Function parse_proc_entry 

pub fn parse_proc_entry(pid: u32) -> Option<ProcessInfo>

Parse /proc/{pid}/status and /proc/{pid}/cmdline into a ProcessInfo.

The cmd field is populated from /proc/{pid}/cmdline (full command line with arguments), falling back to the Name: field from /proc/{pid}/status (truncated to 15 chars) for kernel threads where cmdline is empty.

Returns None if the process doesn’t exist or the status file can’t be read.

Internal Usage

This function is used internally by:

• super::ops::snapshot to populate the store
• super::ops::resolve as a fallback
• super::ops::handle_event for Exec events
• super::ops::build_chain_links for chain lookups
• super::ops::find_by_cmd and super::ops::find_by_user for fallback