fix: Language resouce can't surpports muti-thread

DSView/pv/data/decoderstack.cpp

@@ -430,6 +430,7 @@ void DecoderStack::do_decode_work()
 		if (!dec->have_required_probes()) {
 			_error_message = L_S(STR_PAGE_MSG, S_ID(IDS_MSG_DECODERSTACK_DECODE_WORK_ERROR),
                              "One or more required channels have not been specified");
+            dsv_err("ERROR:%s", _error_message.toStdString().c_str());
 			return;
 		}
     }
@@ -456,6 +457,7 @@ void DecoderStack::do_decode_work()
     {   
         _error_message = L_S(STR_PAGE_MSG, S_ID(IDS_MSG_DECODERSTACK_DECODE_WORK_ERROR),
                              "One or more required channels have not been specified");
+        dsv_err("ERROR:%s", _error_message.toStdString().c_str());
         return;
     }		
 

DSView/pv/ui/langresource.cpp

@@ -86,6 +86,8 @@ const char *LangResource::get_lang_key(int lang)
 
 bool LangResource::Load(int lang)
 {
+    std::lock_guard<std::mutex> lock(_mutex);
+
     int num = sizeof(lang_id_keys) / sizeof(lang_key_item);
     const char *lan_name = get_lang_key(lang);
 
@@ -99,7 +101,7 @@ bool LangResource::Load(int lang)
 
     _query_decoders.clear();
 
-    this->Release();
+    release_self();
 
     num = sizeof(lange_page_keys) / sizeof(lang_page_item);
 
@@ -117,6 +119,12 @@ bool LangResource::Load(int lang)
 
 void LangResource::Release()
 {
+    std::lock_guard<std::mutex> lock(_mutex);
+    release_self();
+}
+
+void LangResource::release_self()
+{ 
     for (Lang_resource_page *p : _pages)
     {
         p->Clear();
@@ -194,6 +202,8 @@ const char* LangResource::get_lang_text(int page_id, const char *str_id, const c
     assert(str_id);
     assert(default_str); 
 
+    std::lock_guard<std::mutex> lock(_mutex);
+
     if (*str_id == '\0' || *default_str == '\0'){
         dsv_err("%s", "LangResource::get_lang_text(), param is empty.");
         assert(false);
@@ -245,6 +255,8 @@ const char* LangResource::get_lang_text(int page_id, const char *str_id, const c
 
 bool LangResource::is_new_decoder(const char *decoder_id)
 {
+    std::lock_guard<std::mutex> lock(_mutex);
+
     std::string key(decoder_id);
     if (_query_decoders.find(key) == _query_decoders.end()){
         _query_decoders[key] = 1;
@@ -256,6 +268,8 @@ bool LangResource::is_new_decoder(const char *decoder_id)
 
 void LangResource::reload_dynamic()
 {
+    std::lock_guard<std::mutex> lock(_mutex);
+
     for (Lang_resource_page *p : _pages)
     {
         if (p->_is_dynamic){
@@ -268,6 +282,8 @@ void LangResource::reload_dynamic()
 
 void LangResource::release_dynamic()
 {
+    std::lock_guard<std::mutex> lock(_mutex);
+
     for (Lang_resource_page *p : _pages)
     {
         if (p->_is_dynamic){

DSView/pv/ui/langresource.h

@@ -27,6 +27,7 @@
 #include <QString>
 #include <string>
 #include "string_ids.h"
+#include <mutex>
 
 struct lang_key_item
 {
@@ -92,6 +93,7 @@ public:
     }
    
 private:
+    void release_self();
     const char *get_lang_key(int lang);
 
     void load_page(Lang_resource_page &p);
@@ -103,6 +105,7 @@ private:
     Lang_resource_page    *_current_page;
     int     _cur_lang;
     std::map<std::string, int> _query_decoders;
+    mutable std::mutex  _mutex;  
 };
 
 #define S_ID(id) #id