Group context

examples/group_context/go.mod

@@ -0,0 +1,9 @@
+module github.com/alitto/pond/examples/group_context
+
+go 1.18
+
+require (
+	github.com/alitto/pond v1.7.1
+)
+
+replace github.com/alitto/pond => ../../

examples/group_context/group_context.go

@@ -0,0 +1,46 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+
+	"github.com/alitto/pond"
+)
+
+func main() {
+
+	// Create a worker pool
+	pool := pond.New(10, 1000)
+	defer pool.StopAndWait()
+
+	// Create a task group associated to a context
+	group, ctx := pool.GroupContext(context.Background())
+
+	var urls = []string{
+		"https://www.golang.org/",
+		"https://www.google.com/",
+		"https://www.github.com/",
+	}
+
+	// Submit tasks to fetch each URL
+	for _, url := range urls {
+		url := url
+		group.Submit(func() error {
+			req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
+			resp, err := http.DefaultClient.Do(req)
+			if err == nil {
+				resp.Body.Close()
+			}
+			return err
+		})
+	}
+
+	// Wait for all HTTP requests to complete.
+	err := group.Wait()
+	if err != nil {
+		fmt.Printf("Failed to fetch URLs: %v", err)
+	} else {
+		fmt.Println("Successfully fetched all URLs")
+	}
+}