hook+trace: add a unique timestamp

A same event must have a unique time stamp.

Change-Id: Id33351a97f62c04a84d26995a2cf9ae80613c613
Signed-off-by: José Bollo <jose.bollo@iot.bzh>

3 files changed, 187 insertions, 175 deletions

diff --git a/src/afb-hook.c b/src/afb-hook.c
index daff851c..a07d8426 100644
--- a/src/afb-hook.c
+++ b/src/afb-hook.c
@@ -111,9 +111,10 @@ static unsigned next_hookid = 0;
 /******************************************************************************
  * section: hook id
  *****************************************************************************/
-static inline unsigned new_hookid()
+static void init_hookid(struct afb_hookid *hookid)
 {
-	return __atomic_add_fetch(&next_hookid, 1, __ATOMIC_RELAXED);
+	hookid->id = __atomic_add_fetch(&next_hookid, 1, __ATOMIC_RELAXED);
+	clock_gettime(CLOCK_MONOTONIC, &hookid->time);
 }
 
 /******************************************************************************
@@ -164,7 +165,7 @@ static void _hook_xreq_(const struct afb_xreq *xreq, const char *format, ...)
 	va_end(ap);
 }
 
-static void hook_xreq_begin_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq)
+static void hook_xreq_begin_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq)
 {
 	if (!xreq->cred)
 		_hook_xreq_(xreq, "BEGIN");
@@ -179,92 +180,92 @@ static void hook_xreq_begin_default_cb(void *closure, unsigned hookid, const str
 		);
 }
 
-static void hook_xreq_end_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq)
+static void hook_xreq_end_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq)
 {
 	_hook_xreq_(xreq, "END");
 }
 
-static void hook_xreq_json_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, struct json_object *obj)
+static void hook_xreq_json_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct json_object *obj)
 {
 	_hook_xreq_(xreq, "json() -> %s", json_object_to_json_string(obj));
 }
 
-static void hook_xreq_get_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, const char *name, struct afb_arg arg)
+static void hook_xreq_get_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *name, struct afb_arg arg)
 {
 	_hook_xreq_(xreq, "get(%s) -> { name: %s, value: %s, path: %s }", name, arg.name, arg.value, arg.path);
 }
 
-static void hook_xreq_success_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, struct json_object *obj, const char *info)
+static void hook_xreq_success_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct json_object *obj, const char *info)
 {
 	_hook_xreq_(xreq, "success(%s, %s)", json_object_to_json_string(obj), info);
 }
 
-static void hook_xreq_fail_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, const char *status, const char *info)
+static void hook_xreq_fail_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *status, const char *info)
 {
 	_hook_xreq_(xreq, "fail(%s, %s)", status, info);
 }
 
-static void hook_xreq_context_get_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, void *value)
+static void hook_xreq_context_get_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, void *value)
 {
 	_hook_xreq_(xreq, "context_get() -> %p", value);
 }
 
-static void hook_xreq_context_set_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, void *value, void (*free_value)(void*))
+static void hook_xreq_context_set_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, void *value, void (*free_value)(void*))
 {
 	_hook_xreq_(xreq, "context_set(%p, %p)", value, free_value);
 }
 
-static void hook_xreq_addref_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq)
+static void hook_xreq_addref_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq)
 {
 	_hook_xreq_(xreq, "addref()");
 }
 
-static void hook_xreq_unref_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq)
+static void hook_xreq_unref_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq)
 {
 	_hook_xreq_(xreq, "unref()");
 }
 
-static void hook_xreq_session_close_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq)
+static void hook_xreq_session_close_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq)
 {
 	_hook_xreq_(xreq, "session_close()");
 }
 
-static void hook_xreq_session_set_LOA_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, unsigned level, int result)
+static void hook_xreq_session_set_LOA_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, unsigned level, int result)
 {
 	_hook_xreq_(xreq, "session_set_LOA(%u) -> %d", level, result);
 }
 
-static void hook_xreq_subscribe_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, struct afb_event event, int result)
+static void hook_xreq_subscribe_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct afb_event event, int result)
 {
 	_hook_xreq_(xreq, "subscribe(%s:%d) -> %d", afb_evt_event_name(event), afb_evt_event_id(event), result);
 }
 
-static void hook_xreq_unsubscribe_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, struct afb_event event, int result)
+static void hook_xreq_unsubscribe_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct afb_event event, int result)
 {
 	_hook_xreq_(xreq, "unsubscribe(%s:%d) -> %d", afb_evt_event_name(event), afb_evt_event_id(event), result);
 }
 
-static void hook_xreq_subcall_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args)
+static void hook_xreq_subcall_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args)
 {
 	_hook_xreq_(xreq, "subcall(%s/%s, %s) ...", api, verb, json_object_to_json_string(args));
 }
 
-static void hook_xreq_subcall_result_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, int status, struct json_object *result)
+static void hook_xreq_subcall_result_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, int status, struct json_object *result)
 {
 	_hook_xreq_(xreq, "    ...subcall... -> %d: %s", status, json_object_to_json_string(result));
 }
 
-static void hook_xreq_subcallsync_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args)
+static void hook_xreq_subcallsync_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args)
 {
 	_hook_xreq_(xreq, "subcallsync(%s/%s, %s) ...", api, verb, json_object_to_json_string(args));
 }
 
-static void hook_xreq_subcallsync_result_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, int status, struct json_object *result)
+static void hook_xreq_subcallsync_result_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, int status, struct json_object *result)
 {
 	_hook_xreq_(xreq, "    ...subcallsync... -> %d: %s", status, json_object_to_json_string(result));
 }
 
-static void hook_xreq_vverbose_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, int level, const char *file, int line, const char *func, const char *fmt, va_list args)
+static void hook_xreq_vverbose_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, int level, const char *file, int line, const char *func, const char *fmt, va_list args)
 {
 	int len;
 	char *msg;
@@ -282,22 +283,22 @@ static void hook_xreq_vverbose_default_cb(void *closure, unsigned hookid, const
 	}
 }
 
-static void hook_xreq_store_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, struct afb_stored_req *sreq)
+static void hook_xreq_store_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct afb_stored_req *sreq)
 {
 	_hook_xreq_(xreq, "store() -> %p", sreq);
 }
 
-static void hook_xreq_unstore_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq)
+static void hook_xreq_unstore_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq)
 {
 	_hook_xreq_(xreq, "unstore()");
 }
 
-static void hook_xreq_subcall_req_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args)
+static void hook_xreq_subcall_req_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args)
 {
 	_hook_xreq_(xreq, "subcall_req(%s/%s, %s) ...", api, verb, json_object_to_json_string(args));
 }
 
-static void hook_xreq_subcall_req_result_default_cb(void *closure, unsigned hookid, const struct afb_xreq *xreq, int status, struct json_object *result)
+static void hook_xreq_subcall_req_result_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, int status, struct json_object *result)
 {
 	_hook_xreq_(xreq, "    ...subcall_req... -> %d: %s", status, json_object_to_json_string(result));
 }
@@ -334,8 +335,9 @@ static struct afb_hook_xreq_itf hook_xreq_default_itf = {
 
