fix: solve a refresh crash

2 files changed, 10 insertions, 1 deletions

diff --git a/src/core/model/GpgKey.cpp b/src/core/model/GpgKey.cpp
index ad88a649..4716d9cc 100644
--- a/src/core/model/GpgKey.cpp
+++ b/src/core/model/GpgKey.cpp
@@ -28,6 +28,8 @@
 
 #include "core/model/GpgKey.h"
 
+#include <mutex>
+
 GpgFrontend::GpgKey::GpgKey(gpgme_key_t &&key) : key_ref_(std::move(key)) {}
 
 GpgFrontend::GpgKey::GpgKey(GpgKey &&k) noexcept { swap(key_ref_, k.key_ref_); }
@@ -225,7 +227,10 @@ bool GpgFrontend::GpgKey::IsHasActualEncryptionCapability() const {
 }
 
 GpgFrontend::GpgKey GpgFrontend::GpgKey::Copy() const {
-  gpgme_key_ref(key_ref_.get());
+  {
+    const std::lock_guard<std::mutex> guard(gpgme_key_opera_mutex);
+    gpgme_key_ref(key_ref_.get());
+  }
   auto *_new_key_ref = key_ref_.get();
   return GpgKey(std::move(_new_key_ref));
 }
diff --git a/src/core/model/GpgKey.h b/src/core/model/GpgKey.h
index 4761f8a5..8c24ca5d 100644
--- a/src/core/model/GpgKey.h
+++ b/src/core/model/GpgKey.h
@@ -29,6 +29,8 @@
 #ifndef GPGFRONTEND_GPGKEY_H
 #define GPGFRONTEND_GPGKEY_H
 
+#include <mutex>
+
 #include "GpgSubKey.h"
 #include "GpgUID.h"
 
@@ -353,6 +355,8 @@ class GPGFRONTEND_CORE_EXPORT GpgKey {
       std::unique_ptr<struct _gpgme_key, _key_ref_deleter>;  ///<
 
   KeyRefHandler key_ref_ = nullptr;  ///<
+
+  mutable std::mutex gpgme_key_opera_mutex;  // mutex for gpgme key operations
 };
 
 }  // namespace GpgFrontend