协程池优化

routine/options.go

@@ -0,0 +1,59 @@
+package routine
+
+type options[T any] struct {
+	workers      int
+	capacity     int
+	taskFn       func(T)
+	panicHandler func(any)
+}
+
+// Option function
+type Option[T any] func(*options[T])
+
+// setOptions 设置默认值
+func setOptions[T any](opt ...Option[T]) options[T] {
+	opts := options[T]{
+		workers:  1,
+		capacity: 1,
+	}
+
+	for _, o := range opt {
+		o(&opts)
+	}
+
+	return opts
+}
+
+// WithWorkers 设置协程数
+func WithWorkers[T any](workers int) Option[T] {
+	if workers <= 0 {
+		workers = 1
+	}
+	return func(o *options[T]) {
+		o.workers = workers
+	}
+}
+
+// WithCapacity 设置任务队列容量
+func WithCapacity[T any](capacity int) Option[T] {
+	if capacity <= 0 {
+		capacity = 1
+	}
+	return func(o *options[T]) {
+		o.capacity = capacity
+	}
+}
+
+// WithTaskFn 设置任务函数
+func WithTaskFn[T any](taskFn func(T)) Option[T] {
+	return func(o *options[T]) {
+		o.taskFn = taskFn
+	}
+}
+
+// WithPanicHandler 设置panic处理函数
+func WithPanicHandler[T any](panicHandler func(any)) Option[T] {
+	return func(o *options[T]) {
+		o.panicHandler = panicHandler
+	}
+}

routine/pool.go

@@ -1,8 +1,6 @@
 package routine
 
 import (
-	"fmt"
-	"runtime/debug"
 	"sync"
 )
 
@@ -10,25 +8,30 @@ type Pool[T any] struct {
 	taskQueue    chan T
 	taskFn       func(T)
 	workers      int
+	panicHandler func(any)
 	wg           sync.WaitGroup
 }
 
-func NewPool[T any](workers, capacity int, taskFn func(T)) *Pool[T] {
+func NewPool[T any](opt ...Option[T]) *Pool[T] {
+	opts := setOptions(opt...)
 	pool := &Pool[T]{
-		taskQueue: make(chan T, capacity),
-		taskFn: func(t T) {
+		taskQueue:    make(chan T, opts.capacity),
+		panicHandler: opts.panicHandler,
+		workers:      opts.workers,
+	}
+	pool.taskFn = func(t T) {
 		defer func() {
 			// 处理协程运行中出现panic的情况
 			if r := recover(); r != nil {
-					fmt.Printf("Panic: %v\n %s", r, string(debug.Stack()))
+				if pool.panicHandler != nil {
+					pool.panicHandler(r)
+				}
 			}
 		}()
 
-			taskFn(t)
-		},
-		workers: workers,
+		opts.taskFn(t)
 	}
-	pool.wg.Add(workers)
+	pool.wg.Add(opts.workers)
 
 	return pool
 }

routine/pool_test.go

@@ -1,7 +1,9 @@
 package routine
 
 import (
+	"fmt"
 	"runtime"
+	"runtime/debug"
 	"sync/atomic"
 	"testing"
 
@@ -11,13 +13,23 @@ import (
 func TestPool(t *testing.T) {
 	num := runtime.NumCPU()
 	var sum atomic.Int32
-	pool := NewPool(num, num, func(num int32) {
+
+	task := func(num int32) {
 		if num < 0 {
 			panic("unable to handle negative numbers")
 		}
 
 		sum.Add(num)
-	})
+	}
+	handler := func(r any) {
+		fmt.Printf("Panic: %v\n %s", r, string(debug.Stack()))
+	}
+	pool := NewPool(
+		WithWorkers[int32](num),
+		WithCapacity[int32](num),
+		WithTaskFn(task),
+		WithPanicHandler[int32](handler),
+	)
 	pool.Start()
 
 	for i := int32(1000); i >= -1; i-- {