 #define _HOOK_XREQ_(what,...)   \
 	struct afb_hook_xreq *hook; \
-	unsigned hookid = new_hookid(); \
+	struct afb_hookid hookid; \
 	pthread_rwlock_rdlock(&rwlock); \
+	init_hookid(&hookid); \
 	hook = list_of_xreq_hooks; \
 	while (hook) { \
 		if (hook->itf->hook_xreq_##what \
@@ -343,7 +345,7 @@ static struct afb_hook_xreq_itf hook_xreq_default_itf = {
 		 && (!hook->session || hook->session == xreq->context.session) \
 		 && (!hook->api || !strcasecmp(hook->api, xreq->api)) \
 		 && (!hook->verb || !strcasecmp(hook->verb, xreq->verb))) { \
-			hook->itf->hook_xreq_##what(hook->closure, hookid, __VA_ARGS__); \
+			hook->itf->hook_xreq_##what(hook->closure, &hookid, __VA_ARGS__); \
 		} \
 		hook = hook->next; \
 	} \
@@ -597,32 +599,32 @@ static void _hook_ditf_(const struct afb_ditf *ditf, const char *format, ...)
 	va_end(ap);
 }
 
-static void hook_ditf_event_broadcast_before_cb(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *name, struct json_object *object)
+static void hook_ditf_event_broadcast_before_cb(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *name, struct json_object *object)
 {
 	_hook_ditf_(ditf, "event_broadcast.before(%s, %s)....", name, json_object_to_json_string(object));
 }
 
-static void hook_ditf_event_broadcast_after_cb(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *name, struct json_object *object, int result)
+static void hook_ditf_event_broadcast_after_cb(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *name, struct json_object *object, int result)
 {
 	_hook_ditf_(ditf, "event_broadcast.after(%s, %s) -> %d", name, json_object_to_json_string(object), result);
 }
 
-static void hook_ditf_get_event_loop_cb(void *closure, unsigned hookid, const struct afb_ditf *ditf, struct sd_event *result)
+static void hook_ditf_get_event_loop_cb(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, struct sd_event *result)
 {
 	_hook_ditf_(ditf, "get_event_loop() -> %p", result);
 }
 
-static void hook_ditf_get_user_bus_cb(void *closure, unsigned hookid, const struct afb_ditf *ditf, struct sd_bus *result)
+static void hook_ditf_get_user_bus_cb(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, struct sd_bus *result)
 {
 	_hook_ditf_(ditf, "get_user_bus() -> %p", result);
 }
 
-static void hook_ditf_get_system_bus_cb(void *closure, unsigned hookid, const struct afb_ditf *ditf, struct sd_bus *result)
+static void hook_ditf_get_system_bus_cb(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, struct sd_bus *result)
 {
 	_hook_ditf_(ditf, "get_system_bus() -> %p", result);
 }
 
-static void hook_ditf_vverbose_cb(void *closure, unsigned hookid, const struct afb_ditf *ditf, int level, const char *file, int line, const char *function, const char *fmt, va_list args)
+static void hook_ditf_vverbose_cb(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, int level, const char *file, int line, const char *function, const char *fmt, va_list args)
 {
 	int len;
 	char *msg;
@@ -640,12 +642,12 @@ static void hook_ditf_vverbose_cb(void *closure, unsigned hookid, const struct a
 	}
 }
 
-static void hook_ditf_event_make_cb(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *name, struct afb_event result)
+static void hook_ditf_event_make_cb(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *name, struct afb_event result)
 {
 	_hook_ditf_(ditf, "event_make(%s) -> %s:%d", name, afb_evt_event_name(result), afb_evt_event_id(result));
 }
 
-static void hook_ditf_rootdir_get_fd_cb(void *closure, unsigned hookid, const struct afb_ditf *ditf, int result)
+static void hook_ditf_rootdir_get_fd_cb(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, int result)
 {
 	char path[PATH_MAX];
 	if (result < 0)
@@ -657,7 +659,7 @@ static void hook_ditf_rootdir_get_fd_cb(void *closure, unsigned hookid, const st
 	}
 }
 
-static void hook_ditf_rootdir_open_locale_cb(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *filename, int flags, const char *locale, int result)
+static void hook_ditf_rootdir_open_locale_cb(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *filename, int flags, const char *locale, int result)
 {
 	char path[PATH_MAX];
 	if (!locale)
@@ -671,22 +673,22 @@ static void hook_ditf_rootdir_open_locale_cb(void *closure, unsigned hookid, con
 	}
 }
 
-static void hook_ditf_queue_job_cb(void *closure, unsigned hookid, const struct afb_ditf *ditf, void (*callback)(int signum, void *arg), void *argument, void *group, int timeout, int result)
+static void hook_ditf_queue_job_cb(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, void (*callback)(int signum, void *arg), void *argument, void *group, int timeout, int result)
 {
 	_hook_ditf_(ditf, "queue_job(%p, %p, %p, %d) -> %d", callback, argument, group, timeout, result);
 }
 
-static void hook_ditf_unstore_req_cb(void *closure, unsigned hookid,  const struct afb_ditf *ditf, struct afb_stored_req *sreq)
+static void hook_ditf_unstore_req_cb(void *closure, const struct afb_hookid *hookid,  const struct afb_ditf *ditf, struct afb_stored_req *sreq)
 {
 	_hook_ditf_(ditf, "unstore_req(%p)", sreq);
 }
 
-static void hook_ditf_require_api_cb(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *name, int initialized)
+static void hook_ditf_require_api_cb(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *name, int initialized)
 {
 	_hook_ditf_(ditf, "require_api(%s, %d)...", name, initialized);
 }
 
-static void hook_ditf_require_api_result_cb(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *name, int initialized, int result)
+static void hook_ditf_require_api_result_cb(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *name, int initialized, int result)
 {
 	_hook_ditf_(ditf, "...require_api(%s, %d) -> %d", name, initialized, result);
 }
@@ -713,14 +715,15 @@ static struct afb_hook_ditf_itf hook_ditf_default_itf = {
 
 #define _HOOK_DITF_(what,...)   \
 	struct afb_hook_ditf *hook; \
-	unsigned hookid = new_hookid(); \
+	struct afb_hookid hookid; \
 	pthread_rwlock_rdlock(&rwlock); \
+	init_hookid(&hookid); \
 	hook = list_of_ditf_hooks; \
 	while (hook) { \
 		if (hook->itf->hook_ditf_##what \
 		 && (hook->flags & afb_hook_flag_ditf_##what) != 0 \
 		 && (!hook->api || !strcasecmp(hook->api, ditf->api))) { \
-			hook->itf->hook_ditf_##what(hook->closure, hookid, __VA_ARGS__); \
+			hook->itf->hook_ditf_##what(hook->closure, &hookid, __VA_ARGS__); \
 		} \
 		hook = hook->next; \
 	} \
@@ -898,42 +901,42 @@ static void _hook_svc_(const struct afb_svc *svc, const char *format, ...)
 	va_end(ap);
 }
 
