SoW-2019-0007-2: Dynamic Snapshot: Triggers send partial event payload with notifications

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

diff --git a/include/lttng/ust-abi.h b/include/lttng/ust-abi.h
index a823de542feac84147228e232b76533bcfa06394..a2d25e373d05bfeda5ab9aa3badd14802e9933f2 100644 (file)
--- a/include/lttng/ust-abi.h
+++ b/include/lttng/ust-abi.h
@@ -103,6 +103,30 @@ struct lttng_ust_stream {
         */
 } LTTNG_PACKED;
 
+#define LTTNG_UST_TRIGGER_PADDING1     16
+#define LTTNG_UST_TRIGGER_PADDING2     (LTTNG_UST_SYM_NAME_LEN + 32)
+struct lttng_ust_trigger {
+       uint64_t id;
+       enum lttng_ust_instrumentation instrumentation;
+       char name[LTTNG_UST_SYM_NAME_LEN];      /* event name */
+
+       enum lttng_ust_loglevel_type loglevel_type;
+       int loglevel;   /* value, -1: all */
+       char padding[LTTNG_UST_TRIGGER_PADDING1];
+
+       /* Per instrumentation type configuration */
+       union {
+               char padding[LTTNG_UST_TRIGGER_PADDING2];
+       } u;
+} LTTNG_PACKED;
+
+#define LTTNG_TRIGGER_NOTIFICATION_PADDING 32
+struct lttng_ust_trigger_notification {
+       uint64_t id;
+       uint16_t capture_buf_size;
+       char padding[LTTNG_TRIGGER_NOTIFICATION_PADDING];
+} LTTNG_PACKED;
+
 #define LTTNG_UST_EVENT_PADDING1       16
 #define LTTNG_UST_EVENT_PADDING2       (LTTNG_UST_SYM_NAME_LEN + 32)
 struct lttng_ust_event {
@@ -216,6 +240,8 @@ 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_TRIGGER_GROUP = 4,
+       LTTNG_UST_OBJECT_TYPE_TRIGGER = 5,
 };
 
 #define LTTNG_UST_OBJECT_DATA_PADDING1 32
@@ -266,6 +292,16 @@ struct lttng_ust_filter_bytecode {
        char data[0];
 } LTTNG_PACKED;
 
+#define CAPTURE_BYTECODE_MAX_LEN       65536
+#define LTTNG_UST_CAPTURE_PADDING      32
+struct lttng_ust_capture_bytecode {
+       uint32_t len;
+       uint32_t reloc_offset;
+       uint64_t seqnum;
+       char padding[LTTNG_UST_CAPTURE_PADDING];
+       char data[0];
+} LTTNG_PACKED;
+
 #define LTTNG_UST_EXCLUSION_PADDING    32
 struct lttng_ust_event_exclusion {
        uint32_t count;
@@ -321,6 +357,12 @@ struct lttng_ust_event_exclusion {
 #define LTTNG_UST_FILTER                       _UST_CMD(0xA0)
 #define LTTNG_UST_EXCLUSION                    _UST_CMD(0xA1)
 
+/* Trigger commands */
+#define LTTNG_UST_TRIGGER_GROUP_CREATE         _UST_CMD(0xB0)
+#define LTTNG_UST_TRIGGER_CREATE               \
+       _UST_CMDW(0xB1, struct lttng_ust_trigger)
+#define LTTNG_UST_CAPTURE                      _UST_CMD(0xB2)
+
 #define LTTNG_UST_ROOT_HANDLE  0
 
 struct lttng_ust_obj;
@@ -340,6 +382,9 @@ union ust_args {
        struct {
                char *ctxname;
        } app_context;
+       struct {
+               int trigger_notif_fd;
+       } trigger_handle;
 };
 
 struct lttng_ust_objd_ops {