Enum grpcio_sys::grpc_cq_polling_type
source · [−]#[repr(u32)]
pub enum grpc_cq_polling_type {
GRPC_CQ_DEFAULT_POLLING,
GRPC_CQ_NON_LISTENING,
GRPC_CQ_NON_POLLING,
}
Expand description
Completion queues internally MAY maintain a set of file descriptors in a structure called ‘pollset’. This enum specifies if a completion queue has an associated pollset and any restrictions on the type of file descriptors that can be present in the pollset.
I/O progress can only be made when grpc_completion_queue_next() or grpc_completion_queue_pluck() are called on the completion queue (unless the grpc_cq_polling_type is GRPC_CQ_NON_POLLING) and hence it is very important to actively call these APIs
Variants
GRPC_CQ_DEFAULT_POLLING
The completion queue will have an associated pollset and there is no restriction on the type of file descriptors the pollset may contain
GRPC_CQ_NON_LISTENING
Similar to GRPC_CQ_DEFAULT_POLLING except that the completion queues will not contain any ‘listening file descriptors’ (i.e file descriptors used to listen to incoming channels)
GRPC_CQ_NON_POLLING
The completion queue will not have an associated pollset. Note that grpc_completion_queue_next() or grpc_completion_queue_pluck() MUST still be called to pop events from the completion queue; it is not required to call them actively to make I/O progress
Trait Implementations
sourceimpl Clone for grpc_cq_polling_type
impl Clone for grpc_cq_polling_type
sourcefn clone(&self) -> grpc_cq_polling_type
fn clone(&self) -> grpc_cq_polling_type
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl Debug for grpc_cq_polling_type
impl Debug for grpc_cq_polling_type
sourceimpl Hash for grpc_cq_polling_type
impl Hash for grpc_cq_polling_type
impl Copy for grpc_cq_polling_type
impl Eq for grpc_cq_polling_type
impl StructuralEq for grpc_cq_polling_type
impl StructuralPartialEq for grpc_cq_polling_type
Auto Trait Implementations
impl RefUnwindSafe for grpc_cq_polling_type
impl Send for grpc_cq_polling_type
impl Sync for grpc_cq_polling_type
impl Unpin for grpc_cq_polling_type
impl UnwindSafe for grpc_cq_polling_type
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more