Changes: invoker can launch applications even without applauncherd

src/invoker/invoker.c

@@ -182,7 +182,8 @@ static int invoker_init(enum APP_TYPE app_type)
     fd = socket(PF_UNIX, SOCK_STREAM, 0);
     if (fd < 0)
     {
-        die(1, "Failed to open invoker socket.\n");
+        warning("Failed to open invoker socket.\n");
+        return -1;
     }
 
     sun.sun_family = AF_UNIX;  //AF_FILE;
@@ -205,7 +206,8 @@ static int invoker_init(enum APP_TYPE app_type)
 
     if (connect(fd, (struct sockaddr *)&sun, sizeof(sun)) < 0)
     {
-        die(1, "Failed to initiate connect on the socket.\n");
+        warning("Failed to initiate connect on the socket.\n");
+        return -1;
     }
 
     return fd;
@@ -444,6 +446,19 @@ static int invoke(int prog_argc, char **prog_argv, char *prog_name,
 
         int fd = invoker_init(app_type);
 
+        if (fd == -1)
+        {
+            // connection with launcher is broken, try to launch application via execve
+            warning("Connection with launcher is broken\n");
+
+            execve(prog_name, prog_argv, environ);
+            perror("execve");   /* execve() only returns on error */
+            exit(EXIT_FAILURE);
+
+        }
+        else
+        {
+            // connection with launcher process is established
             invoker_send_magic(fd, magic_options);
             invoker_send_name(fd, prog_argv[0]);
             invoker_send_exec(fd, prog_name);
@@ -477,6 +492,7 @@ static int invoke(int prog_argc, char **prog_argv, char *prog_name,
 
             close(fd);
         }
+    }
     return status;
 }