From 30cc6b5b74e76988d1dab29da6cfd61143881995 Mon Sep 17 00:00:00 2001
From: wonghiu45 <wonghiu45@163.com>
Date: Tue, 8 Aug 2023 16:40:03 +0800
Subject: [PATCH] add lock for thread pool

category: bugfix
issue: https://gitee.com/openharmony/commonlibrary_memory_utils/issues/I7RI7L

Signed-off-by: wonghiu45 <huangxiao35@huawei.com>
Change-Id: I4698e37dc23e67447e8fe5a8dbe4538ad0bcdcb1
---
 libpurgeablemem/cpp/include/purgeable_resource_manager.h | 1 +
 libpurgeablemem/cpp/src/purgeable_resource_manager.cpp   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/libpurgeablemem/cpp/include/purgeable_resource_manager.h b/libpurgeablemem/cpp/include/purgeable_resource_manager.h
index e0a6926..41a3b35 100644
--- a/libpurgeablemem/cpp/include/purgeable_resource_manager.h
+++ b/libpurgeablemem/cpp/include/purgeable_resource_manager.h
@@ -95,6 +95,7 @@ private:
     friend class PurgeableMemBase;
 
     mutable std::mutex lruCacheMutex_;
+    mutable std::mutex threadPoolMutex_;
     LruCache lruCache_;
     ThreadPool threadPool_ {THREAD_POOL_NAME};
     bool isThreadPoolStarted_ {false};
diff --git a/libpurgeablemem/cpp/src/purgeable_resource_manager.cpp b/libpurgeablemem/cpp/src/purgeable_resource_manager.cpp
index e5d6ffd..c67ce30 100644
--- a/libpurgeablemem/cpp/src/purgeable_resource_manager.cpp
+++ b/libpurgeablemem/cpp/src/purgeable_resource_manager.cpp
@@ -310,6 +310,7 @@ int32_t PurgeableResourceManager::GetLruCacheCapacityFromSysPara() const
 
 void PurgeableResourceManager::StartThreadPool()
 {
+    std::lock_guard<std::mutex> lock(threadPoolMutex_);
     if (isThreadPoolStarted_) {
         return;
     }
-- 
Gitee