-static void hook_svc_start_before_default_cb(void *closure, unsigned hookid, const struct afb_svc *svc)
+static void hook_svc_start_before_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc)
 {
 	_hook_svc_(svc, "start.before");
 }
 
-static void hook_svc_start_after_default_cb(void *closure, unsigned hookid, const struct afb_svc *svc, int status)
+static void hook_svc_start_after_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, int status)
 {
 	_hook_svc_(svc, "start.after -> %d", status);
 }
 
-static void hook_svc_on_event_before_default_cb(void *closure, unsigned hookid, const struct afb_svc *svc, const char *event, int eventid, struct json_object *object)
+static void hook_svc_on_event_before_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, const char *event, int eventid, struct json_object *object)
 {
 	_hook_svc_(svc, "on_event.before(%s, %d, %s)", event, eventid, json_object_to_json_string(object));
 }
 
-static void hook_svc_on_event_after_default_cb(void *closure, unsigned hookid, const struct afb_svc *svc, const char *event, int eventid, struct json_object *object)
+static void hook_svc_on_event_after_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, const char *event, int eventid, struct json_object *object)
 {
 	_hook_svc_(svc, "on_event.after(%s, %d, %s)", event, eventid, json_object_to_json_string(object));
 }
 
-static void hook_svc_call_default_cb(void *closure, unsigned hookid, const struct afb_svc *svc, const char *api, const char *verb, struct json_object *args)
+static void hook_svc_call_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, const char *api, const char *verb, struct json_object *args)
 {
 	_hook_svc_(svc, "call(%s/%s, %s) ...", api, verb, json_object_to_json_string(args));
 }
 
-static void hook_svc_call_result_default_cb(void *closure, unsigned hookid, const struct afb_svc *svc, int status, struct json_object *result)
+static void hook_svc_call_result_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, int status, struct json_object *result)
 {
 	_hook_svc_(svc, "    ...call... -> %d: %s", status, json_object_to_json_string(result));
 }
 
-static void hook_svc_callsync_default_cb(void *closure, unsigned hookid, const struct afb_svc *svc, const char *api, const char *verb, struct json_object *args)
+static void hook_svc_callsync_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, const char *api, const char *verb, struct json_object *args)
 {
 	_hook_svc_(svc, "callsync(%s/%s, %s) ...", api, verb, json_object_to_json_string(args));
 }
 
-static void hook_svc_callsync_result_default_cb(void *closure, unsigned hookid, const struct afb_svc *svc, int status, struct json_object *result)
+static void hook_svc_callsync_result_default_cb(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, int status, struct json_object *result)
 {
 	_hook_svc_(svc, "    ...callsync... -> %d: %s", status, json_object_to_json_string(result));
 }
@@ -955,14 +958,15 @@ static struct afb_hook_svc_itf hook_svc_default_itf = {
 
 #define _HOOK_SVC_(what,...)   \
 	struct afb_hook_svc *hook; \
-	unsigned hookid = new_hookid(); \
+	struct afb_hookid hookid; \
 	pthread_rwlock_rdlock(&rwlock); \
+	init_hookid(&hookid); \
 	hook = list_of_svc_hooks; \
 	while (hook) { \
 		if (hook->itf->hook_svc_##what \
 		 && (hook->flags & afb_hook_flag_svc_##what) != 0 \
 		 && (!hook->api || !strcasecmp(hook->api, svc->api))) { \
-			hook->itf->hook_svc_##what(hook->closure, hookid, __VA_ARGS__); \
+			hook->itf->hook_svc_##what(hook->closure, &hookid, __VA_ARGS__); \
 		} \
 		hook = hook->next; \
 	} \
@@ -1108,38 +1112,38 @@ static void _hook_evt_(const char *evt, int id, const char *format, ...)
 	va_end(ap);
 }
 
-static void hook_evt_create_default_cb(void *closure, unsigned hookid, const char *evt, int id)
+static void hook_evt_create_default_cb(void *closure, const struct afb_hookid *hookid, const char *evt, int id)
 {
 	_hook_evt_(evt, id, "create");
 }
 
-static void hook_evt_push_before_default_cb(void *closure, unsigned hookid, const char *evt, int id, struct json_object *obj)
+static void hook_evt_push_before_default_cb(void *closure, const struct afb_hookid *hookid, const char *evt, int id, struct json_object *obj)
 {
 	_hook_evt_(evt, id, "push.before(%s)", json_object_to_json_string(obj));
 }
 
 
-static void hook_evt_push_after_default_cb(void *closure, unsigned hookid, const char *evt, int id, struct json_object *obj, int result)
+static void hook_evt_push_after_default_cb(void *closure, const struct afb_hookid *hookid, const char *evt, int id, struct json_object *obj, int result)
 {
 	_hook_evt_(evt, id, "push.after(%s) -> %d", json_object_to_json_string(obj), result);
 }
 
-static void hook_evt_broadcast_before_default_cb(void *closure, unsigned hookid, const char *evt, int id, struct json_object *obj)
+static void hook_evt_broadcast_before_default_cb(void *closure, const struct afb_hookid *hookid, const char *evt, int id, struct json_object *obj)
 {
 	_hook_evt_(evt, id, "broadcast.before(%s)", json_object_to_json_string(obj));
 }
 
-static void hook_evt_broadcast_after_default_cb(void *closure, unsigned hookid, const char *evt, int id, struct json_object *obj, int result)
+static void hook_evt_broadcast_after_default_cb(void *closure, const struct afb_hookid *hookid, const char *evt, int id, struct json_object *obj, int result)
 {
 	_hook_evt_(evt, id, "broadcast.after(%s) -> %d", json_object_to_json_string(obj), result);
 }
 
-static void hook_evt_name_default_cb(void *closure, unsigned hookid, const char *evt, int id)
+static void hook_evt_name_default_cb(void *closure, const struct afb_hookid *hookid, const char *evt, int id)
 {
 	_hook_evt_(evt, id, "name");
 }
 
-static void hook_evt_drop_default_cb(void *closure, unsigned hookid, const char *evt, int id)
+static void hook_evt_drop_default_cb(void *closure, const struct afb_hookid *hookid, const char *evt, int id)
 {
 	_hook_evt_(evt, id, "drop");
 }
@@ -1160,14 +1164,15 @@ static struct afb_hook_evt_itf hook_evt_default_itf = {
 
 #define _HOOK_EVT_(what,...)   \
 	struct afb_hook_evt *hook; \
-	unsigned hookid = new_hookid(); \
+	struct afb_hookid hookid; \
 	pthread_rwlock_rdlock(&rwlock); \
+	init_hookid(&hookid); \
 	hook = list_of_evt_hooks; \
 	while (hook) { \
 		if (hook->itf->hook_evt_##what \
 		 && (hook->flags & afb_hook_flag_evt_##what) != 0 \
 		 && (!hook->pattern || !fnmatch(hook->pattern, evt, FNM_CASEFOLD))) { \
-			hook->itf->hook_evt_##what(hook->closure, hookid, __VA_ARGS__); \
+			hook->itf->hook_evt_##what(hook->closure, &hookid, __VA_ARGS__); \
 		} \
 		hook = hook->next; \
 	} \
diff --git a/src/afb-hook.h b/src/afb-hook.h
index 4e3d6140..8f7f61d1 100644
--- a/src/afb-hook.h
+++ b/src/afb-hook.h
@@ -18,6 +18,7 @@
 #pragma once
 
