Add ability to configure pool growth strategy

examples/fixed_size/fixed_size.go

@@ -0,0 +1,25 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/alitto/pond"
+)
+
+func main() {
+
+	// Create an unbuffered (blocking) pool with a fixed
+	// number of workers
+	pool := pond.New(10, 0, pond.MinWorkers(10))
+
+	// Submit 1000 tasks
+	for i := 0; i < 1000; i++ {
+		n := i
+		pool.Submit(func() {
+			fmt.Printf("Running task #%d\n", n)
+		})
+	}
+
+	// Stop the pool and wait for all submitted tasks to complete
+	pool.StopAndWait()
+}

examples/fixed_size/go.mod

@@ -0,0 +1,9 @@
+module github.com/alitto/pond/examples/fixed_size
+
+go 1.14
+
+require (
+	github.com/alitto/pond v1.3.0
+)
+
+replace github.com/alitto/pond => ../../