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 immediately 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

aiocancel() returns:

0 on success. 

−1 on failure 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 an outstanding asynchronous operation. 

EINVAL There are not any outstanding requests to cancel. 

SEE ALSO

aioread(3), aiowait(3)

SunOS 5.1/x86  —  Last change: 5 Jul 1990