⚡ Optimize hotkey service

internal/common/hotkey/darwin/mainthread.go

@@ -0,0 +1,68 @@
+//go:build darwin
+
+package darwin
+
+/*
+#cgo CFLAGS: -x objective-c
+#cgo LDFLAGS: -framework Cocoa
+#import <Cocoa/Cocoa.h>
+#import <Dispatch/Dispatch.h>
+
+extern void os_main(void);
+extern void wakeupMainThread(void);
+static bool isMainThread() {
+	return [NSThread isMainThread];
+}
+*/
+import "C"
+import (
+	"os"
+	"runtime"
+)
+
+func init() {
+	runtime.LockOSThread()
+}
+
+// Call calls f on the main thread and blocks until f finishes.
+func Call(f func()) {
+	if C.isMainThread() {
+		f()
+		return
+	}
+	done := make(chan struct{})
+	go func() {
+		mainFuncs <- func() {
+			f()
+			close(done)
+		}
+		C.wakeupMainThread()
+	}()
+	<-done
+}
+
+// Init initializes the functionality of running arbitrary subsequent functions be called on the main system thread.
+//
+// Init must be called in the main.main function.
+func Init(f func()) {
+	go func() {
+		f()
+		os.Exit(0)
+	}()
+
+	C.os_main()
+}
+
+var mainFuncs = make(chan func(), 1)
+
+//export dispatchMainFuncs
+func dispatchMainFuncs() {
+	for {
+		select {
+		case f := <-mainFuncs:
+			f()
+		default:
+			return
+		}
+	}
+}