add new function g.Go (#2943)

frame/g/g_func.go

@@ -17,6 +17,20 @@ import (
 	"github.com/gogf/gf/v2/util/gutil"
 )
 
+type (
+	Func        = gutil.Func        // Func is the function which contains context parameter.
+	RecoverFunc = gutil.RecoverFunc // RecoverFunc is the panic recover function which contains context parameter.
+)
+
+// Go creates a new asynchronous goroutine function with specified recover function.
+//
+// The parameter `recoverFunc` is called when any panic during executing of `goroutineFunc`.
+// If `recoverFunc` is given nil, it ignores the panic from `goroutineFunc` and no panic will
+// throw to parent goroutine.
+func Go(ctx context.Context, goroutineFunc Func, recoverFunc RecoverFunc) {
+	gutil.Go(ctx, goroutineFunc, recoverFunc)
+}
+
 // NewVar returns a gvar.Var.
 func NewVar(i interface{}, safe ...bool) *Var {
 	return gvar.New(i, safe...)

frame/g/g_z_unit_test.go

@@ -9,8 +9,10 @@ package g_test
 import (
 	"context"
 	"os"
+	"sync"
 	"testing"
 
+	"github.com/gogf/gf/v2/container/garray"
 	"github.com/gogf/gf/v2/frame/g"
 	"github.com/gogf/gf/v2/test/gtest"
 	"github.com/gogf/gf/v2/util/gutil"
@@ -114,3 +116,19 @@ func Test_Object(t *testing.T) {
 		t.AssertNE(g.Validator(), nil)
 	})
 }
+
+func Test_Go(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		var (
+			wg    = sync.WaitGroup{}
+			array = garray.NewArray(true)
+		)
+		wg.Add(1)
+		g.Go(context.Background(), func(ctx context.Context) {
+			defer wg.Done()
+			array.Append(1)
+		}, nil)
+		wg.Wait()
+		t.Assert(array.Len(), 1)
+	})
+}