search for: can_cache_fn

On Wed, May 15, 2019 at 10:57:58PM -0500, Eric Blake wrote: > +static int > +can_cache_wrapper (void *h) > +{ > + CAMLparam0 (); > + CAMLlocal1 (rv); > + > + caml_leave_blocking_section (); > + > + rv = caml_callback_exn (can_cache_fn, *(value *) h); > + if (Is_exception_result (rv)) { > + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); > + caml_enter_blocking_section (); > + CAMLreturnT (int, -1); > + } > + > + caml_enter_blocking_section (); > + CAMLreturnT (i...

...1 insertions(+), 1 deletion(-) diff --git a/plugins/ocaml/ocaml.c b/plugins/ocaml/ocaml.c index 4447d7f..f664a7f 100644 --- a/plugins/ocaml/ocaml.c +++ b/plugins/ocaml/ocaml.c @@ -128,6 +128,9 @@ static value can_multi_conn_fn; static value can_extents_fn; static value extents_fn; +static value can_cache_fn; +static value cache_fn; + /*----------------------------------------------------------------------*/ /* Wrapper functions that translate calls from C (ie. nbdkit) to OCaml. */ @@ -638,6 +641,48 @@ extents_wrapper (void *h, uint32_t count, uint64_t offset, uint32_t flags, CAMLreturnT (int, 0)...

...plugin), ._api_version = NBDKIT_API_VERSION, + ._thread_model = NBDKIT_THREAD_MODEL_PARALLEL, /* The following field is used as a canary to detect whether the * OCaml code started up and called us back successfully. If it's @@ -131,6 +132,8 @@ static value extents_fn; static value can_cache_fn; static value cache_fn; +static value thread_model_fn; + /*----------------------------------------------------------------------*/ /* Wrapper functions that translate calls from C (ie. nbdkit) to OCaml. */ @@ -683,18 +686,30 @@ cache_wrapper (void *h, uint32_t count, uint64_t offset, uint32_t...

...@@ -123,10 +123,13 @@ static value get_ready_fn; static value after_fork_fn; static value preconnect_fn; +static value list_exports_fn; +static value default_export_fn; static value open_fn; static value close_fn; static value get_size_fn; +static value export_description_fn; static value can_cache_fn; static value can_extents_fn; @@ -311,6 +314,64 @@ preconnect_wrapper (int readonly) CAMLreturnT (int, 0); } +static int +list_exports_wrapper (int readonly, int is_tls, struct nbdkit_exports *exports) +{ + CAMLparam0 (); + CAMLlocal2 (rv, v); + + caml_leave_blocking_section (); + + rv =...

...@@ -123,10 +123,13 @@ static value get_ready_fn; static value after_fork_fn; static value preconnect_fn; +static value list_exports_fn; +static value default_export_fn; static value open_fn; static value close_fn; static value get_size_fn; +static value export_description_fn; static value can_cache_fn; static value can_extents_fn; @@ -311,6 +314,65 @@ preconnect_wrapper (int readonly) CAMLreturnT (int, 0); } +static int +list_exports_wrapper (int readonly, int is_tls, struct nbdkit_exports *exports) +{ + CAMLparam0 (); + CAMLlocal2 (rv, v); + + caml_leave_blocking_section (); + + rv =...

This picks up python and ocaml. Some of our languages are lacking a number of bindings (for example, lua and perl lack .extents, so I didn't have anything to copy from), and I felt less comfortable with golang and rust. But for python and ocaml, I was able to test a working implementation. Eric Blake (2): python: Implement .list_exports and friends ocaml: Implement .list_exports and

Since v1: - rework .can_cache to be tri-state, with default of no advertisement (ripple effect through other patches) - add a lot more patches in order to round out filter support And in the meantime, Rich pushed NBD_CMD_CACHE support into libnbd, so in theory we now have a way to test cache commands through the entire stack. Eric Blake (24): server: Internal hooks for implementing

It's been several weeks since I posted v2 (I got distracted by improving libnbd to better test things, which in turn surfaced some major memory leak problems in nbdsh that are now fixed). Many of the patches are minor rebases from v2, with the biggest changes being fallout from: - patch 2: rename nbdkit_add_default_export to nbdkit_use_default_export - overall: this missed 1.22, so update