+/*----------------------------------------------------------------------*/
+
+/* Domain events */
+
+CAMLprim value
+ocaml_libvirt_event_register_default_impl (value unitv)
+{
+ CAMLparam1 (unitv);
+
+ /* arg is of type unit = void */
+ int r;
+
+ NONBLOCKING (r = virEventRegisterDefaultImpl ());
+ /* must be called before connection, therefore we can't use CHECK_ERROR */
+ if (r == -1) caml_failwith("virEventRegisterDefaultImpl");
+
+ CAMLreturn (Val_unit);
+}
+
+CAMLprim value
+ocaml_libvirt_event_run_default_impl (value unitv)
+{
+ CAMLparam1 (unitv);
+
+ /* arg is of type unit = void */
+ int r;
+
+ NONBLOCKING (r = virEventRunDefaultImpl ());
+ if (r == -1) caml_failwith("virEventRunDefaultImpl");
+
+ CAMLreturn (Val_unit);
+}
+
+/* We register a single C callback function for every distinct
+ callback signature. We encode the signature itself in the function
+ name and also in the name of the assocated OCaml callback
+ e.g.:
+ a C function called
+ i_i64_s_callback(virConnectPtr conn,
+ virDomainPtr dom,
+ int x,
+ long y,
+ char *z,
+ void *opaque)
+ would correspond to an OCaml callback
+ Libvirt.i_i64_s_callback :
+ int64 -> [`R] Domain.t -> int -> int64 -> string option -> unit
+ where the initial int64 is a unique ID used by the OCaml to
+ dispatch to the specific OCaml closure and stored by libvirt
+ as the "opaque" data. */
+
+/* Every one of the callbacks starts with a DOMAIN_CALLBACK_BEGIN(NAME)
+ where NAME is the string name of the OCaml callback registered
+ in libvirt.ml. */
+#define DOMAIN_CALLBACK_BEGIN(NAME) \
+ value connv, domv, callback_id, result; \
+ connv = domv = callback_id = result = Val_int(0); \
+ static value *callback = NULL; \
+ caml_leave_blocking_section(); \
+ if (callback == NULL) \
+ callback = caml_named_value(NAME); \
+ if (callback == NULL) \
+ abort(); /* C code out of sync with OCaml code */ \
+ if ((virDomainRef(dom) == -1) || (virConnectRef(conn) == -1)) \
+ abort(); /* should never happen in practice? */ \
+ \
+ Begin_roots4(connv, domv, callback_id, result); \
+ connv = Val_connect(conn); \
+ domv = Val_domain(dom, connv); \
+ callback_id = caml_copy_int64(*(long *)opaque);
+
+/* Every one of the callbacks ends with a CALLBACK_END */
+#define DOMAIN_CALLBACK_END \
+ (void) caml_callback3(*callback, callback_id, domv, result); \
+ End_roots(); \
+ caml_enter_blocking_section();
+
+
+static void
+i_i_callback(virConnectPtr conn,
+ virDomainPtr dom,
+ int x,
+ int y,
+ void * opaque)
+{
+ DOMAIN_CALLBACK_BEGIN("Libvirt.i_i_callback")
+ result = caml_alloc_tuple(2);
+ Store_field(result, 0, Val_int(x));
+ Store_field(result, 1, Val_int(y));
+ DOMAIN_CALLBACK_END
+}
+
+static void
+u_callback(virConnectPtr conn,
+ virDomainPtr dom,
+ void *opaque)
+{
