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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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21b4aa5d20
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>
41 lines
984 B
C
41 lines
984 B
C
/*
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* Will go away once libc support is there
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*/
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#include <unistd.h>
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#include <sys/syscall.h>
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#include <sys/uio.h>
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#include <signal.h>
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#include "liburing.h"
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#if defined(__x86_64) || defined(__i386__)
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#ifndef __NR_sys_io_uring_setup
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#define __NR_sys_io_uring_setup 425
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#endif
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#ifndef __NR_sys_io_uring_enter
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#define __NR_sys_io_uring_enter 426
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#endif
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#ifndef __NR_sys_io_uring_register
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#define __NR_sys_io_uring_register 427
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#endif
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#else
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#error "Arch not supported yet"
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#endif
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int io_uring_register(int fd, unsigned int opcode, void *arg,
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unsigned int nr_args)
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{
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return syscall(__NR_sys_io_uring_register, fd, opcode, arg, nr_args);
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}
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int io_uring_setup(unsigned entries, struct io_uring_params *p)
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{
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return syscall(__NR_sys_io_uring_setup, entries, p);
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}
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int io_uring_enter(unsigned fd, unsigned to_submit, unsigned min_complete,
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unsigned flags, sigset_t *sig)
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{
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return syscall(__NR_sys_io_uring_enter, fd, to_submit, min_complete,
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flags, sig, _NSIG / 8);
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}
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