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  • 23:56, 27 September 2022 Soma talk contribs created page Operating Systems 2022F Lecture 6 (Created page with "==Video== Video from the lecture given on September 27, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/os-2022f/lectures/comp3000-2022f-lec06-20220927.m4v video] * [https://homeostasis.scs.carleton.ca/~soma/os-2022f/lectures/comp3000-2022f-lec06-20220927.cc.vtt auto-generated captions] Video is also available through Brightspace (Resources->Zoom meeting->Cloud Recordings tab) ==Notes== <pre> Lecture 6 --------- - validator not working: read the...")
  • 12:21, 26 September 2022 Soma talk contribs created page GDB quick start (Created page with "==Getting Started== * Type "gdb <program>" to debug a program binary * Compile with -g (to get debugging symbols) (keep -O) to allow gdb to have more info about the program when debugging. But it will work without -g. * At the prompt type "run" to run it under gdb's control. * To debug an already running program, type "attach <PID>" * By default gdb can only attach to child processes. To allow attaching to processes that aren't gdb's children, do the following: sudo...")
  • 22:08, 22 September 2022 Soma talk contribs created page Operating Systems 2022F Lecture 5 (Created page with "==Video== Video from the lecture given on September 22, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/os-2022f/lectures/comp3000-2022f-lec05-20220922.m4v video] * [https://homeostasis.scs.carleton.ca/~soma/os-2022f/lectures/comp3000-2022f-lec05-20220922.cc.vtt auto-generated captions] Video is also available through Brightspace (Resources->Zoom meeting->Cloud Recordings tab) ==Notes== <pre> Lecture 5 --------- Today, Tutorial 3, along with some...")
  • 17:27, 20 September 2022 Soma talk contribs created page Operating Systems 2022F Lecture 4 (Created page with "==Video== ==Notes== <pre> Lecture 4 --------- * Assignment 1 has been released, due Sept. 28th - based on T1 & T2, if you've done them it should be straightforward - please use the template and validate after completing the assignment - we use scripts to split up the assignment by question so they can be graded all at once - collaborators should be at the top; resources (e.g., web pages) should be listed with the question it helped with (remembe...")
  • 10:33, 17 September 2022 Soma talk contribs created page Operating Systems 2022F: Assignment 1 (Created page with "'''This Assignment is still being developed.''' <syntaxhighlight lang="c" line> 3000menu.c: #include <stdio.h> #include <unistd.h> #include <sys/types.h> #include <sys/wait.h> #include <stdlib.h> extern char **environ; char *menu[] = { "/usr/bin/ls", "/usr/bin/whoami", "/usr/bin/top", "QUIT", NULL }; int QUIT = 3; void run_program(int choice) { pid_t pid; int status; printf("Running %s\n"...")
  • 11:23, 15 September 2022 Soma talk contribs created page Operating Systems 2022F: Tutorial 4 (Created page with "In this tutorial you will learn about how accounts and logging in work through exploring 3000userlogin and ssh. ==Logging in to a UNIX system== In order to log in to a UNIX system (Linux or otherwise), the following steps must occur (potentially not in this order). # The user must authenticate themselves, proving their identity and that they are allowed to access the system. By default this is done through a username and password. # A new process, U, should be create...")
  • 11:12, 15 September 2022 Soma talk contribs created page Operating Systems 2022F: Tutorial 3 (Created page with "In this tutorial you will be experimenting with and extending [https://homeostasis.scs.carleton.ca/~soma/os-2019f/code/3000shell.c 3000shell.c] (listed below). '''Make sure you use the original code from 3000shell for each question.''' ==Getting Started== You should download [https://homeostasis.scs.carleton.ca/~soma/os-2019f/code/3000shell.c 3000shell.c] on your openstack instance (or a Ubuntu Linux 21.04 system or similar). Compile it using the command gcc -O -g -...")
  • 13:04, 12 September 2022 Soma talk contribs created page Operating Systems 2022F Lecture 3 (Created page with "==Textbook Readings== * [https://pages.cs.wisc.edu/~remzi/OSTEP/cpu-api.pdf 5. Process API]")
  • 13:03, 12 September 2022 Soma talk contribs created page Operating Systems 2022F Lecture 2 (Created page with "==Textbook Readings== * [https://pages.cs.wisc.edu/~remzi/OSTEP/dialogue-virtualization.pdf 3. Virtualization Dialog] * [https://pages.cs.wisc.edu/~remzi/OSTEP/cpu-intro.pdf 4. Processes]")
  • 20:54, 11 September 2022 Soma talk contribs created page Operating Systems 2022F: Tutorial 2 (Created page with "In this tutorial we're going to look at how processes work at a low level: how they make system calls & library calls, how C and assembly compare, and and how memory is laid out. If you haven't already, please set up and use a VM on openstack for this work. ==Background== A process on UNIX-like systems are separated from each other: they run in their own address space - pointers can only refer to code and data in that program, not in other programs. Because programs...")
