Linux cli command io_destroy

➡ A Linux man page (short for manual page) is a form of software documentation found on Linux and Unix-like operating systems. This man-page explains the command io_destroy and provides detailed information about the command io_destroy, system calls, library functions, and other aspects of the system, including usage, options, and examples of _. You can access this man page by typing man followed by the io_destroy.

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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 VERSIONS.

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_context_t) for the ctx_id argument. Note also that the libaio wrapper does not follow the usual C library conventions for indicating errors: on error 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)

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