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messagequeue's Introduction

MessageQueue

简单的消息队列实现。

共三个版本

1. C/nonthreadsafe

C语言非线程安全版本

2. C/theadsafe

C语言线程安全版本

3. CPP

C++版本使用C11特性


由于C未提供List容器,所以C/nonthreadsafe中是一个List的实现。

以下简述实现思路

struct student_t{
    char name[100];
    int id;
}

struct node_t{
    struct node_t* prev;
    struct node_t* next;
    char payload[1];
    //
    char name[100];
    int id;
}

+----------------+
|    prev[4]     |
+----------------+
|    next[4]     |
+----------------+                +----------+
|   payload[1]   | <- overlap ->  | name[100]|
+----------------+                +----------+
                                  | id[4]    |
                                  +----------+

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