opensolaris man page for aiocancel

aiocancel(3C)						   Standard C Library Functions 					     aiocancel(3C)

NAME
       aiocancel - cancel an asynchronous operation

SYNOPSIS
       #include <sys/asynch.h>

       int aiocancel(aio_result_t *resultp);

DESCRIPTION
       aiocancel()  cancels  the asynchronous operation associated with the result buffer pointed to by resultp. It may not be possible to immedi-
       ately cancel an operation which is in progress and in this case, aiocancel() will not wait to cancel it.

       Upon successful completion, aiocancel() returns	0 and the requested operation is cancelled.  The application will not  receive	the  SIGIO
       completion signal for an asynchronous operation that is successfully cancelled.

RETURN VALUES
       Upon successful completion, aiocancel() returns 0. Upon failure, aiocancel() returns -1 and sets errno to indicate the error.

ERRORS
       aiocancel() will fail if any of the following are true:

       EACCES	 The  parameter  resultp  does	not correspond to any outstanding asynchronous operation, although there is at least one currently
		 outstanding.

       EFAULT	 resultp points to an address outside the address space of the requesting process.  See NOTES.

       EINVAL	 There are not any outstanding requests to cancel.

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

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

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

SunOS 5.11							    5 Feb 1997							     aiocancel(3C)