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aio_group_completion_np(3)
NAME
  aio_group_completion_np - Enables the use of aio_results_np function

SYNOPSIS
  #include <aio.h>

  int aio_group_completion_np ( void );

LIBRARY
  Asynchronous I/O Library (libaio, libaio_raw)

PARAMETERS
  None.

DESCRIPTION
  The aio_group_completion_np function enables an application to use aio
  group completion through the aio_results_np function.

  The function must be called before any other aio function.  After this
  call, the use of the aio_error and aio_return functions becomes undefined,
  and they may return unexpected errors.
   The best practice is never to intermix the two forms of aio completion.
  Calling the function after the use of any other aio function results in
  failure.

RETURN VALUES
  If the function returns successfully, the number of completed aio
  operations reported on is returned.  That is, the return value is the
  number of valid entries in the array.	 If the value returned is the same as
  the nent argument, more aio operations may be complete and can be reported
  on by another call to aio_results_np.

  On an unsuccessful call, a value of -1 is returned and errno is set to
  indicate that an error occurred.

ERRORS
  The aio_group_completion_np function fails under the following conditions:

  [EINVAL]
      Another aio function has already been called.

  [EAGAIN]
      Inadequate system resources exist to enable group completion at this
      time.

SEE ALSO
  Functions: aio_read(3), aio_results_np(3), aio_suspend(3), aio_write(3),
  lio_listio(3)

  Guide to Realtime Programming

Index for Section 3

Alphabetical listing for A

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