#include "common/dynamic-type.h"
struct lttng_ust_registered_context_provider;
+struct lttng_ust_probe_ctx;
/*
* Context value
uint32_t struct_size;
const char *name;
- size_t (*get_size)(void *priv, size_t offset);
- void (*record)(void *priv, struct lttng_ust_ring_buffer_ctx *ctx,
- struct lttng_ust_channel_buffer *chan);
- void (*get_value)(void *priv, struct lttng_ust_ctx_value *value);
+ size_t (*get_size)(void *priv, struct lttng_ust_probe_ctx *probe_ctx,
+ size_t offset);
+ void (*record)(void *priv, struct lttng_ust_probe_ctx *probe_ctx,
+ struct lttng_ust_ring_buffer_ctx *ctx,
+ struct lttng_ust_channel_buffer *chan);
+ void (*get_value)(void *priv, struct lttng_ust_probe_ctx *probe_ctx,
+ struct lttng_ust_ctx_value *value);
void *priv;
/* End of base ABI. Fields below should be used after checking struct_size. */
};
+/*
+ * Application context callback private data
+ *
+ * IMPORTANT: this structure is part of the ABI between the probe and
+ * UST. Fields need to be only added at the end, never reordered, never
+ * removed.
+ *
+ * The field @struct_size should be used to determine the size of the
+ * structure. It should be queried before using additional fields added
+ * at the end of the structure.
+ */
+
+struct lttng_ust_app_context {
+ uint32_t struct_size;
+
+ struct lttng_ust_event_field *event_field;
+ char *ctx_name;
+
+ /* End of base ABI. Fields below should be used after checking struct_size. */
+};
+
/*
* Returns an opaque pointer on success, which must be passed to
* lttng_ust_context_provider_unregister for unregistration. Returns