Struct sql_support::SqlInterruptHandle

pub struct SqlInterruptHandle {
    db_handle: InterruptHandle,
    interrupt_counter: Arc<AtomicUsize>,
}

A Sync+Send type which can be used allow someone to interrupt an operation, even if it happens while rust code (and not SQL) is executing.

Fields

db_handle: InterruptHandle

interrupt_counter: Arc<AtomicUsize>

Implementations

impl SqlInterruptHandle

pub fn new(
    db_handle: InterruptHandle,
    interrupt_counter: Arc<AtomicUsize>
) -> SqlInterruptHandle

pub fn interrupt(&self)

Trait Implementations

impl IntoFfi for SqlInterruptHandle where
    SqlInterruptHandle: Send, 

type Value = *mut SqlInterruptHandle

This type must be:

fn ffi_default() -> *mut SqlInterruptHandle

Return an 'empty' value. This is what's passed back to C in the case of an error, so it doesn't actually need to be "empty", so much as "ignorable". Note that this is also used when an empty Option<T> is returned.

fn into_ffi_value(self) -> *mut SqlInterruptHandle

Convert ourselves into a value we can pass back to C with confidence.