[Tizen] Use message port to communicate

Tizen.web/ImageClassificationOffloading/js/main.js

@@ -14,6 +14,7 @@ import {
   GetImgPath,
   loadLabelInfo,
   startHybridService,
+  startMessagePort,
 } from "./utils.js";
 
 let fHandle = null;
@@ -161,6 +162,7 @@ window.onload = async function () {
   const networkType = await getNetworkType();
   ip = await getIpAddress(networkType);
   labels = loadLabelInfo();
+  startMessagePort();
   startHybridService();
   document.getElementById("start_local").addEventListener("click", function () {
     runLocal();

Tizen.web/ImageClassificationOffloading/js/utils.js

@@ -132,3 +132,22 @@ export function startHybridService() {
     console.log("Get AppContext failed, " + e);
   }
 }
+
+export function startMessagePort() {
+  try {
+    const gLocalMessagePort =
+      tizen.messageport.requestLocalMessagePort("MESSAGE_PORT");
+    gLocalMessagePort.addMessagePortListener(function (data) {
+      for (var i = 0; i < data.length; i++) {
+        var key = data[i].key;
+        switch (key) {
+          case "command":
+            console.log("key:" + key + " / value:" + data[i].value);
+            break;
+        }
+      }
+    });
+  } catch (e) {
+    console.log("Failed to create local message port " + e.name);
+  }
+}

Tizen.web/ImageClassificationOffloadingService/inc/main.h

@@ -16,5 +16,7 @@
 #endif
 #define LOG_TAG "image_classification_offloading_service"
 
+#define REMOTE_APP_ID "EQmf4iSfpX.ImageClassificationOffloading"
+#define PORT_NAME "MESSAGE_PORT"
 
 #endif /* __IMAGECLASSIFICATIONOFFLOADINGSERVICE_H__ */

Tizen.web/ImageClassificationOffloadingService/src/main.c

@@ -7,6 +7,8 @@
  */
 
 #include "main.h"
+#include <bundle.h>
+#include <message_port.h>
 #include <service_app.h>
 #include <tizen.h>
 
@@ -44,5 +46,23 @@ int main(int argc, char *argv[]) {
 
   dlog_print(DLOG_ERROR, LOG_TAG,
              "Image classification offloading service start");
+
+  bool found;
+  int ret = message_port_check_remote_port(REMOTE_APP_ID, PORT_NAME, &found);
+
+  if (ret != MESSAGE_PORT_ERROR_NONE || !found) {
+    dlog_print(DLOG_ERROR, LOG_TAG, "Failed to check remote port");
+  }
+
+  /* Todo: Send network information to ui application */
+  bundle *b = bundle_create();
+  bundle_add_str(b, "command", "connected");
+  ret = message_port_send_message(REMOTE_APP_ID, PORT_NAME, b);
+  if (ret != MESSAGE_PORT_ERROR_NONE) {
+    dlog_print(DLOG_ERROR, LOG_TAG, "Failed to send message to %s:%s",
+               REMOTE_APP_ID, PORT_NAME);
+  }
+  bundle_free(b);
+
   return service_app_main(argc, argv, &event_callback, NULL);
 }