 #include <stdarg.h>
+#include <time.h>
 
 struct req;
 struct afb_context;
@@ -33,6 +34,15 @@ struct sd_bus;
 struct sd_event;
 
 /*********************************************************
+* section hookid
+*********************************************************/
+struct afb_hookid
+{
+	unsigned id;		/* id of the hook event */
+	struct timespec time;	/* time of the hook event */
+};
+
+/*********************************************************
 * section hooking xreq
 *********************************************************/
 struct afb_hook_xreq;
@@ -86,29 +96,29 @@ struct afb_hook_xreq;
 #define afb_hook_flags_req_all		(afb_hook_flags_req_extra)
 
 struct afb_hook_xreq_itf {
-	void (*hook_xreq_begin)(void *closure, unsigned hookid, const struct afb_xreq *xreq);
-	void (*hook_xreq_end)(void *closure, unsigned hookid, const struct afb_xreq *xreq);
-	void (*hook_xreq_json)(void *closure, unsigned hookid, const struct afb_xreq *xreq, struct json_object *obj);
-	void (*hook_xreq_get)(void *closure, unsigned hookid, const struct afb_xreq *xreq, const char *name, struct afb_arg arg);
-	void (*hook_xreq_success)(void *closure, unsigned hookid, const struct afb_xreq *xreq, struct json_object *obj, const char *info);
-	void (*hook_xreq_fail)(void *closure, unsigned hookid, const struct afb_xreq *xreq, const char *status, const char *info);
-	void (*hook_xreq_context_get)(void *closure, unsigned hookid, const struct afb_xreq *xreq, void *value);
-	void (*hook_xreq_context_set)(void *closure, unsigned hookid, const struct afb_xreq *xreq, void *value, void (*free_value)(void*));
-	void (*hook_xreq_addref)(void *closure, unsigned hookid, const struct afb_xreq *xreq);
-	void (*hook_xreq_unref)(void *closure, unsigned hookid, const struct afb_xreq *xreq);
-	void (*hook_xreq_session_close)(void *closure, unsigned hookid, const struct afb_xreq *xreq);
-	void (*hook_xreq_session_set_LOA)(void *closure, unsigned hookid, const struct afb_xreq *xreq, unsigned level, int result);
-	void (*hook_xreq_subscribe)(void *closure, unsigned hookid, const struct afb_xreq *xreq, struct afb_event event, int result);
-	void (*hook_xreq_unsubscribe)(void *closure, unsigned hookid, const struct afb_xreq *xreq, struct afb_event event, int result);
-	void (*hook_xreq_subcall)(void *closure, unsigned hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args);
-	void (*hook_xreq_subcall_result)(void *closure, unsigned hookid, const struct afb_xreq *xreq, int status, struct json_object *result);
-	void (*hook_xreq_subcallsync)(void *closure, unsigned hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args);
-	void (*hook_xreq_subcallsync_result)(void *closure, unsigned hookid, const struct afb_xreq *xreq, int status, struct json_object *result);
-	void (*hook_xreq_vverbose)(void *closure, unsigned hookid, const struct afb_xreq *xreq, int level, const char *file, int line, const char *func, const char *fmt, va_list args);
-	void (*hook_xreq_store)(void *closure, unsigned hookid, const struct afb_xreq *xreq, struct afb_stored_req *sreq);
-	void (*hook_xreq_unstore)(void *closure, unsigned hookid, const struct afb_xreq *xreq);
-	void (*hook_xreq_subcall_req)(void *closure, unsigned hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args);
-	void (*hook_xreq_subcall_req_result)(void *closure, unsigned hookid, const struct afb_xreq *xreq, int status, struct json_object *result);
+	void (*hook_xreq_begin)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq);
+	void (*hook_xreq_end)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq);
+	void (*hook_xreq_json)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct json_object *obj);
+	void (*hook_xreq_get)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *name, struct afb_arg arg);
+	void (*hook_xreq_success)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct json_object *obj, const char *info);
+	void (*hook_xreq_fail)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *status, const char *info);
+	void (*hook_xreq_context_get)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, void *value);
+	void (*hook_xreq_context_set)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, void *value, void (*free_value)(void*));
+	void (*hook_xreq_addref)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq);
+	void (*hook_xreq_unref)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq);
+	void (*hook_xreq_session_close)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq);
+	void (*hook_xreq_session_set_LOA)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, unsigned level, int result);
+	void (*hook_xreq_subscribe)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct afb_event event, int result);
+	void (*hook_xreq_unsubscribe)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct afb_event event, int result);
+	void (*hook_xreq_subcall)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args);
+	void (*hook_xreq_subcall_result)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, int status, struct json_object *result);
+	void (*hook_xreq_subcallsync)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args);
+	void (*hook_xreq_subcallsync_result)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, int status, struct json_object *result);
+	void (*hook_xreq_vverbose)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, int level, const char *file, int line, const char *func, const char *fmt, va_list args);
+	void (*hook_xreq_store)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct afb_stored_req *sreq);
+	void (*hook_xreq_unstore)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq);
+	void (*hook_xreq_subcall_req)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args);
+	void (*hook_xreq_subcall_req_result)(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, int status, struct json_object *result);
 };
 
 extern void afb_hook_init_xreq(struct afb_xreq *xreq);
@@ -177,19 +187,19 @@ extern void afb_hook_xreq_subcall_req_result(const struct afb_xreq *xreq, int st
 #define afb_hook_flags_ditf_all		(afb_hook_flags_ditf_common|afb_hook_flags_ditf_extra)
 
