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io_queue_wait
Section: Linux AIO (2)Updated: 2002-09-03
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NAME
io_queue_wait - Wait for io requests to completeSYNOPSIS
#include <errno.h>
#include <libaio.h>
int io_queue_wait(io_context_t ctx, const struct timespec *timeout);
DESCRIPTION
Attempts to read an event from the completion queue for the aio_context specified by ctx_id.RETURN VALUES
May return 0 if no events are available and the timeout specified by when has elapsed, where when == NULL specifies an infinite timeout. Note that the timeout pointed to by when is relative and will be updated if not NULL and the operation blocks. Will fail with -ENOSYS if not implemented.RETURN VALUES
On success, io_queue_wait returns 0. Otherwise, -error is return, where error is one of the Exxx values defined in the Errors section.ERRORS
- EFAULT
- iocbs referenced data outside of the program's accessible address space.
- EINVAL
- ctx refers to an unitialized aio context, the iocb pointed to by iocbs contains an improperly initialized iocb,
- ENOSYS
- Not implemented
SEE ALSO
io(3), io_cancel(3), io_fsync(3), io_getevents(3), io_prep_fsync(3), io_prep_pread(3), io_prep_pwrite(3), io_queue_init(3), io_queue_release(3), io_queue_run(3), io_set_callback(3), io_submit(3), errno(3)