+ DOMAIN_CALLBACK_BEGIN("Libvirt.u_callback")
+ result = Val_int(0); /* () */
+ DOMAIN_CALLBACK_END
+}
+
+static void
+i64_callback(virConnectPtr conn,
+ virDomainPtr dom,
+ long long int64,
+ void *opaque)
+{
+ DOMAIN_CALLBACK_BEGIN("Libvirt.i64_callback")
+ result = caml_copy_int64(int64);
+ DOMAIN_CALLBACK_END
+}
+
+static void
+i_callback(virConnectPtr conn,
+ virDomainPtr dom,
+ int x,
+ void *opaque)
+{
+ DOMAIN_CALLBACK_BEGIN("Libvirt.i_callback")
+ result = Val_int(x);
+ DOMAIN_CALLBACK_END
+}
+
+static void
+s_i_callback(virConnectPtr conn,
+ virDomainPtr dom,
+ char *x,
+ int y,
+ void * opaque)
+{
+ DOMAIN_CALLBACK_BEGIN("Libvirt.s_i_callback")
+ result = caml_alloc_tuple(2);
+ Store_field(result, 0,
+ Val_opt(x, (Val_ptr_t) caml_copy_string));
+ Store_field(result, 1, Val_int(y));
+ DOMAIN_CALLBACK_END
+}
+
+static void
+s_i_i_callback(virConnectPtr conn,
+ virDomainPtr dom,
+ char *x,
+ int y,
+ int z,
+ void * opaque)
+{
+ DOMAIN_CALLBACK_BEGIN("Libvirt.s_i_i_callback")
+ result = caml_alloc_tuple(3);
+ Store_field(result, 0,
+ Val_opt(x, (Val_ptr_t) caml_copy_string));
+ Store_field(result, 1, Val_int(y));
+ Store_field(result, 2, Val_int(z));
+ DOMAIN_CALLBACK_END
+}
+
+static void
+s_s_i_callback(virConnectPtr conn,
+ virDomainPtr dom,
+ char *x,
+ char *y,
+ int z,
+ void *opaque)
+{
+ DOMAIN_CALLBACK_BEGIN("Libvirt.s_s_i_callback")
+ result = caml_alloc_tuple(3);
+ Store_field(result, 0,
+ Val_opt(x, (Val_ptr_t) caml_copy_string));
+ Store_field(result, 1,
+ Val_opt(y, (Val_ptr_t) caml_copy_string));
+ Store_field(result, 2, Val_int(z));
+ DOMAIN_CALLBACK_END
+}
+
+static void
+s_s_i_s_callback(virConnectPtr conn,
+ virDomainPtr dom,
+ char *x,
+ char *y,
+ int z,
+ char *a,
+ void *opaque)
+{
+ DOMAIN_CALLBACK_BEGIN("Libvirt.s_s_i_s_callback")
+ result = caml_alloc_tuple(4);
+ Store_field(result, 0,
+ Val_opt(x, (Val_ptr_t) caml_copy_string));
+ Store_field(result, 1,
+ Val_opt(y, (Val_ptr_t) caml_copy_string));
+ Store_field(result, 2, Val_int(z));
+ Store_field(result, 3,
+ Val_opt(a, (Val_ptr_t) caml_copy_string));
+ DOMAIN_CALLBACK_END
+}
+
+static void
+s_s_s_i_callback(virConnectPtr conn,
+ virDomainPtr dom,
+ char * x,
+ char * y,
+ char * z,
+ int a,
+ void * opaque)
+{
+ DOMAIN_CALLBACK_BEGIN("Libvirt.s_s_s_i_callback")
+ result = caml_alloc_tuple(4);
+ Store_field(result, 0,
+ Val_opt(x, (Val_ptr_t) caml_copy_string));
+ Store_field(result, 1,
+ Val_opt(y, (Val_ptr_t) caml_copy_string));
+ Store_field(result, 2,
+ Val_opt(z, (Val_ptr_t) caml_copy_string));
+ Store_field(result, 3, Val_int(a));
+ DOMAIN_CALLBACK_END
+}
+
+static value
+Val_event_graphics_address(virDomainEventGraphicsAddressPtr x)
+{
+ CAMLparam0 ();
+ CAMLlocal1(result);
+ result = caml_alloc_tuple(3);
