Struct SpawnOptions 

pub struct SpawnOptions<'a> { /* private fields */ }

Implementations

impl<'a> SpawnOptions<'a>

pub fn new(filename: &'a CStr, argv: &'a CStrArray, envp: &'a CStrArray) -> Self

pub unsafe fn pre_exec( &mut self, f: unsafe fn(data: usize) -> bool, data: usize, ) -> &mut Self

Sets a function to be called with the data argument before execve is called. This allows the caller to modify the environment for the new process.

Safety

The function must not introduce undefined behavior.

The function must not break library guarantees. This could happen since it will be executed in another process which shares some things with the current process like the virtual memory, but not others like the file descriptor table, the threads, etc.

pub fn clone_flags(&mut self, flags: u32) -> &mut Self

Sets additional clone flags to use when spawning the process. This can be used to spawn the process in a new namespace for example.

pub fn spawn(&self) -> Result<pid_t>

Tries to spawn the new process and returns its PID on success.

pub fn spawn_and_wait(&self) -> Result<i32>

Spawns a new process, waits for it to die and returns its status code.