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io_destroy(2) [linux man page]

IO_DESTROY(2)						     Linux Programmer's Manual						     IO_DESTROY(2)

NAME
io_destroy - destroy an asynchronous I/O context SYNOPSIS
#include <libaio.h> int io_destroy(aio_context_t ctx); Link with -laio. DESCRIPTION
io_destroy() removes the asynchronous I/O context from the list of I/O contexts and then destroys it. io_destroy() can also cancel any outstanding asynchronous I/O actions on ctx and block on completion. RETURN VALUE
On success, io_destroy() returns 0. For the failure return, see NOTES. ERRORS
EFAULT The context pointed to is invalid. EINVAL The AIO context specified by ctx is invalid. ENOSYS io_destroy() is not implemented on this architecture. VERSIONS
The asynchronous I/O system calls first appeared in Linux 2.5, August 2002. CONFORMING TO
io_destroy() is Linux-specific and should not be used in programs that are intended to be portable. NOTES
Glibc does not provide a wrapper function for this system call. The wrapper provided in libaio for io_destroy() does not follow the usual C library conventions for indicating error: 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. SEE ALSO
io_cancel(2), io_getevents(2), io_setup(2), io_submit(2) COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 2008-06-18 IO_DESTROY(2)

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IO_DESTROY(2)						     Linux Programmer's Manual						     IO_DESTROY(2)

NAME
io_destroy - destroy an asynchronous I/O context SYNOPSIS
#include <linux/aio_abi.h> /* Defines needed types */ int io_destroy(aio_context_t ctx_id); Note: There is no glibc wrapper for this system call; see NOTES. DESCRIPTION
The io_destroy() system call will attempt to cancel all outstanding asynchronous I/O operations against ctx_id, will block on the comple- tion 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 NOTES. 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
The asynchronous I/O system calls first appeared in Linux 2.5. CONFORMING TO
io_destroy() is Linux-specific and should not be used in programs that are intended to be portable. NOTES
Glibc does not provide a wrapper function for this system call. You could invoke it using syscall(2). But instead, 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. SEE ALSO
io_cancel(2), io_getevents(2), io_setup(2), io_submit(2), aio(7) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. Linux 2017-09-15 IO_DESTROY(2)
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