Function sq_ring_needs_enter [src]

Returns true if we are not using an SQ thread (thus nobody submits but us), or if IORING_SQ_NEED_WAKEUP is set and the SQ thread must be explicitly awakened. For the latter case, we set the SQ thread wakeup flag. Matches the implementation of sq_ring_needs_enter() in liburing.

Prototype

pub fn sq_ring_needs_enter(self: *IoUring, flags: *u32) bool

Parameters

self: *IoUringflags: *u32

Source

  pub fn sq_ring_needs_enter(self: *IoUring, flags: *u32) bool {
    assert(flags.* == 0);
    if ((self.flags & linux.IORING_SETUP_SQPOLL) == 0) return true;
    if ((@atomicLoad(u32, self.sq.flags, .unordered) & linux.IORING_SQ_NEED_WAKEUP) != 0) {
        flags.* |= linux.IORING_ENTER_SQ_WAKEUP;
        return true;
    }
    return false;
}  