busychild | pstree mod that prints other helpful information

busychild is a Rust library. busychild has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Busychild is a pstree like utility with some added functionality built on. Busychild is aimed at getting a better understanding of applications which create numerous child processes. Busychild should allow users to peek into a portion of the IPC being used by the target process and highlight shared file descriptors (sockets (not datagram afaik), pipes) with other processes. Hopefully the code isn't completely opaque and users are able to modify it to suit their needs. There is a lot of room left for added functionality as I've only chosen to highlight a small subset of the information available about a given process. There are many unexplored process aspects which lend themselves well to being highlighted by the program, such as: shared mapped files, CPU utilization, virtual memory size, process state, etc. These are all available through the wonderful procfs Crate. Busychild is in a very early stage, please report any bugs! The code could use a heavy dose of refactoring, but it seems to be in a working state. I've hardcoded a constant in the code in order to render the process start times as a UTC timestamp correctly, this constant is the _SC_CLK_TCK which, when used in conjuction with the process' start time and the OS boot time, can give you a UTC timestamp. This constant is set to 100 on my machine, please check yours in order to get the right result. Tested on Ubuntu 18.04: 5.4.0-42-generic #46~18.04.1-Ubuntu SMP Fri Jul 10 07:21:24 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux.