First commit XiUOS

applications/user_api/posix_support/include/mqueue.h

@@ -0,0 +1,57 @@
+/*
+ * 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:    msgqueue.h
+* @brief:   the function definition of posix msg queue
+* @version: 1.0
+* @author:  AIIT XUOS Lab
+* @date:    2020/4/20
+*
+*/
+
+#ifndef MQUEUE_H
+#define MQUEUE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#include "../../switch_api/user_api.h"
+#include <time.h>
+
+#define DEFAULT_MQUEUE_SIZE  (10 * 1024)
+#define DEFAULT_MAX_MSG_SIZE (1024)
+
+typedef int mqd_t;
+
+struct mq_attr {
+    long mq_flags;    /* message queue flags */
+    long mq_maxmsg;   /* maximum number of messages */
+    long mq_msgsize;  /* maximum message size */
+    long mq_curmsgs;  /* number of messages currently queued */
+};
+
+mqd_t   mq_open(const char *name, int oflag, ...);
+int     mq_close(mqd_t mqdes);
+ssize_t mq_receive(mqd_t mqdes, char *msg_ptr, size_t msg_len, unsigned *msg_prio);
+int     mq_send(mqd_t mqdes, const char *msg_ptr, size_t msg_len, unsigned msg_prio);
+int     mq_setattr(mqd_t mqdes, const struct mq_attr *mqstat, struct mq_attr *omqstat);
+int     mq_getattr(mqd_t mqdes, struct mq_attr *mqstat);
+ssize_t mq_timedreceive(mqd_t mqdes, char *msg_ptr, size_t msg_len, unsigned *msg_prio, const struct timespec *abs_timeout);
+int     mq_timedsend(mqd_t mqdes, const char *msg_ptr, size_t msg_len, unsigned msg_prio, const struct timespec *abs_timeout);
+int     mq_unlink(const char *name);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif