X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=README.MD;h=bb4df77721861516c612e81468d04d0998194151;hb=987e0026bb24b2c6750d26a624cc41073a022792;hp=1e661a2de4636df54c5d43100d82721e896183ba;hpb=a63eb03c3a3ddaf0c2cc938458c7958352d02f94;p=poolifier.git
diff --git a/README.MD b/README.MD
index 1e661a2d..bb4df777 100644
--- a/README.MD
+++ b/README.MD
@@ -1,17 +1,34 @@
-# Node Pool :arrow_double_up: :on:
-[](https://github.com/standard/standard)
+# Node Thread Pool :arrow_double_up: :on:
+[](https://standardjs.com)
[](https://badgen.net/dependabot/dependabot/dependabot-core/?icon=dependabot)
[](https://github.com/pioardi/node-pool/actions)
+Contents
+
+
+ Overview
Node pool contains two worker-threads pool implementations , you don' t have to deal with worker-threads complexity.
The first implementation is a static thread pool , with a defined number of threads that are started at creation time .
-The second implementation is a dynamic thread pool with a number of threads started at creation time and other threads created when the load will increase ( with an upper limit ).
+The second implementation is a dynamic thread pool with a number of threads started at creation time and other threads created when the load will increase ( with an upper limit ), the new created threads will be stopped after a threshold.
+You have to implement your worker extending the ThreadWorker class
+Installation
-## Installation
```
npm install node-pool --save
```
-# Usage
+Usage
You can implement a worker in a simple way , extending the class ThreadWorker :
@@ -22,9 +39,10 @@ const { ThreadWorker } = require('node-pool')
class MyWorker extends ThreadWorker {
constructor () {
super((data) => {
- // this will be executed in the worker thread, the data will be received by using the execute method
+ // this will be executed in the worker thread,
+ // the data will be received by using the execute method
return { ok: 1 }
- })
+ }, { maxInactiveTime: 1000 * 60})
}
}
module.exports = new MyWorker()
@@ -34,7 +52,7 @@ Instantiate your pool based on your needed :
```js
'use strict'
-const { FixedThreadPool } = require('node-pool')
+const { FixedThreadPool, DynamicThreadPool } = require('node-pool')
// a fixed thread pool
const pool = new FixedThreadPool(15,
@@ -55,14 +73,47 @@ pool.execute({}).then(res => {
See examples folder for more details.
-## Node versions
+Node versions
+
You can use node version 10.x with --experimental-worker flag, or you can use an higher version (i.e 12.x)
-## API
+API
+
+### `pool = new FixedThreadPool(numThreads, filePath, opts)`
+`numThreads` (mandatory) Num of threads for this worker pool
+`filePath` (mandatory) Path to a file with a worker implementation
+`opts` (optional) An object with these properties :
+- `errorHandler` - A function that will listen for error event on each worker thread
+- `onlineHandler` - A function that will listen for online event on each worker thread
+- `exitHandler` - A function that will listen for exit event on each worker thread
+- `maxTasks` - This is just to avoid not useful warnings message, is used to set maxListeners on event emitters ( workers are event emitters)
+
+### `pool = new DynamicThreadPool(min, max, filePath, opts)`
+`min` (mandatory) Same as FixedThreadPool numThreads , this number of threads will be always active
+`max` (mandatory) Max number of workers that this pool can contain, the new created threads will die after a threshold ( default is 1 minute , you can override it in your worker implementation).
+`filePath` (mandatory) Same as FixedThreadPool
+`opts` (optional) Same as FixedThreadPool
+
+### `pool.execute(data)`
+Execute method is available on both pool implementations ( return type : Promise):
+`data` (mandatory) An object that you want to pass to your worker implementation
+
+### `pool.destroy()`
+Destroy method is available on both pool implementations.
+This method will call the terminate method on each worker.
+
+
+### `class YourWorker extends ThreadWorker`
+`fn` (mandatory) The function that you want to execute on the worker thread
+`opts` (optional) An object with these properties :
+- `maxInactiveTime` - Max time to wait tasks to work on ( in ms) , after this period the new worker threads will die.
+
+Contribute
+
+See guidelines [CONTRIBUTING](./.github/CONTRIBUTING.md)
-TODO
-## License
+License
[MIT](https://github.com/pioardi/node-pool/blob/master/LICENSE)