feat: insert core entry before launching flutter

src/core_main.rs

@@ -0,0 +1,13 @@
+/// Main entry of the RustDesk Core.
+/// Return true if the app should continue running with UI(possibly Flutter), false if the app should exit.
+pub fn core_main() -> bool {
+    let args = std::env::args().collect::<Vec<_>>();
+    // TODO: implement core_main()
+    if args.len() > 1 {
+        if args[1] == "--cm" {
+            // For test purpose only, this should stop any new window from popping up when a new connection is established.
+            return false;
+        }
+    }
+    true
+}

src/flutter_ffi.rs

@@ -52,6 +52,13 @@ fn initialize(app_dir: &str) {
     }
 }
 
+/// FFI for rustdesk core's main entry.
+/// Return true if the app should continue running with UI(possibly Flutter), false if the app should exit.
+#[no_mangle]
+pub extern "C" fn rustdesk_core_main() -> bool {
+    crate::core_main::core_main()
+}
+
 pub fn start_event_stream(s: StreamSink<String>) -> ResultType<()> {
     let _ = flutter::EVENT_STREAM.write().unwrap().insert(s);
     Ok(())

src/lib.rs

@@ -28,6 +28,11 @@ pub mod flutter;
 #[cfg(any(target_os = "android", target_os = "ios", feature = "flutter"))]
 pub mod flutter_ffi;
 use common::*;
+#[cfg(all(
+    not(any(target_os = "android", target_os = "ios")),
+    feature = "flutter"
+))]
+pub mod core_main;
 #[cfg(feature = "cli")]
 pub mod cli;
 #[cfg(all(windows, feature = "hbbs"))]