 struct afb_hook_ditf_itf {
-	void (*hook_ditf_event_broadcast_before)(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *name, struct json_object *object);
-	void (*hook_ditf_event_broadcast_after)(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *name, struct json_object *object, int result);
-	void (*hook_ditf_get_event_loop)(void *closure, unsigned hookid, const struct afb_ditf *ditf, struct sd_event *result);
-	void (*hook_ditf_get_user_bus)(void *closure, unsigned hookid, const struct afb_ditf *ditf, struct sd_bus *result);
-	void (*hook_ditf_get_system_bus)(void *closure, unsigned hookid, const struct afb_ditf *ditf, struct sd_bus *result);
-	void (*hook_ditf_vverbose)(void *closure, unsigned hookid, const struct afb_ditf *ditf, int level, const char *file, int line, const char *function, const char *fmt, va_list args);
-	void (*hook_ditf_event_make)(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *name, struct afb_event result);
-	void (*hook_ditf_rootdir_get_fd)(void *closure, unsigned hookid, const struct afb_ditf *ditf, int result);
-	void (*hook_ditf_rootdir_open_locale)(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *filename, int flags, const char *locale, int result);
-	void (*hook_ditf_queue_job)(void *closure, unsigned hookid, const struct afb_ditf *ditf, void (*callback)(int signum, void *arg), void *argument, void *group, int timeout, int result);
-	void (*hook_ditf_unstore_req)(void *closure, unsigned hookid, const struct afb_ditf *ditf, struct afb_stored_req *sreq);
-	void (*hook_ditf_require_api)(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *name, int initialized);
-	void (*hook_ditf_require_api_result)(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *name, int initialized, int result);
+	void (*hook_ditf_event_broadcast_before)(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *name, struct json_object *object);
+	void (*hook_ditf_event_broadcast_after)(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *name, struct json_object *object, int result);
+	void (*hook_ditf_get_event_loop)(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, struct sd_event *result);
+	void (*hook_ditf_get_user_bus)(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, struct sd_bus *result);
+	void (*hook_ditf_get_system_bus)(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, struct sd_bus *result);
+	void (*hook_ditf_vverbose)(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, int level, const char *file, int line, const char *function, const char *fmt, va_list args);
+	void (*hook_ditf_event_make)(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *name, struct afb_event result);
+	void (*hook_ditf_rootdir_get_fd)(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, int result);
+	void (*hook_ditf_rootdir_open_locale)(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *filename, int flags, const char *locale, int result);
+	void (*hook_ditf_queue_job)(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, void (*callback)(int signum, void *arg), void *argument, void *group, int timeout, int result);
+	void (*hook_ditf_unstore_req)(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, struct afb_stored_req *sreq);
+	void (*hook_ditf_require_api)(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *name, int initialized);
+	void (*hook_ditf_require_api_result)(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *name, int initialized, int result);
 };
 
 extern void afb_hook_ditf_event_broadcast_before(const struct afb_ditf *ditf, const char *name, struct json_object *object);
@@ -230,14 +240,14 @@ extern void afb_hook_unref_ditf(struct afb_hook_ditf *hook);
 					|afb_hook_flag_svc_callsync|afb_hook_flag_svc_callsync_result)
 
 struct afb_hook_svc_itf {
-	void (*hook_svc_start_before)(void *closure, unsigned hookid, const struct afb_svc *svc);
-	void (*hook_svc_start_after)(void *closure, unsigned hookid, const struct afb_svc *svc, int status);
-	void (*hook_svc_on_event_before)(void *closure, unsigned hookid, const struct afb_svc *svc, const char *event, int eventid, struct json_object *object);
-	void (*hook_svc_on_event_after)(void *closure, unsigned hookid, const struct afb_svc *svc, const char *event, int eventid, struct json_object *object);
-	void (*hook_svc_call)(void *closure, unsigned hookid, const struct afb_svc *svc, const char *api, const char *verb, struct json_object *args);
-	void (*hook_svc_call_result)(void *closure, unsigned hookid, const struct afb_svc *svc, int status, struct json_object *result);
-	void (*hook_svc_callsync)(void *closure, unsigned hookid, const struct afb_svc *svc, const char *api, const char *verb, struct json_object *args);
-	void (*hook_svc_callsync_result)(void *closure, unsigned hookid, const struct afb_svc *svc, int status, struct json_object *result);
+	void (*hook_svc_start_before)(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc);
+	void (*hook_svc_start_after)(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, int status);
+	void (*hook_svc_on_event_before)(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, const char *event, int eventid, struct json_object *object);
+	void (*hook_svc_on_event_after)(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, const char *event, int eventid, struct json_object *object);
+	void (*hook_svc_call)(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, const char *api, const char *verb, struct json_object *args);
+	void (*hook_svc_call_result)(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, int status, struct json_object *result);
+	void (*hook_svc_callsync)(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, const char *api, const char *verb, struct json_object *args);
+	void (*hook_svc_callsync_result)(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, int status, struct json_object *result);
 };
 
 extern void afb_hook_svc_start_before(const struct afb_svc *svc);
@@ -273,13 +283,13 @@ extern void afb_hook_unref_svc(struct afb_hook_svc *hook);
 #define afb_hook_flags_evt_all		(afb_hook_flags_evt_extra|afb_hook_flag_evt_name)
 
 struct afb_hook_evt_itf {
-	void (*hook_evt_create)(void *closure, unsigned hookid, const char *evt, int id);
-	void (*hook_evt_push_before)(void *closure, unsigned hookid, const char *evt, int id, struct json_object *obj);
-	void (*hook_evt_push_after)(void *closure, unsigned hookid, const char *evt, int id, struct json_object *obj, int result);
-	void (*hook_evt_broadcast_before)(void *closure, unsigned hookid, const char *evt, int id, struct json_object *obj);
-	void (*hook_evt_broadcast_after)(void *closure, unsigned hookid, const char *evt, int id, struct json_object *obj, int result);
-	void (*hook_evt_name)(void *closure, unsigned hookid, const char *evt, int id);
-	void (*hook_evt_drop)(void *closure, unsigned hookid, const char *evt, int id);
+	void (*hook_evt_create)(void *closure, const struct afb_hookid *hookid, const char *evt, int id);
+	void (*hook_evt_push_before)(void *closure, const struct afb_hookid *hookid, const char *evt, int id, struct json_object *obj);
+	void (*hook_evt_push_after)(void *closure, const struct afb_hookid *hookid, const char *evt, int id, struct json_object *obj, int result);
+	void (*hook_evt_broadcast_before)(void *closure, const struct afb_hookid *hookid, const char *evt, int id, struct json_object *obj);
+	void (*hook_evt_broadcast_after)(void *closure, const struct afb_hookid *hookid, const char *evt, int id, struct json_object *obj, int result);
+	void (*hook_evt_name)(void *closure, const struct afb_hookid *hookid, const char *evt, int id);
+	void (*hook_evt_drop)(void *closure, const struct afb_hookid *hookid, const char *evt, int id);
 };
 
 extern void afb_hook_evt_create(const char *evt, int id);
diff --git a/src/afb-trace.c b/src/afb-trace.c
index 5d58b2dd..bc2de6d2 100644
--- a/src/afb-trace.c
+++ b/src/afb-trace.c
@@ -26,7 +26,6 @@
 #include <limits.h>
 #include <unistd.h>
 #include <pthread.h>
-#include <time.h>
 
 #include <json-c/json.h>
 #include <afb/afb-binding-v2.h>
@@ -163,13 +162,11 @@ static int get_flag(const char *name, struct flag flags[], int count)
 }
 
 /* timestamp */
-static struct json_object *timestamp()
+static struct json_object *timestamp(const struct afb_hookid *hookid)
 {
 	char ts[50];
-	struct timespec tv;
 
-	clock_gettime(CLOCK_MONOTONIC, &tv);
-	snprintf(ts, sizeof ts, "%llu.%06lu", (long long unsigned)tv.tv_sec, (long unsigned)(tv.tv_nsec / 1000));
+	snprintf(ts, sizeof ts, "%llu.%06lu", (long long unsigned)hookid->time.tv_sec, (long unsigned)(hookid->time.tv_nsec / 1000));
 	return json_object_new_string(ts);
 }
 
