Kernel.link - Githubissues

elliott-beach commented 6 years ago

Add the method Kernel.link(path1, path2). This creates path2 as a hard link to path1. It should:

[ ] find the inode number for the first file,
[ ] then write a directory entry for the second path which references the same index
[ ] Don't forget to increment nlink on the index node.

Tests: write a new program, ln.cc, which, given two path names, links the first to the second.

Creating a link to a directory is not allowed.

elliott-beach commented 6 years ago

What mode will the link be created in? - Probably we just copy the mode from the src file descriptor. Questions for the TA:

[ ] What is this super-long block of code in creat even doing? Understanding it is necessary because link and unlink operations exist on the same level of abstraction as create, so we will need to use create as a basic example for what to do. https://github.com/elliott-beach/project3/blob/6c7e23a2061096ff245885463943947b27e24641/Kernel.cc#L286-L358 I don't get it.

elliott-beach commented 6 years ago

woo!

elliott-beach / project3