004d564f90
Various fixes and changes have been applied to liburing since we copied some select bits to the kernel testing/examples part, sync up with liburing to get those changes. Most notable is the change that split the CQE reading into the peek and seen event, instead of being just a single function. Also fixes an unsigned wrap issue in io_uring_submit(), leak of 'fd' in setup if we fail, and various other little issues. Signed-off-by: Jens Axboe <axboe@kernel.dk>
53 lines
1.2 KiB
C
53 lines
1.2 KiB
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"
|
|
|
|
#ifdef __alpha__
|
|
/*
|
|
* alpha is the only exception, all other architectures
|
|
* have common numbers for new system calls.
|
|
*/
|
|
# ifndef __NR_io_uring_setup
|
|
# define __NR_io_uring_setup 535
|
|
# endif
|
|
# ifndef __NR_io_uring_enter
|
|
# define __NR_io_uring_enter 536
|
|
# endif
|
|
# ifndef __NR_io_uring_register
|
|
# define __NR_io_uring_register 537
|
|
# endif
|
|
#else /* !__alpha__ */
|
|
# ifndef __NR_io_uring_setup
|
|
# define __NR_io_uring_setup 425
|
|
# endif
|
|
# ifndef __NR_io_uring_enter
|
|
# define __NR_io_uring_enter 426
|
|
# endif
|
|
# ifndef __NR_io_uring_register
|
|
# define __NR_io_uring_register 427
|
|
# endif
|
|
#endif
|
|
|
|
int io_uring_register(int fd, unsigned int opcode, void *arg,
|
|
unsigned int nr_args)
|
|
{
|
|
return syscall(__NR_io_uring_register, fd, opcode, arg, nr_args);
|
|
}
|
|
|
|
int io_uring_setup(unsigned int entries, struct io_uring_params *p)
|
|
{
|
|
return syscall(__NR_io_uring_setup, entries, p);
|
|
}
|
|
|
|
int io_uring_enter(int fd, unsigned int to_submit, unsigned int min_complete,
|
|
unsigned int flags, sigset_t *sig)
|
|
{
|
|
return syscall(__NR_io_uring_enter, fd, to_submit, min_complete,
|
|
flags, sig, _NSIG / 8);
|
|
}
|