Write context fields into trace

[lttng-modules.git] / ltt-events.h

diff --git a/ltt-events.h b/ltt-events.h
index 1a5b5d5cf6c196252458ae18ec65d8fb57637baf..bea5af1c988eeeb4e0539b6f2a34c46ec1205b22 100644 (file)
--- a/ltt-events.h
+++ b/ltt-events.h
@@ -120,7 +120,10 @@ struct lttng_event_field {
 struct lttng_ctx_field {
        const char *name;
        struct lttng_type type;
-       void *callback;
+       size_t (*get_size)(size_t offset);
+       void (*record)(struct lttng_ctx_field *field,
+                      struct lib_ring_buffer_ctx *ctx,
+                      struct ltt_channel *chan);
        union {
                struct {
                        struct perf_event **e;  /* per-cpu array */
@@ -161,6 +164,7 @@ struct ltt_event {
        struct ltt_channel *chan;
        const struct lttng_event_desc *desc;
        void *filter;
+       struct lttng_ctx *ctx;
        enum lttng_kernel_instrumentation instrumentation;
        union {
                struct {
@@ -202,6 +206,7 @@ struct ltt_channel_ops {
 struct ltt_channel {
        unsigned int id;
        struct channel *chan;           /* Channel buffers */
+       struct lttng_ctx *ctx;
        /* Event ID management */
        struct ltt_session *session;
        struct file *file;              /* File associated to channel */
@@ -215,6 +220,7 @@ struct ltt_channel {
 
 struct ltt_session {
        int active;                     /* Is trace session active ? */
+       struct lttng_ctx *ctx;
        struct file *file;              /* File associated to session */
        struct ltt_channel *metadata;   /* Metadata channel */
        struct list_head chan;          /* Channel list head */