update qcloud sdk
1. iot-hub sdk update to 3.2.0 2. iot-explorer update to 3.1.1
This commit is contained in:
daishengdong
460
components/connectivity/qcloud-iot-hub-sdk/3rdparty/include/lite-list.h
vendored
Normal file
460
components/connectivity/qcloud-iot-hub-sdk/3rdparty/include/lite-list.h
vendored
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@@ -0,0 +1,460 @@
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/*
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* Tencent is pleased to support the open source community by making IoT Hub available.
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* Copyright (C) 2018-2020 THL A29 Limited, a Tencent company. All rights reserved.
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* Licensed under the MIT License (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://opensource.org/licenses/MIT
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* Unless required by applicable law or agreed to in writing, software distributed under the License is
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* distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#ifndef _LINUX_LIST_H
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#define _LINUX_LIST_H
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#define inline __inline
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typedef struct list_head list_head_t;
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struct list_head {
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struct list_head *next, *prev;
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};
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/*
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* Simple doubly linked list implementation.
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*
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* Some of the internal functions ("__xxx") are useful when
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* manipulating whole lists rather than single entries, as
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* sometimes we already know the next/prev entries and we can
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* generate better code by using them directly rather than
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* using the generic single-entry routines.
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*/
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#define LIST_HEAD_INIT(name) \
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{ \
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&(name), &(name) \
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}
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#define LIST_HEAD(name) struct list_head name = LIST_HEAD_INIT(name)
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static inline void INIT_LIST_HEAD(struct list_head *list)
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{
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list->next = list;
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list->prev = list;
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}
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/*
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* Insert a new_ptr entry between two known consecutive entries.
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*
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* This is only for internal list manipulation where we know
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* the prev/next entries already!
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*/
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static inline void __list_add(struct list_head *new_ptr, struct list_head *prev, struct list_head *next)
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{
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next->prev = new_ptr;
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new_ptr->next = next;
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new_ptr->prev = prev;
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prev->next = new_ptr;
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}
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/**
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* list_add - add a new_ptr entry
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* @new_ptr: new_ptr entry to be added
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* @head: list head to add it after
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*
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* Insert a new_ptr entry after the specified head.
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* This is good for implementing stacks.
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*/
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static inline void list_add(struct list_head *new_ptr, struct list_head *head)
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{
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__list_add(new_ptr, head, head->next);
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}
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/**
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* list_add_tail - add a new_ptr entry
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* @new_ptr: new_ptr entry to be added
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* @head: list head to add it before
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*
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* Insert a new_ptr entry before the specified head.
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* This is useful for implementing queues.
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*/
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static inline void list_add_tail(struct list_head *new_ptr, struct list_head *head)
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{
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__list_add(new_ptr, head->prev, head);
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}
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/*
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* Delete a list entry by making the prev/next entries
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* point to each other.
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*
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* This is only for internal list manipulation where we know
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* the prev/next entries already!
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*/
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static inline void __list_del(struct list_head *prev, struct list_head *next)
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{
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next->prev = prev;
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prev->next = next;
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}
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/**
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* list_del - deletes entry from list.
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* @entry: the element to delete from the list.
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* Note: list_empty() on entry does not return true after this, the entry is
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* in an undefined state.
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*/
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static inline void __list_del_entry(struct list_head *entry)
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{
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__list_del(entry->prev, entry->next);
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}
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static inline void list_del(struct list_head *entry)
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{
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__list_del(entry->prev, entry->next);
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}
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/**
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* list_replace - replace old entry by new_ptr one
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* @old : the element to be replaced
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* @new_ptr : the new_ptr element to insert
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*
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* If @old was empty, it will be overwritten.
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*/
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static inline void list_replace(struct list_head *old, struct list_head *new_ptr)
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{
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new_ptr->next = old->next;
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new_ptr->next->prev = new_ptr;
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new_ptr->prev = old->prev;
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new_ptr->prev->next = new_ptr;
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}
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static inline void list_replace_init(struct list_head *old, struct list_head *new_ptr)
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{
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list_replace(old, new_ptr);
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INIT_LIST_HEAD(old);
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}
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/**
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* list_del_init - deletes entry from list and reinitialize it.
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* @entry: the element to delete from the list.
