libc/kernel/uapi/linux/io_uring.h - android_bionic - Gitiles

 /*
  * This file is auto-generated. Modifications will be lost.
  *
  * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
  * for more information.
  */
 #ifndef LINUX_IO_URING_H
 #define LINUX_IO_URING_H
 #include <linux/fs.h>
 #include <linux/types.h>
 #ifndef UAPI_LINUX_IO_URING_H_SKIP_LINUX_TIME_TYPES_H
 #include <linux/time_types.h>
 #endif
 #ifdef __cplusplus
 extern "C" {
 #endif
 struct io_uring_sqe {
   __u8 opcode;
   __u8 flags;
   __u16 ioprio;
   __s32 fd;
   union {
     __u64 off;
     __u64 addr2;
     struct {
       __u32 cmd_op;
       __u32 __pad1;
     };
   };
   union {
     __u64 addr;
     __u64 splice_off_in;
   };
   __u32 len;
   union {
     __kernel_rwf_t rw_flags;
     __u32 fsync_flags;
     __u16 poll_events;
     __u32 poll32_events;
     __u32 sync_range_flags;
     __u32 msg_flags;
     __u32 timeout_flags;
     __u32 accept_flags;
     __u32 cancel_flags;
     __u32 open_flags;
     __u32 statx_flags;
     __u32 fadvise_advice;
     __u32 splice_flags;
     __u32 rename_flags;
     __u32 unlink_flags;
     __u32 hardlink_flags;
     __u32 xattr_flags;
     __u32 msg_ring_flags;
     __u32 uring_cmd_flags;
   };
   __u64 user_data;
   union {
     __u16 buf_index;
     __u16 buf_group;
   } __attribute__((packed));
   __u16 personality;
   union {
     __s32 splice_fd_in;
     __u32 file_index;
     struct {
       __u16 addr_len;
       __u16 __pad3[1];
     };
   };
   union {
     struct {
       __u64 addr3;
       __u64 __pad2[1];
     };
     __u8 cmd[0];
   };
 };
 #define IORING_FILE_INDEX_ALLOC (~0U)
 enum {
   IOSQE_FIXED_FILE_BIT,
   IOSQE_IO_DRAIN_BIT,
   IOSQE_IO_LINK_BIT,
   IOSQE_IO_HARDLINK_BIT,
   IOSQE_ASYNC_BIT,
   IOSQE_BUFFER_SELECT_BIT,
   IOSQE_CQE_SKIP_SUCCESS_BIT,
 };
 #define IOSQE_FIXED_FILE (1U << IOSQE_FIXED_FILE_BIT)
 #define IOSQE_IO_DRAIN (1U << IOSQE_IO_DRAIN_BIT)
 #define IOSQE_IO_LINK (1U << IOSQE_IO_LINK_BIT)
 #define IOSQE_IO_HARDLINK (1U << IOSQE_IO_HARDLINK_BIT)
 #define IOSQE_ASYNC (1U << IOSQE_ASYNC_BIT)
 #define IOSQE_BUFFER_SELECT (1U << IOSQE_BUFFER_SELECT_BIT)
 #define IOSQE_CQE_SKIP_SUCCESS (1U << IOSQE_CQE_SKIP_SUCCESS_BIT)
 #define IORING_SETUP_IOPOLL (1U << 0)
 #define IORING_SETUP_SQPOLL (1U << 1)
 #define IORING_SETUP_SQ_AFF (1U << 2)
 #define IORING_SETUP_CQSIZE (1U << 3)
 #define IORING_SETUP_CLAMP (1U << 4)
 #define IORING_SETUP_ATTACH_WQ (1U << 5)
 #define IORING_SETUP_R_DISABLED (1U << 6)
 #define IORING_SETUP_SUBMIT_ALL (1U << 7)
 #define IORING_SETUP_COOP_TASKRUN (1U << 8)
 #define IORING_SETUP_TASKRUN_FLAG (1U << 9)
 #define IORING_SETUP_SQE128 (1U << 10)
 #define IORING_SETUP_CQE32 (1U << 11)
 #define IORING_SETUP_SINGLE_ISSUER (1U << 12)
 #define IORING_SETUP_DEFER_TASKRUN (1U << 13)
