Provided by: manpages-dev_4.04-2_all bug


       io_submit - submit asynchronous I/O blocks for processing


       #include <linux/aio_abi.h>          /* Defines needed types */

       int io_submit(aio_context_t ctx_id, long nr, struct iocb **iocbpp);

       Note: There is no glibc wrapper for this system call; see NOTES.


       The io_submit() system call queues nr I/O request blocks for processing in the AIO context
       ctx_id.  The iocbpp argument should be an array of nr AIO control blocks,  which  will  be
       submitted to context ctx_id.


       On  success,  io_submit()  returns  the number of iocbs submitted (which may be 0 if nr is
       zero).  For the failure return, see NOTES.


       EAGAIN Insufficient resources are available to queue any iocbs.

       EBADF  The file descriptor specified in the first iocb is invalid.

       EFAULT One of the data structures points to invalid data.

       EINVAL The AIO context specified by ctx_id is invalid.  nr is less than 0.   The  iocb  at
              *iocbpp[0]  is  not properly initialized, or the operation specified is invalid for
              the file descriptor in the iocb.

       ENOSYS io_submit() is not implemented on this architecture.


       The asynchronous I/O system calls first appeared in Linux 2.5.


       io_submit() is Linux-specific and should not be used in programs that are intended  to  be


       Glibc does not provide a wrapper function for this system call.  You could invoke it using
       syscall(2).  But instead, you probably  want  to  use  the  io_submit()  wrapper  function
       provided by libaio.

       Note  that the libaio wrapper function uses a different type (io_context_t) for the ctx_id
       argument.  Note also that  the  libaio  wrapper  does  not  follow  the  usual  C  library
       conventions  for  indicating  errors:  on  error  it  returns  a negated error number (the
       negative of one of the values listed in ERRORS).   If  the  system  call  is  invoked  via
       syscall(2),  then  the return value follows the usual conventions for indicating an error:
       -1, with errno set to a (positive) value that indicates the error.


       io_cancel(2), io_destroy(2), io_getevents(2), io_setup(2), aio(7)


       This page is part of release 4.04 of the Linux man-pages project.  A  description  of  the
       project,  information  about  reporting  bugs, and the latest version of this page, can be
       found at