Module sys 

Platform abstraction layer.

Isolates all OS-specific system calls (fork, exec, pipe, dup2, open, close, wait) behind a clean interface so the rest of frost-exec remains portable across Unix variants and architectures.

Structs

Pipe

A pipe pair as raw file descriptors.

Enums

ChildStatus

Outcome of waiting for a child process.

ForkOutcome

Result of a fork operation.

Functions

close

Close a file descriptor.

dup2

Duplicate src onto dst.

dup2_and_close

Duplicate src onto dst, then close src if they differ.

exec

Replace the current process image with a new program.

fork^⚠

Fork the current process.

open

Open a file, returning a raw file descriptor.

pipe

Create a pipe, returning raw file descriptors.

try_wait_pid

Wait for a child process (non-blocking).

wait_pid

Wait for a specific child process (blocking).