pub fn update_process_states(states: &mut Vec<ProcessState>, wnohang: bool) -> bool {
    // decide whether we wait blocking or non blocking
    let wait_flags: libc::c_int = if wnohang { libc::WNOHANG } else { 0 };
    let mut all_finished = true;

    // only check those that are not finished yet!
    // Important, otherwise failures happen
    states.into_iter()
        .filter(|state| !state.finished())
        .for_each(|state| {
            let mut status_code: libc::c_int = 0;
            let status_code_ptr = &mut status_code as * mut libc::c_int;

            let res = unsafe { libc::waitpid(state.pid(), status_code_ptr, wait_flags) };

            // IDE doesn't find this functions but they exist
            // returns true if the child terminated normally
            let exited_normally: bool = unsafe { libc::WIFEXITED(status_code) };

            if wait_flags == libc::WNOHANG && res == 0 {
                all_finished = false;
                // not done yet
            } else if res == -1 {
                panic!("Failure during waitpid! {}", errno::errno());
            } else {
                if !exited_normally {
                    eprintln!("Process did not exited normally! {:#?}", state);
                }
                // exit code (only if exited_normally is true)
                let exit_code: libc::c_int = unsafe { libc::WEXITSTATUS(status_code) };

                state.finish(exit_code);
                println!("Process {} finished with status code {}", state.pid(), status_code);
            }
        });
    all_finished
}
/// Updates the process state values if the pid is done running.
/// Returns true if all pids are finished, otherwise false.
///
///  * `wnohang` if waitpid uses WNOHANG-flag. In other words: true means "wait blocking"
///     and false means "update but don't block".
Updates the process state values if the pid is done running.
Returns true if all pids are finished, otherwise false.

`wnohang` if waitpid uses WNOHANG-flag. In other words: true means "wait blocking"
and false means "update but don't block".
Updates the process state values if the pid is done running . Returns true if all pids are finished otherwise false . ` wnohang ` if waitpid uses WNOHANG - flag . In other words : true means " wait blocking " and false means " update but don ' t block " .
pub fn update_process_states(states: &mut Vec<ProcessState>, wnohang: bool) -> bool {
    // decide whether we wait blocking or non blocking
    let wait_flags: libc::c_int = if wnohang { libc::WNOHANG } else { 0 };
    let mut all_finished = true;
    // only check those that are not finished yet!
    // Important, otherwise failures happen
    states.into_iter()
        .filter(|state| !state.finished())
        .for_each(|state| {
            let mut status_code: libc::c_int = 0;
            let status_code_ptr = &mut status_code as * mut libc::c_int;
            let res = unsafe { libc::waitpid(state.pid(), status_code_ptr, wait_flags) };
            // IDE doesn't find this functions but they exist
            // returns true if the child terminated normally
            let exited_normally: bool = unsafe { libc::WIFEXITED(status_code) };
            if wait_flags == libc::WNOHANG && res == 0 {
                all_finished = false;
                // not done yet
            } else if res == -1 {
                panic!("Failure during waitpid! {}", errno::errno());
            } else {
                if !exited_normally {
                    eprintln!("Process did not exited normally! {:#?}", state);
                }
                // exit code (only if exited_normally is true)
                let exit_code: libc::c_int = unsafe { libc::WEXITSTATUS(status_code) };
                state.finish(exit_code);
                println!("Process {} finished with status code {}", state.pid(), status_code);
            }
        });
    all_finished
}
pub fn update_process_states ( states : & mut Vec < ProcessState > , wnohang : bool ) -> bool { // decide whether we wait blocking or non blocking let wait_flags : libc :: c_int = if wnohang { libc :: WNOHANG } else { 0 } ; let mut all_finished = true ; // only check those that are not finished yet! // Important, otherwise failures happen states . into_iter ( ) . filter ( | state | ! state . finished ( ) ) . for_each ( | state | { let mut status_code : libc :: c_int = 0 ; let status_code_ptr = & mut status_code as * mut libc :: c_int ; let res = unsafe { libc :: waitpid ( state . pid ( ) , status_code_ptr , wait_flags ) } ; // IDE doesn't find this functions but they exist // returns true if the child terminated normally let exited_normally : bool = unsafe { libc :: WIFEXITED ( status_code ) } ; if wait_flags == libc :: WNOHANG && res == 0 { all_finished = false ; // not done yet } else if res == - 1 { panic ! ( " " errno errno ( ) ) ; } else { if ! exited_normally { eprintln ! ( " " state ) ; } // exit code (only if exited_normally is true) let exit_code : libc :: c_int = unsafe { libc :: WEXITSTATUS ( status_code ) } ; state . finish ( exit_code ) ; println ! ( " " state pid ( ) status_code ) ; } } ) ; all_finished }
Updates the process state values if the pid is done running.
Updates the process state values if the pid is done running .
states
&mut Vec<ProcessState>
wnohang
bool
states
&mut Vec<ProcessState>
wnohang
bool