X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fafb-hook.c;h=33cb91bfa3d41c4a43b63594b80f812e712b036e;hb=fb678ae817f739d9c7208f9165f6c04b2028af26;hp=b5dbe154d203c3222edf80aac0ecae22663352ae;hpb=379b11154f301a30e79154c0af1ef1f257149efa;p=src%2Fapp-framework-binder.git diff --git a/src/afb-hook.c b/src/afb-hook.c index b5dbe154..33cb91bf 100644 --- a/src/afb-hook.c +++ b/src/afb-hook.c @@ -47,10 +47,10 @@ struct afb_hook_xreq { struct afb_hook_xreq *next; /**< next hook */ unsigned refcount; /**< reference count */ + unsigned flags; /**< hook flags */ char *api; /**< api hooked or NULL for any */ char *verb; /**< verb hooked or NULL for any */ struct afb_session *session; /**< session hooked or NULL if any */ - unsigned flags; /**< hook flags */ struct afb_hook_xreq_itf *itf; /**< interface of hook */ void *closure; /**< closure for callbacks */ }; @@ -61,8 +61,8 @@ struct afb_hook_xreq { struct afb_hook_ditf { struct afb_hook_ditf *next; /**< next hook */ unsigned refcount; /**< reference count */ - char *api; /**< api hooked or NULL for any */ unsigned flags; /**< hook flags */ + char *api; /**< api hooked or NULL for any */ struct afb_hook_ditf_itf *itf; /**< interface of hook */ void *closure; /**< closure for callbacks */ }; @@ -73,8 +73,8 @@ struct afb_hook_ditf { struct afb_hook_svc { struct afb_hook_svc *next; /**< next hook */ unsigned refcount; /**< reference count */ - char *api; /**< api hooked or NULL for any */ unsigned flags; /**< hook flags */ + char *api; /**< api hooked or NULL for any */ struct afb_hook_svc_itf *itf; /**< interface of hook */ void *closure; /**< closure for callbacks */ }; @@ -85,12 +85,24 @@ struct afb_hook_svc { struct afb_hook_evt { struct afb_hook_evt *next; /**< next hook */ unsigned refcount; /**< reference count */ - char *pattern; /**< event pattern name hooked or NULL for any */ unsigned flags; /**< hook flags */ + char *pattern; /**< event pattern name hooked or NULL for any */ struct afb_hook_evt_itf *itf; /**< interface of hook */ void *closure; /**< closure for callbacks */ }; +/** + * Definition of a hook for session + */ +struct afb_hook_session { + struct afb_hook_session *next; /**< next hook */ + unsigned refcount; /**< reference count */ + unsigned flags; /**< hook flags */ + char *pattern; /**< event pattern name hooked or NULL for any */ + struct afb_hook_session_itf *itf; /**< interface of hook */ + void *closure; /**< closure for callbacks */ +}; + /** * Definition of a hook for global */ @@ -117,6 +129,9 @@ static struct afb_hook_svc *list_of_svc_hooks = NULL; /* list of hooks for evt */ static struct afb_hook_evt *list_of_evt_hooks = NULL; +/* list of hooks for session */ +static struct afb_hook_session *list_of_session_hooks = NULL; + /* list of hooks for global */ static struct afb_hook_global *list_of_global_hooks = NULL; @@ -1429,6 +1444,178 @@ void afb_hook_unref_evt(struct afb_hook_evt *hook) } } +/****************************************************************************** + * section: default callbacks for sessions (session) + *****************************************************************************/ + +static void _hook_session_(struct afb_session *session, const char *format, ...) +{ + va_list ap; + va_start(ap, format); + _hook_("session-%s", format, ap, afb_session_uuid(session)); + va_end(ap); +} + +static void hook_session_create_default_cb(void *closure, const struct afb_hookid *hookid, struct afb_session *session) +{ + _hook_session_(session, "create -> token=%s", afb_session_token(session)); +} + +static void hook_session_close_default_cb(void *closure, const struct afb_hookid *hookid, struct afb_session *session) +{ + _hook_session_(session, "close"); +} + +static void hook_session_destroy_default_cb(void *closure, const struct afb_hookid *hookid, struct afb_session *session) +{ + _hook_session_(session, "destroy"); +} + +static void hook_session_renew_default_cb(void *closure, const struct afb_hookid *hookid, struct afb_session *session) +{ + _hook_session_(session, "renew -> token=%s", afb_session_token(session)); +} + +static void hook_session_addref_default_cb(void *closure, const struct afb_hookid *hookid, struct afb_session *session) +{ + _hook_session_(session, "addref"); +} + +static void hook_session_unref_default_cb(void *closure, const struct afb_hookid *hookid, struct afb_session *session) +{ + _hook_session_(session, "unref"); +} + +static struct afb_hook_session_itf hook_session_default_itf = { + .hook_session_create = hook_session_create_default_cb, + .hook_session_close = hook_session_close_default_cb, + .hook_session_destroy = hook_session_destroy_default_cb, + .hook_session_renew = hook_session_renew_default_cb, + .hook_session_addref = hook_session_addref_default_cb, + .hook_session_unref = hook_session_unref_default_cb +}; + +/****************************************************************************** + * section: hooks for tracing sessions (session) + *****************************************************************************/ + +#define _HOOK_SESSION_(what,...) \ + struct afb_hook_session *hook; \ + struct afb_hookid hookid; \ + const char *sessid = 0; \ + pthread_rwlock_rdlock(&rwlock); \ + init_hookid(&hookid); \ + hook = list_of_session_hooks; \ + while (hook) { \ + if (hook->itf->hook_session_##what \ + && (hook->flags & afb_hook_flag_session_##what) != 0 \ + && (!hook->pattern || !fnmatch(hook->pattern, (sessid?:(sessid=afb_session_uuid(session))), FNM_CASEFOLD))) { \ + hook->itf->hook_session_##what(hook->closure, &hookid, __VA_ARGS__); \ + } \ + hook = hook->next; \ + } \ + pthread_rwlock_unlock(&rwlock); + +void afb_hook_session_create(struct afb_session *session) +{ + _HOOK_SESSION_(create, session); +} + +void afb_hook_session_close(struct afb_session *session) +{ + _HOOK_SESSION_(close, session); +} + +void afb_hook_session_destroy(struct afb_session *session) +{ + _HOOK_SESSION_(destroy, session); +} + +void afb_hook_session_renew(struct afb_session *session) +{ + _HOOK_SESSION_(renew, session); +} + +void afb_hook_session_addref(struct afb_session *session) +{ + _HOOK_SESSION_(addref, session); +} + +void afb_hook_session_unref(struct afb_session *session) +{ + _HOOK_SESSION_(unref, session); +} + + +/****************************************************************************** + * section: hooking sessions (session) + *****************************************************************************/ + +struct afb_hook_session *afb_hook_create_session(const char *pattern, int flags, struct afb_hook_session_itf *itf, void *closure) +{ + struct afb_hook_session *hook; + + /* alloc the result */ + hook = calloc(1, sizeof *hook); + if (hook == NULL) + return NULL; + + /* get a copy of the names */ + hook->pattern = pattern ? strdup(pattern) : NULL; + if (pattern && !hook->pattern) { + free(hook); + return NULL; + } + + /* initialise the rest */ + hook->refcount = 1; + hook->flags = flags; + hook->itf = itf ? itf : &hook_session_default_itf; + hook->closure = closure; + + /* record the hook */ + pthread_rwlock_wrlock(&rwlock); + hook->next = list_of_session_hooks; + list_of_session_hooks = hook; + pthread_rwlock_unlock(&rwlock); + + /* returns it */ + return hook; +} + +struct afb_hook_session *afb_hook_addref_session(struct afb_hook_session *hook) +{ + pthread_rwlock_wrlock(&rwlock); + hook->refcount++; + pthread_rwlock_unlock(&rwlock); + return hook; +} + +void afb_hook_unref_session(struct afb_hook_session *hook) +{ + struct afb_hook_session **prv; + + if (hook) { + pthread_rwlock_wrlock(&rwlock); + if (--hook->refcount) + hook = NULL; + else { + /* unlink */ + prv = &list_of_session_hooks; + while (*prv && *prv != hook) + prv = &(*prv)->next; + if(*prv) + *prv = hook->next; + } + pthread_rwlock_unlock(&rwlock); + if (hook) { + /* free */ + free(hook->pattern); + free(hook); + } + } +} + /****************************************************************************** * section: default callbacks for globals (global) *****************************************************************************/