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    Command:

    io_submit

    
    
    

    SYNOPSIS

           #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.
    
    
    

    DESCRIPTION

           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.
    
    
    

    RETURN VALUE

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

    ERRORS

           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.
    
    
    

    VERSIONS

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

    CONFORMING TO

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

    NOTES

           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_con-
           text_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.
    
    
    

    SEE ALSO

    
    
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