 #define IORING_SETUP_NO_MMAP (1U << 14)
 #define IORING_SETUP_REGISTERED_FD_ONLY (1U << 15)
 #define IORING_SETUP_NO_SQARRAY (1U << 16)
 enum io_uring_op {
   IORING_OP_NOP,
   IORING_OP_READV,
   IORING_OP_WRITEV,
   IORING_OP_FSYNC,
   IORING_OP_READ_FIXED,
   IORING_OP_WRITE_FIXED,
   IORING_OP_POLL_ADD,
   IORING_OP_POLL_REMOVE,
   IORING_OP_SYNC_FILE_RANGE,
   IORING_OP_SENDMSG,
   IORING_OP_RECVMSG,
   IORING_OP_TIMEOUT,
   IORING_OP_TIMEOUT_REMOVE,
   IORING_OP_ACCEPT,
   IORING_OP_ASYNC_CANCEL,
   IORING_OP_LINK_TIMEOUT,
   IORING_OP_CONNECT,
   IORING_OP_FALLOCATE,
   IORING_OP_OPENAT,
   IORING_OP_CLOSE,
   IORING_OP_FILES_UPDATE,
   IORING_OP_STATX,
   IORING_OP_READ,
   IORING_OP_WRITE,
   IORING_OP_FADVISE,
   IORING_OP_MADVISE,
   IORING_OP_SEND,
   IORING_OP_RECV,
   IORING_OP_OPENAT2,
   IORING_OP_EPOLL_CTL,
   IORING_OP_SPLICE,
   IORING_OP_PROVIDE_BUFFERS,
   IORING_OP_REMOVE_BUFFERS,
   IORING_OP_TEE,
   IORING_OP_SHUTDOWN,
   IORING_OP_RENAMEAT,
   IORING_OP_UNLINKAT,
   IORING_OP_MKDIRAT,
   IORING_OP_SYMLINKAT,
   IORING_OP_LINKAT,
   IORING_OP_MSG_RING,
   IORING_OP_FSETXATTR,
   IORING_OP_SETXATTR,
   IORING_OP_FGETXATTR,
   IORING_OP_GETXATTR,
   IORING_OP_SOCKET,
   IORING_OP_URING_CMD,
   IORING_OP_SEND_ZC,
   IORING_OP_SENDMSG_ZC,
   IORING_OP_LAST,
 };
 #define IORING_URING_CMD_FIXED (1U << 0)
 #define IORING_URING_CMD_POLLED (1U << 31)
 #define IORING_FSYNC_DATASYNC (1U << 0)
 #define IORING_TIMEOUT_ABS (1U << 0)
 #define IORING_TIMEOUT_UPDATE (1U << 1)
 #define IORING_TIMEOUT_BOOTTIME (1U << 2)
 #define IORING_TIMEOUT_REALTIME (1U << 3)
 #define IORING_LINK_TIMEOUT_UPDATE (1U << 4)
 #define IORING_TIMEOUT_ETIME_SUCCESS (1U << 5)
 #define IORING_TIMEOUT_MULTISHOT (1U << 6)
 #define IORING_TIMEOUT_CLOCK_MASK (IORING_TIMEOUT_BOOTTIME | IORING_TIMEOUT_REALTIME)
 #define IORING_TIMEOUT_UPDATE_MASK (IORING_TIMEOUT_UPDATE | IORING_LINK_TIMEOUT_UPDATE)
 #define SPLICE_F_FD_IN_FIXED (1U << 31)
 #define IORING_POLL_ADD_MULTI (1U << 0)
 #define IORING_POLL_UPDATE_EVENTS (1U << 1)
 #define IORING_POLL_UPDATE_USER_DATA (1U << 2)
 #define IORING_POLL_ADD_LEVEL (1U << 3)
 #define IORING_ASYNC_CANCEL_ALL (1U << 0)
 #define IORING_ASYNC_CANCEL_FD (1U << 1)
 #define IORING_ASYNC_CANCEL_ANY (1U << 2)
 #define IORING_ASYNC_CANCEL_FD_FIXED (1U << 3)
 #define IORING_ASYNC_CANCEL_USERDATA (1U << 4)
 #define IORING_ASYNC_CANCEL_OP (1U << 5)
 #define IORING_RECVSEND_POLL_FIRST (1U << 0)
 #define IORING_RECV_MULTISHOT (1U << 1)
 #define IORING_RECVSEND_FIXED_BUF (1U << 2)
 #define IORING_SEND_ZC_REPORT_USAGE (1U << 3)
 #define IORING_NOTIF_USAGE_ZC_COPIED (1U << 31)
 #define IORING_ACCEPT_MULTISHOT (1U << 0)
 enum {
   IORING_MSG_DATA,
   IORING_MSG_SEND_FD,
 };
 #define IORING_MSG_RING_CQE_SKIP (1U << 0)
