From db86a646f41a9db415a339c96bf69a89b9fa2cd6 Mon Sep 17 00:00:00 2001
From: kercylan98 <kercylan@gmail.com>
Date: Tue, 16 May 2023 10:09:05 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=AF=E6=8C=81=E8=8E=B7=E5=8F=96=E4=B8=80?=
 =?UTF-8?q?=E4=B8=AA?=
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---
 utils/synchronization/map.go          | 12 ++++++++++++
 utils/synchronization/map_readonly.go |  1 +
 2 files changed, 13 insertions(+)

diff --git a/utils/synchronization/map.go b/utils/synchronization/map.go
index faa0486..66ed3a0 100644
--- a/utils/synchronization/map.go
+++ b/utils/synchronization/map.go
@@ -247,6 +247,18 @@ func (slf *Map[Key, Value]) Size() int {
 	return len(slf.data)
 }
 
+// GetOne 获取一个
+func (slf *Map[Key, Value]) GetOne() (value Value) {
+	if !slf.atom {
+		slf.lock.RLock()
+		defer slf.lock.RUnlock()
+	}
+	for _, v := range slf.data {
+		return v
+	}
+	return value
+}
+
 func (slf *Map[Key, Value]) MarshalJSON() ([]byte, error) {
 	m := slf.Map()
 	return json.Marshal(m)
diff --git a/utils/synchronization/map_readonly.go b/utils/synchronization/map_readonly.go
index e6ce868..2a9181d 100644
--- a/utils/synchronization/map_readonly.go
+++ b/utils/synchronization/map_readonly.go
@@ -14,4 +14,5 @@ type MapReadonly[Key comparable, Value any] interface {
 	Slice() []Value
 	Map() map[Key]Value
 	Size() int
+	GetOne() (value Value)
 }