@@ -188,7 +185,7 @@ static const char *verbosity_level_name(int level)
 }
 
 /* generic hook */
-static void emit(void *closure, unsigned hookid, const char *type, const char *fmt1, const char *fmt2, va_list ap2, ...)
+static void emit(void *closure, const struct afb_hookid *hookid, const char *type, const char *fmt1, const char *fmt2, va_list ap2, ...)
 {
 	struct hook *hook = closure;
 	struct json_object *event, *data1, *data2;
@@ -202,10 +199,10 @@ static void emit(void *closure, unsigned hookid, const char *type, const char *f
 		wrap_json_vpack(&data2, fmt2, ap2);
 
 	wrap_json_pack(&event, "{so ss ss si so so*}",
-					"time", timestamp(),
+					"time", timestamp(hookid),
 					"tag", hook->tag->tag,
 					"type", type,
-					"id", (int)(hookid & INT_MAX),
+					"id", (int)(hookid->id & INT_MAX),
 					type, data1,
 					"data", data2);
 
@@ -260,7 +257,7 @@ static int get_xreq_flag(const char *name)
 	return get_flag(name, xreq_flags, (int)(sizeof xreq_flags / sizeof *xreq_flags));
 }
 
-static void hook_xreq(void *closure, unsigned hookid, const struct afb_xreq *xreq, const char *action, const char *format, ...)
+static void hook_xreq(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *action, const char *format, ...)
 {
 	struct json_object *cred = NULL;
 	const char *session = NULL;
@@ -289,23 +286,23 @@ static void hook_xreq(void *closure, unsigned hookid, const struct afb_xreq *xre
 	va_end(ap);
 }
 
-static void hook_xreq_begin(void *closure, unsigned hookid, const struct afb_xreq *xreq)
+static void hook_xreq_begin(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq)
 {
 	hook_xreq(closure, hookid, xreq, "begin", NULL);
 }
 
-static void hook_xreq_end(void *closure, unsigned hookid, const struct afb_xreq *xreq)
+static void hook_xreq_end(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq)
 {
 	hook_xreq(closure, hookid, xreq, "end", NULL);
 }
 
-static void hook_xreq_json(void *closure, unsigned hookid, const struct afb_xreq *xreq, struct json_object *obj)
+static void hook_xreq_json(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct json_object *obj)
 {
 	hook_xreq(closure, hookid, xreq, "json", "{sO?}",
 						"result", obj);
 }
 
-static void hook_xreq_get(void *closure, unsigned hookid, const struct afb_xreq *xreq, const char *name, struct afb_arg arg)
+static void hook_xreq_get(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *name, struct afb_arg arg)
 {
 	hook_xreq(closure, hookid, xreq, "get", "{ss? ss? ss? ss?}",
 						"query", name,
@@ -314,53 +311,53 @@ static void hook_xreq_get(void *closure, unsigned hookid, const struct afb_xreq
 						"path", arg.path);
 }
 
-static void hook_xreq_success(void *closure, unsigned hookid, const struct afb_xreq *xreq, struct json_object *obj, const char *info)
+static void hook_xreq_success(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct json_object *obj, const char *info)
 {
 	hook_xreq(closure, hookid, xreq, "success", "{sO? ss?}",
 						"result", obj,
 						"info", info);
 }
 
-static void hook_xreq_fail(void *closure, unsigned hookid, const struct afb_xreq *xreq, const char *status, const char *info)
+static void hook_xreq_fail(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *status, const char *info)
 {
 	hook_xreq(closure, hookid, xreq, "fail", "{ss? ss?}",
 						"status", status,
 						"info", info);
 }
 
-static void hook_xreq_context_get(void *closure, unsigned hookid, const struct afb_xreq *xreq, void *value)
+static void hook_xreq_context_get(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, void *value)
 {
 	hook_xreq(closure, hookid, xreq, "context_get", NULL);
 }
 
-static void hook_xreq_context_set(void *closure, unsigned hookid, const struct afb_xreq *xreq, void *value, void (*free_value)(void*))
+static void hook_xreq_context_set(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, void *value, void (*free_value)(void*))
 {
 	hook_xreq(closure, hookid, xreq, "context_set", NULL);
 }
 
-static void hook_xreq_addref(void *closure, unsigned hookid, const struct afb_xreq *xreq)
+static void hook_xreq_addref(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq)
 {
 	hook_xreq(closure, hookid, xreq, "addref", NULL);
 }
 
-static void hook_xreq_unref(void *closure, unsigned hookid, const struct afb_xreq *xreq)
+static void hook_xreq_unref(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq)
 {
 	hook_xreq(closure, hookid, xreq, "unref", NULL);
 }
 
-static void hook_xreq_session_close(void *closure, unsigned hookid, const struct afb_xreq *xreq)
+static void hook_xreq_session_close(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq)
 {
 	hook_xreq(closure, hookid, xreq, "session_close", NULL);
 }
 
-static void hook_xreq_session_set_LOA(void *closure, unsigned hookid, const struct afb_xreq *xreq, unsigned level, int result)
+static void hook_xreq_session_set_LOA(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, unsigned level, int result)
 {
 	hook_xreq(closure, hookid, xreq, "session_set_LOA", "{si si}",
 					"level", level,
 					"result", result);
 }
 
-static void hook_xreq_subscribe(void *closure, unsigned hookid, const struct afb_xreq *xreq, struct afb_event event, int result)
+static void hook_xreq_subscribe(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct afb_event event, int result)
 {
 	hook_xreq(closure, hookid, xreq, "subscribe", "{s{ss si} si}",
 					"event",
@@ -369,7 +366,7 @@ static void hook_xreq_subscribe(void *closure, unsigned hookid, const struct afb
 					"result", result);
 }
 
-static void hook_xreq_unsubscribe(void *closure, unsigned hookid, const struct afb_xreq *xreq, struct afb_event event, int result)
+static void hook_xreq_unsubscribe(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct afb_event event, int result)
 {
 	hook_xreq(closure, hookid, xreq, "unsubscribe", "{s{ss? si} si}",
 					"event",
@@ -378,7 +375,7 @@ static void hook_xreq_unsubscribe(void *closure, unsigned hookid, const struct a
 					"result", result);
 }
 
-static void hook_xreq_subcall(void *closure, unsigned hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args)
+static void hook_xreq_subcall(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args)
 {
 	hook_xreq(closure, hookid, xreq, "subcall", "{ss? ss? sO?}",
 					"api", api,
@@ -386,14 +383,14 @@ static void hook_xreq_subcall(void *closure, unsigned hookid, const struct afb_x
 					"args", args);
 }
 
-static void hook_xreq_subcall_result(void *closure, unsigned hookid, const struct afb_xreq *xreq, int status, struct json_object *result)
+static void hook_xreq_subcall_result(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, int status, struct json_object *result)
 {
 	hook_xreq(closure, hookid, xreq, "subcall_result", "{si sO?}",
 					"status", status,
 					"result", result);
 }
 