 #define IORING_MSG_RING_FLAGS_PASS (1U << 1)
 struct io_uring_cqe {
   __u64 user_data;
   __s32 res;
   __u32 flags;
   __u64 big_cqe[];
 };
 #define IORING_CQE_F_BUFFER (1U << 0)
 #define IORING_CQE_F_MORE (1U << 1)
 #define IORING_CQE_F_SOCK_NONEMPTY (1U << 2)
 #define IORING_CQE_F_NOTIF (1U << 3)
 enum {
   IORING_CQE_BUFFER_SHIFT = 16,
 };
 #define IORING_OFF_SQ_RING 0ULL
 #define IORING_OFF_CQ_RING 0x8000000ULL
 #define IORING_OFF_SQES 0x10000000ULL
 #define IORING_OFF_PBUF_RING 0x80000000ULL
 #define IORING_OFF_PBUF_SHIFT 16
 #define IORING_OFF_MMAP_MASK 0xf8000000ULL
 struct io_sqring_offsets {
   __u32 head;
   __u32 tail;
   __u32 ring_mask;
   __u32 ring_entries;
   __u32 flags;
   __u32 dropped;
   __u32 array;
   __u32 resv1;
   __u64 user_addr;
 };
 #define IORING_SQ_NEED_WAKEUP (1U << 0)
 #define IORING_SQ_CQ_OVERFLOW (1U << 1)
 #define IORING_SQ_TASKRUN (1U << 2)
 struct io_cqring_offsets {
   __u32 head;
   __u32 tail;
   __u32 ring_mask;
   __u32 ring_entries;
   __u32 overflow;
   __u32 cqes;
   __u32 flags;
   __u32 resv1;
   __u64 user_addr;
 };
 #define IORING_CQ_EVENTFD_DISABLED (1U << 0)
 #define IORING_ENTER_GETEVENTS (1U << 0)
 #define IORING_ENTER_SQ_WAKEUP (1U << 1)
 #define IORING_ENTER_SQ_WAIT (1U << 2)
 #define IORING_ENTER_EXT_ARG (1U << 3)
 #define IORING_ENTER_REGISTERED_RING (1U << 4)
 struct io_uring_params {
   __u32 sq_entries;
   __u32 cq_entries;
   __u32 flags;
   __u32 sq_thread_cpu;
   __u32 sq_thread_idle;
   __u32 features;
   __u32 wq_fd;
   __u32 resv[3];
   struct io_sqring_offsets sq_off;
   struct io_cqring_offsets cq_off;
 };
 #define IORING_FEAT_SINGLE_MMAP (1U << 0)
 #define IORING_FEAT_NODROP (1U << 1)
 #define IORING_FEAT_SUBMIT_STABLE (1U << 2)
 #define IORING_FEAT_RW_CUR_POS (1U << 3)
 #define IORING_FEAT_CUR_PERSONALITY (1U << 4)
 #define IORING_FEAT_FAST_POLL (1U << 5)
 #define IORING_FEAT_POLL_32BITS (1U << 6)
 #define IORING_FEAT_SQPOLL_NONFIXED (1U << 7)
 #define IORING_FEAT_EXT_ARG (1U << 8)
 #define IORING_FEAT_NATIVE_WORKERS (1U << 9)
 #define IORING_FEAT_RSRC_TAGS (1U << 10)
 #define IORING_FEAT_CQE_SKIP (1U << 11)
 #define IORING_FEAT_LINKED_FILE (1U << 12)
 #define IORING_FEAT_REG_REG_RING (1U << 13)
 enum {
   IORING_REGISTER_BUFFERS = 0,
   IORING_UNREGISTER_BUFFERS = 1,
   IORING_REGISTER_FILES = 2,
   IORING_UNREGISTER_FILES = 3,
   IORING_REGISTER_EVENTFD = 4,
   IORING_UNREGISTER_EVENTFD = 5,
   IORING_REGISTER_FILES_UPDATE = 6,
   IORING_REGISTER_EVENTFD_ASYNC = 7,
   IORING_REGISTER_PROBE = 8,
   IORING_REGISTER_PERSONALITY = 9,
   IORING_UNREGISTER_PERSONALITY = 10,
   IORING_REGISTER_RESTRICTIONS = 11,
   IORING_REGISTER_ENABLE_RINGS = 12,
   IORING_REGISTER_FILES2 = 13,
   IORING_REGISTER_FILES_UPDATE2 = 14,
   IORING_REGISTER_BUFFERS2 = 15,
