import RT-Thread@9217865c without bsp, libcpu and components/net

components/vbus/prio_queue.h

@@ -0,0 +1,54 @@
+/*
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2013-11-04     Grissiom     add comment
+ */
+
+#ifndef __PRIO_QUEUE_H__
+#define __PRIO_QUEUE_H__
+
+#include <rtthread.h>
+
+#define RT_PRIO_QUEUE_PRIO_MAX  32
+
+struct rt_prio_queue_item;
+
+struct rt_prio_queue {
+    rt_uint32_t bitmap;
+    struct rt_prio_queue_item *head[RT_PRIO_QUEUE_PRIO_MAX];
+    struct rt_prio_queue_item *tail[RT_PRIO_QUEUE_PRIO_MAX];
+    /* push thread suspend on the mempool, not queue */
+    rt_list_t suspended_pop_list;
+    rt_size_t item_sz;
+
+    struct rt_mempool pool;
+};
+
+rt_err_t rt_prio_queue_init(struct rt_prio_queue *que,
+                            const char *name,
+                            void *buf,
+                            rt_size_t bufsz,
+                            rt_size_t itemsz);
+void rt_prio_queue_detach(struct rt_prio_queue *que);
+
+rt_err_t rt_prio_queue_push(struct rt_prio_queue *que,
+                            rt_uint8_t prio,
+                            void *data,
+                            rt_int32_t timeout);
+rt_err_t rt_prio_queue_pop(struct rt_prio_queue *que,
+                           void *data,
+                           rt_int32_t timeout);
+#ifdef RT_USING_HEAP
+struct rt_prio_queue* rt_prio_queue_create(const char *name,
+                                           rt_size_t item_nr,
+                                           rt_size_t item_sz);
+void rt_prio_queue_delete(struct rt_prio_queue *que);
+#endif
+
+void rt_prio_queue_dump(struct rt_prio_queue *que);
+
+#endif /* end of include guard: __PRIO_QUEUE_H__ */