-static void hook_xreq_subcallsync(void *closure, unsigned hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args)
+static void hook_xreq_subcallsync(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args)
 {
 	hook_xreq(closure, hookid, xreq, "subcallsync", "{ss? ss? sO?}",
 					"api", api,
@@ -401,14 +398,14 @@ static void hook_xreq_subcallsync(void *closure, unsigned hookid, const struct a
 					"args", args);
 }
 
-static void hook_xreq_subcallsync_result(void *closure, unsigned hookid, const struct afb_xreq *xreq, int status, struct json_object *result)
+static void hook_xreq_subcallsync_result(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, int status, struct json_object *result)
 {
 	hook_xreq(closure, hookid, xreq, "subcallsync_result", "{si sO?}",
 					"status", status,
 					"result", result);
 }
 
-static void hook_xreq_vverbose(void *closure, unsigned hookid, const struct afb_xreq *xreq, int level, const char *file, int line, const char *func, const char *fmt, va_list args)
+static void hook_xreq_vverbose(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, int level, const char *file, int line, const char *func, const char *fmt, va_list args)
 {
 	struct json_object *pos;
 	int len;
@@ -434,17 +431,17 @@ static void hook_xreq_vverbose(void *closure, unsigned hookid, const struct afb_
 	free(msg);
 }
 
-static void hook_xreq_store(void *closure, unsigned hookid, const struct afb_xreq *xreq, struct afb_stored_req *sreq)
+static void hook_xreq_store(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, struct afb_stored_req *sreq)
 {
 	hook_xreq(closure, hookid, xreq, "store", NULL);
 }
 
-static void hook_xreq_unstore(void *closure, unsigned hookid, const struct afb_xreq *xreq)
+static void hook_xreq_unstore(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq)
 {
 	hook_xreq(closure, hookid, xreq, "unstore", NULL);
 }
 
-static void hook_xreq_subcall_req(void *closure, unsigned hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args)
+static void hook_xreq_subcall_req(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args)
 {
 	hook_xreq(closure, hookid, xreq, "subcall_req", "{ss? ss? sO?}",
 					"api", api,
@@ -452,7 +449,7 @@ static void hook_xreq_subcall_req(void *closure, unsigned hookid, const struct a
 					"args", args);
 }
 
-static void hook_xreq_subcall_req_result(void *closure, unsigned hookid, const struct afb_xreq *xreq, int status, struct json_object *result)
+static void hook_xreq_subcall_req_result(void *closure, const struct afb_hookid *hookid, const struct afb_xreq *xreq, int status, struct json_object *result)
 {
 	hook_xreq(closure, hookid, xreq, "subcall_req_result", "{si sO?}",
 					"status", status,
@@ -515,7 +512,7 @@ static int get_ditf_flag(const char *name)
 }
 
 
-static void hook_ditf(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *action, const char *format, ...)
+static void hook_ditf(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *action, const char *format, ...)
 {
 	va_list ap;
 
@@ -526,34 +523,34 @@ static void hook_ditf(void *closure, unsigned hookid, const struct afb_ditf *dit
 	va_end(ap);
 }
 
-static void hook_ditf_event_broadcast_before(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *name, struct json_object *object)
+static void hook_ditf_event_broadcast_before(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *name, struct json_object *object)
 {
 	hook_ditf(closure, hookid, ditf, "event_broadcast_before", "{ss sO*}",
 			"name", name, "data", object);
 }
 
-static void hook_ditf_event_broadcast_after(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *name, struct json_object *object, int result)
+static void hook_ditf_event_broadcast_after(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *name, struct json_object *object, int result)
 {
 	hook_ditf(closure, hookid, ditf, "event_broadcast_after", "{ss sO* si}",
 			"name", name, "data", object, "result", result);
 }
 
-static void hook_ditf_get_event_loop(void *closure, unsigned hookid, const struct afb_ditf *ditf, struct sd_event *result)
+static void hook_ditf_get_event_loop(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, struct sd_event *result)
 {
 	hook_ditf(closure, hookid, ditf, "get_event_loop", NULL);
 }
 
-static void hook_ditf_get_user_bus(void *closure, unsigned hookid, const struct afb_ditf *ditf, struct sd_bus *result)
+static void hook_ditf_get_user_bus(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, struct sd_bus *result)
 {
 	hook_ditf(closure, hookid, ditf, "get_user_bus", NULL);
 }
 
-static void hook_ditf_get_system_bus(void *closure, unsigned hookid, const struct afb_ditf *ditf, struct sd_bus *result)
+static void hook_ditf_get_system_bus(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, struct sd_bus *result)
 {
 	hook_ditf(closure, hookid, ditf, "get_system_bus", NULL);
 }
 
-static void hook_ditf_vverbose(void *closure, unsigned hookid, const struct afb_ditf *ditf, int level, const char *file, int line, const char *function, const char *fmt, va_list args)
+static void hook_ditf_vverbose(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, int level, const char *file, int line, const char *function, const char *fmt, va_list args)
 {
 	struct json_object *pos;
 	int len;
@@ -579,13 +576,13 @@ static void hook_ditf_vverbose(void *closure, unsigned hookid, const struct afb_
 	free(msg);
 }
 
-static void hook_ditf_event_make(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *name, struct afb_event result)
+static void hook_ditf_event_make(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *name, struct afb_event result)
 {
 	hook_ditf(closure, hookid, ditf, "event_make", "{ss ss si}",
 			"name", name, "event", afb_evt_event_name(result), "id", afb_evt_event_id(result));
 }
 
-static void hook_ditf_rootdir_get_fd(void *closure, unsigned hookid, const struct afb_ditf *ditf, int result)
+static void hook_ditf_rootdir_get_fd(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, int result)
 {
 	char path[PATH_MAX];
 
@@ -599,7 +596,7 @@ static void hook_ditf_rootdir_get_fd(void *closure, unsigned hookid, const struc
 			result < 0 ? strerror(errno) : path);
 }
 
-static void hook_ditf_rootdir_open_locale(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *filename, int flags, const char *locale, int result)
+static void hook_ditf_rootdir_open_locale(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *filename, int flags, const char *locale, int result)
 {
 	char path[PATH_MAX];
 
@@ -616,22 +613,22 @@ static void hook_ditf_rootdir_open_locale(void *closure, unsigned hookid, const
 			result < 0 ? strerror(errno) : path);
 }
 
-static void hook_ditf_queue_job(void *closure, unsigned hookid, const struct afb_ditf *ditf, void (*callback)(int signum, void *arg), void *argument, void *group, int timeout, int result)
+static void hook_ditf_queue_job(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, void (*callback)(int signum, void *arg), void *argument, void *group, int timeout, int result)
 {
 	hook_ditf(closure, hookid, ditf, "queue_job", "{ss}", "result", result);
 }
 
-static void hook_ditf_unstore_req(void * closure, unsigned hookid, const struct afb_ditf *ditf, struct afb_stored_req *sreq)
+static void hook_ditf_unstore_req(void * closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, struct afb_stored_req *sreq)
 {
 	hook_ditf(closure, hookid, ditf, "unstore_req", NULL);
 }
 
