From: Mathieu Desnoyers Date: Wed, 3 Nov 2021 15:25:59 +0000 (-0400) Subject: Refactoring: combine match functions for notifier and recorder X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=5c6ec66ac09a37f1604434a27bafd38364107841;p=lttng-modules.git Refactoring: combine match functions for notifier and recorder Signed-off-by: Mathieu Desnoyers Change-Id: Ib9ee7d770328791d584b4f4e68b441999984de29 --- diff --git a/src/lttng-events.c b/src/lttng-events.c index 039b43e6..a467fd64 100644 --- a/src/lttng-events.c +++ b/src/lttng-events.c @@ -2011,36 +2011,85 @@ int lttng_desc_match_enabler(const struct lttng_kernel_event_desc *desc, } static -int lttng_event_enabler_match_event(struct lttng_event_recorder_enabler *event_enabler, - struct lttng_kernel_event_recorder *event_recorder) +bool lttng_event_enabler_match_event(struct lttng_event_enabler_common *event_enabler, + struct lttng_kernel_event_common *event) { - struct lttng_event_enabler_common *base_enabler = lttng_event_recorder_enabler_as_enabler( - event_enabler); + if (event_enabler->event_param.instrumentation != event->priv->instrumentation) + return false; - if (base_enabler->event_param.instrumentation != event_recorder->priv->parent.instrumentation) - return 0; - if (lttng_desc_match_enabler(event_recorder->priv->parent.desc, base_enabler) - && event_recorder->chan == event_enabler->chan) - return 1; - else - return 0; + switch (event_enabler->enabler_type) { + case LTTNG_EVENT_ENABLER_TYPE_RECORDER: + { + struct lttng_event_recorder_enabler *event_recorder_enabler = + container_of(event_enabler, struct lttng_event_recorder_enabler, parent); + struct lttng_kernel_event_recorder *event_recorder = + container_of(event, struct lttng_kernel_event_recorder, parent); + + if (lttng_desc_match_enabler(event->priv->desc, event_enabler) + && event_recorder->chan == event_recorder_enabler->chan) + return true; + else + return false; + } + case LTTNG_EVENT_ENABLER_TYPE_NOTIFIER: + { + struct lttng_event_notifier_enabler *event_notifier_enabler = + container_of(event_enabler, struct lttng_event_notifier_enabler, parent); + struct lttng_kernel_event_notifier *event_notifier = + container_of(event, struct lttng_kernel_event_notifier, parent); + + if (lttng_desc_match_enabler(event->priv->desc, event_enabler) + && event_notifier->priv->group == event_notifier_enabler->group + && event->priv->user_token == event_enabler->user_token) + return true; + else + return false; + } + default: + WARN_ON_ONCE(1); + return false; + } } static -int lttng_event_notifier_enabler_match_event_notifier(struct lttng_event_notifier_enabler *event_notifier_enabler, - struct lttng_kernel_event_notifier *event_notifier) +bool lttng_event_enabler_desc_match_event(struct lttng_event_enabler_common *event_enabler, + const struct lttng_kernel_event_desc *desc, + struct lttng_kernel_event_common *event) { - struct lttng_event_enabler_common *base_enabler = lttng_event_notifier_enabler_as_enabler( - event_notifier_enabler); + if (event_enabler->event_param.instrumentation != event->priv->instrumentation) + return false; - if (base_enabler->event_param.instrumentation != event_notifier->priv->parent.instrumentation) - return 0; - if (lttng_desc_match_enabler(event_notifier->priv->parent.desc, base_enabler) - && event_notifier->priv->group == event_notifier_enabler->group - && event_notifier->priv->parent.user_token == event_notifier_enabler->parent.user_token) - return 1; - else - return 0; + switch (event_enabler->enabler_type) { + case LTTNG_EVENT_ENABLER_TYPE_RECORDER: + { + struct lttng_event_recorder_enabler *event_recorder_enabler = + container_of(event_enabler, struct lttng_event_recorder_enabler, parent); + struct lttng_kernel_event_recorder *event_recorder = + container_of(event, struct lttng_kernel_event_recorder, parent); + + if (event->priv->desc == desc && event_recorder->chan == event_recorder_enabler->chan) + return true; + else + return false; + } + case LTTNG_EVENT_ENABLER_TYPE_NOTIFIER: + { + struct lttng_event_notifier_enabler *event_notifier_enabler = + container_of(event_enabler, struct lttng_event_notifier_enabler, parent); + struct lttng_kernel_event_notifier *event_notifier = + container_of(event, struct lttng_kernel_event_notifier, parent); + + if (event->priv->desc == desc + && event_notifier->priv->group == event_notifier_enabler->group + && event->priv->user_token == event_enabler->user_token) + return true; + else + return false; + } + default: + WARN_ON_ONCE(1); + return false; + } } static @@ -2076,7 +2125,6 @@ void lttng_create_tracepoint_event_if_missing(struct lttng_event_recorder_enable for (i = 0; i < probe_desc->nr_events; i++) { int found = 0; struct hlist_head *head; - struct lttng_kernel_event_recorder_private *event_recorder_priv; struct lttng_kernel_event_recorder *event_recorder; struct lttng_kernel_event_common_private *event_priv; @@ -2090,9 +2138,7 @@ void lttng_create_tracepoint_event_if_missing(struct lttng_event_recorder_enable */ head = utils_borrow_hash_table_bucket(events_ht->table, LTTNG_EVENT_HT_SIZE, desc->event_name); lttng_hlist_for_each_entry(event_priv, head, hlist_node) { - event_recorder_priv = container_of(event_priv, struct lttng_kernel_event_recorder_private, parent); - if (event_priv->desc == desc - && event_recorder_priv->pub->chan == event_enabler->chan) + if (lttng_event_enabler_desc_match_event(&event_enabler->parent, desc, event_priv->pub)) found = 1; } if (found) @@ -2144,8 +2190,7 @@ void lttng_create_tracepoint_event_notifier_if_missing(struct lttng_event_notifi head = utils_borrow_hash_table_bucket(events_ht->table, LTTNG_EVENT_HT_SIZE, desc->event_name); lttng_hlist_for_each_entry(event_priv, head, hlist_node) { - if (event_priv->desc == desc - && event_priv->user_token == event_notifier_enabler->parent.user_token) + if (lttng_event_enabler_desc_match_event(&event_notifier_enabler->parent, desc, event_priv->pub)) found = 1; } if (found) @@ -2230,7 +2275,7 @@ int lttng_event_enabler_ref_events(struct lttng_event_recorder_enabler *event_en struct lttng_kernel_event_recorder *event_recorder = event_recorder_priv->pub; struct lttng_enabler_ref *enabler_ref; - if (!lttng_event_enabler_match_event(event_enabler, event_recorder)) + if (!lttng_event_enabler_match_event(&event_enabler->parent, &event_recorder->parent)) continue; enabler_ref = lttng_enabler_ref(&event_recorder_priv->parent.enablers_ref_head, lttng_event_recorder_enabler_as_enabler(event_enabler)); @@ -2316,7 +2361,7 @@ int lttng_event_notifier_enabler_ref_event_notifiers( struct lttng_kernel_event_notifier *event_notifier = event_notifier_priv->pub; struct lttng_enabler_ref *enabler_ref; - if (!lttng_event_notifier_enabler_match_event_notifier(event_notifier_enabler, event_notifier)) + if (!lttng_event_enabler_match_event(&event_notifier_enabler->parent, &event_notifier->parent)) continue; enabler_ref = lttng_enabler_ref(&event_notifier_priv->parent.enablers_ref_head,