+ Store_field(result, 0, Val_int(x->family));
+ Store_field(result, 1,
+ Val_opt((void *) x->node, (Val_ptr_t) caml_copy_string));
+ Store_field(result, 2,
+ Val_opt((void *) x->service, (Val_ptr_t) caml_copy_string));
+ CAMLreturn(result);
+}
+
+static value
+Val_event_graphics_subject_identity(virDomainEventGraphicsSubjectIdentityPtr x)
+{
+ CAMLparam0 ();
+ CAMLlocal1(result);
+ result = caml_alloc_tuple(2);
+ Store_field(result, 0,
+ Val_opt((void *) x->type, (Val_ptr_t) caml_copy_string));
+ Store_field(result, 1,
+ Val_opt((void *) x->name, (Val_ptr_t) caml_copy_string));
+ CAMLreturn(result);
+
+}
+
+static value
+Val_event_graphics_subject(virDomainEventGraphicsSubjectPtr x)
+{
+ CAMLparam0 ();
+ CAMLlocal1(result);
+ int i;
+ result = caml_alloc_tuple(x->nidentity);
+ for (i = 0; i < x->nidentity; i++ )
+ Store_field(result, i,
+ Val_event_graphics_subject_identity(x->identities + i));
+ CAMLreturn(result);
+}
+
+static void
+i_ga_ga_s_gs_callback(virConnectPtr conn,
+ virDomainPtr dom,
+ int i1,
+ virDomainEventGraphicsAddressPtr ga1,
+ virDomainEventGraphicsAddressPtr ga2,
+ char *s1,
+ virDomainEventGraphicsSubjectPtr gs1,
+ void * opaque)
+{
+ DOMAIN_CALLBACK_BEGIN("Libvirt.i_ga_ga_s_gs_callback")
+ result = caml_alloc_tuple(5);
+ Store_field(result, 0, Val_int(i1));
+ Store_field(result, 1, Val_event_graphics_address(ga1));
+ Store_field(result, 2, Val_event_graphics_address(ga2));
+ Store_field(result, 3,
+ Val_opt(s1, (Val_ptr_t) caml_copy_string));
+ Store_field(result, 4, Val_event_graphics_subject(gs1));
+ DOMAIN_CALLBACK_END
+}
+
+static void
+timeout_callback(int timer, void *opaque)
+{
+ value callback_id, result;
+ callback_id = result = Val_int(0);
+ static value *callback = NULL;
+ caml_leave_blocking_section();
+ if (callback == NULL)
+ callback = caml_named_value("Libvirt.timeout_callback");
+ if (callback == NULL)
+ abort(); /* C code out of sync with OCaml code */
+
+ Begin_roots2(callback_id, result);
+ callback_id = caml_copy_int64(*(long *)opaque);
+
+ (void)caml_callback_exn(*callback, callback_id);
+ End_roots();
+ caml_enter_blocking_section();
+}
+
+CAMLprim value
+ocaml_libvirt_event_add_timeout (value connv, value ms, value callback_id)
+{
+ CAMLparam3 (connv, ms, callback_id);
+ void *opaque;
+ virFreeCallback freecb = free;
+ virEventTimeoutCallback cb = timeout_callback;
+
+ int r;
+
+ /* Store the int64 callback_id as the opaque data so the OCaml
+ callback can demultiplex to the correct OCaml handler. */
+ if ((opaque = malloc(sizeof(long))) == NULL)
+ caml_failwith ("virEventAddTimeout: malloc");
+ *((long*)opaque) = Int64_val(callback_id);
+ NONBLOCKING(r = virEventAddTimeout(Int_val(ms), cb, opaque, freecb));
+ CHECK_ERROR(r == -1, "virEventAddTimeout");
+
+ CAMLreturn(Val_int(r));
+}
