[common] ll: make ll_push report success/failure

client/src/message.h

@@ -0,0 +1,66 @@
+/**
+ * Looking Glass
+ * Copyright © 2017-2025 The Looking Glass Authors
+ * https://looking-glass.io
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc., 59
+ * Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef _H_LG_MSG_
+#define _H_LG_MSG_
+
+#include <stdbool.h>
+
+typedef enum LGMsgType
+{
+  /* The LG client window size changed
+   * Note:
+   *   This message is debounced to avoid flooding the guest with resize events
+   */
+  LG_MSG_WINDOWSIZE
+}
+LGMsgType;
+
+typedef struct LGMsg
+{
+  LGMsgType type;
+  union
+  {
+    //LG_MSG_WINDOWSIZE
+    struct
+    {
+      unsigned width;
+      unsigned height;
+    }
+    windowSize;
+
+    //LG_MSG_VIDEO
+    struct
+    {
+      bool enabled;
+    }
+    video;
+  };
+}
+LGMsg;
+
+bool lgMessage_init(void);
+void lgMessage_deinit(void);
+
+void lgMessage_process(void);
+
+void lgMessage_post(const LGMsg * msg);
+
+#endif