linux/tools/io_uring/syscall.c
Jens Axboe 21b4aa5d20 io_uring: add a few test tools
This adds two test programs in tools/io_uring/ that demonstrate both
the raw io_uring API (and all features) through a small benchmark
app, io_uring-bench, and the liburing exposed API in a simplified
cp(1) implementation through io_uring-cp.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-03-06 13:00:16 -07:00

41 lines
984 B
C

/*
* Will go away once libc support is there
*/
#include <unistd.h>
#include <sys/syscall.h>
#include <sys/uio.h>
#include <signal.h>
#include "liburing.h"
#if defined(__x86_64) || defined(__i386__)
#ifndef __NR_sys_io_uring_setup
#define __NR_sys_io_uring_setup 425
#endif
#ifndef __NR_sys_io_uring_enter
#define __NR_sys_io_uring_enter 426
#endif
#ifndef __NR_sys_io_uring_register
#define __NR_sys_io_uring_register 427
#endif
#else
#error "Arch not supported yet"
#endif
int io_uring_register(int fd, unsigned int opcode, void *arg,
unsigned int nr_args)
{
return syscall(__NR_sys_io_uring_register, fd, opcode, arg, nr_args);
}
int io_uring_setup(unsigned entries, struct io_uring_params *p)
{
return syscall(__NR_sys_io_uring_setup, entries, p);
}
int io_uring_enter(unsigned fd, unsigned to_submit, unsigned min_complete,
unsigned flags, sigset_t *sig)
{
return syscall(__NR_sys_io_uring_enter, fd, to_submit, min_complete,
flags, sig, _NSIG / 8);
}