util: Replace boost::signals2 with std::function

1 files changed, 7 insertions, 16 deletions

diff --git a/src/util.h b/src/util.h
index 23b2a787e4..e93489c1ed 100644
--- a/src/util.h
+++ b/src/util.h
@@ -19,8 +19,8 @@
 #include <logging.h>
 #include <sync.h>
 #include <tinyformat.h>
-#include <utiltime.h>
 #include <utilmemory.h>
+#include <utiltime.h>
 
 #include <atomic>
 #include <exception>
@@ -31,33 +31,24 @@
 #include <unordered_set>
 #include <vector>
 
-#include <boost/signals2/signal.hpp>
 #include <boost/thread/condition_variable.hpp> // for boost::thread_interrupted
 
 // Application startup time (used for uptime calculation)
 int64_t GetStartupTime();
 
-/** Signals for translation. */
-class CTranslationInterface
-{
-public:
-    /** Translate a message to the native language of the user. */
-    boost::signals2::signal<std::string (const char* psz)> Translate;
-};
-
-extern CTranslationInterface translationInterface;
-
 extern const char * const BITCOIN_CONF_FILENAME;
 extern const char * const BITCOIN_PID_FILENAME;
 
+/** Translate a message to the native language of the user. */
+const extern std::function<std::string(const char*)> G_TRANSLATION_FUN;
+
 /**
- * Translation function: Call Translate signal on UI interface, which returns a boost::optional result.
- * If no translation slot is registered, nothing is returned, and simply return the input.
+ * Translation function.
+ * If no translation function is set, simply return the input.
  */
 inline std::string _(const char* psz)
 {
-    boost::optional<std::string> rv = translationInterface.Translate(psz);
-    return rv ? (*rv) : psz;
+    return G_TRANSLATION_FUN ? (G_TRANSLATION_FUN)(psz) : psz;
 }
 
 void SetupEnvironment();