--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ui/common/message.h Sun Nov 30 21:12:00 2025 +0100
@@ -0,0 +1,83 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2025 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef UIC_MESSAGE_H
+#define UIC_MESSAGE_H
+
+#include <cx/string.h>
+#include <cx/json.h>
+#include <cx/buffer.h>
+
+#include <pthread.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+typedef struct UiMessageHandler UiMessageHandler;
+
+typedef void(*msg_received_callback)(cxmutstr msg);
+
+struct UiMessageHandler {
+ int (*start)(UiMessageHandler *handler);
+ int (*stop)(UiMessageHandler *handler);
+ int (*send)(UiMessageHandler *handler, cxstring msg);
+
+ msg_received_callback callback;
+};
+
+typedef struct UiSimpleMessageHandler {
+ UiMessageHandler handler;
+ int in;
+ int out;
+ pthread_t in_thread;
+ pthread_t out_thread;
+ pthread_mutex_t queue_lock;
+ pthread_mutex_t avlbl_lock;
+ pthread_cond_t available;
+ CxBuffer *outbuf;
+ int stop;
+} UiSimpleMessageHandler;
+
+UiMessageHandler* uic_simple_msg_handler(int in, int out, msg_received_callback callback);
+int uic_simple_msg_handler_start(UiMessageHandler *handler);
+int uic_simple_msg_handler_stop(UiMessageHandler *handler);
+int uic_simple_msg_handler_send(UiMessageHandler *handler, cxstring msg);
+
+void* uic_simple_msg_handler_in_thread(void *data);
+void* uic_simple_msg_handler_out_thread(void *data);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* UIC_MESSAGE_H */
+