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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v3 24/28] libxl: ocaml: add VM lifecycle operations
Also, reorganise toplevel OCaml functions into modules of Xenlight.
Signed-off-by: Rob Hoes <rob.hoes@xxxxxxxxxx>
---
tools/ocaml/libs/xl/xenlight.ml.in | 21 +++-
tools/ocaml/libs/xl/xenlight.mli.in | 21 +++-
tools/ocaml/libs/xl/xenlight_stubs.c | 198 ++++++++++++++++++++++++++++++++++
tools/ocaml/test/send_debug_keys.ml | 2 +-
4 files changed, 235 insertions(+), 7 deletions(-)
diff --git a/tools/ocaml/libs/xl/xenlight.ml.in
b/tools/ocaml/libs/xl/xenlight.ml.in
index 9eba5d7..248f62e 100644
--- a/tools/ocaml/libs/xl/xenlight.ml.in
+++ b/tools/ocaml/libs/xl/xenlight.ml.in
@@ -33,9 +33,24 @@ type event =
| POLLHUP (* Device has been disconnected (revents only) *)
| POLLNVAL (* Invalid request: fd not open (revents only). *)
-external send_trigger : ctx -> domid -> trigger -> int -> unit =
"stub_xl_send_trigger"
-external send_sysrq : ctx -> domid -> char -> unit = "stub_xl_send_sysrq"
-external send_debug_keys : ctx -> string -> unit = "stub_xl_send_debug_keys"
+module Domain = struct
+ external create_new : ctx -> Domain_config.t -> ?async:'a -> unit ->
domid = "stub_libxl_domain_create_new"
+ external create_restore : ctx -> Domain_config.t -> Unix.file_descr ->
?async:'a -> unit -> domid = "stub_libxl_domain_create_restore"
+ external shutdown : ctx -> domid -> unit = "stub_libxl_domain_shutdown"
+ external wait_shutdown : ctx -> domid -> unit =
"stub_libxl_domain_wait_shutdown"
+ external reboot : ctx -> domid -> unit = "stub_libxl_domain_reboot"
+ external destroy : ctx -> domid -> ?async:'a -> unit -> unit =
"stub_libxl_domain_destroy"
+ external suspend : ctx -> domid -> Unix.file_descr -> ?async:'a -> unit
-> unit = "stub_libxl_domain_suspend"
+ external pause : ctx -> domid -> unit = "stub_libxl_domain_pause"
+ external unpause : ctx -> domid -> unit = "stub_libxl_domain_unpause"
+
+ external send_trigger : ctx -> domid -> trigger -> int -> unit =
"stub_xl_send_trigger"
+ external send_sysrq : ctx -> domid -> char -> unit =
"stub_xl_send_sysrq"
+end
+
+module Host = struct
+ external send_debug_keys : ctx -> string -> unit =
"stub_xl_send_debug_keys"
+end
module type EVENT_USERS =
sig
diff --git a/tools/ocaml/libs/xl/xenlight.mli.in
b/tools/ocaml/libs/xl/xenlight.mli.in
index 28e0eb2..7cf41e0 100644
--- a/tools/ocaml/libs/xl/xenlight.mli.in
+++ b/tools/ocaml/libs/xl/xenlight.mli.in
@@ -35,9 +35,24 @@ type event =
| POLLHUP (* Device has been disconnected (revents only) *)
| POLLNVAL (* Invalid request: fd not open (revents only). *)
-external send_trigger : ctx -> domid -> trigger -> int -> unit =
"stub_xl_send_trigger"
-external send_sysrq : ctx -> domid -> char -> unit = "stub_xl_send_sysrq"
-external send_debug_keys : ctx -> string -> unit = "stub_xl_send_debug_keys"
+module Domain : sig
+ external create_new : ctx -> Domain_config.t -> ?async:'a -> unit ->
domid = "stub_libxl_domain_create_new"
+ external create_restore : ctx -> Domain_config.t -> Unix.file_descr ->
?async:'a -> unit -> domid = "stub_libxl_domain_create_restore"
