aio_suspend - phpMan

AIO_SUSPEND(3)             Linux Programmer’s Manual            AIO_SUSPEND(3)



NAME
       aio_suspend - wait for asynchronous I/O operation or timeout

SYNOPSIS
       #include <aio.h>

       int aio_suspend(const struct aiocb * const cblist[],
                       int n, const struct timespec *timeout);


DESCRIPTION
       The  aio_suspend  function  suspends  the calling process until at least one of the
       asynchronous I/O requests in the list cblist of length n have completed,  a  signal
       is delivered, or timeout is not NULL and the time interval it indicates has passed.

       Each item in the list must either be NULL (and then is ignored), or a pointer to  a
       control  block  on  which  I/O  was  initiated  using aio_read(3), aio_write(3), or
       lio_listio(3).

       If CLOCK_MONOTONIC is supported, this clock is used to measure the  timeout  inter-
       val.

RETURN VALUE
       If  this  function  returns  after  completion of one of the indicated requests, it
       returns 0. Otherwise it returns -1 and sets errno appropriately.

ERRORS
       EAGAIN The call was ended by timeout, before any of the  indicated  operations  had
              completed.

       EINTR  The call was ended by signal.  (Possibly the completion signal of one of the
              operations we were waiting for.)

NOTE
       One can achieve polling by using a non-NULL timeout  that  specifies  a  zero  time
       interval.

CONFORMING TO
       POSIX 1003.1-2003

SEE ALSO
       aio_cancel(3), aio_error(3), aio_fsync(3), aio_read(3), aio_return(3), aio_write(3)



                                  2003-11-14                    AIO_SUSPEND(3)

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