The unpac monorepo manager self-hosting as a monorepo using unpac
Merge pull request #103 from avsm/fsync-op
add Uring.fsync and Uring.fdatasync ops
authored by
Anil Madhavapeddy
and committed by
GitHub
c8dbfda2
4a8b98c9
+60
+8
vendor/opam/uring/lib/uring/uring.ml
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vendor/opam/uring/lib/uring/uring.ml
···
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external submit_unlinkat : t -> id -> Unix.file_descr -> Sketch.ptr -> bool -> bool = "ocaml_uring_submit_unlinkat" [@@noalloc]
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external submit_send_msg : t -> id -> Unix.file_descr -> Msghdr.t -> Sketch.ptr -> bool = "ocaml_uring_submit_send_msg" [@@noalloc]
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external submit_recv_msg : t -> id -> Unix.file_descr -> Msghdr.t -> Sketch.ptr -> bool = "ocaml_uring_submit_recv_msg" [@@noalloc]
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external submit_fsync : t -> id -> Unix.file_descr -> int64 -> int -> bool = "ocaml_uring_submit_fsync" [@@noalloc]
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external submit_fdatasync : t -> id -> Unix.file_descr -> int64 -> int -> bool = "ocaml_uring_submit_fdatasync" [@@noalloc]
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type cqe_option = private
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| Cqe_none
···
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with_id_full t (fun id ->
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let iovec = Sketch.Iovec.alloc t.sketch buffers in
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Uring.submit_recv_msg t.uring id fd msghdr iovec) user_data ~extra_data:msghdr
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+
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let fsync t ?(off=0L) ?(len=0) fd user_data =
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with_id t (fun id -> Uring.submit_fsync t.uring id fd off len) user_data
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let fdatasync t ?(off=0L) ?(len=0) fd user_data =
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with_id t (fun id -> Uring.submit_fdatasync t.uring id fd off len) user_data
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let cancel t job user_data =
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ignore (Heap.ptr job : Uring.id); (* Check it's still valid *)
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vendor/opam/uring/lib/uring/uring.mli
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vendor/opam/uring/lib/uring/uring.mli
···
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(** [recv_msg t fd msghdr d] will submit a [recvmsg(2)] request. If the request is
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successful then the [msghdr] will contain the sender address and the data received. *)
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val fsync : 'a t -> ?off:int64 -> ?len:int -> Unix.file_descr -> 'a -> 'a job option
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(** [fsync t ?off ?len fd d] will submit an [fsync(2)] request, with the optional
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offset [off] and length [len] specifying the subset of the file to perform the
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synchronisation on. *)
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val fdatasync : 'a t -> ?off:int64 -> ?len:int -> Unix.file_descr -> 'a -> 'a job option
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(** [fdatasync t ?off ?len fd d] will submit an [fdatasync(2)] request, with the optional
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offset [off] and length [len] specifying the subset of the file to perform the
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synchronisation on. *)
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(** {2 Probing}
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You can check which operations are supported by the running kernel. *)
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vendor/opam/uring/lib/uring/uring_stubs.c
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vendor/opam/uring/lib/uring/uring_stubs.c
···
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}
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value /* noalloc */
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ocaml_uring_submit_fsync(value v_uring, value v_id, value v_fd, value v_off, value v_len)
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{
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struct io_uring *ring = Ring_val(v_uring);
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struct io_uring_sqe *sqe = io_uring_get_sqe(ring);
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if (!sqe) return (Val_false);
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io_uring_prep_fsync(sqe, Int_val(v_fd), 0);
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sqe->off = Int64_val(v_off);
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sqe->len = Int_val(v_len);
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io_uring_sqe_set_data(sqe, (void *)Long_val(v_id));
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return (Val_true);
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}
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value /* noalloc */
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ocaml_uring_submit_fdatasync(value v_uring, value v_id, value v_fd, value v_off, value v_len)
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{
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struct io_uring *ring = Ring_val(v_uring);
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struct io_uring_sqe *sqe = io_uring_get_sqe(ring);
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if (!sqe) return (Val_false);
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io_uring_prep_fsync(sqe, Int_val(v_fd), IORING_FSYNC_DATASYNC);
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sqe->off = Int64_val(v_off);
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sqe->len = Int_val(v_len);
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io_uring_sqe_set_data(sqe, (void *)Long_val(v_id));
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return (Val_true);
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}
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value /* noalloc */
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ocaml_uring_submit_cancel(value v_uring, value v_id, value v_target) {
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struct io_uring *ring = Ring_val(v_uring);
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struct io_uring_sqe *sqe;
+16
vendor/opam/uring/tests/main.md
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vendor/opam/uring/tests/main.md
···
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x.st_kind, Printf.sprintf "0o%o" x.st_perm, x.st_size;;
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- : Unix.file_kind * string * int = (Unix.S_REG, "0o600", 9)
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# Uring.fsync t fd `Create;;
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- : [ `Create ] Uring.job option = Some <abstr>
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# Uring.submit t;;
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- : int = 1
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# let v, read = consume t;;
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val v : [ `Create ] = `Create
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val read : int = 0
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# Uring.fdatasync t ~off:1L ~len:5 fd `Create;;
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- : [ `Create ] Uring.job option = Some <abstr>
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# Uring.submit t;;
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- : int = 1
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# let v, read = consume t;;
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val v : [ `Create ] = `Create
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val read : int = 0
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# let fd : unit = Unix.close fd;;
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val fd : unit = ()
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