35/45: gnu: Add ocaml-io-page.

[guix-commits]

cbaines pushed a commit to branch master
in repository guix.

commit 1276f9da9a2bce286da6cdda5d1e4d3d1870b3c3
Author: raingloom <raingloom@riseup.net>
AuthorDate: Wed Feb 15 23:00:24 2023 +0100

    gnu: Add ocaml-io-page.
    
    * gnu/packages/ocaml.scm (ocaml-io-page): New variable.
    
    Signed-off-by: Christopher Baines <mail@cbaines.net>
---
 gnu/packages/ocaml.scm | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index 8ea2827ae2..5b915a532a 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -3084,6 +3084,29 @@ The client and the server libraries have sets of 
unit-tests.")
     ;; Has a linking exception, see LICENSE.md.
     (license license:lgpl2.1)))
 
+(define-public ocaml-io-page
+  (package
+    (name "ocaml-io-page")
+    (version "3.0.0")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/mirage/io-page";)
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "0lmvm1whdw5s7rvi7jnjzicrp2j919dkjl856jwyjlq38f7qn0zm"))))
+    (build-system dune-build-system)
+    (propagated-inputs (list ocaml-cstruct))
+    (native-inputs (list pkg-config ocaml-ounit))
+    (home-page "https://github.com/mirage/io-page";)
+    (synopsis "Support for efficient handling of I/O memory pages")
+    (description
+     "IO pages are page-aligned, and wrapped in the @code{Cstruct} library to
+avoid copying the data contained within the page.")
+    (license license:isc)))
+
 (define-public ocaml-luv
   (package
     (name "ocaml-luv")