fn cancel_inner_ctx()

in crates/libs/core/src/sync/channel.rs [56:71]

• 11 lines of code
• 3 McCabe index (conditional complexity)

    fn cancel_inner_ctx(&mut self) -> crate::WinResult<()> {
        if let Some(ctx) = &self.ctx {
            if let Err(e) = unsafe { ctx.Cancel() } {
                // fail to cancel inner operation.
                return Err(e);
            } else {
                // clear the sf ctx to avoid cancel twice.
                self.ctx.take();
            }
        } else {
            // The inner ctx can be empty after we already cancelled the inner ctx.
            // This can happen because we cancel during polling, and polling can
            // happen many times.
        }
        Ok(())
    }