+ external shutdown : ctx -> domid -> unit = "stub_libxl_domain_shutdown"
+ external wait_shutdown : ctx -> domid -> unit =
"stub_libxl_domain_wait_shutdown"
+ external reboot : ctx -> domid -> unit = "stub_libxl_domain_reboot"
+ external destroy : ctx -> domid -> ?async:'a -> unit -> unit =
"stub_libxl_domain_destroy"
+ external suspend : ctx -> domid -> Unix.file_descr -> ?async:'a -> unit
-> unit = "stub_libxl_domain_suspend"
+ external pause : ctx -> domid -> unit = "stub_libxl_domain_pause"
+ external unpause : ctx -> domid -> unit = "stub_libxl_domain_unpause"
+
+ external send_trigger : ctx -> domid -> trigger -> int -> unit =
"stub_xl_send_trigger"
+ external send_sysrq : ctx -> domid -> char -> unit =
"stub_xl_send_sysrq"
+end
+
+module Host : sig
+ external send_debug_keys : ctx -> string -> unit =
"stub_xl_send_debug_keys"
+end
module type EVENT_USERS =
sig
diff --git a/tools/ocaml/libs/xl/xenlight_stubs.c
b/tools/ocaml/libs/xl/xenlight_stubs.c
index 1a43864..61f3c90 100644
--- a/tools/ocaml/libs/xl/xenlight_stubs.c
+++ b/tools/ocaml/libs/xl/xenlight_stubs.c
@@ -392,6 +392,204 @@ void async_callback(libxl_ctx *ctx, int rc, void
*for_callback)
caml_callback2(*func, error, (value) for_callback);
}
+static int domain_wait_event(libxl_ctx *ctx, int domid, libxl_event **event_r)
+{
+ int ret;
+ for (;;) {
+ ret = libxl_event_wait(ctx, event_r, LIBXL_EVENTMASK_ALL, 0,0);
+ if (ret) {
+ return ret;
+ }
+ if ((*event_r)->domid != domid) {
+ libxl_event_free(CTX, *event_r);
+ continue;
+ }
+ return ret;
+ }
+}
+
+value stub_libxl_domain_create_new(value ctx, value domain_config, value
async, value unit)
+{
+ CAMLparam4(ctx, async, domain_config, unit);
+ int ret;
+ libxl_domain_config c_dconfig;
+ uint32_t c_domid;
+ libxl_asyncop_how ao_how;
+
+ if (async != Val_none) {
+ ao_how.callback = async_callback;
+ ao_how.u.for_callback = (void *) Some_val(async);
+ }
+
+ libxl_domain_config_init(&c_dconfig);
+ ret = domain_config_val(CTX, &c_dconfig, domain_config);
+ if (ret != 0) {
+ libxl_domain_config_dispose(&c_dconfig);
+ failwith_xl(ret, "domain_create_new");
+ }
+
+ ret = libxl_domain_create_new(CTX, &c_dconfig, &c_domid,
+ async != Val_none ? &ao_how : NULL, NULL);
+
+ libxl_domain_config_dispose(&c_dconfig);
+
+ if (ret != 0)
+ failwith_xl(ret, "domain_create_new");
+
+ CAMLreturn(Val_int(c_domid));
+}
+
+value stub_libxl_domain_create_restore(value ctx, value domain_config, value
restore_fd, value async, value unit)
+{
+ CAMLparam5(ctx, domain_config, restore_fd, async, unit);
+ int ret;
+ libxl_domain_config c_dconfig;
+ uint32_t c_domid;
+ libxl_asyncop_how ao_how;
+
+ if (async != Val_none) {
+ ao_how.callback = async_callback;
+ ao_how.u.for_callback = (void *) Some_val(async);
+ }
+
+ libxl_domain_config_init(&c_dconfig);
+ ret = domain_config_val(CTX, &c_dconfig, domain_config);
+ if (ret != 0) {
+ libxl_domain_config_dispose(&c_dconfig);
+ failwith_xl(ret, "domain_create_restore");
+ }
+
+ ret = libxl_domain_create_restore(CTX, &c_dconfig, &c_domid,
Int_val(restore_fd),
+ async != Val_none ? &ao_how : NULL, NULL);
+
+ libxl_domain_config_dispose(&c_dconfig);
+
+ if (ret != 0)
+ failwith_xl(ret, "domain_create_restore");
+
