Merge pull request #29 from catmullet/update-readme

Update README.md (WIP)

Author: ebarti

README.md

@@ -17,10 +17,10 @@ go get github.com/catmullet/go-workers
 
 ### Add the import to your project
 giving an alias helps since go-workers doesn't exactly follow conventions.    
-_(If your using a JetBrains IDE it should automatically give it an alias)_
+_(If you're using a JetBrains IDE it should automatically give it an alias)_
 ```go
 import (
-    worker "github.com/catmullet/go-workers"
+    workers "github.com/catmullet/go-workers"
 )
 ```
 ### Create a new worker <img src="https://raw.githubusercontent.com/catmullet/go-workers/assets/constworker.png" alt="worker" width="35"/>
@@ -29,25 +29,25 @@ _(Method chaining can be performed on this method like calling .Work() immediate
 ```go
 type MyWorker struct {}
 
-func NewMyWorker() *MyWorker {
+func NewMyWorker() Worker {
 	return &MyWorker{}
 }
 
-func (my *MyWorker) Work(w *goworker.Worker, in interface{}) error {
+func (my *MyWorker) Work(in interface{}, out chan<- interface{}) error {
 	// work iteration here
 }
 
-worker := worker.NewWorker(ctx, NewMyWorker(), numberOfWorkers)
+runner := workers.NewRunner(ctx, NewMyWorker(), numberOfWorkers)
 ```
 ### Send work to worker
 Send accepts an interface.  So send it anything you want.
 ```go
-worker.Send("Hello World")
+runner.Send("Hello World")
 ```
-### Close and wait for the worker to finish and handle errors
+### Wait for the worker to finish and handle errors
 Any error that bubbles up from your worker functions will return here.
 ```go
-if err := worker.Close(); err != nil {
+if err := runner.Wait(); err != nil {
     //Handle error
 }
 ```
@@ -57,48 +57,49 @@ if err := worker.Close(); err != nil {
 
 By using the InFrom method you can tell `workerTwo` to accept output from `workerOne`
 ```go
-workerOne := worker.NewWorker(ctx, NewMyWorker(), 100).Work()
-workerTwo := worker.NewWorker(ctx, NewMyWorkerTwo(), 100).InFrom(workerOne).Work()
+runnerOne := workers.NewRunner(ctx, NewMyWorker(), 100).Work()
+runnerTwo := workers.NewRunner(ctx, NewMyWorkerTwo(), 100).InFrom(workerOne).Work()
 ```
 ### Accepting output from multiple workers
 It is possible to accept output from more than one worker but it is up to you to determine what is coming from which worker.  (They will send on the same channel.)
 ```go
-workerOne := worker.NewWorker(ctx, NewMyWorker(), 100).Work()
-workerTwo := worker.NewWorker(ctx, NewMyWorkerTwo(), 100).Work()
-workerThree := worker.NewWorker(ctx, NewMyWorkerThree(), 100).InFrom(workerOne, workerTwo).Work()
+runnerOne := workers.NewRunner(ctx, NewMyWorker(), 100).Work()
+runnerTwo := workers.NewRunner(ctx, NewMyWorkerTwo(), 100).Work()
+runnerThree := workers.NewRunner(ctx, NewMyWorkerThree(), 100).InFrom(workerOne, workerTwo).Work()
 ```
 
 ## Passing Fields To Workers
 ### Adding Values
 Fields can be passed via the workers object. Be sure as with any concurrency in Golang that your variables are concurrent safe.  Most often the golang documentation will state the package or parts of it are concurrent safe.  If it does not state so there is a good chance it isn't.  Use the sync package to lock and unlock for writes on unsafe variables.  (It is good practice NOT to defer in the work function.)
 
 <img src="https://raw.githubusercontent.com/catmullet/go-workers/assets/constworker2.png" alt="worker" width="35"/> **ONLY** use the `Send()` method to get data into your worker. It is not shared memory unlike the worker objects values.
+
 ```go
 type MyWorker struct {
 	message string
 }
 
-func NewMyWorker(message string) *MyWorker {
+func NewMyWorker(message string) Worker {
 	return &MyWorker{message}
 }
 
-func (my *MyWorker) Work(w *goworker.Worker, in interface{}) error {
+func (my *MyWorker) Work(in interface{}, out chan<- interface{}) error {
 	fmt.Println(my.message)
 }
 
-worker := worker.NewWorker(ctx, NewMyWorker(), 100).Work()
+runner := workers.NewRunner(ctx, NewMyWorker(), 100).Work()
 ```
 
 ### Setting Timeouts or Deadlines
 If your workers needs to stop at a deadline or you just need to have a timeout use the SetTimeout or SetDeadline methods. (These must be in place before setting the workers off to work.)
 ```go
  // Setting a timeout of 2 seconds
- timeoutWorker.SetTimeout(2 * time.Second)
+ timeoutRunner.SetTimeout(2 * time.Second)
 
  // Setting a deadline of 4 hours from now
- deadlineWorker.SetDeadline(time.Now().Add(4 * time.Hour))
+ deadlineRunner.SetDeadline(time.Now().Add(4 * time.Hour))
 
-func workerFunction(w *worker.Worker, in interface{}) error {
+func workerFunction(in interface{}, out chan<- interface{} error {
 	fmt.Println(in)
 	time.Sleep(1 * time.Second)
 }
@@ -109,9 +110,9 @@ func workerFunction(w *worker.Worker, in interface{}) error {
 ### Buffered Writer
 If you want to write out to a file or just stdout you can use SetWriterOut(writer io.Writer).  The worker will have the following methods available
 ```go
-worker.Println()
-worker.Printf()
-worker.Print()
+runner.Println()
+runner.Printf()
+runner.Print()
 ```
 The workers use a buffered writer for output and can be up to 3 times faster than the fmt package.  Just be mindful it won't write out to the console as quickly as an unbuffered writer.  It will sync and eventually flush everything at the end, making it ideal for writing out to a file.