First commit XiUOS

kernel/include/xs_mutex.h

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+/*
+ * 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:    xs_mutex.h
+* @brief:   function declaration and structure defintion of mutex
+* @version: 1.0
+* @author:  AIIT XUOS Lab
+* @date:    2020/3/10
+*
+*/
+
+#ifndef XS_MUTEX_H
+#define XS_MUTEX_H
+
+#include <xsconfig.h>
+#include <xs_kdbg.h>
+#include <xs_base.h>
+#include <xs_klist.h>
+#include <xs_id.h>
+
+#ifdef KERNEL_MUTEX
+
+struct Mutex {
+    struct IdNode          id;
+    uint16                 val;
+    uint8                  recursive_cnt;
+    uint8                  origin_prio;
+    struct TaskDescriptor  *holder;
+    DoubleLinklistType     pend_list;
+    DoubleLinklistType     link;
+};
+
+typedef struct {
+    int32 (*MutexCreate)();
+    void (*MutexDelete)(struct Mutex *mutex);
+    int32 (*MutexObtain)(struct Mutex *mutex, int32 wait_time);
+    int32 (*MutexAbandon)(struct Mutex *mutex);
+} MutexDoneType;
+
+int32 KMutexCreate();
+void KMutexDelete(int32 id);
+int32 KMutexObtain(int32 id, int32 wait_time);
+int32 KMutexAbandon(int32 id);
+#endif
+
+#endif