   IORING_REGISTER_BUFFERS_UPDATE = 16,
   IORING_REGISTER_IOWQ_AFF = 17,
   IORING_UNREGISTER_IOWQ_AFF = 18,
   IORING_REGISTER_IOWQ_MAX_WORKERS = 19,
   IORING_REGISTER_RING_FDS = 20,
   IORING_UNREGISTER_RING_FDS = 21,
   IORING_REGISTER_PBUF_RING = 22,
   IORING_UNREGISTER_PBUF_RING = 23,
   IORING_REGISTER_SYNC_CANCEL = 24,
   IORING_REGISTER_FILE_ALLOC_RANGE = 25,
   IORING_REGISTER_LAST,
   IORING_REGISTER_USE_REGISTERED_RING = 1U << 31
 };
 enum {
   IO_WQ_BOUND,
   IO_WQ_UNBOUND,
 };
 struct io_uring_files_update {
   __u32 offset;
   __u32 resv;
   __aligned_u64 fds;
 };
 #define IORING_RSRC_REGISTER_SPARSE (1U << 0)
 struct io_uring_rsrc_register {
   __u32 nr;
   __u32 flags;
   __u64 resv2;
   __aligned_u64 data;
   __aligned_u64 tags;
 };
 struct io_uring_rsrc_update {
   __u32 offset;
   __u32 resv;
   __aligned_u64 data;
 };
 struct io_uring_rsrc_update2 {
   __u32 offset;
   __u32 resv;
   __aligned_u64 data;
   __aligned_u64 tags;
   __u32 nr;
   __u32 resv2;
 };
 #define IORING_REGISTER_FILES_SKIP (- 2)
 #define IO_URING_OP_SUPPORTED (1U << 0)
 struct io_uring_probe_op {
   __u8 op;
   __u8 resv;
   __u16 flags;
   __u32 resv2;
 };
 struct io_uring_probe {
   __u8 last_op;
   __u8 ops_len;
   __u16 resv;
   __u32 resv2[3];
   struct io_uring_probe_op ops[];
 };
 struct io_uring_restriction {
   __u16 opcode;
   union {
     __u8 register_op;
     __u8 sqe_op;
     __u8 sqe_flags;
   };
   __u8 resv;
   __u32 resv2[3];
 };
 struct io_uring_buf {
   __u64 addr;
   __u32 len;
   __u16 bid;
   __u16 resv;
 };
 struct io_uring_buf_ring {
   union {
     struct {
       __u64 resv1;
       __u32 resv2;
       __u16 resv3;
       __u16 tail;
     };
     __DECLARE_FLEX_ARRAY(struct io_uring_buf, bufs);
   };
 };
 enum {
   IOU_PBUF_RING_MMAP = 1,
 };
 struct io_uring_buf_reg {
   __u64 ring_addr;
   __u32 ring_entries;
   __u16 bgid;
   __u16 flags;
   __u64 resv[3];
 };
 enum {
   IORING_RESTRICTION_REGISTER_OP = 0,
   IORING_RESTRICTION_SQE_OP = 1,
   IORING_RESTRICTION_SQE_FLAGS_ALLOWED = 2,
   IORING_RESTRICTION_SQE_FLAGS_REQUIRED = 3,
   IORING_RESTRICTION_LAST
 };
 struct io_uring_getevents_arg {
   __u64 sigmask;
   __u32 sigmask_sz;
   __u32 pad;
   __u64 ts;
 };
 struct io_uring_sync_cancel_reg {
   __u64 addr;
   __s32 fd;
   __u32 flags;
   struct __kernel_timespec timeout;
   __u8 opcode;
   __u8 pad[7];
   __u64 pad2[3];
 };
 struct io_uring_file_index_range {
   __u32 off;
   __u32 len;
   __u64 resv;
 };
 struct io_uring_recvmsg_out {
   __u32 namelen;
   __u32 controllen;
   __u32 payloadlen;
   __u32 flags;
 };
 enum {
   SOCKET_URING_OP_SIOCINQ = 0,
   SOCKET_URING_OP_SIOCOUTQ,
 };
 #ifdef __cplusplus
 }
 #endif
 #endif
	/*
	* This file is auto-generated. Modifications will be lost.
