[−][src]Function tarantool_module::coio::coio_call
pub fn coio_call<F, T>(callback: &mut F, arg: T) -> isize where
F: FnMut(Box<T>) -> i32,
Create new eio task with specified function and arguments. Yield and wait until the task is complete or a timeout occurs.
This function doesn't throw exceptions to avoid double error checking: in most cases it's also necessary to check the return value of the called function and perform necessary actions. If func sets errno, the errno is preserved across the call.
Returns:
-1
anderrno = ENOMEM
if failed to create a task- the function return (errno is preserved).
struct FuncArgs {} fn func(args: FuncArgs) -> i32 {} if coio_call(func, FuncArgs{}) == -1 { // handle errors. }