Operating System代写：CS164 Malloc代写留学生R课程设计、R实验作业代做

代写操作系统作业，根据tutorial，实现malloc函数。InstructionsCheck out the malloc tutorial from Dan Luu on how these functions can be implemented at: http://danluu.com/malloc-tutorial/For your convenience, it is also appended in this file. The tutorial implements working versions of malloc, free, calloc and realloc and you can use that code as-is.Write a driver function (i.e., main function) to demonstrate the usage and efficiency of these functions. The main() should have at least 10 calls each to malloc, calloc and realloc and at least 5 calls to free. Set up the function to print out the heap start/end addresses and also print out the memory leaks in your code.Your main task is to implement the exercises mentioned in the tutorial. These are also shown below:(a) Convert the single linked list implementation of the tutorial into a doubly linked list version; make changes to all the functions accordingly to work with the doubly linked list.(b) malloc is supposed to return a pointer “which is suitably aligned for any built-in type”.Does our malloc do that? If so, why? If not, fix the alignment. Note that “any built-in type” is basically up to 8 bytes for C.(c) The implemented malloc is really wasteful if we try to re-use an existing block and we don’t need all of the space. Implement a function that will split up blocks so that they use the minimum amount of space necessary(d) After doing (c), if we call malloc and free lots of times with random sizes, we’ll end up with a bunch of small blocks that can only be re-used when we ask for small amounts of space. Implement a mechanism to merge adjacent free blocks together so that any consecutive free blocks will get merged into a single block.(e) The current implementation implements a first fit algorithm for finding free blocks. Implement a best fit algorithm instead.Repeat Step (2) with this implementation to demonstrate usage of the functions and memory leakage.Your code must use the set-up mentioned in this tutorial. Other online resources can be consulted but NOT copied. The tutorial mentions some other implementations for splitting/merging blocks that can only be consulted but not copied本团队核心人员组成主要包括BAT一线工程师，精通德英语！我们主要业务范围是代做编程大作业、课程设计等等。我们的方向领域：window编程 数值算法 AI人工智能 金融统计 计量分析 大数据 网络编程 WEB编程 通讯编程 游戏编程多媒体linux 外挂编程 程序API图像处理 嵌入式/单片机 数据库编程 控制台 进程与线程 网络安全 汇编语言 硬件编程 软件设计 工程标准规等。其中代写编程、代写程序、代写留学生程序作业语言或工具包括但不限于以下范围:C/C++/C#代写Java代写IT代写Python代写辅导编程作业Matlab代写Haskell代写Processing代写Linux环境搭建Rust代写Data Structure Assginment 数据结构代写MIPS代写Machine Learning 作业 代写Oracle/SQL/PostgreSQL/Pig 数据库代写/代做/辅导Web开发、网站开发、网站作业ASP.NET网站开发Finance Insurace Statistics统计、回归、迭代Prolog代写Computer Computational method代做因为专业，所以值得信赖。如有需要，请加QQ：99515681 或邮箱：[email protected] 微信：codehelp QQ：99515681 或邮箱：[email protected] 微信：codehelp