X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fevent-notifier-error-accounting.h;h=d42fff650d8cd5aeaeb7582b65e18910b6c4eaf0;hb=0efb2ad7fc448283184e43d6fb0915febae45384;hp=1dea73948337feb6b19a6eb6ea8ae3558e19df86;hpb=90aa04a116a8be510b9d256b47de6bbb4144fb8b;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/event-notifier-error-accounting.h b/src/bin/lttng-sessiond/event-notifier-error-accounting.h
index 1dea73948..d42fff650 100644
--- a/src/bin/lttng-sessiond/event-notifier-error-accounting.h
+++ b/src/bin/lttng-sessiond/event-notifier-error-accounting.h
@@ -9,23 +9,71 @@
 #define _EVENT_NOTIFIER_ERROR_ACCOUNTING_H
 
 #include <stdint.h>
+
 #include <lttng/trigger/trigger.h>
 
+#include "ust-app.h"
+
 enum event_notifier_error_accounting_status {
 	EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_OK,
 	EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_ERR,
 	EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_NOT_FOUND,
 	EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_NOMEM,
 	EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_NO_INDEX_AVAILABLE,
+	EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_APP_DEAD,
 };
 
+/*
+ * Initialize the event notifier error accounting system.
+ * `buffer_size_kernel` and `buffer_size_ust` represent the number of buckets
+ * to be allocated for each domain.
+ */
 enum event_notifier_error_accounting_status
-event_notifier_error_accounting_init(uint64_t nb_bucket);
+event_notifier_error_accounting_init(uint64_t buffer_size_kernel,
+		uint64_t buffer_size_ust);
 
+/*
+ * Register the kernel event notifier group.
+ * This allocates the counter object on the kernel side.
+ */
 enum event_notifier_error_accounting_status
 event_notifier_error_accounting_register_kernel(
 		int kernel_event_notifier_group_fd);
 
+#ifdef HAVE_LIBLTTNG_UST_CTL
+
+/*
+ * Register a UST application.
+ *
+ * This reuses (or creates) the counter object of the app UID.
+ */
+enum event_notifier_error_accounting_status
+event_notifier_error_accounting_register_app(struct ust_app *app);
+
+/*
+ * Unregister a UST application.
+ */
+enum event_notifier_error_accounting_status
+event_notifier_error_accounting_unregister_app(struct ust_app *app);
+#else /* HAVE_LIBLTTNG_UST_CTL */
+static inline
+enum event_notifier_error_accounting_status
+event_notifier_error_accounting_register_app(struct ust_app *app)
+{
+	return EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_OK;
+}
+
+static inline
+enum event_notifier_error_accounting_status
+event_notifier_error_accounting_unregister_app(struct ust_app *app)
+{
+	return EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_OK;
+}
+#endif /* HAVE_LIBLTTNG_UST_CTL */
+
+/*
+ * Allocates, reserves and returns the error counter index for that trigger.
+ */
 enum event_notifier_error_accounting_status
 event_notifier_error_accounting_register_event_notifier(
 		const struct lttng_trigger *trigger,