  • 21:46, 8 September 2022 Soma talk contribs created page Operating Systems 2022F Lecture 1 (Created page with "==Video== Video from the lecture given on September 8, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/os-2022f/lectures/comp3000-2022f-lec01-20220908.m4v video] * [https://homeostasis.scs.carleton.ca/~soma/os-2022f/lectures/comp3000-2022f-lec01-20220908.cc.vtt auto-generated captions] Video is also available through Brightspace (Resources->Zoom meeting->Cloud Recordings tab) ==Notes== <pre> Lecture 1 --------- Using openstack - first, run newacc...")
  • 18:06, 1 September 2022 Soma talk contribs created page Operating Systems 2022F: Tutorial 1 (Created page with "In this tutorial you will be learning the basics of command-line interaction in Linux. ==Getting Started== For this tutorial, you need to get access to a Linux or UNIX machine. We strongly suggest you use an SCS Openstack instance (see below). You'll need access to a system for the entire semester, ideally the same one. The concepts covered below are mostly part of standard UNIX/Linux tutorials. Feel free to consult one or more of them. However, remember that you...")
  • 12:07, 1 September 2022 Soma talk contribs created page Operating Systems (Fall 2022) Course Outline (Created page with "'''This course outline is still being revised.''' ==Course Information== *'''Course Number:''' COMP 3000 *'''Term:''' Fall 2022 *'''Title:''' Operating Systems *'''Institution:''' Carleton University, School of Computer Science *'''Instructor:''' [https://people.scs.carleton.ca/~soma Anil Somayaji] (anil.somayaji at carleton.ca): by appointment via Teams and Tue. and Thu. 1-2 PM via zoom (see cuLearn for link) *'''Teaching Assistants:''' (office hours via Teams chat) *...")
  • 11:57, 1 September 2022 Soma talk contribs created page Operating Systems (Fall 2022) (Created page with "Page coming soon.")
  • 14:00, 8 April 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 23 (Created page with "==Video== Video from the lecture given on April 8, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec23-20220408.m4v video] * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec23-20220408.cc.vtt auto-generated captions] Video is also available through Brightspace (Resources->Zoom Meetings (Recordings, etc.)->Cloud Recordings tab). Note that here you'll also see chat messages. ==Notes=...")
  • 19:04, 6 April 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 22 (Created page with "==Video== Video from the lecture given on April 6, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec22-20220406.m4v video] * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec22-20220406.cc.vtt auto-generated captions] Video is also available through Brightspace (Resources->Zoom Meetings (Recordings, etc.)->Cloud Recordings tab). Note that here you'll also see chat messages. ==Notes=...")
  • 13:46, 1 April 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 21 (Created page with "==Video== Video from the lecture given on April 1, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec21-20220401.m4v video] * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec21-20220401.cc.vtt auto-generated captions] Video is also available through Brightspace (Resources->Zoom Meetings (Recordings, etc.)->Cloud Recordings tab). Note that here you'll also see chat messages. ==Notes=...")
  • 15:37, 30 March 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 20 (Created page with "==Video== Video from the lecture given on March 30, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec20-20220330.m4v video] * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec20-20220330.cc.vtt auto-generated captions] Video is also available through Brightspace (Resources->Zoom Meetings (Recordings, etc.)->Cloud Recordings tab). Note that here you'll also see chat messages. ==Notes...")
  • 13:41, 28 March 2022 Soma talk contribs created page Mobile App Dev 2022W: Assignment 4 (Created page with "Please answer all of the following questions in the [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/templates/comp1601-assign4-template.txt supplied template]. Your uploaded file should be named "comp1601-assign4-<i>MCOname</i>.txt" where MCOname is your MyCarletonOne username (i.e., the username you use to login to Brightspace) and it should be a UNIX text file (LF line endings). <b>You may use [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/validators/a4-va...")
  • 16:02, 25 March 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 19 (Created page with "==Video== Video from the lecture given on March 25, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec19-20220325.m4v video] * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec19-20220325.cc.vtt auto-generated captions] Video is also available through Brightspace (Resources->Zoom Meetings (Recordings, etc.)->Cloud Recordings tab). Note that here you'll also see chat messages. ==Notes...")
  • 11:49, 25 March 2022 Lianyingzhao talk contribs created page COMP3000 Operating Systems W22: Tutorial 9 (Created page with "By the end of this tutorial, you will have a basic familiarity with the Docker platform and be able to run, operate, and customize containers, and create simple containers of your own. You will see how kernel building blocks like namespaces make containers possible. Tutorials are graded based on participation and effort ('''so no need to try to have the “correct” answers — what matters is the process'''), but you should still turn in your work. Even if you have no...")