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*/
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static inline void list_del_init(struct list_head *entry)
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{
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__list_del_entry(entry);
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INIT_LIST_HEAD(entry);
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}
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/**
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* list_move - delete from one list and add as another's head
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* @list: the entry to move
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* @head: the head that will precede our entry
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*/
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static inline void list_move(struct list_head *list, struct list_head *head)
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{
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__list_del_entry(list);
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list_add(list, head);
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}
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/**
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* list_move_tail - delete from one list and add as another's tail
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* @list: the entry to move
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* @head: the head that will follow our entry
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*/
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static inline void list_move_tail(struct list_head *list, struct list_head *head)
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{
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__list_del_entry(list);
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list_add_tail(list, head);
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}
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/**
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* list_is_last - tests whether @list is the last entry in list @head
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* @list: the entry to test
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* @head: the head of the list
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*/
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static inline int list_is_last(const struct list_head *list, const struct list_head *head)
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{
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return list->next == head;
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}
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/**
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* list_empty - tests whether a list is empty
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* @head: the list to test.
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*/
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static inline int list_empty(const struct list_head *head)
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{
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return head->next == head;
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}
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/**
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* list_empty_careful - tests whether a list is empty and not being modified
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* @head: the list to test
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*
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* Description:
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* tests whether a list is empty _and_ checks that no other CPU might be
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* in the process of modifying either member (next or prev)
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*
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* NOTE: using list_empty_careful() without synchronization
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* can only be safe if the only activity that can happen
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* to the list entry is list_del_init(). Eg. it cannot be used
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* if another CPU could re-list_add() it.
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*/
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static inline int list_empty_careful(const struct list_head *head)
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{
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struct list_head *next = head->next;
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return (next == head) && (next == head->prev);
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}
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/**
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* list_rotate_left - rotate the list to the left
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* @head: the head of the list
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*/
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static inline void list_rotate_left(struct list_head *head)
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{
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struct list_head *first;
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if (!list_empty(head)) {
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first = head->next;
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list_move_tail(first, head);
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}
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}
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/**
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* list_is_singular - tests whether a list has just one entry.
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* @head: the list to test.
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*/
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static inline int list_is_singular(const struct list_head *head)
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{
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return !list_empty(head) && (head->next == head->prev);
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}
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/**
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* list_entry - get the struct for this entry
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* @ptr: the &struct list_head pointer.
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* @type: the type of the struct this is embedded in.
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* @member: the name of the list_struct within the struct.
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*/
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#define list_entry(ptr, type, member) container_of(ptr, type, member)
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/**
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* list_first_entry - get the first element from a list
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* @ptr: the list head to take the element from.
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* @type: the type of the struct this is embedded in.
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* @member: the name of the list_struct within the struct.
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*
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* Note, that list is expected to be not empty.
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*/
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#define list_first_entry(ptr, type, member) list_entry((ptr)->next, type, member)
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/**
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* list_last_entry - get the last element from a list
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* @ptr: the list head to take the element from.
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* @type: the type of the struct this is embedded in.
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* @member: the name of the list_struct within the struct.
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*
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* Note, that list is expected to be not empty.
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*/
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#define list_last_entry(ptr, type, member) list_entry((ptr)->prev, type, member)
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/**
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* list_first_entry_or_null - get the first element from a list
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* @ptr: the list head to take the element from.
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* @type: the type of the struct this is embedded in.
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* @member: the name of the list_struct within the struct.
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*
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* Note that if the list is empty, it returns NULL.
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*/
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#define list_first_entry_or_null(ptr, type, member) (!list_empty(ptr) ? list_first_entry(ptr, type, member) : NULL)
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/**
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* list_next_entry - get the next element in list
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* @pos: the type * to cursor
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* @member: the name of the list_struct within the struct.
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*/
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#define list_next_entry(pos, member, type) list_entry((pos)->member.next, type, member)
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/**
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* list_prev_entry - get the prev element in list
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* @pos: the type * to cursor
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* @member: the name of the list_struct within the struct.
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*/
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#define list_prev_entry(pos, member, type) list_entry((pos)->member.prev, type, member)
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/**
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* list_for_each - iterate over a list
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* @pos: the &struct list_head to use as a loop cursor.
