io_uring: kill io_uring userspace examples

[sfrench/cifs-2.6.git] / tools / io_uring / liburing.h

diff --git a/tools/io_uring/liburing.h b/tools/io_uring/liburing.h
deleted file mode 100644 (file)
index 28a837b..0000000
--- a/tools/io_uring/liburing.h
+++ /dev/null
@@ -1,187 +0,0 @@
-#ifndef LIB_URING_H
-#define LIB_URING_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <sys/uio.h>
-#include <signal.h>
-#include <string.h>
-#include "../../include/uapi/linux/io_uring.h"
-#include <inttypes.h>
-#include <linux/swab.h>
-#include "barrier.h"
-
-/*
- * Library interface to io_uring
- */
-struct io_uring_sq {
-       unsigned *khead;
-       unsigned *ktail;
-       unsigned *kring_mask;
-       unsigned *kring_entries;
-       unsigned *kflags;
-       unsigned *kdropped;
-       unsigned *array;
-       struct io_uring_sqe *sqes;
-
-       unsigned sqe_head;
-       unsigned sqe_tail;
-
-       size_t ring_sz;
-};
-
-struct io_uring_cq {
-       unsigned *khead;
-       unsigned *ktail;
-       unsigned *kring_mask;
-       unsigned *kring_entries;
-       unsigned *koverflow;
-       struct io_uring_cqe *cqes;
-
-       size_t ring_sz;
-};
-
-struct io_uring {
-       struct io_uring_sq sq;
-       struct io_uring_cq cq;
-       int ring_fd;
-};
-
-/*
- * System calls
- */
-extern int io_uring_setup(unsigned entries, struct io_uring_params *p);
-extern int io_uring_enter(int fd, unsigned to_submit,
-       unsigned min_complete, unsigned flags, sigset_t *sig);
-extern int io_uring_register(int fd, unsigned int opcode, void *arg,
-       unsigned int nr_args);
-
-/*
- * Library interface
- */
-extern int io_uring_queue_init(unsigned entries, struct io_uring *ring,
-       unsigned flags);
-extern int io_uring_queue_mmap(int fd, struct io_uring_params *p,
-       struct io_uring *ring);
-extern void io_uring_queue_exit(struct io_uring *ring);
-extern int io_uring_peek_cqe(struct io_uring *ring,
-       struct io_uring_cqe **cqe_ptr);
-extern int io_uring_wait_cqe(struct io_uring *ring,
-       struct io_uring_cqe **cqe_ptr);
-extern int io_uring_submit(struct io_uring *ring);
-extern struct io_uring_sqe *io_uring_get_sqe(struct io_uring *ring);
-
-/*
- * Must be called after io_uring_{peek,wait}_cqe() after the cqe has
- * been processed by the application.
- */
-static inline void io_uring_cqe_seen(struct io_uring *ring,
-                                    struct io_uring_cqe *cqe)
-{
-       if (cqe) {
-               struct io_uring_cq *cq = &ring->cq;
-
-               (*cq->khead)++;
-               /*
-                * Ensure that the kernel sees our new head, the kernel has
-                * the matching read barrier.
-                */
-               write_barrier();
-       }
-}
-
-/*
- * Command prep helpers
- */
-static inline void io_uring_sqe_set_data(struct io_uring_sqe *sqe, void *data)
-{
-       sqe->user_data = (unsigned long) data;
-}
-
-static inline void *io_uring_cqe_get_data(struct io_uring_cqe *cqe)
-{
-       return (void *) (uintptr_t) cqe->user_data;
-}
-
-static inline void io_uring_prep_rw(int op, struct io_uring_sqe *sqe, int fd,
-                                   const void *addr, unsigned len,
-                                   off_t offset)
-{
-       memset(sqe, 0, sizeof(*sqe));
-       sqe->opcode = op;
-       sqe->fd = fd;
-       sqe->off = offset;
-       sqe->addr = (unsigned long) addr;
-       sqe->len = len;
-}
-
-static inline void io_uring_prep_readv(struct io_uring_sqe *sqe, int fd,
-                                      const struct iovec *iovecs,
-                                      unsigned nr_vecs, off_t offset)
-{
-       io_uring_prep_rw(IORING_OP_READV, sqe, fd, iovecs, nr_vecs, offset);
-}
-
-static inline void io_uring_prep_read_fixed(struct io_uring_sqe *sqe, int fd,
-                                           void *buf, unsigned nbytes,
-                                           off_t offset)
-{
-       io_uring_prep_rw(IORING_OP_READ_FIXED, sqe, fd, buf, nbytes, offset);
-}
-
-static inline void io_uring_prep_writev(struct io_uring_sqe *sqe, int fd,
-                                       const struct iovec *iovecs,
-                                       unsigned nr_vecs, off_t offset)
-{
-       io_uring_prep_rw(IORING_OP_WRITEV, sqe, fd, iovecs, nr_vecs, offset);
-}
-
-static inline void io_uring_prep_write_fixed(struct io_uring_sqe *sqe, int fd,
-                                            const void *buf, unsigned nbytes,
-                                            off_t offset)
-{
-       io_uring_prep_rw(IORING_OP_WRITE_FIXED, sqe, fd, buf, nbytes, offset);
-}
-
-static inline void io_uring_prep_poll_add(struct io_uring_sqe *sqe, int fd,
-                                         unsigned poll_mask)
-{
-       memset(sqe, 0, sizeof(*sqe));
-       sqe->opcode = IORING_OP_POLL_ADD;
-       sqe->fd = fd;
-#if __BYTE_ORDER == __BIG_ENDIAN
-       poll_mask = __swahw32(poll_mask);
-#endif
-       sqe->poll_events = poll_mask;
-}
-
-static inline void io_uring_prep_poll_remove(struct io_uring_sqe *sqe,
-                                            void *user_data)
-{
-       memset(sqe, 0, sizeof(*sqe));
-       sqe->opcode = IORING_OP_POLL_REMOVE;
-       sqe->addr = (unsigned long) user_data;
-}
-
-static inline void io_uring_prep_fsync(struct io_uring_sqe *sqe, int fd,
-                                      unsigned fsync_flags)
-{
-       memset(sqe, 0, sizeof(*sqe));
-       sqe->opcode = IORING_OP_FSYNC;
-       sqe->fd = fd;
-       sqe->fsync_flags = fsync_flags;
-}
-
-static inline void io_uring_prep_nop(struct io_uring_sqe *sqe)
-{
-       memset(sqe, 0, sizeof(*sqe));
-       sqe->opcode = IORING_OP_NOP;
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif