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-.TH io_queue_init 2 2002-09-03 "Linux 2.4" "Linux AIO"
-.SH NAME
-io_queue_init \- Initialize asynchronous io state machine
-
-.SH SYNOPSIS
-.nf
-.B #include <errno.h>
-.br
-.sp
-.B #include <libaio.h>
-.br
-.sp
-.BI "int io_queue_init(int maxevents, io_context_t *ctx );"
-.sp
-.fi
-.SH DESCRIPTION
-.B io_queue_init
-Attempts to create an aio context capable of receiving at least
-.IR maxevents
-events.
-.IR ctx
-must point to an aio context that already exists and must be initialized
-to
-.IR 0
-before the call.
-If the operation is successful, *cxtp is filled with the resulting handle.
-.SH "RETURN VALUES"
-On success,
-.B io_queue_init
-returns 0. Otherwise, -error is return, where
-error is one of the Exxx values defined in the Errors section.
-.SH ERRORS
-.TP
-.B EFAULT
-.I iocbs
-referenced data outside of the program's accessible address space.
-.TP
-.B EINVAL
-.I maxevents
-is <= 0 or
-.IR ctx
-is an invalid memory locattion.
-.TP
-.B ENOSYS
-Not implemented
-.TP
-.B EAGAIN
-.IR "maxevents > max_aio_reqs"
-where max_aio_reqs is a tunable value.
-.SH "SEE ALSO"
-.BR io(3),
-.BR io_cancel(3),
-.BR io_fsync(3),
-.BR io_getevents(3),
-.BR io_prep_fsync(3),
-.BR io_prep_pread(3),
-.BR io_prep_pwrite(3),
-.BR io_queue_release(3),
-.BR io_queue_run(3),
-.BR io_queue_wait(3),
-.BR io_set_callback(3),
-.BR io_submit(3),
-.BR errno(3)