  • 13:37, 23 March 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 18 (Created page with "==Video== Video from the lecture given on March 23, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec18-20220323.m4v video] * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec18-20220323.cc.vtt auto-generated captions] Video is also available through Brightspace (Resources->Zoom Meetings (Recordings, etc.)->Cloud Recordings tab). Note that here you'll also see chat messages. ==Notes...")
  • 13:40, 22 March 2022 Soma talk contribs created page Mobile App Dev 2022W: Tutorial 9 (Created page with "==Code== ===[https://homeostasis.scs.carleton.ca/~soma/mad-2022w/code/PicViewer2/MainActivity.kt MainActivity.kt]=== <syntaxhighlight lang="kotlin" line> package carleton.comp1601.remotepicview2 import android.os.Bundle import android.text.Editable import android.text.TextWatcher import android.view.MotionEvent import android.view.View import android.widget.EditText import android.widget.ImageView import androidx.appcompat.app.AppCompatActivity class MainActivity : A...")
  • 23:39, 18 March 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 17 (Created page with "==Video== Video from the lecture given on March 18, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec17-20220318.m4v video] * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec17-20220318.cc.vtt auto-generated captions] Video is also available through Brightspace (Resources->Zoom Meetings (Recordings, etc.)->Cloud Recordings tab). Note that here you'll also see chat messages. ==Notes...")
  • 00:35, 18 March 2022 Lianyingzhao talk contribs created page COMP3000 Operating Systems W22: Tutorial 8 (Created page with "In this tutorial, you’ll be learning about how virtual addresses are mapped to physical addresses (the address translation) and continue to use kernel modules to extract information that only the kernel has access to. In particular, the kernel module performs a 5-level page table walk to find out the physical address corresponding to a userspace virtual address. In addition to what was discussed in the class, You can also read [https://en.wikipedia.org/wiki/Intel_5-lev...")
  • 13:55, 16 March 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 16 (Created page with "==Video== Video from the lecture given on March 16, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec16-20220316.m4v video] * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec16-20220316.cc.vtt auto-generated captions] Video is also available through Brightspace (Resources->Zoom Meetings (Recordings, etc.)->Cloud Recordings tab). Note that here you'll also see chat messages. ==Notes...")
  • 12:06, 15 March 2022 Soma talk contribs created page Mobile App Dev 2022W: Assignment 3 (Created page with "'''This assignment is still being developed.''' Please answer all of the following questions in the [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/templates/comp1601-assign3-template.txt supplied template]. Your uploaded file should be named "comp1601-assign3-<i>MCOname</i>.txt" where MCOname is your MyCarletonOne username (i.e., the username you use to login to Brightspace) and it should be a UNIX text file (LF line endings). <b>You may use [https://homeostasis...")
  • 23:05, 13 March 2022 Soma talk contribs created page Mobile App Dev 2022W: Tutorial 8 (Created page with "==Code== ===[https://homeostasis.scs.carleton.ca/~soma/mad-2022w/code/DragDemo3/MainActivity.kt app/src/main/java/carleton/comp1601/dragdemo3/MainActivity.kt]=== <syntaxhighlight lang="kotlin" line> package carleton.comp1601.dragdemo3 import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.view.MotionEvent import android.view.View import kotlin.math.abs import android.widget.TextView class MainActivity : AppCompatActivity() { priva...")
  • 13:31, 12 March 2022 Lianyingzhao talk contribs created page COMP3000 Operating Systems W22: Tutorial 7 Not Using SCSOpenStack (Created page with "If you are not using our course VM for some reason, you might encounter the following problems. Although they are by no means comprehensve to solve the problems, they can in many cases and serve as pointers about where to look. ==Modules fail to build== If you see errors (not just warnings) after running <tt>make</tt> and no .ko file is produced, you may have installed a version of Ubuntu that is too minimal. But you can fix it by installing the right packages. Do the fo...")
  • 16:25, 11 March 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 15 (Created page with "==Video== ==Notes== <pre> Lecture 15 ---------- Drawable shape resources: https://developer.android.com/guide/topics/resources/drawable-resource#Shape xmlns - XML namespace - specifies what is valid for this XML file/fragment </pre>")
  • 00:43, 11 March 2022 Lianyingzhao talk contribs created page COMP3000 Operating Systems W22: Tutorial 7 (Created page with "In this tutorial you'll be learning about special files and Linux kernel modules. You’ll create several kernel modules and see how to interact with them using special files (e.g., character device) and their file operations as an interface. Tutorials are graded based on participation and effort ('''so no need to try to have the “correct” answers — what matters is the process'''), but you should still turn in your work. Even if you have no idea about certain task...")
