Set environment (LANG, LC_MESSAGE, LC_ALL) before using ICU API.

[platform/core/dotnet/launcher.git] / NativeLauncher / launcher / dotnet / dotnet_launcher.cc

diff --git a/NativeLauncher/launcher/dotnet/dotnet_launcher.cc b/NativeLauncher/launcher/dotnet/dotnet_launcher.cc
index 890e5b7..650d5b7 100644 (file)
--- a/NativeLauncher/launcher/dotnet/dotnet_launcher.cc
+++ b/NativeLauncher/launcher/dotnet/dotnet_launcher.cc
@@ -245,6 +245,35 @@ static void initEnvForSpecialFolder()
        }
 }
 
+// terminate candidate process when language changed
+// icu related data (CultureInfo, etc) should be recreated.
+static void langChangedCB(keynode_t *key, void* data)
+{
+       _INFO("terminiate candidate process to update language.");
+       exit(0);
+}
+
+static void setLang()
+{
+       char* lang = vconf_get_str(VCONFKEY_LANGSET);
+       if (!lang) {
+               _ERR("Fail to get language from vconf");
+               return;
+       }
+
+       // In order to operate ICU (used for globalization) normally, the following
+       // environment variables must be set before using ICU API.
+       // When running Applicaiton, the following environment variables are set by AppFW.
+       // But when preloading the dll in the candidate process, the following environment variables are not set
+       // As a result, CultureInfo is incorrectly generated and malfunctions.
+       // For example, uloc_getDefault() returns en_US_POSIX, CultureInfo is set to invariant mode.
+       setenv("LANG", const_cast<char *>(lang), 1);
+       setenv("LC_MESSAGES", const_cast<char *>(lang), 1);
+       setenv("LC_ALL", const_cast<char *>(lang), 1);
+
+       free(lang);
+}
+
 void CoreRuntime::preloadTypes()
 {
        const static std::string initDllPath = concatPath(__FRAMEWORK_DIR, "Tizen.Init.dll");
@@ -288,6 +317,9 @@ CoreRuntime::CoreRuntime(const char* mode) :
        // Intiailize ecore first (signal handlers, etc.) before runtime init.
        ecore_init();
 
+       // set language environment to support ICU
+       setLang();
+
        char *env = nullptr;
        env = getenv("CORECLR_ENABLE_PROFILING");
        if (env != nullptr && !strcmp(env, "1")) {
@@ -407,6 +439,10 @@ int CoreRuntime::initialize(bool standalone, bool useDlog, const char* corerunRo
 
        if (!standalone) {
                pluginPreload();
+
+               // terminate candidate process if language is changed.
+               // CurrentCulture created for preloaded dlls should be updated.
+               vconf_notify_key_changed(VCONFKEY_LANGSET, langChangedCB, NULL);
        }
 
        // Set environment for System.Environment.SpecialFolder
@@ -586,6 +622,8 @@ int CoreRuntime::launch(const char* appId, const char* root, const char* path, i
                free(localDataPath);
        }
 
+       vconf_ignore_key_changed(VCONFKEY_LANGSET, langChangedCB);
+
        pluginBeforeExecute();
 
        _INFO("execute assembly : %s", path);