FreeBSD 4.6.2 manual page repository

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aio_error - retrieve error status of asynchronous I/O operation (REAL‐

 

NAME

      aio_error - retrieve error status of asynchronous I/O operation (REAL‐
      TIME)
 

LIBRARY

      Standard C Library (libc, -lc)
 

SYNOPSIS

      #include <aio.h>
 
      int
      aio_error(const struct aiocb *iocb);
 

DESCRIPTION

      The aio_error() function returns the error status of the asynchronous I/O
      request associated with the structure pointed to by iocb.
      If the asynchronous I/O request has completed successfully, aio_error()
      returns 0.  If the request has not yet completed, EINPROGRESS is
      returned.  If the request has completed unsuccessfully the error status
      is returned as described in read(2), write(2), or fsync(2) is returned.
      On failure, aio_error() returns -1 and sets errno to indicate the error
      condition.
 

ERRORS

      The aio_error() function will fail if:
 
      [EINVAL]           iocb does not reference an outstanding asynchronous
                         I/O request.
      aio_cancel(2), aio_read(2), aio_return(2), aio_suspend(2), aio_write(2),
      fsync(2), read(2), write(2)
 

STANDARDS

      aio_error() is expected to conform to the IEEE Std 1003.2 (“POSIX.2”)
      standard.
 

HISTORY

      The aio_error function first appeared in FreeBSD 3.0.
 

AUTHORS

      This manual page was written by Wes Peters 〈wes@softweyr.com〉.
 

Sections

Based on BSD UNIX
FreeBSD is an advanced operating system for x86 compatible (including Pentium and Athlon), amd64 compatible (including Opteron, Athlon64, and EM64T), UltraSPARC, IA-64, PC-98 and ARM architectures. It is derived from BSD, the version of UNIX developed at the University of California, Berkeley. It is developed and maintained by a large team of individuals. Additional platforms are in various stages of development.
 

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