+
+CAMLprim value
+ocaml_libvirt_event_remove_timeout (value connv, value timer_id)
+{
+ CAMLparam2 (connv, timer_id);
+ int r;
+
+ NONBLOCKING(r = virEventRemoveTimeout(Int_val(timer_id)));
+ CHECK_ERROR(r == -1, "virEventRemoveTimeout");
+
+ CAMLreturn(Val_int(r));
+}
+
+CAMLprim value
+ocaml_libvirt_connect_domain_event_register_any(value connv, value domv, value callback, value callback_id)
+{
+ CAMLparam4(connv, domv, callback, callback_id);
+
+ virConnectPtr conn = Connect_val (connv);
+ virDomainPtr dom = NULL;
+ int eventID = Tag_val(callback);
+
+ virConnectDomainEventGenericCallback cb;
+ void *opaque;
+ virFreeCallback freecb = free;
+ int r;
+
+ if (domv != Val_int(0))
+ dom = Domain_val (Field(domv, 0));
+
+ switch (eventID){
+ case VIR_DOMAIN_EVENT_ID_LIFECYCLE:
+ cb = VIR_DOMAIN_EVENT_CALLBACK(i_i_callback);
+ break;
+ case VIR_DOMAIN_EVENT_ID_REBOOT:
+ cb = VIR_DOMAIN_EVENT_CALLBACK(u_callback);
+ break;
+ case VIR_DOMAIN_EVENT_ID_RTC_CHANGE:
+ cb = VIR_DOMAIN_EVENT_CALLBACK(i64_callback);
+ break;
+ case VIR_DOMAIN_EVENT_ID_WATCHDOG:
+ cb = VIR_DOMAIN_EVENT_CALLBACK(i_callback);
+ break;
+ case VIR_DOMAIN_EVENT_ID_IO_ERROR:
+ cb = VIR_DOMAIN_EVENT_CALLBACK(s_s_i_callback);
+ break;
+ case VIR_DOMAIN_EVENT_ID_GRAPHICS:
+ cb = VIR_DOMAIN_EVENT_CALLBACK(i_ga_ga_s_gs_callback);
+ break;
+ case VIR_DOMAIN_EVENT_ID_IO_ERROR_REASON:
+ cb = VIR_DOMAIN_EVENT_CALLBACK(s_s_i_s_callback);
+ break;
+ case VIR_DOMAIN_EVENT_ID_CONTROL_ERROR:
+ cb = VIR_DOMAIN_EVENT_CALLBACK(u_callback);
+ break;
+ case VIR_DOMAIN_EVENT_ID_BLOCK_JOB:
+ cb = VIR_DOMAIN_EVENT_CALLBACK(s_i_i_callback);
+ break;
+ case VIR_DOMAIN_EVENT_ID_DISK_CHANGE:
+ cb = VIR_DOMAIN_EVENT_CALLBACK(s_s_s_i_callback);
+ break;
+ case VIR_DOMAIN_EVENT_ID_TRAY_CHANGE:
+ cb = VIR_DOMAIN_EVENT_CALLBACK(s_i_callback);
+ break;
+ case VIR_DOMAIN_EVENT_ID_PMWAKEUP:
+ cb = VIR_DOMAIN_EVENT_CALLBACK(i_callback);
+ break;
+ case VIR_DOMAIN_EVENT_ID_PMSUSPEND:
+ cb = VIR_DOMAIN_EVENT_CALLBACK(i_callback);
+ break;
+ case VIR_DOMAIN_EVENT_ID_BALLOON_CHANGE:
+ cb = VIR_DOMAIN_EVENT_CALLBACK(i64_callback);
+ break;
+ case VIR_DOMAIN_EVENT_ID_PMSUSPEND_DISK:
+ cb = VIR_DOMAIN_EVENT_CALLBACK(i_callback);
+ break;
+ default:
+ caml_failwith("vifConnectDomainEventRegisterAny: unimplemented eventID");
+ }
+
+ /* Store the int64 callback_id as the opaque data so the OCaml
+ callback can demultiplex to the correct OCaml handler. */
+ if ((opaque = malloc(sizeof(long))) == NULL)
+ caml_failwith ("virConnectDomainEventRegisterAny: malloc");
+ *((long*)opaque) = Int64_val(callback_id);
+ NONBLOCKING(r = virConnectDomainEventRegisterAny(conn, dom, eventID, cb, opaque, freecb));
+ CHECK_ERROR(r == -1, "virConnectDomainEventRegisterAny");
+
+ CAMLreturn(Val_int(r));
+}