Implement event notifier

[deliverable/lttng-ust.git] / include / lttng / ust-abi.h

diff --git a/include/lttng/ust-abi.h b/include/lttng/ust-abi.h
index 78aae7c73cbd265c651a3bac753273ee0a8e6665..302e6a36b80cb441cca42d7a3d6a297f3fd099ea 100644 (file)
--- a/include/lttng/ust-abi.h
+++ b/include/lttng/ust-abi.h
@@ -120,6 +120,18 @@ struct lttng_ust_event {
        } u;
 } LTTNG_PACKED;
 
+#define LTTNG_UST_EVENT_NOTIFIER_PADDING1      16
+struct lttng_ust_event_notifier {
+       struct lttng_ust_event event;
+       char padding[LTTNG_UST_EVENT_NOTIFIER_PADDING1];
+} LTTNG_PACKED;
+
+#define LTTNG_EVENT_NOTIFIER_NOTIFICATION_PADDING 32
+struct lttng_ust_event_notifier_notification {
+       uint64_t token;
+       char padding[LTTNG_EVENT_NOTIFIER_NOTIFICATION_PADDING];
+} LTTNG_PACKED;
+
 enum lttng_ust_field_type {
        LTTNG_UST_FIELD_OTHER                   = 0,
        LTTNG_UST_FIELD_INTEGER                 = 1,
@@ -218,6 +230,8 @@ enum lttng_ust_object_type {
        LTTNG_UST_OBJECT_TYPE_STREAM = 1,
        LTTNG_UST_OBJECT_TYPE_EVENT = 2,
        LTTNG_UST_OBJECT_TYPE_CONTEXT = 3,
+       LTTNG_UST_OBJECT_TYPE_EVENT_NOTIFIER_GROUP = 4,
+       LTTNG_UST_OBJECT_TYPE_EVENT_NOTIFIER = 5,
 };
 
 #define LTTNG_UST_OBJECT_DATA_PADDING1 32
@@ -292,6 +306,7 @@ struct lttng_ust_event_exclusion {
 #define LTTNG_UST_WAIT_QUIESCENT               _UST_CMD(0x43)
 #define LTTNG_UST_REGISTER_DONE                        _UST_CMD(0x44)
 #define LTTNG_UST_TRACEPOINT_FIELD_LIST                _UST_CMD(0x45)
+#define LTTNG_UST_EVENT_NOTIFIER_GROUP_CREATE  _UST_CMD(0x46)
 
 /* Session FD commands */
 #define LTTNG_UST_CHANNEL                      \
@@ -323,6 +338,10 @@ struct lttng_ust_event_exclusion {
 #define LTTNG_UST_FILTER                       _UST_CMD(0xA0)
 #define LTTNG_UST_EXCLUSION                    _UST_CMD(0xA1)
 
+/* Event notifier group commands */
+#define LTTNG_UST_EVENT_NOTIFIER_CREATE                \
+       _UST_CMDW(0xB0, struct lttng_ust_event_notifier)
+
 #define LTTNG_UST_ROOT_HANDLE  0
 
 struct lttng_ust_obj;
@@ -342,6 +361,9 @@ union ust_args {
        struct {
                char *ctxname;
        } app_context;
+       struct {
+               int event_notifier_notif_fd;
+       } event_notifier_handle;
 };
 
 struct lttng_ust_objd_ops {