	*
	* See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
	* for more information.
	*/
	#ifndef LINUX_IO_URING_H
	#define LINUX_IO_URING_H
	#include <linux/fs.h>
	#include <linux/types.h>
	#ifndef UAPI_LINUX_IO_URING_H_SKIP_LINUX_TIME_TYPES_H
	#include <linux/time_types.h>
	#endif
	#ifdef __cplusplus
	extern "C" {
	#endif
	struct io_uring_sqe {
	__u8 opcode;
	__u8 flags;
	__u16 ioprio;
	__s32 fd;
	union {
	__u64 off;
	__u64 addr2;
	struct {
	__u32 cmd_op;
	__u32 __pad1;
	};
	};
	union {
	__u64 addr;
	__u64 splice_off_in;
	};
	__u32 len;
	union {
	__kernel_rwf_t rw_flags;
	__u32 fsync_flags;
	__u16 poll_events;
	__u32 poll32_events;
	__u32 sync_range_flags;
	__u32 msg_flags;
	__u32 timeout_flags;
	__u32 accept_flags;
	__u32 cancel_flags;
	__u32 open_flags;
	__u32 statx_flags;
	__u32 fadvise_advice;
	__u32 splice_flags;
	__u32 rename_flags;
	__u32 unlink_flags;
	__u32 hardlink_flags;
	__u32 xattr_flags;
	__u32 msg_ring_flags;
	__u32 uring_cmd_flags;
	};
	__u64 user_data;
	union {
	__u16 buf_index;
	__u16 buf_group;
	} __attribute__((packed));
	__u16 personality;
	union {
	__s32 splice_fd_in;
	__u32 file_index;
	struct {
	__u16 addr_len;
	__u16 __pad3[1];
	};
	};
	union {
	struct {
	__u64 addr3;
	__u64 __pad2[1];
	};
	__u8 cmd[0];
	};
	};
	#define IORING_FILE_INDEX_ALLOC (~0U)
	enum {
	IOSQE_FIXED_FILE_BIT,
	IOSQE_IO_DRAIN_BIT,
	IOSQE_IO_LINK_BIT,
	IOSQE_IO_HARDLINK_BIT,
	IOSQE_ASYNC_BIT,
	IOSQE_BUFFER_SELECT_BIT,
	IOSQE_CQE_SKIP_SUCCESS_BIT,
	};
	#define IOSQE_FIXED_FILE (1U << IOSQE_FIXED_FILE_BIT)
	#define IOSQE_IO_DRAIN (1U << IOSQE_IO_DRAIN_BIT)
	#define IOSQE_IO_LINK (1U << IOSQE_IO_LINK_BIT)
	#define IOSQE_IO_HARDLINK (1U << IOSQE_IO_HARDLINK_BIT)
	#define IOSQE_ASYNC (1U << IOSQE_ASYNC_BIT)
	#define IOSQE_BUFFER_SELECT (1U << IOSQE_BUFFER_SELECT_BIT)
	#define IOSQE_CQE_SKIP_SUCCESS (1U << IOSQE_CQE_SKIP_SUCCESS_BIT)
	#define IORING_SETUP_IOPOLL (1U << 0)
	#define IORING_SETUP_SQPOLL (1U << 1)
	#define IORING_SETUP_SQ_AFF (1U << 2)
	#define IORING_SETUP_CQSIZE (1U << 3)
	#define IORING_SETUP_CLAMP (1U << 4)
	#define IORING_SETUP_ATTACH_WQ (1U << 5)
	#define IORING_SETUP_R_DISABLED (1U << 6)
	#define IORING_SETUP_SUBMIT_ALL (1U << 7)
	#define IORING_SETUP_COOP_TASKRUN (1U << 8)
	#define IORING_SETUP_TASKRUN_FLAG (1U << 9)
	#define IORING_SETUP_SQE128 (1U << 10)
	#define IORING_SETUP_CQE32 (1U << 11)
	#define IORING_SETUP_SINGLE_ISSUER (1U << 12)
	#define IORING_SETUP_DEFER_TASKRUN (1U << 13)
	#define IORING_SETUP_NO_MMAP (1U << 14)
	#define IORING_SETUP_REGISTERED_FD_ONLY (1U << 15)
	#define IORING_SETUP_NO_SQARRAY (1U << 16)
