void *closure; /**< closure for callbacks */
};
+/**
+ * Definition of a hook for global
+ */
+struct afb_hook_global {
+ struct afb_hook_global *next; /**< next hook */
+ unsigned refcount; /**< reference count */
+ unsigned flags; /**< hook flags */
+ struct afb_hook_global_itf *itf; /**< interface of hook */
+ void *closure; /**< closure for callbacks */
+};
+
/* synchronisation across threads */
static pthread_rwlock_t rwlock = PTHREAD_RWLOCK_INITIALIZER;
/* list of hooks for evt */
static struct afb_hook_evt *list_of_evt_hooks = NULL;
+/* list of hooks for global */
+static struct afb_hook_global *list_of_global_hooks = NULL;
+
+/* hook id */
+static unsigned next_hookid = 0;
+
+/******************************************************************************
+ * section: hook id
+ *****************************************************************************/
+static void init_hookid(struct afb_hookid *hookid)
+{
+ hookid->id = __atomic_add_fetch(&next_hookid, 1, __ATOMIC_RELAXED);
+ clock_gettime(CLOCK_MONOTONIC, &hookid->time);
+}
+
/******************************************************************************
* section: default callbacks for tracing requests
*****************************************************************************/
va_end(ap);
}
-static void hook_xreq_begin_default_cb(void * closure, 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");
);
}
-static void hook_xreq_end_default_cb(void * closure, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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;
}
}
-static void hook_xreq_store_default_cb(void * closure, 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, 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, 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, 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));
}
#define _HOOK_XREQ_(what,...) \
struct afb_hook_xreq *hook; \
+ struct afb_hookid hookid; \
pthread_rwlock_rdlock(&rwlock); \
+ init_hookid(&hookid); \
hook = list_of_xreq_hooks; \
while (hook) { \
if (hook->itf->hook_xreq_##what \
&& (!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, __VA_ARGS__); \
+ hook->itf->hook_xreq_##what(hook->closure, &hookid, __VA_ARGS__); \
} \
hook = hook->next; \
} \
va_end(ap);
}
-static void hook_ditf_event_broadcast_before_cb(void *closure, 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, 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, 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, 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, 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, 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;
}
}
-static void hook_ditf_event_make_cb(void *closure, 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, 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)
}
}
-static void hook_ditf_rootdir_open_locale_cb(void *closure, 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)
}
}
-static void hook_ditf_queue_job_cb(void *closure, 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, 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, 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, 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);
}
#define _HOOK_DITF_(what,...) \
struct afb_hook_ditf *hook; \
+ 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, __VA_ARGS__); \
+ hook->itf->hook_ditf_##what(hook->closure, &hookid, __VA_ARGS__); \
} \
hook = hook->next; \
} \
va_end(ap);
}
-static void hook_svc_start_before_default_cb(void *closure, 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, 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, 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, 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, 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, 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, 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, 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));
}
#define _HOOK_SVC_(what,...) \
struct afb_hook_svc *hook; \
+ 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, __VA_ARGS__); \
+ hook->itf->hook_svc_##what(hook->closure, &hookid, __VA_ARGS__); \
} \
hook = hook->next; \
} \
va_end(ap);
}
-static void hook_evt_create_default_cb(void *closure, 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, 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, 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, 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, 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, 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, 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");
}
};
/******************************************************************************
- * section: hooks for tracing service interface (evt)
+ * section: hooks for tracing events interface (evt)
*****************************************************************************/
#define _HOOK_EVT_(what,...) \
struct afb_hook_evt *hook; \
+ 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, __VA_ARGS__); \
+ hook->itf->hook_evt_##what(hook->closure, &hookid, __VA_ARGS__); \
} \
hook = hook->next; \
} \
}
}
}
+
+/******************************************************************************
+ * section: default callbacks for globals (global)
+ *****************************************************************************/
+
+static void _hook_global_(const char *format, ...)
