Трансфер на дрцгой комп

hw05_parallel_execution/go.mod

@@ -1,4 +1,4 @@
-module github.com/fixme_my_friend/hw05_parallel_execution
+module github.com/tiburon-777/HW_OTUS/hw05_parallel_execution
 
 go 1.14
 

hw05_parallel_execution/run.go

@@ -2,6 +2,8 @@ package hw05_parallel_execution //nolint:golint,stylecheck
 
 import (
 	"errors"
+	"log"
+	"sync"
 )
 
 var ErrErrorsLimitExceeded = errors.New("errors limit exceeded")
@@ -10,6 +12,24 @@ type Task func() error
 
 // Run starts tasks in N goroutines and stops its work when receiving M errors from tasks
 func Run(tasks []Task, N int, M int) error {
-	// Place your code here
+	log.Println("Tasks:", len(tasks), "| Goroutines:", N, "| Errors:", M)
+	errs := 0
+	for i := 0; i < len(tasks); i = i + N {
+		wg := sync.WaitGroup{}
+		for g := 1; g <= N && i+g < len(tasks); g++ {
+			wg.Add(1)
+			go func(rt Task, i int, g int, errs *int) {
+				if err := rt; err != nil {
+					*errs++
+				}
+				wg.Done()
+			}(tasks[i+g], i, g, &errs)
+		}
+		wg.Wait()
+		if errs > M {
+			log.Println("Produced", errs, "errors of", M)
+			return ErrErrorsLimitExceeded
+		}
+	}
 	return nil
 }