# Lab1: Threads

{% hint style="warning" %} <mark style="color:red;">**Code Due: Thursday 04/02 11:59 pm**</mark>

<mark style="color:red;">**Design Doc Due: Sunday 04/05 11:59 pm**</mark>
{% endhint %}

**In this assignment, we give you a minimally functional thread system.** Your job is to **extend the functionality of this system to gain a better understanding of synchronization problems.**

* You will be working primarily in the `threads/` directory for this assignment, with some work in the `devices/` directory on the side.
* Compilation should be done in the `threads/` directory.

Before you read the description of this project, you should read all the sections in [GETTING STARTED](https://github.com/PKU-OS/Pintos-gitbook/blob/master/project-description/lab1-threads/broken-reference/README.md) and [C Standards](https://pkuflyingpig.gitbook.io/pintos/appendix/coding-standards) section. You should at least skim the previous four sections in [Code Guide](https://pkuflyingpig.gitbook.io/pintos/appendix/reference-guide), especially [Synchronization](https://pkuflyingpig.gitbook.io/pintos/appendix/reference-guide/synchronization). **To complete this project you will also need to read** [**4.4BSD Scheduler**](https://pkuflyingpig.gitbook.io/pintos/appendix/4.4bsd-scheduler)**.**

**Here are the sections in this chapter:**

{% content-ref url="lab1-threads/background" %}
[background](https://pkuflyingpig.gitbook.io/pintos/project-description/lab1-threads/background)
{% endcontent-ref %}

{% content-ref url="lab1-threads/suggestions" %}
[suggestions](https://pkuflyingpig.gitbook.io/pintos/project-description/lab1-threads/suggestions)
{% endcontent-ref %}

{% content-ref url="lab1-threads/your-tasks" %}
[your-tasks](https://pkuflyingpig.gitbook.io/pintos/project-description/lab1-threads/your-tasks)
{% endcontent-ref %}

{% content-ref url="lab1-threads/faq" %}
[faq](https://pkuflyingpig.gitbook.io/pintos/project-description/lab1-threads/faq)
{% endcontent-ref %}

{% content-ref url="lab1-threads/submission" %}
[submission](https://pkuflyingpig.gitbook.io/pintos/project-description/lab1-threads/submission)
{% endcontent-ref %}


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