  • 16:06, 9 March 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 14 (Created page with "==Video== Video from the lecture given on March 9, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec14-20220309.m4v video] * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec14-20220309.cc.vtt auto-generated captions] Video is also available through Brightspace (Resources->Zoom Meetings (Recordings, etc.)->Cloud Recordings tab). Note that here you'll also see chat messages. ==Notes=...")
  • 11:28, 9 March 2022 Soma talk contribs created page Mobile App Dev 2022W: Tutorial 7 (Created page with "===MainActivity.kt=== <syntaxhighlight lang="kotlin" line> package carleton.comp1601.tapdemo import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.os.PersistableBundle import android.util.Log import android.view.View import android.widget.TextView class MainActivity : AppCompatActivity() { private lateinit var myMessage: TextView private var count = 0 override fun onCreate(savedInstanceState: Bundle?) { super.onCr...")
  • 15:07, 2 March 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 13 (Created page with "==Video== Video from the lecture given on March 2, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec13-20220302.m4v vi...")
  • 00:07, 24 February 2022 Lianyingzhao talk contribs created page COMP3000 Operating Systems W22: Tutorial 6 (Created page with "In this tutorial you will be learning about two implementations of the [https://en.wikipedia.org/wiki/Producer%E2%80%93consumer_problem producer-consumer problem], a classic e...")
  • 14:23, 18 February 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 12 (Created page with "==Video== (Video is not yet uploaded.) Video from the lecture given on February 18, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/co...")
  • 14:12, 16 February 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 11 (Created page with "==Video== (Video not yet uploaded.) Video from the lecture given on February 16, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1...")
  • 23:16, 15 February 2022 Soma talk contribs created page Mobile App Dev 2022W: Tutorial 6 (Created page with "In this tutorial you will be playing with [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/code/textanalyzer-5 textanalyzer-5], which implements the same text analyzer fun...")
  • 01:57, 12 February 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 10 (Created page with "==Video== Video from the lecture given on February 11, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec10-20220211.m4...")
  • 17:03, 10 February 2022 Soma talk contribs created page Mobile App Dev 2022W: Assignment 2 (Created page with "'''This assignment is still being developed.''' ==Code== <syntaxhighlight lang="swift" line> // remotePicDemo2 // // code for Assignment 2 // COMP 1601 2022W, Carleton Unive...")
  • 17:02, 9 February 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 9 (Created page with "==Video== Video from the lecture given on February 9, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec09-20220209.m4v...")
  • 14:18, 8 February 2022 Soma talk contribs created page Mobile App Dev 2022W: Tutorial 5 (Created page with "'''This tutorial is still being developed.''' In this tutorial you will be playing with [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/code/textanalyzer-3.zip textanaly...")
  • 14:34, 4 February 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 8 (Created page with "==Video== Video from the lecture given on February 4, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec08-20220204.m4v...")
  • 17:06, 2 February 2022 Lianyingzhao talk contribs created page COMP3000 Operating Systems W22: Tutorial 5 (Created page with "In this tutorial you will be learning about files and filesystems by experimenting with and extending 3000test.c, and creating and manipulating local filesystems. '''WARNING:'...")
  • 14:44, 2 February 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 7 (Created page with "==Video== Video from the lecture given on February 2, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec07-20220202.m4v...")
  • 17:06, 1 February 2022 Soma talk contribs created page Mobile App Dev 2022W: Tutorial 4 (Created page with "In this tutorial you will be playing with [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/code/remotePicViewer/ContentView.swift remotePicViewer], a simple image viewer i...")
  • 16:07, 28 January 2022 Soma talk contribs created page Mobile App Development 2022W Lecture 6 (Created page with "==Video== Video from the lecture given on January 28, 2022 is now available: * [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/lectures/comp1601-2022w-lec06-20220128.m4v...")
  • 01:34, 27 January 2022 Lianyingzhao talk contribs created page COMP3000 Operating Systems W22: Tutorial 4 (Created page with "In this tutorial, you will learn about how user accounts and logging in work through exploring [https://people.scs.carleton.ca/~lianyingzhao/comp3000/w22/tut4/3000userlogin.c...")
  • 00:11, 27 January 2022 Lianyingzhao talk contribs created page COMP3000 Operating Systems W22: Downloading files from your Openstack VM (Created page with "You will need to transfer files between the Openstack VM and your own PC from time to time, for example, when submitting your tutorial/assignment work. As your laptop/desktop...")
  • 17:39, 26 January 2022 Soma talk contribs created page Mobile App Dev 2022W: Assignment 1 (Created page with "'''This assignment is still being developed. Please answer all of the following questions in the [https://homeostasis.scs.carleton.ca/~soma/mad-2022w/templates/assign1-templa...")
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