std::os::exec

Deprecated compatibility facade for child processes; new code uses std::process.

API details and source

The implementation source contains the complete declarations and implementation notes. The table below lists canonical Gossamer call signatures; every item name links directly to its implementation file.

Item	Canonical signature or declaration	Description
Child	type Child	Handle to a still-running child supporting wait / kill.
Pipeline	type Pipeline	Multi-stage subprocess pipeline (stdout-to-stdin chain).
Signal	type Signal	Portable signal selector (Term/Kill/Stop/Cont/Hup/Int/Usr1/Usr2/Pipe/Quit).
kill	fn kill(pid: i64) -> bool	Best-effort SIGTERM by pid; returns true on success.
kill_group	fn kill_group(pid: i64) -> bool	Send SIGTERM to the entire process group (Unix); best-effort TerminateProcess on Windows.
pipeline_run	fn pipeline_run(commands: Vec<String>) -> Result<process::Output, errors::Error>	Run a Vec of shell-tokenised commands as a stdout-to-stdin pipeline.
run	fn run(program: String, args: Vec<String>) -> Result<process::Output, errors::Error>	One-shot: runs a program with args, captures stdout/stderr, returns Result<{stdout, stderr, code}, String>.
signal	fn signal(pid: i64, signum: i64) -> bool	Send an arbitrary signal number to a pid; returns true on success.
spawn	fn spawn(program: String, args: Vec<String>) -> Result<i64, errors::Error>	Non-blocking launch; returns the child PID as Result.
spawn_piped	fn spawn_piped(program: String, args: Vec<String>) -> Result<process::Child, errors::Error>	Spawns a child with piped stdin/stdout; returns Result. The Child's write_stdin / close_stdin / read_line / read_stdout / wait / kill methods drive it interactively.
wait_timeout	fn wait_timeout(pid: i64, ms: i64) -> i64	Wait up to N ms for a pid to exit; returns exit code, -1 on timeout, -2 on error.