-static void hook_ditf_require_api(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *name, int initialized)
+static void hook_ditf_require_api(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *name, int initialized)
 {
 	hook_ditf(closure, hookid, ditf, "require_api", "{ss sb}", "name", name, "initialized", initialized);
 }
 
-static void hook_ditf_require_api_result(void *closure, unsigned hookid, const struct afb_ditf *ditf, const char *name, int initialized, int result)
+static void hook_ditf_require_api_result(void *closure, const struct afb_hookid *hookid, const struct afb_ditf *ditf, const char *name, int initialized, int result)
 {
 	hook_ditf(closure, hookid, ditf, "require_api_result", "{ss sb si}", "name", name, "initialized", initialized, "result", result);
 }
@@ -674,7 +671,7 @@ static int get_svc_flag(const char *name)
 	return get_flag(name, svc_flags, (int)(sizeof svc_flags / sizeof *svc_flags));
 }
 
-static void hook_svc(void *closure, unsigned hookid, const struct afb_svc *svc, const char *action, const char *format, ...)
+static void hook_svc(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, const char *action, const char *format, ...)
 {
 	va_list ap;
 
@@ -685,47 +682,47 @@ static void hook_svc(void *closure, unsigned hookid, const struct afb_svc *svc,
 	va_end(ap);
 }
 
-static void hook_svc_start_before(void *closure, unsigned hookid, const struct afb_svc *svc)
+static void hook_svc_start_before(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc)
 {
 	hook_svc(closure, hookid, svc, "start_before", NULL);
 }
 
-static void hook_svc_start_after(void *closure, unsigned hookid, const struct afb_svc *svc, int status)
+static void hook_svc_start_after(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, int status)
 {
 	hook_svc(closure, hookid, svc, "start_after", "{si}", "result", status);
 }
 
-static void hook_svc_on_event_before(void *closure, unsigned hookid, const struct afb_svc *svc, const char *event, int eventid, struct json_object *object)
+static void hook_svc_on_event_before(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, const char *event, int eventid, struct json_object *object)
 {
 	hook_svc(closure, hookid, svc, "on_event_before", "{ss si sO*}",
 			"event", event, "id", eventid, "data", object);
 }
 
-static void hook_svc_on_event_after(void *closure, unsigned hookid, const struct afb_svc *svc, const char *event, int eventid, struct json_object *object)
+static void hook_svc_on_event_after(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, const char *event, int eventid, struct json_object *object)
 {
 	hook_svc(closure, hookid, svc, "on_event_after", "{ss si sO*}",
 			"event", event, "id", eventid, "data", object);
 }
 
-static void hook_svc_call(void *closure, unsigned hookid, const struct afb_svc *svc, const char *api, const char *verb, struct json_object *args)
+static void hook_svc_call(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, const char *api, const char *verb, struct json_object *args)
 {
 	hook_svc(closure, hookid, svc, "call", "{ss ss sO*}",
 			"api", api, "verb", verb, "args", args);
 }
 
-static void hook_svc_call_result(void *closure, unsigned hookid, const struct afb_svc *svc, int status, struct json_object *result)
+static void hook_svc_call_result(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, int status, struct json_object *result)
 {
 	hook_svc(closure, hookid, svc, "call_result", "{si sO*}",
 			"status", status, "result", result);
 }
 
-static void hook_svc_callsync(void *closure, unsigned hookid, const struct afb_svc *svc, const char *api, const char *verb, struct json_object *args)
+static void hook_svc_callsync(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, const char *api, const char *verb, struct json_object *args)
 {
 	hook_svc(closure, hookid, svc, "callsync", "{ss ss sO*}",
 			"api", api, "verb", verb, "args", args);
 }
 
-static void hook_svc_callsync_result(void *closure, unsigned hookid, const struct afb_svc *svc, int status, struct json_object *result)
+static void hook_svc_callsync_result(void *closure, const struct afb_hookid *hookid, const struct afb_svc *svc, int status, struct json_object *result)
 {
 	hook_svc(closure, hookid, svc, "callsync_result", "{si sO*}",
 			"status", status, "result", result);
@@ -765,7 +762,7 @@ static int get_evt_flag(const char *name)
 	return get_flag(name, evt_flags, (int)(sizeof evt_flags / sizeof *evt_flags));
 }
 
-static void hook_evt(void *closure, unsigned hookid, const char *evt, int id, const char *action, const char *format, ...)
+static void hook_evt(void *closure, const struct afb_hookid *hookid, const char *evt, int id, const char *action, const char *format, ...)
 {
 	va_list ap;
 
@@ -777,38 +774,38 @@ static void hook_evt(void *closure, unsigned hookid, const char *evt, int id, co
 	va_end(ap);
 }
 
-static void hook_evt_create(void *closure, unsigned hookid, const char *evt, int id)
+static void hook_evt_create(void *closure, const struct afb_hookid *hookid, const char *evt, int id)
 {
 	hook_evt(closure, hookid, evt, id, "create", NULL);
 }
 
-static void hook_evt_push_before(void *closure, unsigned hookid, const char *evt, int id, struct json_object *obj)
+static void hook_evt_push_before(void *closure, const struct afb_hookid *hookid, const char *evt, int id, struct json_object *obj)
 {
 	hook_evt(closure, hookid, evt, id, "push_before", "{sO*}", "data", obj);
 }
 
 
-static void hook_evt_push_after(void *closure, unsigned hookid, const char *evt, int id, struct json_object *obj, int result)
+static void hook_evt_push_after(void *closure, const struct afb_hookid *hookid, const char *evt, int id, struct json_object *obj, int result)
 {
 	hook_evt(closure, hookid, evt, id, "push_after", "{sO* si}", "data", obj, "result", result);
 }
 
-static void hook_evt_broadcast_before(void *closure, unsigned hookid, const char *evt, int id, struct json_object *obj)
+static void hook_evt_broadcast_before(void *closure, const struct afb_hookid *hookid, const char *evt, int id, struct json_object *obj)
 {
 	hook_evt(closure, hookid, evt, id, "broadcast_before", "{sO*}", "data", obj);
 }
 
-static void hook_evt_broadcast_after(void *closure, unsigned hookid, const char *evt, int id, struct json_object *obj, int result)
+static void hook_evt_broadcast_after(void *closure, const struct afb_hookid *hookid, const char *evt, int id, struct json_object *obj, int result)
 {
 	hook_evt(closure, hookid, evt, id, "broadcast_after", "{sO* si}", "data", obj, "result", result);
 }
 
-static void hook_evt_name(void *closure, unsigned hookid, const char *evt, int id)
+static void hook_evt_name(void *closure, const struct afb_hookid *hookid, const char *evt, int id)
 {
 	hook_evt(closure, hookid, evt, id, "name", NULL);
 }
 
-static void hook_evt_drop(void *closure, unsigned hookid, const char *evt, int id)
+static void hook_evt_drop(void *closure, const struct afb_hookid *hookid, const char *evt, int id)
 {
 	hook_evt(closure, hookid, evt, id, "drop", NULL);
 }