Event driven engine, further work.

luprex/core/cpp/drivenengine.cpp

@@ -43,7 +43,7 @@ Channel *DrivenEngine::get_stdio_channel() {
     return stdio_channel_.get();
 }
 
-std::unique_ptr<util::LuaSource> DrivenEngine::get_lua_source() {
+util::LuaSourcePtr DrivenEngine::get_lua_source() {
     return std::move(lua_source_);
 }
 
@@ -68,14 +68,6 @@ void DrivenEngine::drv_logmode_none() {
     // NOT IMPLEMENTED YET, but it's okay as a stub.
 }
 
-void DrivenEngine::drv_invoke_engine_init() {
-    init();
-}
-
-void DrivenEngine::drv_invoke_engine_update() {
-    update();
-}
-
 Channel *DrivenEngine::get_chid(int chid) {
     // We cache the most recently used channel.
     if (recent_channel_->chid_ != chid) {
@@ -110,7 +102,9 @@ void DrivenEngine::drv_sent_outgoing(int chid, int nbytes) {
 }
 
 void DrivenEngine::drv_recv_incoming(int chid, int nbytes, char *bytes) {
-    get_chid(chid)->sb_in_->write_bytes(bytes, nbytes);
+    if (nbytes > 0) {
+        get_chid(chid)->sb_in_->write_bytes(bytes, nbytes);
+    }
 }
 
 void DrivenEngine::drv_notify_close(int chid) {
@@ -127,11 +121,15 @@ void DrivenEngine::drv_set_clock(double t) {
     clock_ = t;
 }
 
-void DrivenEngine::drv_set_lua_source(const util::LuaSource &source) {
-    lua_source_.reset(new util::LuaSource(source));
+void DrivenEngine::drv_set_lua_source(util::LuaSourcePtr source) {
+    lua_source_ = std::move(source);
     rescan_lua_source_ = false;
 }
 
+void DrivenEngine::drv_invoke_event_update() {
+    event_update();
+}
+
 bool DrivenEngine::drv_get_rescan_lua_source() {
     return rescan_lua_source_;
 }