+{
+ va_list ap;
+ va_start(ap, format);
+ _hook_("global", format, ap);
+ va_end(ap);
+}
+
+static void hook_global_vverbose_default_cb(void *closure, const struct afb_hookid *hookid, int level, const char *file, int line, const char *func, const char *fmt, va_list args)
+{
+ int len;
+ char *msg;
+ va_list ap;
+
+ va_copy(ap, args);
+ len = vasprintf(&msg, fmt, ap);
+ va_end(ap);
+
+ if (len < 0)
+ _hook_global_("vverbose(%d, %s, %d, %s) -> %s ? ? ?", level, file, line, func, fmt);
+ else {
+ _hook_global_("vverbose(%d, %s, %d, %s) -> %s", level, file, line, func, msg);
+ free(msg);
+ }
+}
+
+static struct afb_hook_global_itf hook_global_default_itf = {
+ .hook_global_vverbose = hook_global_vverbose_default_cb
+};
+
+/******************************************************************************
+ * section: hooks for tracing globals (global)
+ *****************************************************************************/
+
+#define _HOOK_GLOBAL_(what,...) \
+ struct afb_hook_global *hook; \
+ struct afb_hookid hookid; \
+ pthread_rwlock_rdlock(&rwlock); \
+ init_hookid(&hookid); \
+ hook = list_of_global_hooks; \
+ while (hook) { \
+ if (hook->itf->hook_global_##what \
+ && (hook->flags & afb_hook_flag_global_##what) != 0) { \
+ hook->itf->hook_global_##what(hook->closure, &hookid, __VA_ARGS__); \
+ } \
+ hook = hook->next; \
+ } \
+ pthread_rwlock_unlock(&rwlock);
+
+static void afb_hook_global_vverbose(int level, const char *file, int line, const char *func, const char *fmt, va_list args)
+{
+ _HOOK_GLOBAL_(vverbose, level, file ?: "?", line, func ?: "?", fmt, args);
+}
+
+/******************************************************************************
+ * section: hooking globals (global)
+ *****************************************************************************/
+
+static void update_global()
+{
+ struct afb_hook_global *hook;
+ int flags = 0;
+
+ pthread_rwlock_rdlock(&rwlock);
+ hook = list_of_global_hooks;
+ while (hook) {
+ flags = hook->flags;
+ hook = hook->next;
+ }
+ verbose_observer = (flags & afb_hook_flag_global_vverbose) ? afb_hook_global_vverbose : NULL;
+ pthread_rwlock_unlock(&rwlock);
+}
+
+struct afb_hook_global *afb_hook_create_global(int flags, struct afb_hook_global_itf *itf, void *closure)
+{
+ struct afb_hook_global *hook;
+
+ /* alloc the result */
+ hook = calloc(1, sizeof *hook);
+ if (hook == NULL)
+ return NULL;
+
+ /* initialise the rest */
+ hook->refcount = 1;
+ hook->flags = flags;
+ hook->itf = itf ? itf : &hook_global_default_itf;
+ hook->closure = closure;
+
+ /* record the hook */
+ pthread_rwlock_wrlock(&rwlock);
+ hook->next = list_of_global_hooks;
+ list_of_global_hooks = hook;
+ pthread_rwlock_unlock(&rwlock);
+
+ /* update hooking */
+ update_global();
+
+ /* returns it */
+ return hook;
+}
+
+struct afb_hook_global *afb_hook_addref_global(struct afb_hook_global *hook)
+{
+ pthread_rwlock_wrlock(&rwlock);
+ hook->refcount++;
+ pthread_rwlock_unlock(&rwlock);
+ return hook;
+}
+
+void afb_hook_unref_global(struct afb_hook_global *hook)
+{
+ struct afb_hook_global **prv;
+
+ if (hook) {
+ pthread_rwlock_wrlock(&rwlock);
+ if (--hook->refcount)
+ hook = NULL;
+ else {
+ /* unlink */
+ prv = &list_of_global_hooks;
+ while (*prv && *prv != hook)
+ prv = &(*prv)->next;
+ if(*prv)
+ *prv = hook->next;
+ }
+ pthread_rwlock_unlock(&rwlock);
+ if (hook) {
+ /* free */
+ free(hook);
+
+ /* update hooking */
+ update_global();
+ }
+ }
+}
+
Code Review / src / app-framework-binder.git / blobdiff