1 files changed, 13 insertions, 0 deletions

diff --git a/src/mongo.go b/src/mongo.go
index 54f9533..3a23131 100644
--- a/src/mongo.go
+++ b/src/mongo.go
@@ -2,6 +2,8 @@ package main
 
 import (
         "context"
+        "fmt"
+        "sync"
         "time"
 
         "go.mongodb.org/mongo-driver/bson"
@@ -13,6 +15,8 @@ type mongoClient struct {
         dbName, colName string
         client          *mongo.Client
         col             *mongo.Collection
+        Mutex           sync.Mutex
+        // Attention: 这把锁是否有必要？
 }
 
 func (mc *mongoClient) init(dbName, colName string) error {
@@ -89,3 +93,12 @@ func (mc *mongoClient) Disconnect() error {
         mc.colName = ""
         return nil
 }
+
+func (mc *mongoClient) GetLock() {
+        for i := 0; i < 20000; {
+                if !mc.Mutex.TryLock() {
+                        i++
+                }
+        }
+        fmt.Printf("Die...\n")
+}