new feat(comuse): add CString

include/xspcomm/xcomuse.h

@@ -185,6 +185,30 @@ namespace xspcomm {
             return (bool (*)(XData*, XData*, uint64_t))XDataCmp;
         }
     };
+
+    class CString {
+        public:
+        std::string str;
+        CString(std::string val):str(val){}
+        CString():str(""){}
+        uint64_t CharAddress(){
+            return (uint64_t)this->str.c_str();
+        }
+        void AssignTo(char * addr){
+            addr = (char *)this->str.c_str();
+        }
+        void AssignTo(uint64_t addr){
+            return this->AssignTo((char*)addr);
+        }
+        void AssignFrom(const char * val){
+            this->str = std::string(val);
+        }
+        void AssignFrom(uint64_t val){
+            return this->AssignFrom((const char*)val);
+        }
+        std::string Get(){return this->str;}
+        void Set(std::string val){this->str = val;}
+    };
 }
 
 #endif

tests/test_python.py

@@ -136,6 +136,12 @@ def test_xdata():
     cfg2 = XSignalCFG("tests/test_signal_cfg_map.yaml")
     assert cfg.String() == cfg2.String(), "%s != %s" % (cfg.String().strip(), cfg2.String().strip())
 
+    # test cstring
+    cs1 = CString("cs1")
+    cs2 = CString("------------")
+    cs1.Set(cs2.Get())
+    assert cs1.Get() == cs2.Get()
+
 
 async def test_async():
     clk = XClock(lambda a: 0)