Support XiZi_AIoT

2024-01-31 10:30:34 +08:00
parent f6cf46027d
commit 494312183b
351 changed files with 46408 additions and 450091 deletions
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2020 AIIT XUOS Lab
+ * XiUOS is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *        http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+/**
+ * @file session.h
+ * @brief session header
+ * @version 3.0
+ * @author AIIT XUOS Lab
+ * @date 2023.08.25
+ */
+
+/*************************************************
+File name: session.h
+Description: session header
+Others:
+History:
+1. Date: 2023-08-28
+Author: AIIT XUOS Lab
+Modification:
+1. first version
+*************************************************/
+#pragma once
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "libserial.h"
+
+struct Session {
+    int id;
+    int capacity;
+    int head;
+    int tail;
+    void* buf;
+};
+
+__attribute__((__always_inline__)) static inline int session_used_size(struct Session* session)
+{
+    return ((session->tail + session->capacity) - session->head) % session->capacity;
+}
+
+__attribute__((__always_inline__)) static inline int session_remain_capacity(struct Session* session)
+{
+    return session->capacity - session_used_size(session);
+}
+
+__attribute__((__always_inline__)) static inline int session_forward_head(struct Session* session, int len)
+{
+    if (((session->head + len) % session->capacity) > session->tail) {
+        printf("forward head with too much size\n");
+        return -1;
+    }
+    session->head = (session->head + len) % session->capacity;
+    return session->head;
+}
+
+__attribute__((__always_inline__)) static inline int session_forward_tail(struct Session* session, int len)
+{
+    if (len > session_remain_capacity(session)) {
+        printf("forward tail with too much size\n");
+        return -1;
+    }
+    session->tail = (session->tail + len) % session->capacity;
+    return session->tail;
+}
+
+int connect_session(struct Session* session, char* path, int capacity);
+int free_session(struct Session* session);
+void* session_alloc_buf(struct Session* session, int len);
+bool session_free_buf(struct Session* session, int len);