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* @head: the head for your list.
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*/
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#define list_for_each(pos, head) for (pos = (head)->next; pos != (head); pos = pos->next)
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/**
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* __list_for_each - iterate over a list
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* @pos: the &struct list_head to use as a loop cursor.
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* @head: the head for your list.
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*
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* This variant doesn't differ from list_for_each() any more.
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* We don't do prefetching in either case.
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*/
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#define __list_for_each(pos, head) for (pos = (head)->next; pos != (head); pos = pos->next)
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/**
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* list_for_each_prev - iterate over a list backwards
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* @pos: the &struct list_head to use as a loop cursor.
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* @head: the head for your list.
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*/
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#define list_for_each_prev(pos, head) for (pos = (head)->prev; pos != (head); pos = pos->prev)
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/**
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* list_for_each_safe - iterate over a list safe against removal of list entry
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* @pos: the &struct list_head to use as a loop cursor.
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* @n: another &struct list_head to use as temporary storage
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* @head: the head for your list.
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*/
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#define list_for_each_safe(pos, n, head) for (pos = (head)->next, n = pos->next; pos != (head); pos = n, n = pos->next)
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/**
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* list_for_each_prev_safe - iterate over a list backwards safe against removal of list entry
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* @pos: the &struct list_head to use as a loop cursor.
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* @n: another &struct list_head to use as temporary storage
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* @head: the head for your list.
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*/
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#define list_for_each_prev_safe(pos, n, head) \
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for (pos = (head)->prev, n = pos->prev; pos != (head); pos = n, n = pos->prev)
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/**
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* list_for_each_entry - iterate over list of given type
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* @pos: the type * to use as a loop cursor.
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* @head: the head for your list.
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* @member: the name of the list_struct within the struct.
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*/
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#define list_for_each_entry(pos, head, member, type) \
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for (pos = list_entry((head)->next, type, member); &pos->member != (head); \
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pos = list_entry(pos->member.next, type, member))
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||||
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/**
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* list_for_each_entry_reverse - iterate backwards over list of given type.
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* @pos: the type * to use as a loop cursor.
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||||
* @head: the head for your list.
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* @member: the name of the list_struct within the struct.
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*/
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#define list_for_each_entry_reverse(pos, head, member, type) \
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for (pos = list_entry((head)->prev, type, member); &pos->member != (head); \
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pos = list_entry(pos->member.prev, type, member))
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||||
|
||||
/**
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||||
* list_prepare_entry - prepare a pos entry for use in list_for_each_entry_continue()
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||||
* @pos: the type * to use as a start point
|
||||
* @head: the head of the list
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||||
* @member: the name of the list_struct within the struct.
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||||
*
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||||
* Prepares a pos entry for use as a start point in list_for_each_entry_continue().
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||||
*/
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#define list_prepare_entry(pos, head, member, type) ((pos) ?: list_entry(head, type, member))
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||||
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||||
/**
|
||||
* list_for_each_entry_continue - continue iteration over list of given type
|
||||
* @pos: the type * to use as a loop cursor.
|
||||
* @head: the head for your list.
|
||||
* @member: the name of the list_struct within the struct.
|
||||
*
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||||
* Continue to iterate over list of given type, continuing after
|
||||
* the current position.
|
||||
*/
|
||||
#define list_for_each_entry_continue(pos, head, member, type) \
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||||
for (pos = list_entry(pos->member.next, type, member); &pos->member != (head); \
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||||
pos = list_entry(pos->member.next, type, member))
|
||||
|
||||
/**
|
||||
* list_for_each_entry_continue_reverse - iterate backwards from the given point
|
||||
* @pos: the type * to use as a loop cursor.
|
||||
* @head: the head for your list.
|
||||
* @member: the name of the list_struct within the struct.
|
||||
*
|
||||
* Start to iterate over list of given type backwards, continuing after
|
||||
* the current position.
|
||||
*/
|
||||
#define list_for_each_entry_continue_reverse(pos, head, member, type) \
|
||||
for (pos = list_entry(pos->member.prev, type, member); &pos->member != (head); \
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||||
pos = list_entry(pos->member.prev, type, member))
|
||||
|
||||
/**
|
||||
* list_for_each_entry_from - iterate over list of given type from the current point
|
||||
* @pos: the type * to use as a loop cursor.
