Struct ExecutionParameters 

pub struct ExecutionParameters {
    pub process_group_policy: ProcessGroupPolicy,
    pub suppress_errexit: bool,
    /* private fields */
}

Parameters for execution.

Fields

process_group_policy: ProcessGroupPolicy

Policy for how to manage spawned external processes.

suppress_errexit: bool

Whether errexit (exit on error) behavior should be suppressed in this execution context. Defaults to false.

Implementations

impl ExecutionParameters

pub fn stdin(&self, shell: &Shell<impl ShellExtensions>) -> impl Read + 'static

Returns the standard input file; usable with write! et al.

Arguments

• shell - The shell context.

pub fn try_stdin(&self, shell: &Shell<impl ShellExtensions>) -> Option<OpenFile>

Tries to retrieve the standard input file. Returns None if not set.

Arguments

• shell - The shell context.

pub fn stdout( &self, shell: &Shell<impl ShellExtensions>, ) -> impl Write + 'static

Returns the standard output file; usable with write! et al. In the event that no such file is available, returns a valid implementation of std::io::Write that fails all I/O requests.

Arguments

• shell - The shell context.

pub fn try_stdout( &self, shell: &Shell<impl ShellExtensions>, ) -> Option<OpenFile>

Tries to retrieve the standard output file. Returns None if not set.

Arguments

• shell - The shell context.

pub fn stderr( &self, shell: &Shell<impl ShellExtensions>, ) -> impl Write + 'static

Returns the standard error file; usable with write! et al. In the event that no such file is available, returns a valid implementation of std::io::Write that fails all I/O requests.

Arguments

• shell - The shell context.

pub fn try_stderr( &self, shell: &Shell<impl ShellExtensions>, ) -> Option<OpenFile>

Tries to retrieve the standard error file. Returns None if not set.

Arguments

• shell - The shell context.

pub fn try_fd( &self, shell: &Shell<impl ShellExtensions>, fd: ShellFd, ) -> Option<OpenFile>

Returns the file descriptor with the given number. Returns None if the file descriptor is not open.

Arguments

• shell - The shell context.
• fd - The file descriptor number to retrieve.

pub fn set_fd(&mut self, fd: ShellFd, file: OpenFile)

Sets the given file descriptor to the provided open file.

Arguments

• fd - The file descriptor number to set.
• file - The open file to set.

pub fn iter_fds( &self, shell: &Shell<impl ShellExtensions>, ) -> impl Iterator<Item = (ShellFd, OpenFile)>

Iterates over all open file descriptors in this context.

Arguments

• shell - The shell context.

Trait Implementations

impl Clone for ExecutionParameters

fn clone(&self) -> ExecutionParameters

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for ExecutionParameters

fn default() -> ExecutionParameters

Returns the “default value” for a type.