	enum io_uring_op {
	IORING_OP_NOP,
	IORING_OP_READV,
	IORING_OP_WRITEV,
	IORING_OP_FSYNC,
	IORING_OP_READ_FIXED,
	IORING_OP_WRITE_FIXED,
	IORING_OP_POLL_ADD,
	IORING_OP_POLL_REMOVE,
	IORING_OP_SYNC_FILE_RANGE,
	IORING_OP_SENDMSG,
	IORING_OP_RECVMSG,
	IORING_OP_TIMEOUT,
	IORING_OP_TIMEOUT_REMOVE,
	IORING_OP_ACCEPT,
	IORING_OP_ASYNC_CANCEL,
	IORING_OP_LINK_TIMEOUT,
	IORING_OP_CONNECT,
	IORING_OP_FALLOCATE,
	IORING_OP_OPENAT,
	IORING_OP_CLOSE,
	IORING_OP_FILES_UPDATE,
	IORING_OP_STATX,
	IORING_OP_READ,
	IORING_OP_WRITE,
	IORING_OP_FADVISE,
	IORING_OP_MADVISE,
	IORING_OP_SEND,
	IORING_OP_RECV,
	IORING_OP_OPENAT2,
	IORING_OP_EPOLL_CTL,
	IORING_OP_SPLICE,
	IORING_OP_PROVIDE_BUFFERS,
	IORING_OP_REMOVE_BUFFERS,
	IORING_OP_TEE,
	IORING_OP_SHUTDOWN,
	IORING_OP_RENAMEAT,
	IORING_OP_UNLINKAT,
	IORING_OP_MKDIRAT,
	IORING_OP_SYMLINKAT,
	IORING_OP_LINKAT,
	IORING_OP_MSG_RING,
	IORING_OP_FSETXATTR,
	IORING_OP_SETXATTR,
	IORING_OP_FGETXATTR,
	IORING_OP_GETXATTR,
	IORING_OP_SOCKET,
	IORING_OP_URING_CMD,
	IORING_OP_SEND_ZC,
	IORING_OP_SENDMSG_ZC,
	IORING_OP_LAST,
	};
	#define IORING_URING_CMD_FIXED (1U << 0)
	#define IORING_URING_CMD_POLLED (1U << 31)
	#define IORING_FSYNC_DATASYNC (1U << 0)
	#define IORING_TIMEOUT_ABS (1U << 0)
	#define IORING_TIMEOUT_UPDATE (1U << 1)
	#define IORING_TIMEOUT_BOOTTIME (1U << 2)
	#define IORING_TIMEOUT_REALTIME (1U << 3)
	#define IORING_LINK_TIMEOUT_UPDATE (1U << 4)
	#define IORING_TIMEOUT_ETIME_SUCCESS (1U << 5)
	#define IORING_TIMEOUT_MULTISHOT (1U << 6)
	#define IORING_TIMEOUT_CLOCK_MASK (IORING_TIMEOUT_BOOTTIME \| IORING_TIMEOUT_REALTIME)
	#define IORING_TIMEOUT_UPDATE_MASK (IORING_TIMEOUT_UPDATE \| IORING_LINK_TIMEOUT_UPDATE)
	#define SPLICE_F_FD_IN_FIXED (1U << 31)
	#define IORING_POLL_ADD_MULTI (1U << 0)
	#define IORING_POLL_UPDATE_EVENTS (1U << 1)
	#define IORING_POLL_UPDATE_USER_DATA (1U << 2)
	#define IORING_POLL_ADD_LEVEL (1U << 3)
	#define IORING_ASYNC_CANCEL_ALL (1U << 0)
	#define IORING_ASYNC_CANCEL_FD (1U << 1)
	#define IORING_ASYNC_CANCEL_ANY (1U << 2)
	#define IORING_ASYNC_CANCEL_FD_FIXED (1U << 3)
	#define IORING_ASYNC_CANCEL_USERDATA (1U << 4)
	#define IORING_ASYNC_CANCEL_OP (1U << 5)
	#define IORING_RECVSEND_POLL_FIRST (1U << 0)
	#define IORING_RECV_MULTISHOT (1U << 1)
	#define IORING_RECVSEND_FIXED_BUF (1U << 2)
	#define IORING_SEND_ZC_REPORT_USAGE (1U << 3)
	#define IORING_NOTIF_USAGE_ZC_COPIED (1U << 31)
	#define IORING_ACCEPT_MULTISHOT (1U << 0)
	enum {
	IORING_MSG_DATA,
	IORING_MSG_SEND_FD,
	};
	#define IORING_MSG_RING_CQE_SKIP (1U << 0)
	#define IORING_MSG_RING_FLAGS_PASS (1U << 1)
