io_destroy(2) System Calls Manual io_destroy(2)
NAME
io_destroy - destroy an asynchronous I/O context
LIBRARY
Standard C library (libc, -lc)
SYNOPSIS
#include <linux/aio_abi.h> /* Definition of aio_context_t */
#include <sys/syscall.h> /* Definition of SYS_* constants */
#include <unistd.h>
int syscall(SYS_io_destroy, aio_context_t ctx_id);
Note: glibc provides no wrapper for io_destroy(), necessitating the use
of syscall(2).
DESCRIPTION
Note: this page describes the raw Linux system call interface. The
wrapper function provided by libaio uses a different type for the ctx_id
argument. See VERSIONS.
The io_destroy() system call will attempt to cancel all outstanding
asynchronous I/O operations against ctx_id, will block on the completion
of all operations that could not be canceled, and will destroy the
ctx_id.
RETURN VALUE
On success, io_destroy() returns 0. For the failure return, see VER-
SIONS.
ERRORS
EFAULT The context pointed to is invalid.
EINVAL The AIO context specified by ctx_id is invalid.
ENOSYS io_destroy() is not implemented on this architecture.
VERSIONS
You probably want to use the io_destroy() wrapper function provided by
libaio.
Note that the libaio wrapper function uses a different type (io_con-
text_t) for the ctx_id argument. Note also that the libaio wrapper does
not follow the usual C library conventions for indicating errors: on er-
ror it returns a negated error number (the negative of one of the values
listed in ERRORS). If the system call is invoked via syscall(2), then
the return value follows the usual conventions for indicating an error:
-1, with errno set to a (positive) value that indicates the error.
STANDARDS
Linux.
HISTORY
Linux 2.5.
SEE ALSO
io_cancel(2), io_getevents(2), io_setup(2), io_submit(2), aio(7)
Linux man-pages 6.9.1 2024-05-02 io_destroy(2)
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