NAME

       io_uring_wait_cqes_min_timeout - wait for completions with both batch and normal timeout

SYNOPSIS

       #include <liburing.h>

       int io_uring_wait_cqes_min_timeout(struct io_uring *ring,
                                          struct io_uring_cqe **cqe_ptr,
                                          unsigned wait_nr,
                                          struct __kernel_timespec *ts,
                                          unsigned int min_wait_usec,
                                          sigset_t *sigmask);

DESCRIPTION

       The  io_uring_wait_cqes_min_timeout(3)  waits  for completions from the submission queue belonging to the
       ring and waits for wait_nr completion events, or until the timeout ts expires. The completion events  are
       stored in the cqe_ptr array. If non-zero, min_wait_usec denotes a timeout for the wait_nr batch.

       The  sigmask  specifies the set of signals to block. If set, it is equivalent to atomically executing the
       following calls:

           sigset_t origmask;

           pthread_sigmask(SIG_SETMASK, &sigmask, &origmask);
           ret = io_uring_wait_cqes_min_timeout(ring, cqe, wait_nr, ts, min_wait, NULL);
           pthread_sigmask(SIG_SETMASK, &origmask, NULL);

       This works like io_uring_submit_and_wait_min_timeout(3) except that it doesn't submit requests. See  that
       man page for a description for how the min timeout waiting works.

       Available since 6.12.

RETURN VALUE

       On  success  io_uring_wait_cqes_min_timeout(3) returns the 0.On failure it returns -errno.  If the kernel
       doesn't support this functionality, -EINVAL will be returned. See note on the  feature  flag.   The  most
       common  failure  case  is  not receiving a completion within the specified timeout, -ETIME is returned in
       this case.

SEE ALSO

       io_uring_wait_cqe(3),   io_uring_wait_cqes(3),    io_uring_wait_cqe_timeout(3),    io_uring_wait_cqes(3),
       io_uring_submit_and_wait_min_timeout(3)

liburing-2.8                                      Feb 13, 2024                 io_uring_wait_cqes_min_timeout(3)