first commit for chrg

rt-thread/components/dfs/dfs_v2/filesystems/mqueue/dfs_mqueue.h

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-07-04     zhkag        first Version
+ */
+
+#ifndef __DFS_MQUEUE_H__
+#define __DFS_MQUEUE_H__
+
+#include <rtthread.h>
+
+struct mqueue_file {
+    char name[RT_NAME_MAX]; /* file name */
+    rt_uint16_t msg_size;   /**< message size of each message */
+    rt_uint16_t max_msgs;   /**< max number of messages */
+    rt_list_t list;
+    rt_uint8_t *data; /* file date ptr */
+    rt_size_t size;   /* file size */
+};
+
+struct mqueue_file *dfs_mqueue_lookup(const char *path, rt_size_t *size);
+void dfs_mqueue_insert_after(rt_list_t *n);
+
+#endif