	struct io_uring_cqe {
	__u64 user_data;
	__s32 res;
	__u32 flags;
	__u64 big_cqe[];
	};
	#define IORING_CQE_F_BUFFER (1U << 0)
	#define IORING_CQE_F_MORE (1U << 1)
	#define IORING_CQE_F_SOCK_NONEMPTY (1U << 2)
	#define IORING_CQE_F_NOTIF (1U << 3)
	enum {
	IORING_CQE_BUFFER_SHIFT = 16,
	};
	#define IORING_OFF_SQ_RING 0ULL
	#define IORING_OFF_CQ_RING 0x8000000ULL
	#define IORING_OFF_SQES 0x10000000ULL
	#define IORING_OFF_PBUF_RING 0x80000000ULL
	#define IORING_OFF_PBUF_SHIFT 16
	#define IORING_OFF_MMAP_MASK 0xf8000000ULL
	struct io_sqring_offsets {
	__u32 head;
	__u32 tail;
	__u32 ring_mask;
	__u32 ring_entries;
	__u32 flags;
	__u32 dropped;
	__u32 array;
	__u32 resv1;
	__u64 user_addr;
	};
	#define IORING_SQ_NEED_WAKEUP (1U << 0)
	#define IORING_SQ_CQ_OVERFLOW (1U << 1)
	#define IORING_SQ_TASKRUN (1U << 2)
	struct io_cqring_offsets {
	__u32 head;
	__u32 tail;
	__u32 ring_mask;
	__u32 ring_entries;
	__u32 overflow;
	__u32 cqes;
	__u32 flags;
	__u32 resv1;
	__u64 user_addr;
	};
	#define IORING_CQ_EVENTFD_DISABLED (1U << 0)
	#define IORING_ENTER_GETEVENTS (1U << 0)
	#define IORING_ENTER_SQ_WAKEUP (1U << 1)
	#define IORING_ENTER_SQ_WAIT (1U << 2)
	#define IORING_ENTER_EXT_ARG (1U << 3)
	#define IORING_ENTER_REGISTERED_RING (1U << 4)
	struct io_uring_params {
	__u32 sq_entries;
	__u32 cq_entries;
	__u32 flags;
	__u32 sq_thread_cpu;
	__u32 sq_thread_idle;
	__u32 features;
	__u32 wq_fd;
	__u32 resv[3];
	struct io_sqring_offsets sq_off;
	struct io_cqring_offsets cq_off;
	};
	#define IORING_FEAT_SINGLE_MMAP (1U << 0)
	#define IORING_FEAT_NODROP (1U << 1)
	#define IORING_FEAT_SUBMIT_STABLE (1U << 2)
	#define IORING_FEAT_RW_CUR_POS (1U << 3)
	#define IORING_FEAT_CUR_PERSONALITY (1U << 4)
	#define IORING_FEAT_FAST_POLL (1U << 5)
	#define IORING_FEAT_POLL_32BITS (1U << 6)
	#define IORING_FEAT_SQPOLL_NONFIXED (1U << 7)
	#define IORING_FEAT_EXT_ARG (1U << 8)
	#define IORING_FEAT_NATIVE_WORKERS (1U << 9)
	#define IORING_FEAT_RSRC_TAGS (1U << 10)
	#define IORING_FEAT_CQE_SKIP (1U << 11)
	#define IORING_FEAT_LINKED_FILE (1U << 12)
	#define IORING_FEAT_REG_REG_RING (1U << 13)
	enum {
	IORING_REGISTER_BUFFERS = 0,
	IORING_UNREGISTER_BUFFERS = 1,
	IORING_REGISTER_FILES = 2,
	IORING_UNREGISTER_FILES = 3,
	IORING_REGISTER_EVENTFD = 4,
	IORING_UNREGISTER_EVENTFD = 5,
	IORING_REGISTER_FILES_UPDATE = 6,
	IORING_REGISTER_EVENTFD_ASYNC = 7,
	IORING_REGISTER_PROBE = 8,
	IORING_REGISTER_PERSONALITY = 9,
	IORING_UNREGISTER_PERSONALITY = 10,
	IORING_REGISTER_RESTRICTIONS = 11,
	IORING_REGISTER_ENABLE_RINGS = 12,
	IORING_REGISTER_FILES2 = 13,
