aiowait man page on OpenIndiana

Man page or keyword search:  
man Server   20441 pages
apropos Keyword Search (all sections)
Output format
OpenIndiana logo
[printable version]

aiowait(3C)		 Standard C Library Functions		   aiowait(3C)

NAME
       aiowait - wait for completion of asynchronous I/O operation

SYNOPSIS
       #include <sys/asynch.h>
       #include <sys/time.h>

       aio_result_t *aiowait(const struct timeval *timeout);

DESCRIPTION
       The  aiowait()  function	 suspends the calling process until one of its
       outstanding asynchronous I/O operations completes, providing a synchro‐
       nous method of notification.

       If  timeout  is	a non-zero pointer, it specifies a maximum interval to
       wait for the completion of an asynchronous I/O operation. If timeout is
       a  zero	pointer, aiowait() blocks indefinitely.	 To effect a poll, the
       timeout parameter should be non-zero, pointing to a zero-valued timeval
       structure.

       The  timeval structure is defined in <sys/time.h> and contains the fol‐
       lowing members:

	 long  tv_sec;		 /* seconds */
	 long  tv_usec;		 /* and microseconds */

RETURN VALUES
       Upon successful completion, aiowait() returns a pointer to  the	result
       structure  used	when  the  completed  asynchronous  I/O	 operation was
       requested. Upon failure, aiowait() returns −1 and sets errno  to	 indi‐
       cate the error. aiowait() returns 0 if the time limit expires.

ERRORS
       The aiowait() function will fail if:

       EFAULT	 The timeout argument points to an address outside the address
		 space of the requesting process.  See NOTES.

       EINTR	 The execution of aiowait() was interrupted by a signal.

       EINVAL	 There are no outstanding asynchronous I/O requests.

       EINVAL	 The tv_secs member of the timeval  structure  pointed	to  by
		 timeout is less than 0 or the tv_usecs member is greater than
		 the number of seconds in a microsecond.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌─────────────────────────────┬─────────────────────────────┐
       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE VALUE	   │
       ├─────────────────────────────┼─────────────────────────────┤
       │MT-Level		     │Safe			   │
       └─────────────────────────────┴─────────────────────────────┘

SEE ALSO
       aiocancel(3C), aioread(3C), attributes(5)

NOTES
       The aiowait() function is the only way to dequeue an asynchronous noti‐
       fication. It can be used either inside a SIGIO signal handler or in the
       main program. One SIGIO signal can represent several queued events.

       Passing an illegal address as timeout will result in setting  errno  to
       EFAULT only if detected by the application process.

SunOS 5.11			  5 Feb 2008			   aiowait(3C)
[top]

List of man pages available for OpenIndiana

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net