aio_suspend(3)

1AIO_SUSPEND(3)             Linux Programmer's Manual            AIO_SUSPEND(3)
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NAME

6       aio_suspend - wait for asynchronous I/O operation or timeout
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SYNOPSIS

9       #include <aio.h>
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11       int aio_suspend(const struct aiocb * const cblist[],
12                       int n, const struct timespec *timeout);
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14       Link with -lrt.
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DESCRIPTION

17       The  aio_suspend() function suspends the calling process until at least
18       one of the asynchronous I/O requests in the list  cblist  of  length  n
19       have  completed,  a signal is delivered, or timeout is not NULL and the
20       time interval it indicates has passed.
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22       Each item in the list must either be NULL (and then is ignored),  or  a
23       pointer   to   a  control  block  on  which  I/O  was  initiated  using
24       aio_read(3), aio_write(3), or lio_listio(3).
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26       If CLOCK_MONOTONIC is supported, this clock  is  used  to  measure  the
27       timeout interval.
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RETURN VALUE

30       If  this  function  returns  after  completion  of one of the indicated
31       requests, it returns 0.  Otherwise it returns -1 and sets errno  appro‐
32       priately.
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ERRORS

35       EAGAIN The call was ended by timeout, before any of the indicated oper‐
36              ations had completed.
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38       EINTR  The call was ended by signal; see signal(7).  (Possibly the com‐
39              pletion signal of one of the operations we were waiting for.)
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CONFORMING TO

42       POSIX.1-2001.
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NOTES

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

53       This  page  is  part of release 3.22 of the Linux man-pages project.  A
54       description of the project, and information about reporting  bugs,  can
55       be found at http://www.kernel.org/doc/man-pages/.
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59                                  2003-11-14                    AIO_SUSPEND(3)