+ CAMLreturn(Val_int(c_domid));
+}
+
+value stub_libxl_domain_wait_shutdown(value ctx, value domid)
+{
+ CAMLparam2(ctx, domid);
+ int ret;
+ libxl_event *event;
+ libxl_evgen_domain_death *deathw;
+ ret = libxl_evenable_domain_death(CTX, Int_val(domid), 0, &deathw);
+ if (ret)
+ failwith_xl(ret, "domain_wait_shutdown");
+
+ for (;;) {
+ ret = domain_wait_event(CTX, Int_val(domid), &event);
+ if (ret) {
+ libxl_evdisable_domain_death(CTX, deathw);
+ failwith_xl(ret, "domain_wait_shutdown");
+ }
+
+ switch (event->type) {
+ case LIBXL_EVENT_TYPE_DOMAIN_DEATH:
+ goto done;
+ case LIBXL_EVENT_TYPE_DOMAIN_SHUTDOWN:
+ goto done;
+ default:
+ break;
+ }
+ libxl_event_free(CTX, event);
+ }
+done:
+ libxl_event_free(CTX, event);
+ libxl_evdisable_domain_death(CTX, deathw);
+
+ CAMLreturn(Val_unit);
+}
+
+value stub_libxl_domain_shutdown(value ctx, value domid)
+{
+ CAMLparam2(ctx, domid);
+ int ret;
+
+ ret = libxl_domain_shutdown(CTX, Int_val(domid));
+ if (ret != 0)
+ failwith_xl(ret, "domain_shutdown");
+
+ CAMLreturn(Val_unit);
+}
+
+value stub_libxl_domain_reboot(value ctx, value domid)
+{
+ CAMLparam2(ctx, domid);
+ int ret;
+
+ ret = libxl_domain_reboot(CTX, Int_val(domid));
+ if (ret != 0)
+ failwith_xl(ret, "domain_reboot");
+
+ CAMLreturn(Val_unit);
+}
+
+value stub_libxl_domain_destroy(value ctx, value domid, value async, value
unit)
+{
+ CAMLparam4(ctx, domid, async, unit);
+ int ret;
+ libxl_asyncop_how ao_how;
+
+ if (async != Val_none) {
+ ao_how.callback = async_callback;
+ ao_how.u.for_callback = (void *) Some_val(async);
+ }
+
+ ret = libxl_domain_destroy(CTX, Int_val(domid),
+ async != Val_none ? &ao_how : NULL);
+ if (ret != 0)
+ failwith_xl(ret, "domain_destroy");
+
+ CAMLreturn(Val_unit);
+}
+
+value stub_libxl_domain_suspend(value ctx, value domid, value fd, value async,
value unit)
+{
+ CAMLparam5(ctx, domid, fd, async, unit);
+ int ret;
+ libxl_asyncop_how ao_how;
+
+ if (async != Val_none) {
+ ao_how.callback = async_callback;
+ ao_how.u.for_callback = (void *) Some_val(async);
+ }
+
+ ret = libxl_domain_suspend(CTX, Int_val(domid), Int_val(fd), 0,
+ async != Val_none ? &ao_how : NULL);
+ if (ret != 0)
+ failwith_xl(ret, "domain_suspend");
+
+ CAMLreturn(Val_unit);
+}
+
+value stub_libxl_domain_pause(value ctx, value domid)
+{
+ CAMLparam2(ctx, domid);
+ int ret;
+
+ ret = libxl_domain_pause(CTX, Int_val(domid));
+ if (ret != 0)
+ failwith_xl(ret, "domain_pause");
+
+ CAMLreturn(Val_unit);
+}
+
+value stub_libxl_domain_unpause(value ctx, value domid)
+{
+ CAMLparam2(ctx, domid);
+ int ret;
+
+ ret = libxl_domain_unpause(CTX, Int_val(domid));
+ if (ret != 0)
+ failwith_xl(ret, "domain_unpause");
+
+ CAMLreturn(Val_unit);
+}
+
#define _STRINGIFY(x) #x
#define STRINGIFY(x) _STRINGIFY(x)
diff --git a/tools/ocaml/test/send_debug_keys.ml
b/tools/ocaml/test/send_debug_keys.ml
index b9cd61e..2cca322 100644
--- a/tools/ocaml/test/send_debug_keys.ml
+++ b/tools/ocaml/test/send_debug_keys.ml
@@ -4,7 +4,7 @@ open Xenlight
let send_keys ctx s =
printf "Sending debug key %s\n" s;
- Xenlight.send_debug_keys ctx s;
+ Xenlight.Host.send_debug_keys ctx s;
()
let _ =
--
1.7.10.4
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