Developing a Multithreaded Kernel From Scratch: Part Two - Module Two

Daniel McCarthy

106 Lessons 19 Hours

4. Implementing FREAD in userland

This course is the continuation of Part 2 Module 1, where we continued building the 32-bit PeachOS kernel, into a fully functioning 64-bit multitasking ope...

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Introduction

1. Introduction 4m

Filesystem And Memory Management

1. Implementing FOPEN in userland 29m 1. Source Code View 2. Implementing FCLOSE in userland 9m 3. Implementing FREAD in userland 9m 4. Improving our memory managment system for processes - part 1 25m 5. Improving our memory managment system for processes - part 2 22m 6. Compiling and testing FREAD 6m 7. Implementing FSEEK in userland 9m 8. Implementing FSTAT in userland 12m 9. Moving the task paging descriptor into the process 6m 10. Making the process list use vectors 10m 11. Making the process_realloc function 15m

Windowing System

1. Creating some essential graphics functions 36m 2. The Window System In Detail 15m 3. Building the Window header files 13m 4. Building the Window source files part 1 16m 5. Building the Window source files part 2 19m 6. Building the Window source files part 3 13m 7. Building the Window source files part 4 8m 8. Building the Window source files part 5 11m

CPU

1. Understanding CPUID 3m 2. Implementing CPUID in our kernel 5m 3. Understanding the TSC Frequency And Delay Functionality 4m 4. Using the TSC Frequency And Implementing Delay Functionality 17m 5. Using the TSC Frequency And Implementing Delay Functionality Part 2 10m 6. Using the TSC Frequency And Implementing Delay Functionality Part 3 1m

Mouse and Graphics

1. Understanding the mouse 10m 2. Building mouse abstraction 21m 3. Building mouse abstraction - Part 2 10m 4. Implementing window_position_set function 12m 5. Implementing graphics_info_recalculate 4m 6. Implementing window_redraw and testing our windows 3m 7. Implementing the PS2 mouse 19m 8. Implementing the PS2 mouse - Part 2 17m 9. Implementing the PS2 mouse - Part 3 3m 10. Implementing the PS2 mouse - Part 4 , Testing the mouse 2m 11. Implementing click handlers for graphics 20m 12. Implementing move handlers for graphics 4m 13. Registering mouse event listeners in windows and implementing the click handler 7m 14. Implementing the window_click function 2m 15. Implementing the window helper functions 11m 16. Pushing events for focus and unfocus 2m 17. Dealing with title bar clicks 6m 18. Moving windows with the mouse 7m

Windowing System - Stage two

1. Fixing compile errors with the graphics and windows 3m 2. Fixing common runtime errors identified in graphical and window system 5m 3. Testing our windows 1m 4. The translation layer for graphics and windows in user space 11m 5. Creating userland pointers 12m 6. Creating windows from userspace - part one 15m 7. Creating windows from userspace - part two 8m 8. Creating windows from userspace - part three 6m 9. Creating windows from userspace - part four 3m 10. Diverting stdout to a window 11m 11. The link between kernel window events and userspace 7m 12. Creating the window event functionality for processes - part one 12m 13. Creating the window event functionality for processes - part two 6m 14. Creating the window event functionality for processes - part three 17m 15. Creating the isr80h function to get events in user space 5m 16. Calling the isr80h get event function from userspace 7m 17. Accessing the graphics info of a window from userspace 14m 18. Getting the pixels buffer of a graphics info entity to use in userspace 18m 19. Creating ability for user space to redraw windows 3m 20. Compiling our changes 3m 21. Testing the drawing of pixels in our userspace application 8m 22. Binding the window redraw to ISR80H 1m 23. Creating relative graphics from userspace 12m 24. Redrawing window regions in userspace 5m 25. Updating window properties from userspace 10m 26. Implementing keyboard events and handlers 15m 27. Implementing the window keyboard listener 7m

PCI And Implementation

1. Understanding PCI 30m 2. Implementing the PCI header files 15m 3. Implementing the PCI source files part one 26m 4. Implementing the PCI source files part two 23m 5. Implementing the PCI source files part three 25m 6. Implementing the PCI source files part four 3m

Disk Driver Improvements

1. Upgraded disk abstraction and disk drivers 4m 2. Attaching hardware disk to the disk structure and basic driver metadata 6m 3. Creating the disk driver header file 8m 4. Creating the disk driver source file 12m 5. Rewriting our disk code to work with the disk driver abstraction 7m 6. Implementing the pata disk driver header file 3m 7. Implementing the pata disk driver source file 25m 8. Finalizing and testing our pata driver 3m

NVMe SSD Disk Driver

1. All About NVMe 23m 2. Implementing the NVME header file 11m 3. Implementing the NVME source file - part one 30m 4. Implementing the NVME source file - part two 27m 5. Implementing the NVME source file - part three 18m 6. Implementing the NVME source file - part four compile and testing 7m

Task sleeping and keyboard events

1. Fixing the keyboard events on userspace 1m 2. Implementing ability for tasks to sleep 7m 3. Implementing ability for tasks to sleep in userspace 12m 4. Implementing ability for tasks to sleep in userspace part two 1m

Small optimizations

1. Rewriting the makefiles 4m 2. Fixing process realloc bug 1m 3. Calling int 0x80 in fclose 1m

Disk Streamer Cache

1. Implementing the disk stream cache header files 15m 2. Implementing the disk stream cache source files - part one 12m 3. Implementing the disk stream cache source files - part two 19m 4. Implementing the disk stream cache source files - part three 3m 5. Implementing the disk stream cache source files - part four 1m

Finishing up

1. Installing dependency libraries for our userspace and running the calculator 8m 2. Explaining how to use the GUI SDK 22m 28. Rules for contributing 5m

Developing a Multithreaded Kernel From Scratch: Part Two - Module Two

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4. Implementing FREAD in userland

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Daniel McCarthy