	IORING_REGISTER_FILES_UPDATE2 = 14,
	IORING_REGISTER_BUFFERS2 = 15,
	IORING_REGISTER_BUFFERS_UPDATE = 16,
	IORING_REGISTER_IOWQ_AFF = 17,
	IORING_UNREGISTER_IOWQ_AFF = 18,
	IORING_REGISTER_IOWQ_MAX_WORKERS = 19,
	IORING_REGISTER_RING_FDS = 20,
	IORING_UNREGISTER_RING_FDS = 21,
	IORING_REGISTER_PBUF_RING = 22,
	IORING_UNREGISTER_PBUF_RING = 23,
	IORING_REGISTER_SYNC_CANCEL = 24,
	IORING_REGISTER_FILE_ALLOC_RANGE = 25,
	IORING_REGISTER_LAST,
	IORING_REGISTER_USE_REGISTERED_RING = 1U << 31
	};
	enum {
	IO_WQ_BOUND,
	IO_WQ_UNBOUND,
	};
	struct io_uring_files_update {
	__u32 offset;
	__u32 resv;
	__aligned_u64 fds;
	};
	#define IORING_RSRC_REGISTER_SPARSE (1U << 0)
	struct io_uring_rsrc_register {
	__u32 nr;
	__u32 flags;
	__u64 resv2;
	__aligned_u64 data;
	__aligned_u64 tags;
	};
	struct io_uring_rsrc_update {
	__u32 offset;
	__u32 resv;
	__aligned_u64 data;
	};
	struct io_uring_rsrc_update2 {
	__u32 offset;
	__u32 resv;
	__aligned_u64 data;
	__aligned_u64 tags;
	__u32 nr;
	__u32 resv2;
	};
	#define IORING_REGISTER_FILES_SKIP (- 2)
	#define IO_URING_OP_SUPPORTED (1U << 0)
	struct io_uring_probe_op {
	__u8 op;
	__u8 resv;
	__u16 flags;
	__u32 resv2;
	};
	struct io_uring_probe {
	__u8 last_op;
	__u8 ops_len;
	__u16 resv;
	__u32 resv2[3];
	struct io_uring_probe_op ops[];
	};
	struct io_uring_restriction {
	__u16 opcode;
	union {
	__u8 register_op;
	__u8 sqe_op;
	__u8 sqe_flags;
	};
	__u8 resv;
	__u32 resv2[3];
	};
	struct io_uring_buf {
	__u64 addr;
	__u32 len;
	__u16 bid;
	__u16 resv;
	};
	struct io_uring_buf_ring {
	union {
	struct {
	__u64 resv1;
	__u32 resv2;
	__u16 resv3;
	__u16 tail;
	};
	__DECLARE_FLEX_ARRAY(struct io_uring_buf, bufs);
	};
	};
	enum {
	IOU_PBUF_RING_MMAP = 1,
	};
	struct io_uring_buf_reg {
	__u64 ring_addr;
	__u32 ring_entries;
	__u16 bgid;
	__u16 flags;
	__u64 resv[3];
	};
	enum {
	IORING_RESTRICTION_REGISTER_OP = 0,
	IORING_RESTRICTION_SQE_OP = 1,
	IORING_RESTRICTION_SQE_FLAGS_ALLOWED = 2,
	IORING_RESTRICTION_SQE_FLAGS_REQUIRED = 3,
	IORING_RESTRICTION_LAST
	};
	struct io_uring_getevents_arg {
	__u64 sigmask;
	__u32 sigmask_sz;
	__u32 pad;
	__u64 ts;
	};
	struct io_uring_sync_cancel_reg {
	__u64 addr;
	__s32 fd;
	__u32 flags;
	struct __kernel_timespec timeout;
	__u8 opcode;
	__u8 pad[7];
	__u64 pad2[3];
	};
	struct io_uring_file_index_range {
	__u32 off;
	__u32 len;
	__u64 resv;
	};
	struct io_uring_recvmsg_out {
	__u32 namelen;
	__u32 controllen;
	__u32 payloadlen;
	__u32 flags;
	};
	enum {
	SOCKET_URING_OP_SIOCINQ = 0,
	SOCKET_URING_OP_SIOCOUTQ,
	};
	#ifdef __cplusplus
	}
	#endif
	#endif