|
||||
* @head: the head for your list.
|
||||
* @member: the name of the list_struct within the struct.
|
||||
*
|
||||
* Iterate over list of given type, continuing from current position.
|
||||
*/
|
||||
#define list_for_each_entry_from(pos, head, member, type) \
|
||||
for (; &pos->member != (head); pos = list_entry(pos->member.next, type, member))
|
||||
|
||||
/**
|
||||
* list_for_each_entry_safe - iterate over list of given type safe against removal of list entry
|
||||
* @pos: the type * to use as a loop cursor.
|
||||
* @n: another type * to use as temporary storage
|
||||
* @head: the head for your list.
|
||||
* @member: the name of the list_struct within the struct.
|
||||
*/
|
||||
#define list_for_each_entry_safe(pos, n, head, member, type) \
|
||||
for (pos = list_entry((head)->next, type, member), n = list_entry(pos->member.next, type, member); \
|
||||
&pos->member != (head); pos = n, n = list_entry(n->member.next, type, member))
|
||||
|
||||
/**
|
||||
* list_for_each_entry_safe_continue - continue list iteration safe against removal
|
||||
* @pos: the type * to use as a loop cursor.
|
||||
* @n: another type * to use as temporary storage
|
||||
* @head: the head for your list.
|
||||
* @member: the name of the list_struct within the struct.
|
||||
*
|
||||
* Iterate over list of given type, continuing after current point,
|
||||
* safe against removal of list entry.
|
||||
*/
|
||||
#define list_for_each_entry_safe_continue(pos, n, head, member, type) \
|
||||
for (pos = list_entry(pos->member.next, type, member), n = list_entry(pos->member.next, type, member); \
|
||||
&pos->member != (head); pos = n, n = list_entry(n->member.next, type, member))
|
||||
|
||||
/**
|
||||
* list_for_each_entry_safe_from - iterate over list from current point safe against removal
|
||||
* @pos: the type * to use as a loop cursor.
|
||||
* @n: another type * to use as temporary storage
|
||||
* @head: the head for your list.
|
||||
* @member: the name of the list_struct within the struct.
|
||||
*
|
||||
* Iterate over list of given type from current point, safe against
|
||||
* removal of list entry.
|
||||
*/
|
||||
#define list_for_each_entry_safe_from(pos, n, head, member, type) \
|
||||
for (n = list_entry(pos->member.next, type, member); &pos->member != (head); \
|
||||
pos = n, n = list_entry(n->member.next, type, member))
|
||||
|
||||
/**
|
||||
* list_for_each_entry_safe_reverse - iterate backwards over list safe against removal
|
||||
* @pos: the type * to use as a loop cursor.
|
||||
* @n: another type * to use as temporary storage
|
||||
* @head: the head for your list.
|
||||
* @member: the name of the list_struct within the struct.
|
||||
*
|
||||
* Iterate backwards over list of given type, safe against removal
|
||||
* of list entry.
|
||||
*/
|
||||
#define list_for_each_entry_safe_reverse(pos, n, head, member, type) \
|
||||
for (pos = list_entry((head)->prev, type, member), n = list_entry(pos->member.prev, type, member); \
|
||||
&pos->member != (head); pos = n, n = list_entry(n->member.prev, type, member))
|
||||
|
||||
/**
|
||||
* list_safe_reset_next - reset a stale list_for_each_entry_safe loop
|
||||
* @pos: the loop cursor used in the list_for_each_entry_safe loop
|
||||
* @n: temporary storage used in list_for_each_entry_safe
|
||||
* @member: the name of the list_struct within the struct.
|
||||
*
|
||||
* list_safe_reset_next is not safe to use in general if the list may be
|
||||
* modified concurrently (eg. the lock is dropped in the loop body). An
|
||||
* exception to this is if the cursor element (pos) is pinned in the list,
|
||||
* and list_safe_reset_next is called after re-taking the lock and before
|
||||
* completing the current iteration of the loop body.
|
||||
*/
|
||||
#define list_safe_reset_next(pos, n, member, type) n = list_entry(pos->member.next, type, member)
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user