEmitter.on('event', function thirdListener(...args) {
const parameters = args.join(', ');
console.log(`event with parameters ${parameters} in third listener`);
});
console.log(myEmitter.listeners('event'));
myEmitter.emit('event', 1, 2, 3, 4, 5);
// Prints:
// [
// [Function: firstListener],
// [Function: secondListener],
// [Function: thirdListener]
// ]
// Helloooo! first listener
// event with parameters 1, 2 in second listener
// event with parameters 1, 2, 3, 4, 5 in third listener
+
+
+Rest
...args: AnyRestReturns an array listing the events for which the emitter has registered
listeners. The values in the array are strings or Symbol
s.
import { EventEmitter } from 'node:events';
const myEE = new EventEmitter();
myEE.on('foo', () => {});
myEE.on('bar', () => {});
const sym = Symbol('symbol');
myEE.on(sym, () => {});
console.log(myEE.eventNames());
// Prints: [ 'foo', 'bar', Symbol(symbol) ]
-
-v6.0.0
-Returns the current max listener value for the EventEmitter
which is either
+
import { EventEmitter } from 'node:events';
const myEE = new EventEmitter();
myEE.on('foo', () => {});
myEE.on('bar', () => {});
const sym = Symbol('symbol');
myEE.on(sym, () => {});
console.log(myEE.eventNames());
// Prints: [ 'foo', 'bar', Symbol(symbol) ]
+
+
+Returns the number of listeners listening for the event named eventName
.
+
Returns the number of listeners listening for the event named eventName
.
If listener
is provided, it will return how many times the listener is found
in the list of the listeners of the event.
The name of the event being listened for
-Optional
listener: FunctionThe event handler function
-v3.2.0
-Returns a copy of the array of listeners for the event named eventName
.
server.on('connection', (stream) => {
console.log('someone connected!');
});
console.log(util.inspect(server.listeners('connection')));
// Prints: [ [Function] ]
-
-v0.1.26
-Alias for emitter.removeListener()
.
Rest
...args: any[]v10.0.0
-Adds the listener
function to the beginning of the listeners array for the
+
Optional
listener: FunctionThe event handler function
+Returns a copy of the array of listeners for the event named eventName
.
server.on('connection', (stream) => {
console.log('someone connected!');
});
console.log(util.inspect(server.listeners('connection')));
// Prints: [ [Function] ]
+
+
+Alias for emitter.removeListener()
.
Rest
...args: any[]Adds the listener
function to the beginning of the listeners array for the
event named eventName
. No checks are made to see if the listener
has
-already been added. Multiple calls passing the same combination of eventName
and listener
will result in the listener
being added, and called, multiple
-times.
server.prependListener('connection', (stream) => {
console.log('someone connected!');
});
-
+already been added. Multiple calls passing the same combination of eventName
+and listener
will result in the listener
being added, and called, multiple times.
+server.prependListener('connection', (stream) => {
console.log('someone connected!');
});
+
+
Returns a reference to the EventEmitter
, so that calls can be chained.
The name of the event.
-The callback function
-Rest
...args: any[]v6.0.0
-Adds a one-timelistener
function for the event named eventName
to the beginning of the listeners array. The next time eventName
is triggered, this
+
The callback function
+Rest
...args: any[]Adds a one-timelistener
function for the event named eventName
to the beginning of the listeners array. The next time eventName
is triggered, this
listener is removed, and then invoked.
server.prependOnceListener('connection', (stream) => {
console.log('Ah, we have our first user!');
});
-
+server.prependOnceListener('connection', (stream) => {
console.log('Ah, we have our first user!');
});
+
+
Returns a reference to the EventEmitter
, so that calls can be chained.
The name of the event.
-The callback function
-Rest
...args: any[]v6.0.0
-Returns a copy of the array of listeners for the event named eventName
,
+
The callback function
+Rest
...args: any[]Returns a copy of the array of listeners for the event named eventName
,
including any wrappers (such as those created by .once()
).
import { EventEmitter } from 'node:events';
const emitter = new EventEmitter();
emitter.once('log', () => console.log('log once'));
// Returns a new Array with a function `onceWrapper` which has a property
// `listener` which contains the original listener bound above
const listeners = emitter.rawListeners('log');
const logFnWrapper = listeners[0];
// Logs "log once" to the console and does not unbind the `once` event
logFnWrapper.listener();
// Logs "log once" to the console and removes the listener
logFnWrapper();
emitter.on('log', () => console.log('log persistently'));
// Will return a new Array with a single function bound by `.on()` above
const newListeners = emitter.rawListeners('log');
// Logs "log persistently" twice
newListeners[0]();
emitter.emit('log');
-
-v9.4.0
-Removes all listeners, or those of the specified eventName
.
import { EventEmitter } from 'node:events';
const emitter = new EventEmitter();
emitter.once('log', () => console.log('log once'));
// Returns a new Array with a function `onceWrapper` which has a property
// `listener` which contains the original listener bound above
const listeners = emitter.rawListeners('log');
const logFnWrapper = listeners[0];
// Logs "log once" to the console and does not unbind the `once` event
logFnWrapper.listener();
// Logs "log once" to the console and removes the listener
logFnWrapper();
emitter.on('log', () => console.log('log persistently'));
// Will return a new Array with a single function bound by `.on()` above
const newListeners = emitter.rawListeners('log');
// Logs "log persistently" twice
newListeners[0]();
emitter.emit('log');
+
+
+Removes all listeners, or those of the specified eventName
.
It is bad practice to remove listeners added elsewhere in the code,
particularly when the EventEmitter
instance was created by some other
component or module (e.g. sockets or file streams).
Returns a reference to the EventEmitter
, so that calls can be chained.
Optional
event: string | symbolv0.1.26
-Removes the specified listener
from the listener array for the event namedeventName
.
const callback = (stream) => {
console.log('someone connected!');
};
server.on('connection', callback);
// ...
server.removeListener('connection', callback);
-
+Optional
eventName: string | symbolRemoves the specified listener
from the listener array for the event named eventName
.
const callback = (stream) => {
console.log('someone connected!');
};
server.on('connection', callback);
// ...
server.removeListener('connection', callback);
+
+
removeListener()
will remove, at most, one instance of a listener from the
listener array. If any single listener has been added multiple times to the
listener array for the specified eventName
, then removeListener()
must be
called multiple times to remove each instance.
Once an event is emitted, all listeners attached to it at the
-time of emitting are called in order. This implies that anyremoveListener()
or removeAllListeners()
calls after emitting and before the last listener finishes execution
+time of emitting are called in order. This implies that any removeListener()
or removeAllListeners()
calls after emitting and before the last listener finishes execution
will not remove them fromemit()
in progress. Subsequent events behave as expected.
import { EventEmitter } from 'node:events';
class MyEmitter extends EventEmitter {}
const myEmitter = new MyEmitter();
const callbackA = () => {
console.log('A');
myEmitter.removeListener('event', callbackB);
};
const callbackB = () => {
console.log('B');
};
myEmitter.on('event', callbackA);
myEmitter.on('event', callbackB);
// callbackA removes listener callbackB but it will still be called.
// Internal listener array at time of emit [callbackA, callbackB]
myEmitter.emit('event');
// Prints:
// A
// B
// callbackB is now removed.
// Internal listener array [callbackA]
myEmitter.emit('event');
// Prints:
// A
-
+import { EventEmitter } from 'node:events';
class MyEmitter extends EventEmitter {}
const myEmitter = new MyEmitter();
const callbackA = () => {
console.log('A');
myEmitter.removeListener('event', callbackB);
};
const callbackB = () => {
console.log('B');
};
myEmitter.on('event', callbackA);
myEmitter.on('event', callbackB);
// callbackA removes listener callbackB but it will still be called.
// Internal listener array at time of emit [callbackA, callbackB]
myEmitter.emit('event');
// Prints:
// A
// B
// callbackB is now removed.
// Internal listener array [callbackA]
myEmitter.emit('event');
// Prints:
// A
+
+
Because listeners are managed using an internal array, calling this will
change the position indices of any listener registered after the listener
being removed. This will not impact the order in which listeners are called,
@@ -112,15 +120,16 @@ but it means that any copies of the listener array as returned by
the emitter.listeners()
method will need to be recreated.
When a single function has been added as a handler multiple times for a single
event (as in the example below), removeListener()
will remove the most
-recently added instance. In the example the once('ping')
listener is removed:
import { EventEmitter } from 'node:events';
const ee = new EventEmitter();
function pong() {
console.log('pong');
}
ee.on('ping', pong);
ee.once('ping', pong);
ee.removeListener('ping', pong);
ee.emit('ping');
ee.emit('ping');
-
+recently added instance. In the example the once('ping')
listener is removed:
+import { EventEmitter } from 'node:events';
const ee = new EventEmitter();
function pong() {
console.log('pong');
}
ee.on('ping', pong);
ee.once('ping', pong);
ee.removeListener('ping', pong);
ee.emit('ping');
ee.emit('ping');
+
+
Returns a reference to the EventEmitter
, so that calls can be chained.
Rest
...args: any[]v0.1.26
-By default EventEmitter
s will print a warning if more than 10
listeners are
added for a particular event. This is a useful default that helps finding
memory leaks. The emitter.setMaxListeners()
method allows the limit to be
-modified for this specific EventEmitter
instance. The value can be set toInfinity
(or 0
) to indicate an unlimited number of listeners.
EventEmitter
instance. The value can be set to Infinity
(or 0
) to indicate an unlimited number of listeners.
Returns a reference to the EventEmitter
, so that calls can be chained.
v0.3.5
-Generated using TypeDoc
Worker interface.
-