Operating Systems 2017F: Assignment 2
This assignment is not yet finalized.
Please submit the answers to the following questions via CULearn by 11:55 PM on Thursday, October 26, 2017. There are ?? points in ?? questions.
Submit your answers as a single text file named "<username>-comp3000-assign2.txt" (where username is your MyCarletonOne username). The first four lines of this file should be "COMP 3000 Assignment 2", your name, student number, and the date of submission. You may wish to format your answers in Markdown to improve their appearance.
No other formats will be accepted. Submitting in another format will likely result in your assignment not being graded and you receiving no marks for this assignment. In particular do not submit an MS Word or OpenOffice file as your answers document!
Don't forget to include what outside resources you used to complete each of your answers, including other students, man pages, and web resources. You do not need to list help from the instructor, TA, or information found in the textbook.
Questions
- [2] How could you modify 3000test.c so it can report on whether two device files are equal without actually accessing the underlying devices? Specify the changes you would make to 3000test.c rather than doing this from scratch.
- [2] Does the MAP_SHARED flag on line 60 of 3000test.c (inside the call to mmap) make a significant difference in its execution? Specifically, what happens when you remove it or changed it to MAP_PRIVATE? Why?
- [1] Why does a different version of stat(), lstat(), exist that treats symbolic links differently? Why isn't a different version needed for hard links?