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Copy io_uring_prep_* to my_uring_prep_* so they do not clear user_data

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This commit is contained in:
Vitaliy Filippov
2019-11-17 21:39:30 +03:00
parent 2f429b17dd
commit c2de733e35
9 changed files with 128 additions and 31 deletions
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ringloop.h
+102 -1
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@@ -10,6 +10,99 @@
#include <functional>
#include <vector>
static inline void my_uring_prep_rw(int op, struct io_uring_sqe *sqe, int fd, const void *addr, unsigned len, off_t offset)
{
sqe->opcode = op;
sqe->flags = 0;
sqe->ioprio = 0;
sqe->fd = fd;
sqe->off = offset;
sqe->addr = (unsigned long) addr;
sqe->len = len;
sqe->rw_flags = 0;
sqe->__pad2[0] = sqe->__pad2[1] = sqe->__pad2[2] = 0;
}
static inline void my_uring_prep_readv(struct io_uring_sqe *sqe, int fd, const struct iovec *iovecs, unsigned nr_vecs, off_t offset)
{
my_uring_prep_rw(IORING_OP_READV, sqe, fd, iovecs, nr_vecs, offset);
}
static inline void my_uring_prep_read_fixed(struct io_uring_sqe *sqe, int fd, void *buf, unsigned nbytes, off_t offset, int buf_index)
{
my_uring_prep_rw(IORING_OP_READ_FIXED, sqe, fd, buf, nbytes, offset);
sqe->buf_index = buf_index;
}
static inline void my_uring_prep_writev(struct io_uring_sqe *sqe, int fd, const struct iovec *iovecs, unsigned nr_vecs, off_t offset)
{
my_uring_prep_rw(IORING_OP_WRITEV, sqe, fd, iovecs, nr_vecs, offset);
}
static inline void my_uring_prep_write_fixed(struct io_uring_sqe *sqe, int fd, const void *buf, unsigned nbytes, off_t offset, int buf_index)
{
my_uring_prep_rw(IORING_OP_WRITE_FIXED, sqe, fd, buf, nbytes, offset);
sqe->buf_index = buf_index;
}
static inline void my_uring_prep_recvmsg(struct io_uring_sqe *sqe, int fd, struct msghdr *msg, unsigned flags)
{
my_uring_prep_rw(IORING_OP_RECVMSG, sqe, fd, msg, 1, 0);
sqe->msg_flags = flags;
}
static inline void my_uring_prep_sendmsg(struct io_uring_sqe *sqe, int fd, const struct msghdr *msg, unsigned flags)
{
my_uring_prep_rw(IORING_OP_SENDMSG, sqe, fd, msg, 1, 0);
sqe->msg_flags = flags;
}
static inline void my_uring_prep_poll_add(struct io_uring_sqe *sqe, int fd, short poll_mask)
{
my_uring_prep_rw(IORING_OP_POLL_ADD, sqe, fd, NULL, 0, 0);
sqe->poll_events = poll_mask;
}
static inline void my_uring_prep_poll_remove(struct io_uring_sqe *sqe, void *user_data)
{
my_uring_prep_rw(IORING_OP_POLL_REMOVE, sqe, 0, user_data, 0, 0);
}
static inline void my_uring_prep_fsync(struct io_uring_sqe *sqe, int fd, unsigned fsync_flags)
{
my_uring_prep_rw(IORING_OP_FSYNC, sqe, fd, NULL, 0, 0);
sqe->fsync_flags = fsync_flags;
}
static inline void my_uring_prep_nop(struct io_uring_sqe *sqe)
{
my_uring_prep_rw(IORING_OP_NOP, sqe, 0, NULL, 0, 0);
}
static inline void my_uring_prep_timeout(struct io_uring_sqe *sqe, struct __kernel_timespec *ts, unsigned count, unsigned flags)
{
my_uring_prep_rw(IORING_OP_TIMEOUT, sqe, 0, ts, 1, count);
sqe->timeout_flags = flags;
}
static inline void my_uring_prep_timeout_remove(struct io_uring_sqe *sqe, __u64 user_data, unsigned flags)
{
my_uring_prep_rw(IORING_OP_TIMEOUT_REMOVE, sqe, 0, (void *)user_data, 0, 0);
sqe->timeout_flags = flags;
}
static inline void my_uring_prep_accept(struct io_uring_sqe *sqe, int fd, struct sockaddr *addr, socklen_t *addrlen, int flags)
{
my_uring_prep_rw(IORING_OP_ACCEPT, sqe, fd, addr, 0, (__u64) addrlen);
sqe->accept_flags = flags;
}
static inline void my_uring_prep_cancel(struct io_uring_sqe *sqe, void *user_data, int flags)
{
my_uring_prep_rw(IORING_OP_ASYNC_CANCEL, sqe, 0, user_data, 0, 0);
sqe->cancel_flags = flags;
}
struct ring_data_t
{
struct iovec iov; // for single-entry read/write operations
@@ -31,7 +124,15 @@ public:
struct io_uring ring;
ring_loop_t(int qd);
~ring_loop_t();
struct io_uring_sqe* get_sqe();
inline struct io_uring_sqe* get_sqe()
{
struct io_uring_sqe* sqe = io_uring_get_sqe(&ring);
if (sqe)
{
io_uring_sqe_set_data(sqe, ring_data + (sqe - ring.sq.sqes));
}
return sqe;
}
int register_consumer(ring_consumer_t & consumer);
void unregister_consumer(int number);
void loop(bool sleep);